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dep ensure for Prometheus deps

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This commit is contained in:
Konrad Wojas 2017-10-25 12:18:30 +08:00 • committed by Zlatko Čalušić
parent 4cd82b6802
commit ff6270ab62
115 changed files with 7486 additions and 8793 deletions
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50
Gopkg.lock generated
View file

@ -1,6 +1,18 @@
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
branch = "master"
name = "github.com/beorn7/perks"
packages = ["quantile"]
revision = "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9"
[[projects]]
branch = "master"
name = "github.com/golang/protobuf"
packages = ["proto"]
revision = "1643683e1b54a9e88ad26d98f81400c8c9d9f4f9"
[[projects]]
name = "github.com/gorilla/handlers"
packages = ["."]
@ -14,6 +26,42 @@
revision = "76626ae9c91c4f2a10f34cad8ce83ea42c93bb75"
version = "v1.0"
[[projects]]
name = "github.com/matttproud/golang_protobuf_extensions"
packages = ["pbutil"]
revision = "3247c84500bff8d9fb6d579d800f20b3e091582c"
version = "v1.0.0"
[[projects]]
branch = "master"
name = "github.com/miolini/datacounter"
packages = ["."]
revision = "2fb1a1d5c3907155bbff63ad8b8a146ced61eba6"
[[projects]]
name = "github.com/prometheus/client_golang"
packages = ["prometheus","prometheus/promhttp"]
revision = "c5b7fccd204277076155f10851dad72b76a49317"
version = "v0.8.0"
[[projects]]
branch = "master"
name = "github.com/prometheus/client_model"
packages = ["go"]
revision = "6f3806018612930941127f2a7c6c453ba2c527d2"
[[projects]]
branch = "master"
name = "github.com/prometheus/common"
packages = ["expfmt","internal/bitbucket.org/ww/goautoneg","model"]
revision = "1bab55dd05dbff384524a6a1c99006d9eb5f139b"
[[projects]]
branch = "master"
name = "github.com/prometheus/procfs"
packages = [".","xfs"]
revision = "a6e9df898b1336106c743392c48ee0b71f5c4efa"
[[projects]]
branch = "master"
name = "github.com/spf13/cobra"
@ -36,6 +84,6 @@
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "ded9eeab22bffb0bbc4513634907b9399f964d8de2276e18e00363245f980c55"
inputs-digest = "a4c77a43dac77efaa88292cc9adf9292de5eb9ad50aac23b7275726db9a88fcb"
solver-name = "gps-cdcl"
solver-version = 1

6
vendor/github.com/matttproud/golang_protobuf_extensions/.travis.yml generated vendored
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@ -1,8 +1,2 @@
language: go
go:
- 1.5
- 1.6
- tip
script: make -f Makefile.TRAVIS

15
vendor/github.com/matttproud/golang_protobuf_extensions/Makefile.TRAVIS generated vendored
View file

@ -1,15 +0,0 @@
all: build cover test vet
build:
go build -v ./...
cover: test
$(MAKE) -C pbutil cover
test: build
go test -v ./...
vet: build
go vet -v ./...
.PHONY: build cover test vet

1
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore generated vendored
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@ -1 +0,0 @@
cover.dat

7
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile generated vendored
View file

@ -1,7 +0,0 @@
all:
cover:
go test -cover -v -coverprofile=cover.dat ./...
go tool cover -func cover.dat
.PHONY: cover

25
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/all_test.go generated vendored
View file

@ -18,15 +18,14 @@ import (
"bytes"
"testing"
"github.com/golang/protobuf/proto"
. "github.com/matttproud/golang_protobuf_extensions/testdata"
. "github.com/golang/protobuf/proto"
. "github.com/golang/protobuf/proto/testdata"
)
func TestWriteDelimited(t *testing.T) {
t.Parallel()
for _, test := range []struct {
msg proto.Message
msg Message
buf []byte
n int
err error
@ -43,7 +42,7 @@ func TestWriteDelimited(t *testing.T) {
},
{
msg: &Strings{
StringField: proto.String(`This is my gigantic, unhappy string. It exceeds
StringField: String(`This is my gigantic, unhappy string. It exceeds
the encoding size of a single byte varint. We are using it to fuzz test the
correctness of the header decoding mechanisms, which may prove problematic.
I expect it may. Let's hope you enjoy testing as much as we do.`),
@ -83,7 +82,7 @@ func TestReadDelimited(t *testing.T) {
t.Parallel()
for _, test := range []struct {
buf []byte
msg proto.Message
msg Message
n int
err error
}{
@ -117,7 +116,7 @@ func TestReadDelimited(t *testing.T) {
106, 111, 121, 32, 116, 101, 115, 116, 105, 110, 103, 32, 97, 115, 32,
109, 117, 99, 104, 32, 97, 115, 32, 119, 101, 32, 100, 111, 46},
msg: &Strings{
StringField: proto.String(`This is my gigantic, unhappy string. It exceeds
StringField: String(`This is my gigantic, unhappy string. It exceeds
the encoding size of a single byte varint. We are using it to fuzz test the
correctness of the header decoding mechanisms, which may prove problematic.
I expect it may. Let's hope you enjoy testing as much as we do.`),
@ -125,12 +124,12 @@ I expect it may. Let's hope you enjoy testing as much as we do.`),
n: 271,
},
} {
msg := proto.Clone(test.msg)
msg := Clone(test.msg)
msg.Reset()
if n, err := ReadDelimited(bytes.NewBuffer(test.buf), msg); n != test.n || err != test.err {
t.Fatalf("ReadDelimited(%v, msg) = %v, %v; want %v, %v", test.buf, n, err, test.n, test.err)
}
if !proto.Equal(msg, test.msg) {
if !Equal(msg, test.msg) {
t.Fatalf("ReadDelimited(%v, msg); msg = %v; want %v", test.buf, msg, test.msg)
}
}
@ -138,12 +137,12 @@ I expect it may. Let's hope you enjoy testing as much as we do.`),
func TestEndToEndValid(t *testing.T) {
t.Parallel()
for _, test := range [][]proto.Message{
for _, test := range [][]Message{
{&Empty{}},
{&GoEnum{Foo: FOO_FOO1.Enum()}, &Empty{}, &GoEnum{Foo: FOO_FOO1.Enum()}},
{&GoEnum{Foo: FOO_FOO1.Enum()}},
{&Strings{
StringField: proto.String(`This is my gigantic, unhappy string. It exceeds
StringField: String(`This is my gigantic, unhappy string. It exceeds
the encoding size of a single byte varint. We are using it to fuzz test the
correctness of the header decoding mechanisms, which may prove problematic.
I expect it may. Let's hope you enjoy testing as much as we do.`),
@ -162,12 +161,12 @@ I expect it may. Let's hope you enjoy testing as much as we do.`),
}
var read int
for i, msg := range test {
out := proto.Clone(msg)
out := Clone(msg)
out.Reset()
n, _ := ReadDelimited(&buf, out)
// Decide to do EOF checking?
read += n
if !proto.Equal(out, msg) {
if !Equal(out, msg) {
t.Fatalf("out = %v; want %v[%d] = %#v", out, test, i, msg)
}
}

103
vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/fixtures_test.go generated vendored Normal file
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@ -0,0 +1,103 @@
// Copyright 2010 The Go Authors. All rights reserved.
// http://github.com/golang/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package pbutil
import (
. "github.com/golang/protobuf/proto"
. "github.com/golang/protobuf/proto/testdata"
)
// FROM https://github.com/golang/protobuf/blob/master/proto/all_test.go.
func initGoTestField() *GoTestField {
f := new(GoTestField)
f.Label = String("label")
f.Type = String("type")
return f
}
// These are all structurally equivalent but the tag numbers differ.
// (It's remarkable that required, optional, and repeated all have
// 8 letters.)
func initGoTest_RequiredGroup() *GoTest_RequiredGroup {
return &GoTest_RequiredGroup{
RequiredField: String("required"),
}
}
func initGoTest_OptionalGroup() *GoTest_OptionalGroup {
return &GoTest_OptionalGroup{
RequiredField: String("optional"),
}
}
func initGoTest_RepeatedGroup() *GoTest_RepeatedGroup {
return &GoTest_RepeatedGroup{
RequiredField: String("repeated"),
}
}
func initGoTest(setdefaults bool) *GoTest {
pb := new(GoTest)
if setdefaults {
pb.F_BoolDefaulted = Bool(Default_GoTest_F_BoolDefaulted)
pb.F_Int32Defaulted = Int32(Default_GoTest_F_Int32Defaulted)
pb.F_Int64Defaulted = Int64(Default_GoTest_F_Int64Defaulted)
pb.F_Fixed32Defaulted = Uint32(Default_GoTest_F_Fixed32Defaulted)
pb.F_Fixed64Defaulted = Uint64(Default_GoTest_F_Fixed64Defaulted)
pb.F_Uint32Defaulted = Uint32(Default_GoTest_F_Uint32Defaulted)
pb.F_Uint64Defaulted = Uint64(Default_GoTest_F_Uint64Defaulted)
pb.F_FloatDefaulted = Float32(Default_GoTest_F_FloatDefaulted)
pb.F_DoubleDefaulted = Float64(Default_GoTest_F_DoubleDefaulted)
pb.F_StringDefaulted = String(Default_GoTest_F_StringDefaulted)
pb.F_BytesDefaulted = Default_GoTest_F_BytesDefaulted
pb.F_Sint32Defaulted = Int32(Default_GoTest_F_Sint32Defaulted)
pb.F_Sint64Defaulted = Int64(Default_GoTest_F_Sint64Defaulted)
}
pb.Kind = GoTest_TIME.Enum()
pb.RequiredField = initGoTestField()
pb.F_BoolRequired = Bool(true)
pb.F_Int32Required = Int32(3)
pb.F_Int64Required = Int64(6)
pb.F_Fixed32Required = Uint32(32)
pb.F_Fixed64Required = Uint64(64)
pb.F_Uint32Required = Uint32(3232)
pb.F_Uint64Required = Uint64(6464)
pb.F_FloatRequired = Float32(3232)
pb.F_DoubleRequired = Float64(6464)
pb.F_StringRequired = String("string")
pb.F_BytesRequired = []byte("bytes")
pb.F_Sint32Required = Int32(-32)
pb.F_Sint64Required = Int64(-64)
pb.Requiredgroup = initGoTest_RequiredGroup()
return pb
}

4
vendor/github.com/matttproud/golang_protobuf_extensions/testdata/README.THIRD_PARTY generated vendored
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@ -1,4 +0,0 @@
test.pb.go and test.proto are third-party data.
SOURCE: https://github.com/golang/protobuf
REVISION: bf531ff1a004f24ee53329dfd5ce0b41bfdc17df

4029
vendor/github.com/matttproud/golang_protobuf_extensions/testdata/test.pb.go generated vendored
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File diff suppressed because it is too large Load diff

540
vendor/github.com/matttproud/golang_protobuf_extensions/testdata/test.proto generated vendored
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@ -1,540 +0,0 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// A feature-rich test file for the protocol compiler and libraries.
syntax = "proto2";
package testdata;
enum FOO { FOO1 = 1; };
message GoEnum {
required FOO foo = 1;
}
message GoTestField {
required string Label = 1;
required string Type = 2;
}
message GoTest {
// An enum, for completeness.
enum KIND {
VOID = 0;
// Basic types
BOOL = 1;
BYTES = 2;
FINGERPRINT = 3;
FLOAT = 4;
INT = 5;
STRING = 6;
TIME = 7;
// Groupings
TUPLE = 8;
ARRAY = 9;
MAP = 10;
// Table types
TABLE = 11;
// Functions
FUNCTION = 12; // last tag
};
// Some typical parameters
required KIND Kind = 1;
optional string Table = 2;
optional int32 Param = 3;
// Required, repeated and optional foreign fields.
required GoTestField RequiredField = 4;
repeated GoTestField RepeatedField = 5;
optional GoTestField OptionalField = 6;
// Required fields of all basic types
required bool F_Bool_required = 10;
required int32 F_Int32_required = 11;
required int64 F_Int64_required = 12;
required fixed32 F_Fixed32_required = 13;
required fixed64 F_Fixed64_required = 14;
required uint32 F_Uint32_required = 15;
required uint64 F_Uint64_required = 16;
required float F_Float_required = 17;
required double F_Double_required = 18;
required string F_String_required = 19;
required bytes F_Bytes_required = 101;
required sint32 F_Sint32_required = 102;
required sint64 F_Sint64_required = 103;
// Repeated fields of all basic types
repeated bool F_Bool_repeated = 20;
repeated int32 F_Int32_repeated = 21;
repeated int64 F_Int64_repeated = 22;
repeated fixed32 F_Fixed32_repeated = 23;
repeated fixed64 F_Fixed64_repeated = 24;
repeated uint32 F_Uint32_repeated = 25;
repeated uint64 F_Uint64_repeated = 26;
repeated float F_Float_repeated = 27;
repeated double F_Double_repeated = 28;
repeated string F_String_repeated = 29;
repeated bytes F_Bytes_repeated = 201;
repeated sint32 F_Sint32_repeated = 202;
repeated sint64 F_Sint64_repeated = 203;
// Optional fields of all basic types
optional bool F_Bool_optional = 30;
optional int32 F_Int32_optional = 31;
optional int64 F_Int64_optional = 32;
optional fixed32 F_Fixed32_optional = 33;
optional fixed64 F_Fixed64_optional = 34;
optional uint32 F_Uint32_optional = 35;
optional uint64 F_Uint64_optional = 36;
optional float F_Float_optional = 37;
optional double F_Double_optional = 38;
optional string F_String_optional = 39;
optional bytes F_Bytes_optional = 301;
optional sint32 F_Sint32_optional = 302;
optional sint64 F_Sint64_optional = 303;
// Default-valued fields of all basic types
optional bool F_Bool_defaulted = 40 [default=true];
optional int32 F_Int32_defaulted = 41 [default=32];
optional int64 F_Int64_defaulted = 42 [default=64];
optional fixed32 F_Fixed32_defaulted = 43 [default=320];
optional fixed64 F_Fixed64_defaulted = 44 [default=640];
optional uint32 F_Uint32_defaulted = 45 [default=3200];
optional uint64 F_Uint64_defaulted = 46 [default=6400];
optional float F_Float_defaulted = 47 [default=314159.];
optional double F_Double_defaulted = 48 [default=271828.];
optional string F_String_defaulted = 49 [default="hello, \"world!\"\n"];
optional bytes F_Bytes_defaulted = 401 [default="Bignose"];
optional sint32 F_Sint32_defaulted = 402 [default = -32];
optional sint64 F_Sint64_defaulted = 403 [default = -64];
// Packed repeated fields (no string or bytes).
repeated bool F_Bool_repeated_packed = 50 [packed=true];
repeated int32 F_Int32_repeated_packed = 51 [packed=true];
repeated int64 F_Int64_repeated_packed = 52 [packed=true];
repeated fixed32 F_Fixed32_repeated_packed = 53 [packed=true];
repeated fixed64 F_Fixed64_repeated_packed = 54 [packed=true];
repeated uint32 F_Uint32_repeated_packed = 55 [packed=true];
repeated uint64 F_Uint64_repeated_packed = 56 [packed=true];
repeated float F_Float_repeated_packed = 57 [packed=true];
repeated double F_Double_repeated_packed = 58 [packed=true];
repeated sint32 F_Sint32_repeated_packed = 502 [packed=true];
repeated sint64 F_Sint64_repeated_packed = 503 [packed=true];
// Required, repeated, and optional groups.
required group RequiredGroup = 70 {
required string RequiredField = 71;
};
repeated group RepeatedGroup = 80 {
required string RequiredField = 81;
};
optional group OptionalGroup = 90 {
required string RequiredField = 91;
};
}
// For testing skipping of unrecognized fields.
// Numbers are all big, larger than tag numbers in GoTestField,
// the message used in the corresponding test.
message GoSkipTest {
required int32 skip_int32 = 11;
required fixed32 skip_fixed32 = 12;
required fixed64 skip_fixed64 = 13;
required string skip_string = 14;
required group SkipGroup = 15 {
required int32 group_int32 = 16;
required string group_string = 17;
}
}
// For testing packed/non-packed decoder switching.
// A serialized instance of one should be deserializable as the other.
message NonPackedTest {
repeated int32 a = 1;
}
message PackedTest {
repeated int32 b = 1 [packed=true];
}
message MaxTag {
// Maximum possible tag number.
optional string last_field = 536870911;
}
message OldMessage {
message Nested {
optional string name = 1;
}
optional Nested nested = 1;
optional int32 num = 2;
}
// NewMessage is wire compatible with OldMessage;
// imagine it as a future version.
message NewMessage {
message Nested {
optional string name = 1;
optional string food_group = 2;
}
optional Nested nested = 1;
// This is an int32 in OldMessage.
optional int64 num = 2;
}
// Smaller tests for ASCII formatting.
message InnerMessage {
required string host = 1;
optional int32 port = 2 [default=4000];
optional bool connected = 3;
}
message OtherMessage {
optional int64 key = 1;
optional bytes value = 2;
optional float weight = 3;
optional InnerMessage inner = 4;
extensions 100 to max;
}
message RequiredInnerMessage {
required InnerMessage leo_finally_won_an_oscar = 1;
}
message MyMessage {
required int32 count = 1;
optional string name = 2;
optional string quote = 3;
repeated string pet = 4;
optional InnerMessage inner = 5;
repeated OtherMessage others = 6;
optional RequiredInnerMessage we_must_go_deeper = 13;
repeated InnerMessage rep_inner = 12;
enum Color {
RED = 0;
GREEN = 1;
BLUE = 2;
};
optional Color bikeshed = 7;
optional group SomeGroup = 8 {
optional int32 group_field = 9;
}
// This field becomes [][]byte in the generated code.
repeated bytes rep_bytes = 10;
optional double bigfloat = 11;
extensions 100 to max;
}
message Ext {
extend MyMessage {
optional Ext more = 103;
optional string text = 104;
optional int32 number = 105;
}
optional string data = 1;
}
extend MyMessage {
repeated string greeting = 106;
}
message ComplexExtension {
optional int32 first = 1;
optional int32 second = 2;
repeated int32 third = 3;
}
extend OtherMessage {
optional ComplexExtension complex = 200;
repeated ComplexExtension r_complex = 201;
}
message DefaultsMessage {
enum DefaultsEnum {
ZERO = 0;
ONE = 1;
TWO = 2;
};
extensions 100 to max;
}
extend DefaultsMessage {
optional double no_default_double = 101;
optional float no_default_float = 102;
optional int32 no_default_int32 = 103;
optional int64 no_default_int64 = 104;
optional uint32 no_default_uint32 = 105;
optional uint64 no_default_uint64 = 106;
optional sint32 no_default_sint32 = 107;
optional sint64 no_default_sint64 = 108;
optional fixed32 no_default_fixed32 = 109;
optional fixed64 no_default_fixed64 = 110;
optional sfixed32 no_default_sfixed32 = 111;
optional sfixed64 no_default_sfixed64 = 112;
optional bool no_default_bool = 113;
optional string no_default_string = 114;
optional bytes no_default_bytes = 115;
optional DefaultsMessage.DefaultsEnum no_default_enum = 116;
optional double default_double = 201 [default = 3.1415];
optional float default_float = 202 [default = 3.14];
optional int32 default_int32 = 203 [default = 42];
optional int64 default_int64 = 204 [default = 43];
optional uint32 default_uint32 = 205 [default = 44];
optional uint64 default_uint64 = 206 [default = 45];
optional sint32 default_sint32 = 207 [default = 46];
optional sint64 default_sint64 = 208 [default = 47];
optional fixed32 default_fixed32 = 209 [default = 48];
optional fixed64 default_fixed64 = 210 [default = 49];
optional sfixed32 default_sfixed32 = 211 [default = 50];
optional sfixed64 default_sfixed64 = 212 [default = 51];
optional bool default_bool = 213 [default = true];
optional string default_string = 214 [default = "Hello, string"];
optional bytes default_bytes = 215 [default = "Hello, bytes"];
optional DefaultsMessage.DefaultsEnum default_enum = 216 [default = ONE];
}
message MyMessageSet {
option message_set_wire_format = true;
extensions 100 to max;
}
message Empty {
}
extend MyMessageSet {
optional Empty x201 = 201;
optional Empty x202 = 202;
optional Empty x203 = 203;
optional Empty x204 = 204;
optional Empty x205 = 205;
optional Empty x206 = 206;
optional Empty x207 = 207;
optional Empty x208 = 208;
optional Empty x209 = 209;
optional Empty x210 = 210;
optional Empty x211 = 211;
optional Empty x212 = 212;
optional Empty x213 = 213;
optional Empty x214 = 214;
optional Empty x215 = 215;
optional Empty x216 = 216;
optional Empty x217 = 217;
optional Empty x218 = 218;
optional Empty x219 = 219;
optional Empty x220 = 220;
optional Empty x221 = 221;
optional Empty x222 = 222;
optional Empty x223 = 223;
optional Empty x224 = 224;
optional Empty x225 = 225;
optional Empty x226 = 226;
optional Empty x227 = 227;
optional Empty x228 = 228;
optional Empty x229 = 229;
optional Empty x230 = 230;
optional Empty x231 = 231;
optional Empty x232 = 232;
optional Empty x233 = 233;
optional Empty x234 = 234;
optional Empty x235 = 235;
optional Empty x236 = 236;
optional Empty x237 = 237;
optional Empty x238 = 238;
optional Empty x239 = 239;
optional Empty x240 = 240;
optional Empty x241 = 241;
optional Empty x242 = 242;
optional Empty x243 = 243;
optional Empty x244 = 244;
optional Empty x245 = 245;
optional Empty x246 = 246;
optional Empty x247 = 247;
optional Empty x248 = 248;
optional Empty x249 = 249;
optional Empty x250 = 250;
}
message MessageList {
repeated group Message = 1 {
required string name = 2;
required int32 count = 3;
}
}
message Strings {
optional string string_field = 1;
optional bytes bytes_field = 2;
}
message Defaults {
enum Color {
RED = 0;
GREEN = 1;
BLUE = 2;
}
// Default-valued fields of all basic types.
// Same as GoTest, but copied here to make testing easier.
optional bool F_Bool = 1 [default=true];
optional int32 F_Int32 = 2 [default=32];
optional int64 F_Int64 = 3 [default=64];
optional fixed32 F_Fixed32 = 4 [default=320];
optional fixed64 F_Fixed64 = 5 [default=640];
optional uint32 F_Uint32 = 6 [default=3200];
optional uint64 F_Uint64 = 7 [default=6400];
optional float F_Float = 8 [default=314159.];
optional double F_Double = 9 [default=271828.];
optional string F_String = 10 [default="hello, \"world!\"\n"];
optional bytes F_Bytes = 11 [default="Bignose"];
optional sint32 F_Sint32 = 12 [default=-32];
optional sint64 F_Sint64 = 13 [default=-64];
optional Color F_Enum = 14 [default=GREEN];
// More fields with crazy defaults.
optional float F_Pinf = 15 [default=inf];
optional float F_Ninf = 16 [default=-inf];
optional float F_Nan = 17 [default=nan];
// Sub-message.
optional SubDefaults sub = 18;
// Redundant but explicit defaults.
optional string str_zero = 19 [default=""];
}
message SubDefaults {
optional int64 n = 1 [default=7];
}
message RepeatedEnum {
enum Color {
RED = 1;
}
repeated Color color = 1;
}
message MoreRepeated {
repeated bool bools = 1;
repeated bool bools_packed = 2 [packed=true];
repeated int32 ints = 3;
repeated int32 ints_packed = 4 [packed=true];
repeated int64 int64s_packed = 7 [packed=true];
repeated string strings = 5;
repeated fixed32 fixeds = 6;
}
// GroupOld and GroupNew have the same wire format.
// GroupNew has a new field inside a group.
message GroupOld {
optional group G = 101 {
optional int32 x = 2;
}
}
message GroupNew {
optional group G = 101 {
optional int32 x = 2;
optional int32 y = 3;
}
}
message FloatingPoint {
required double f = 1;
}
message MessageWithMap {
map<int32, string> name_mapping = 1;
map<sint64, FloatingPoint> msg_mapping = 2;
map<bool, bytes> byte_mapping = 3;
map<string, string> str_to_str = 4;
}
message Oneof {
oneof union {
bool F_Bool = 1;
int32 F_Int32 = 2;
int64 F_Int64 = 3;
fixed32 F_Fixed32 = 4;
fixed64 F_Fixed64 = 5;
uint32 F_Uint32 = 6;
uint64 F_Uint64 = 7;
float F_Float = 8;
double F_Double = 9;
string F_String = 10;
bytes F_Bytes = 11;
sint32 F_Sint32 = 12;
sint64 F_Sint64 = 13;
MyMessage.Color F_Enum = 14;
GoTestField F_Message = 15;
group F_Group = 16 {
optional int32 x = 17;
}
int32 F_Largest_Tag = 536870911;
}
oneof tormato {
int32 value = 100;
}
}
message Communique {
optional bool make_me_cry = 1;
// This is a oneof, called "union".
oneof union {
int32 number = 5;
string name = 6;
bytes data = 7;
double temp_c = 8;
MyMessage.Color col = 9;
Strings msg = 10;
}
}

4
vendor/github.com/prometheus/client_golang/.gitignore generated vendored
View file

@ -7,10 +7,6 @@
_obj
_test
# Examples
/examples/simple/simple
/examples/random/random
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out

5
vendor/github.com/prometheus/client_golang/.travis.yml generated vendored
View file

@ -2,9 +2,8 @@ sudo: false
language: go
go:
- 1.7.x
- 1.8.x
- 1.9.x
- 1.5.4
- 1.6.2
script:
- go test -short ./...

18
vendor/github.com/prometheus/client_golang/AUTHORS.md generated vendored Normal file
View file

@ -0,0 +1,18 @@
The Prometheus project was started by Matt T. Proud (emeritus) and
Julius Volz in 2012.
Maintainers of this repository:
* Björn Rabenstein <beorn@soundcloud.com>
The following individuals have contributed code to this repository
(listed in alphabetical order):
* Bernerd Schaefer <bj.schaefer@gmail.com>
* Björn Rabenstein <beorn@soundcloud.com>
* Daniel Bornkessel <daniel@soundcloud.com>
* Jeff Younker <jeff@drinktomi.com>
* Julius Volz <julius.volz@gmail.com>
* Matt T. Proud <matt.proud@gmail.com>
* Tobias Schmidt <ts@soundcloud.com>

6
vendor/github.com/prometheus/client_golang/CONTRIBUTING.md generated vendored
View file

@ -2,9 +2,9 @@
Prometheus uses GitHub to manage reviews of pull requests.
* If you have a trivial fix or improvement, go ahead and create a pull request,
addressing (with `@...`) the maintainer of this repository (see
[MAINTAINERS.md](MAINTAINERS.md)) in the description of the pull request.
* If you have a trivial fix or improvement, go ahead and create a pull
request, addressing (with `@...`) one or more of the maintainers
(see [AUTHORS.md](AUTHORS.md)) in the description of the pull request.
* If you plan to do something more involved, first discuss your ideas
on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers).

1
vendor/github.com/prometheus/client_golang/MAINTAINERS.md generated vendored
View file

@ -1 +0,0 @@
* Björn Rabenstein <beorn@soundcloud.com>

6
vendor/github.com/prometheus/client_golang/README.md generated vendored
View file

@ -1,15 +1,12 @@
# Prometheus Go client library
[![Build Status](https://travis-ci.org/prometheus/client_golang.svg?branch=master)](https://travis-ci.org/prometheus/client_golang)
[![Go Report Card](https://goreportcard.com/badge/github.com/prometheus/client_golang)](https://goreportcard.com/report/github.com/prometheus/client_golang)
This is the [Go](http://golang.org) client library for
[Prometheus](http://prometheus.io). It has two separate parts, one for
instrumenting application code, and one for creating clients that talk to the
Prometheus HTTP API.
__This library requires Go1.7 or later.__
## Instrumenting applications
[![code-coverage](http://gocover.io/_badge/github.com/prometheus/client_golang/prometheus)](http://gocover.io/github.com/prometheus/client_golang/prometheus) [![go-doc](https://godoc.org/github.com/prometheus/client_golang/prometheus?status.svg)](https://godoc.org/github.com/prometheus/client_golang/prometheus)
@ -32,8 +29,7 @@ The
[`api/prometheus` directory](https://github.com/prometheus/client_golang/tree/master/api/prometheus)
contains the client for the
[Prometheus HTTP API](http://prometheus.io/docs/querying/api/). It allows you
to write Go applications that query time series data from a Prometheus
server. It is still in alpha stage.
to write Go applications that query time series data from a Prometheus server.
## Where is `model`, `extraction`, and `text`?

131
vendor/github.com/prometheus/client_golang/api/client.go generated vendored
View file

@ -1,131 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
// Package api provides clients for the HTTP APIs.
package api
import (
"context"
"io/ioutil"
"net"
"net/http"
"net/url"
"path"
"strings"
"time"
)
// DefaultRoundTripper is used if no RoundTripper is set in Config.
var DefaultRoundTripper http.RoundTripper = &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
}
// Config defines configuration parameters for a new client.
type Config struct {
// The address of the Prometheus to connect to.
Address string
// RoundTripper is used by the Client to drive HTTP requests. If not
// provided, DefaultRoundTripper will be used.
RoundTripper http.RoundTripper
}
func (cfg *Config) roundTripper() http.RoundTripper {
if cfg.RoundTripper == nil {
return DefaultRoundTripper
}
return cfg.RoundTripper
}
// Client is the interface for an API client.
type Client interface {
URL(ep string, args map[string]string) *url.URL
Do(context.Context, *http.Request) (*http.Response, []byte, error)
}
// NewClient returns a new Client.
//
// It is safe to use the returned Client from multiple goroutines.
func NewClient(cfg Config) (Client, error) {
u, err := url.Parse(cfg.Address)
if err != nil {
return nil, err
}
u.Path = strings.TrimRight(u.Path, "/")
return &httpClient{
endpoint: u,
client: http.Client{Transport: cfg.roundTripper()},
}, nil
}
type httpClient struct {
endpoint *url.URL
client http.Client
}
func (c *httpClient) URL(ep string, args map[string]string) *url.URL {
p := path.Join(c.endpoint.Path, ep)
for arg, val := range args {
arg = ":" + arg
p = strings.Replace(p, arg, val, -1)
}
u := *c.endpoint
u.Path = p
return &u
}
func (c *httpClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
if ctx != nil {
req = req.WithContext(ctx)
}
resp, err := c.client.Do(req)
defer func() {
if resp != nil {
resp.Body.Close()
}
}()
if err != nil {
return nil, nil, err
}
var body []byte
done := make(chan struct{})
go func() {
body, err = ioutil.ReadAll(resp.Body)
close(done)
}()
select {
case <-ctx.Done():
err = resp.Body.Close()
<-done
if err == nil {
err = ctx.Err()
}
case <-done:
}
return resp, body, err
}

115
vendor/github.com/prometheus/client_golang/api/client_test.go generated vendored
View file

@ -1,115 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
package api
import (
"net/http"
"net/url"
"testing"
)
func TestConfig(t *testing.T) {
c := Config{}
if c.roundTripper() != DefaultRoundTripper {
t.Fatalf("expected default roundtripper for nil RoundTripper field")
}
}
func TestClientURL(t *testing.T) {
tests := []struct {
address string
endpoint string
args map[string]string
expected string
}{
{
address: "http://localhost:9090",
endpoint: "/test",
expected: "http://localhost:9090/test",
},
{
address: "http://localhost",
endpoint: "/test",
expected: "http://localhost/test",
},
{
address: "http://localhost:9090",
endpoint: "test",
expected: "http://localhost:9090/test",
},
{
address: "http://localhost:9090/prefix",
endpoint: "/test",
expected: "http://localhost:9090/prefix/test",
},
{
address: "https://localhost:9090/",
endpoint: "/test/",
expected: "https://localhost:9090/test",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param",
args: map[string]string{
"param": "content",
},
expected: "http://localhost:9090/test/content",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param/more/:param",
args: map[string]string{
"param": "content",
},
expected: "http://localhost:9090/test/content/more/content",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param/more/:foo",
args: map[string]string{
"param": "content",
"foo": "bar",
},
expected: "http://localhost:9090/test/content/more/bar",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param",
args: map[string]string{
"nonexistant": "content",
},
expected: "http://localhost:9090/test/:param",
},
}
for _, test := range tests {
ep, err := url.Parse(test.address)
if err != nil {
t.Fatal(err)
}
hclient := &httpClient{
endpoint: ep,
client: http.Client{Transport: DefaultRoundTripper},
}
u := hclient.URL(test.endpoint, test.args)
if u.String() != test.expected {
t.Errorf("unexpected result: got %s, want %s", u, test.expected)
continue
}
}
}

310
vendor/github.com/prometheus/client_golang/api/prometheus/v1/api.go → vendor/github.com/prometheus/client_golang/api/prometheus/api.go generated vendored
View file

@ -1,4 +1,4 @@
// Copyright 2017 The Prometheus Authors
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
@ -11,40 +11,41 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
// Package v1 provides bindings to the Prometheus HTTP API v1:
// Package prometheus provides bindings to the Prometheus HTTP API:
// http://prometheus.io/docs/querying/api/
package v1
package prometheus
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"time"
"github.com/prometheus/client_golang/api"
"github.com/prometheus/common/model"
"golang.org/x/net/context"
"golang.org/x/net/context/ctxhttp"
)
const (
statusAPIError = 422
apiPrefix = "/api/v1"
epQuery = apiPrefix + "/query"
epQueryRange = apiPrefix + "/query_range"
epLabelValues = apiPrefix + "/label/:name/values"
epSeries = apiPrefix + "/series"
epQuery = "/query"
epQueryRange = "/query_range"
epLabelValues = "/label/:name/values"
epSeries = "/series"
)
// ErrorType models the different API error types.
type ErrorType string
// Possible values for ErrorType.
const (
// The different API error types.
ErrBadData ErrorType = "bad_data"
ErrTimeout = "timeout"
ErrCanceled = "canceled"
@ -62,6 +63,166 @@ func (e *Error) Error() string {
return fmt.Sprintf("%s: %s", e.Type, e.Msg)
}
// CancelableTransport is like net.Transport but provides
// per-request cancelation functionality.
type CancelableTransport interface {
http.RoundTripper
CancelRequest(req *http.Request)
}
var DefaultTransport CancelableTransport = &http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
}
// Config defines configuration parameters for a new client.
type Config struct {
// The address of the Prometheus to connect to.
Address string
// Transport is used by the Client to drive HTTP requests. If not
// provided, DefaultTransport will be used.
Transport CancelableTransport
}
func (cfg *Config) transport() CancelableTransport {
if cfg.Transport == nil {
return DefaultTransport
}
return cfg.Transport
}
type Client interface {
url(ep string, args map[string]string) *url.URL
do(context.Context, *http.Request) (*http.Response, []byte, error)
}
// New returns a new Client.
//
// It is safe to use the returned Client from multiple goroutines.
func New(cfg Config) (Client, error) {
u, err := url.Parse(cfg.Address)
if err != nil {
return nil, err
}
u.Path = strings.TrimRight(u.Path, "/") + apiPrefix
return &httpClient{
endpoint: u,
transport: cfg.transport(),
}, nil
}
type httpClient struct {
endpoint *url.URL
transport CancelableTransport
}
func (c *httpClient) url(ep string, args map[string]string) *url.URL {
p := path.Join(c.endpoint.Path, ep)
for arg, val := range args {
arg = ":" + arg
p = strings.Replace(p, arg, val, -1)
}
u := *c.endpoint
u.Path = p
return &u
}
func (c *httpClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
resp, err := ctxhttp.Do(ctx, &http.Client{Transport: c.transport}, req)
defer func() {
if resp != nil {
resp.Body.Close()
}
}()
if err != nil {
return nil, nil, err
}
var body []byte
done := make(chan struct{})
go func() {
body, err = ioutil.ReadAll(resp.Body)
close(done)
}()
select {
case <-ctx.Done():
err = resp.Body.Close()
<-done
if err == nil {
err = ctx.Err()
}
case <-done:
}
return resp, body, err
}
// apiClient wraps a regular client and processes successful API responses.
// Successful also includes responses that errored at the API level.
type apiClient struct {
Client
}
type apiResponse struct {
Status string `json:"status"`
Data json.RawMessage `json:"data"`
ErrorType ErrorType `json:"errorType"`
Error string `json:"error"`
}
func (c apiClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
resp, body, err := c.Client.do(ctx, req)
if err != nil {
return resp, body, err
}
code := resp.StatusCode
if code/100 != 2 && code != statusAPIError {
return resp, body, &Error{
Type: ErrBadResponse,
Msg: fmt.Sprintf("bad response code %d", resp.StatusCode),
}
}
var result apiResponse
if err = json.Unmarshal(body, &result); err != nil {
return resp, body, &Error{
Type: ErrBadResponse,
Msg: err.Error(),
}
}
if (code == statusAPIError) != (result.Status == "error") {
err = &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
}
}
if code == statusAPIError && result.Status == "error" {
err = &Error{
Type: result.ErrorType,
Msg: result.Error,
}
}
return resp, []byte(result.Data), err
}
// Range represents a sliced time range.
type Range struct {
// The boundaries of the time range.
@ -70,16 +231,6 @@ type Range struct {
Step time.Duration
}
// API provides bindings for Prometheus's v1 API.
type API interface {
// Query performs a query for the given time.
Query(ctx context.Context, query string, ts time.Time) (model.Value, error)
// QueryRange performs a query for the given range.
QueryRange(ctx context.Context, query string, r Range) (model.Value, error)
// LabelValues performs a query for the values of the given label.
LabelValues(ctx context.Context, label string) (model.LabelValues, error)
}
// queryResult contains result data for a query.
type queryResult struct {
Type model.ValueType `json:"resultType"`
@ -122,19 +273,27 @@ func (qr *queryResult) UnmarshalJSON(b []byte) error {
return err
}
// NewAPI returns a new API for the client.
// QueryAPI provides bindings the Prometheus's query API.
type QueryAPI interface {
// Query performs a query for the given time.
Query(ctx context.Context, query string, ts time.Time) (model.Value, error)
// Query performs a query for the given range.
QueryRange(ctx context.Context, query string, r Range) (model.Value, error)
}
// NewQueryAPI returns a new QueryAPI for the client.
//
// It is safe to use the returned API from multiple goroutines.
func NewAPI(c api.Client) API {
return &httpAPI{client: apiClient{c}}
// It is safe to use the returned QueryAPI from multiple goroutines.
func NewQueryAPI(c Client) QueryAPI {
return &httpQueryAPI{client: apiClient{c}}
}
type httpAPI struct {
client api.Client
type httpQueryAPI struct {
client Client
}
func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) {
u := h.client.URL(epQuery, nil)
func (h *httpQueryAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) {
u := h.client.url(epQuery, nil)
q := u.Query()
q.Set("query", query)
@ -142,12 +301,9 @@ func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.
u.RawQuery = q.Encode()
req, err := http.NewRequest("GET", u.String(), nil)
if err != nil {
return nil, err
}
req, _ := http.NewRequest("GET", u.String(), nil)
_, body, err := h.client.Do(ctx, req)
_, body, err := h.client.do(ctx, req)
if err != nil {
return nil, err
}
@ -158,8 +314,8 @@ func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.
return model.Value(qres.v), err
}
func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.Value, error) {
u := h.client.URL(epQueryRange, nil)
func (h *httpQueryAPI) QueryRange(ctx context.Context, query string, r Range) (model.Value, error) {
u := h.client.url(epQueryRange, nil)
q := u.Query()
var (
@ -175,12 +331,9 @@ func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.
u.RawQuery = q.Encode()
req, err := http.NewRequest("GET", u.String(), nil)
if err != nil {
return nil, err
}
req, _ := http.NewRequest("GET", u.String(), nil)
_, body, err := h.client.Do(ctx, req)
_, body, err := h.client.do(ctx, req)
if err != nil {
return nil, err
}
@ -190,72 +343,3 @@ func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.
return model.Value(qres.v), err
}
func (h *httpAPI) LabelValues(ctx context.Context, label string) (model.LabelValues, error) {
u := h.client.URL(epLabelValues, map[string]string{"name": label})
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
if err != nil {
return nil, err
}
_, body, err := h.client.Do(ctx, req)
if err != nil {
return nil, err
}
var labelValues model.LabelValues
err = json.Unmarshal(body, &labelValues)
return labelValues, err
}
// apiClient wraps a regular client and processes successful API responses.
// Successful also includes responses that errored at the API level.
type apiClient struct {
api.Client
}
type apiResponse struct {
Status string `json:"status"`
Data json.RawMessage `json:"data"`
ErrorType ErrorType `json:"errorType"`
Error string `json:"error"`
}
func (c apiClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
resp, body, err := c.Client.Do(ctx, req)
if err != nil {
return resp, body, err
}
code := resp.StatusCode
if code/100 != 2 && code != statusAPIError {
return resp, body, &Error{
Type: ErrBadResponse,
Msg: fmt.Sprintf("bad response code %d", resp.StatusCode),
}
}
var result apiResponse
if err = json.Unmarshal(body, &result); err != nil {
return resp, body, &Error{
Type: ErrBadResponse,
Msg: err.Error(),
}
}
if (code == statusAPIError) != (result.Status == "error") {
err = &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
}
}
if code == statusAPIError && result.Status == "error" {
err = &Error{
Type: result.ErrorType,
Msg: result.Error,
}
}
return resp, []byte(result.Data), err
}

410
vendor/github.com/prometheus/client_golang/api/prometheus/v1/api_test.go → vendor/github.com/prometheus/client_golang/api/prometheus/api_test.go generated vendored
View file

@ -1,4 +1,4 @@
// Copyright 2017 The Prometheus Authors
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
@ -11,203 +11,118 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
package v1
package prometheus
import (
"context"
"encoding/json"
"fmt"
"net/http"
"net/url"
"reflect"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
"golang.org/x/net/context"
)
type apiTest struct {
do func() (interface{}, error)
inErr error
inRes interface{}
reqPath string
reqParam url.Values
reqMethod string
res interface{}
err error
func TestConfig(t *testing.T) {
c := Config{}
if c.transport() != DefaultTransport {
t.Fatalf("expected default transport for nil Transport field")
}
}
type apiTestClient struct {
*testing.T
curTest apiTest
}
func (c *apiTestClient) URL(ep string, args map[string]string) *url.URL {
path := ep
for k, v := range args {
path = strings.Replace(path, ":"+k, v, -1)
}
u := &url.URL{
Host: "test:9090",
Path: path,
}
return u
}
func (c *apiTestClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
test := c.curTest
if req.URL.Path != test.reqPath {
c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path)
}
if req.Method != test.reqMethod {
c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method)
}
b, err := json.Marshal(test.inRes)
if err != nil {
c.Fatal(err)
}
resp := &http.Response{}
if test.inErr != nil {
resp.StatusCode = statusAPIError
} else {
resp.StatusCode = http.StatusOK
}
return resp, b, test.inErr
}
func TestAPIs(t *testing.T) {
testTime := time.Now()
client := &apiTestClient{T: t}
queryAPI := &httpAPI{
client: client,
}
doQuery := func(q string, ts time.Time) func() (interface{}, error) {
return func() (interface{}, error) {
return queryAPI.Query(context.Background(), q, ts)
}
}
doQueryRange := func(q string, rng Range) func() (interface{}, error) {
return func() (interface{}, error) {
return queryAPI.QueryRange(context.Background(), q, rng)
}
}
doLabelValues := func(label string) func() (interface{}, error) {
return func() (interface{}, error) {
return queryAPI.LabelValues(context.Background(), label)
}
}
queryTests := []apiTest{
func TestClientURL(t *testing.T) {
tests := []struct {
address string
endpoint string
args map[string]string
expected string
}{
{
do: doQuery("2", testTime),
inRes: &queryResult{
Type: model.ValScalar,
Result: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
res: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
address: "http://localhost:9090",
endpoint: "/test",
expected: "http://localhost:9090/test",
},
{
do: doQuery("2", testTime),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
address: "http://localhost",
endpoint: "/test",
expected: "http://localhost/test",
},
err: fmt.Errorf("some error"),
},
{
do: doQueryRange("2", Range{
Start: testTime.Add(-time.Minute),
End: testTime,
Step: time.Minute,
}),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query_range",
reqParam: url.Values{
"query": []string{"2"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
"step": []string{time.Minute.String()},
address: "http://localhost:9090",
endpoint: "test",
expected: "http://localhost:9090/test",
},
err: fmt.Errorf("some error"),
},
{
do: doLabelValues("mylabel"),
inRes: []string{"val1", "val2"},
reqMethod: "GET",
reqPath: "/api/v1/label/mylabel/values",
res: model.LabelValues{"val1", "val2"},
address: "http://localhost:9090/prefix",
endpoint: "/test",
expected: "http://localhost:9090/prefix/test",
},
{
do: doLabelValues("mylabel"),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/label/mylabel/values",
err: fmt.Errorf("some error"),
address: "https://localhost:9090/",
endpoint: "/test/",
expected: "https://localhost:9090/test",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param",
args: map[string]string{
"param": "content",
},
expected: "http://localhost:9090/test/content",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param/more/:param",
args: map[string]string{
"param": "content",
},
expected: "http://localhost:9090/test/content/more/content",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param/more/:foo",
args: map[string]string{
"param": "content",
"foo": "bar",
},
expected: "http://localhost:9090/test/content/more/bar",
},
{
address: "http://localhost:9090",
endpoint: "/test/:param",
args: map[string]string{
"nonexistant": "content",
},
expected: "http://localhost:9090/test/:param",
},
}
var tests []apiTest
tests = append(tests, queryTests...)
for _, test := range tests {
client.curTest = test
res, err := test.do()
if test.err != nil {
if err == nil {
t.Errorf("expected error %q but got none", test.err)
continue
}
if err.Error() != test.err.Error() {
t.Errorf("unexpected error: want %s, got %s", test.err, err)
}
continue
}
ep, err := url.Parse(test.address)
if err != nil {
t.Errorf("unexpected error: %s", err)
t.Fatal(err)
}
hclient := &httpClient{
endpoint: ep,
transport: DefaultTransport,
}
u := hclient.url(test.endpoint, test.args)
if u.String() != test.expected {
t.Errorf("unexpected result: got %s, want %s", u, test.expected)
continue
}
if !reflect.DeepEqual(res, test.res) {
t.Errorf("unexpected result: want %v, got %v", test.res, res)
// The apiClient must return exactly the same result as the httpClient.
aclient := &apiClient{hclient}
u = aclient.url(test.endpoint, test.args)
if u.String() != test.expected {
t.Errorf("unexpected result: got %s, want %s", u, test.expected)
}
}
}
@ -226,11 +141,11 @@ type apiClientTest struct {
err *Error
}
func (c *testClient) URL(ep string, args map[string]string) *url.URL {
func (c *testClient) url(ep string, args map[string]string) *url.URL {
return nil
}
func (c *testClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
func (c *testClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
if ctx == nil {
c.Fatalf("context was not passed down")
}
@ -356,7 +271,7 @@ func TestAPIClientDo(t *testing.T) {
tc.ch <- test
_, body, err := client.Do(context.Background(), tc.req)
_, body, err := client.do(context.Background(), tc.req)
if test.err != nil {
if err == nil {
@ -379,3 +294,160 @@ func TestAPIClientDo(t *testing.T) {
}
}
}
type apiTestClient struct {
*testing.T
curTest apiTest
}
type apiTest struct {
do func() (interface{}, error)
inErr error
inRes interface{}
reqPath string
reqParam url.Values
reqMethod string
res interface{}
err error
}
func (c *apiTestClient) url(ep string, args map[string]string) *url.URL {
u := &url.URL{
Host: "test:9090",
Path: apiPrefix + ep,
}
return u
}
func (c *apiTestClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
test := c.curTest
if req.URL.Path != test.reqPath {
c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path)
}
if req.Method != test.reqMethod {
c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method)
}
b, err := json.Marshal(test.inRes)
if err != nil {
c.Fatal(err)
}
resp := &http.Response{}
if test.inErr != nil {
resp.StatusCode = statusAPIError
} else {
resp.StatusCode = http.StatusOK
}
return resp, b, test.inErr
}
func TestAPIs(t *testing.T) {
testTime := time.Now()
client := &apiTestClient{T: t}
queryApi := &httpQueryAPI{
client: client,
}
doQuery := func(q string, ts time.Time) func() (interface{}, error) {
return func() (interface{}, error) {
return queryApi.Query(context.Background(), q, ts)
}
}
doQueryRange := func(q string, rng Range) func() (interface{}, error) {
return func() (interface{}, error) {
return queryApi.QueryRange(context.Background(), q, rng)
}
}
queryTests := []apiTest{
{
do: doQuery("2", testTime),
inRes: &queryResult{
Type: model.ValScalar,
Result: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
res: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
{
do: doQuery("2", testTime),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
err: fmt.Errorf("some error"),
},
{
do: doQueryRange("2", Range{
Start: testTime.Add(-time.Minute),
End: testTime,
Step: time.Minute,
}),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query_range",
reqParam: url.Values{
"query": []string{"2"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
"step": []string{time.Minute.String()},
},
err: fmt.Errorf("some error"),
},
}
var tests []apiTest
tests = append(tests, queryTests...)
for _, test := range tests {
client.curTest = test
res, err := test.do()
if test.err != nil {
if err == nil {
t.Errorf("expected error %q but got none", test.err)
continue
}
if err.Error() != test.err.Error() {
t.Errorf("unexpected error: want %s, got %s", test.err, err)
}
continue
}
if err != nil {
t.Errorf("unexpected error: %s", err)
continue
}
if !reflect.DeepEqual(res, test.res) {
t.Errorf("unexpected result: want %v, got %v", test.res, res)
}
}
}

20
vendor/github.com/prometheus/client_golang/examples/random/Dockerfile generated vendored
View file

@ -1,20 +0,0 @@
# This Dockerfile builds an image for a client_golang example.
#
# Use as (from the root for the client_golang repository):
# docker build -f examples/$name/Dockerfile -t prometheus/golang-example-$name .
# Builder image, where we build the example.
FROM golang:1.9.0 AS builder
WORKDIR /go/src/github.com/prometheus/client_golang
COPY . .
WORKDIR /go/src/github.com/prometheus/client_golang/prometheus
RUN go get -d
WORKDIR /go/src/github.com/prometheus/client_golang/examples/random
RUN CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w'
# Final image.
FROM scratch
LABEL maintainer "The Prometheus Authors <prometheus-developers@googlegroups.com>"
COPY --from=builder /go/src/github.com/prometheus/client_golang/examples/random .
EXPOSE 8080
ENTRYPOINT ["/random"]

19
vendor/github.com/prometheus/client_golang/examples/random/main.go generated vendored
View file

@ -18,21 +18,19 @@ package main
import (
"flag"
"log"
"math"
"math/rand"
"net/http"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
var (
addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
uniformDomain = flag.Float64("uniform.domain", 0.0002, "The domain for the uniform distribution.")
normDomain = flag.Float64("normal.domain", 0.0002, "The domain for the normal distribution.")
normMean = flag.Float64("normal.mean", 0.00001, "The mean for the normal distribution.")
uniformDomain = flag.Float64("uniform.domain", 200, "The domain for the uniform distribution.")
normDomain = flag.Float64("normal.domain", 200, "The domain for the normal distribution.")
normMean = flag.Float64("normal.mean", 10, "The mean for the normal distribution.")
oscillationPeriod = flag.Duration("oscillation-period", 10*time.Minute, "The duration of the rate oscillation period.")
)
@ -42,9 +40,8 @@ var (
// differentiated via a "service" label.
rpcDurations = prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "rpc_durations_seconds",
Name: "rpc_durations_microseconds",
Help: "RPC latency distributions.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"service"},
)
@ -53,7 +50,7 @@ var (
// normal distribution, with 20 buckets centered on the mean, each
// half-sigma wide.
rpcDurationsHistogram = prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "rpc_durations_histogram_seconds",
Name: "rpc_durations_histogram_microseconds",
Help: "RPC latency distributions.",
Buckets: prometheus.LinearBuckets(*normMean-5**normDomain, .5**normDomain, 20),
})
@ -94,13 +91,13 @@ func main() {
go func() {
for {
v := rand.ExpFloat64() / 1e6
v := rand.ExpFloat64()
rpcDurations.WithLabelValues("exponential").Observe(v)
time.Sleep(time.Duration(50*oscillationFactor()) * time.Millisecond)
}
}()
// Expose the registered metrics via HTTP.
http.Handle("/metrics", promhttp.Handler())
log.Fatal(http.ListenAndServe(*addr, nil))
http.Handle("/metrics", prometheus.Handler())
http.ListenAndServe(*addr, nil)
}

20
vendor/github.com/prometheus/client_golang/examples/simple/Dockerfile generated vendored
View file

@ -1,20 +0,0 @@
# This Dockerfile builds an image for a client_golang example.
#
# Use as (from the root for the client_golang repository):
# docker build -f examples/$name/Dockerfile -t prometheus/golang-example-$name .
# Builder image, where we build the example.
FROM golang:1.9.0 AS builder
WORKDIR /go/src/github.com/prometheus/client_golang
COPY . .
WORKDIR /go/src/github.com/prometheus/client_golang/prometheus
RUN go get -d
WORKDIR /go/src/github.com/prometheus/client_golang/examples/simple
RUN CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w'
# Final image.
FROM scratch
LABEL maintainer "The Prometheus Authors <prometheus-developers@googlegroups.com>"
COPY --from=builder /go/src/github.com/prometheus/client_golang/examples/simple .
EXPOSE 8080
ENTRYPOINT ["/simple"]

7
vendor/github.com/prometheus/client_golang/examples/simple/main.go generated vendored
View file

@ -16,16 +16,15 @@ package main
import (
"flag"
"log"
"net/http"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/client_golang/prometheus"
)
var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
func main() {
flag.Parse()
http.Handle("/metrics", promhttp.Handler())
log.Fatal(http.ListenAndServe(*addr, nil))
http.Handle("/metrics", prometheus.Handler())
http.ListenAndServe(*addr, nil)
}

2
vendor/github.com/prometheus/client_golang/prometheus/benchmark_test.go generated vendored
View file

@ -131,7 +131,6 @@ func BenchmarkSummaryWithLabelValues(b *testing.B) {
SummaryOpts{
Name: "benchmark_summary",
Help: "A summary to benchmark it.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"one", "two", "three"},
)
@ -146,7 +145,6 @@ func BenchmarkSummaryNoLabels(b *testing.B) {
m := NewSummary(SummaryOpts{
Name: "benchmark_summary",
Help: "A summary to benchmark it.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
)
b.ReportAllocs()

71
vendor/github.com/prometheus/client_golang/prometheus/counter.go generated vendored
View file

@ -30,8 +30,16 @@ type Counter interface {
Metric
Collector
// Inc increments the counter by 1. Use Add to increment it by arbitrary
// non-negative values.
// Set is used to set the Counter to an arbitrary value. It is only used
// if you have to transfer a value from an external counter into this
// Prometheus metric. Do not use it for regular handling of a
// Prometheus counter (as it can be used to break the contract of
// monotonically increasing values).
//
// Deprecated: Use NewConstMetric to create a counter for an external
// value. A Counter should never be set.
Set(float64)
// Inc increments the counter by 1.
Inc()
// Add adds the given value to the counter. It panics if the value is <
// 0.
@ -70,12 +78,16 @@ func (c *counter) Add(v float64) {
// if you want to count the same thing partitioned by various dimensions
// (e.g. number of HTTP requests, partitioned by response code and
// method). Create instances with NewCounterVec.
//
// CounterVec embeds MetricVec. See there for a full list of methods with
// detailed documentation.
type CounterVec struct {
*metricVec
*MetricVec
}
// NewCounterVec creates a new CounterVec based on the provided CounterOpts and
// partitioned by the given label names.
// partitioned by the given label names. At least one label name must be
// provided.
func NewCounterVec(opts CounterOpts, labelNames []string) *CounterVec {
desc := NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
@ -84,7 +96,7 @@ func NewCounterVec(opts CounterOpts, labelNames []string) *CounterVec {
opts.ConstLabels,
)
return &CounterVec{
metricVec: newMetricVec(desc, func(lvs ...string) Metric {
MetricVec: newMetricVec(desc, func(lvs ...string) Metric {
result := &counter{value: value{
desc: desc,
valType: CounterValue,
@ -96,51 +108,22 @@ func NewCounterVec(opts CounterOpts, labelNames []string) *CounterVec {
}
}
// GetMetricWithLabelValues returns the Counter for the given slice of label
// values (same order as the VariableLabels in Desc). If that combination of
// label values is accessed for the first time, a new Counter is created.
//
// It is possible to call this method without using the returned Counter to only
// create the new Counter but leave it at its starting value 0. See also the
// SummaryVec example.
//
// Keeping the Counter for later use is possible (and should be considered if
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
// Delete can be used to delete the Counter from the CounterVec. In that case,
// the Counter will still exist, but it will not be exported anymore, even if a
// Counter with the same label values is created later.
//
// An error is returned if the number of label values is not the same as the
// number of VariableLabels in Desc.
//
// Note that for more than one label value, this method is prone to mistakes
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
// an alternative to avoid that type of mistake. For higher label numbers, the
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// See also the GaugeVec example.
// GetMetricWithLabelValues replaces the method of the same name in
// MetricVec. The difference is that this method returns a Counter and not a
// Metric so that no type conversion is required.
func (m *CounterVec) GetMetricWithLabelValues(lvs ...string) (Counter, error) {
metric, err := m.metricVec.getMetricWithLabelValues(lvs...)
metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...)
if metric != nil {
return metric.(Counter), err
}
return nil, err
}
// GetMetricWith returns the Counter for the given Labels map (the label names
// must match those of the VariableLabels in Desc). If that label map is
// accessed for the first time, a new Counter is created. Implications of
// creating a Counter without using it and keeping the Counter for later use are
// the same as for GetMetricWithLabelValues.
//
// An error is returned if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc.
//
// This method is used for the same purpose as
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
// methods.
// GetMetricWith replaces the method of the same name in MetricVec. The
// difference is that this method returns a Counter and not a Metric so that no
// type conversion is required.
func (m *CounterVec) GetMetricWith(labels Labels) (Counter, error) {
metric, err := m.metricVec.getMetricWith(labels)
metric, err := m.MetricVec.GetMetricWith(labels)
if metric != nil {
return metric.(Counter), err
}
@ -152,14 +135,14 @@ func (m *CounterVec) GetMetricWith(labels Labels) (Counter, error) {
// error, WithLabelValues allows shortcuts like
// myVec.WithLabelValues("404", "GET").Add(42)
func (m *CounterVec) WithLabelValues(lvs ...string) Counter {
return m.metricVec.withLabelValues(lvs...).(Counter)
return m.MetricVec.WithLabelValues(lvs...).(Counter)
}
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
// returned an error. By not returning an error, With allows shortcuts like
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
func (m *CounterVec) With(labels Labels) Counter {
return m.metricVec.with(labels).(Counter)
return m.MetricVec.With(labels).(Counter)
}
// CounterFunc is a Counter whose value is determined at collect time by calling a

56
vendor/github.com/prometheus/client_golang/prometheus/counter_test.go generated vendored
View file

@ -14,7 +14,6 @@
package prometheus
import (
"fmt"
"math"
"testing"
@ -57,58 +56,3 @@ func decreaseCounter(c *counter) (err error) {
c.Add(-1)
return nil
}
func TestCounterVecGetMetricWithInvalidLabelValues(t *testing.T) {
testCases := []struct {
desc string
labels Labels
}{
{
desc: "non utf8 label value",
labels: Labels{"a": "\xFF"},
},
{
desc: "not enough label values",
labels: Labels{},
},
{
desc: "too many label values",
labels: Labels{"a": "1", "b": "2"},
},
}
for _, test := range testCases {
counterVec := NewCounterVec(CounterOpts{
Name: "test",
}, []string{"a"})
labelValues := make([]string, len(test.labels))
for _, val := range test.labels {
labelValues = append(labelValues, val)
}
expectPanic(t, func() {
counterVec.WithLabelValues(labelValues...)
}, fmt.Sprintf("WithLabelValues: expected panic because: %s", test.desc))
expectPanic(t, func() {
counterVec.With(test.labels)
}, fmt.Sprintf("WithLabelValues: expected panic because: %s", test.desc))
if _, err := counterVec.GetMetricWithLabelValues(labelValues...); err == nil {
t.Errorf("GetMetricWithLabelValues: expected error because: %s", test.desc)
}
if _, err := counterVec.GetMetricWith(test.labels); err == nil {
t.Errorf("GetMetricWith: expected error because: %s", test.desc)
}
}
}
func expectPanic(t *testing.T, op func(), errorMsg string) {
defer func() {
if err := recover(); err == nil {
t.Error(errorMsg)
}
}()
op()
}

36
vendor/github.com/prometheus/client_golang/prometheus/desc.go generated vendored
View file

@ -16,15 +16,33 @@ package prometheus
import (
"errors"
"fmt"
"regexp"
"sort"
"strings"
"github.com/golang/protobuf/proto"
"github.com/prometheus/common/model"
dto "github.com/prometheus/client_model/go"
)
var (
metricNameRE = regexp.MustCompile(`^[a-zA-Z_][a-zA-Z0-9_:]*$`)
labelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
)
// reservedLabelPrefix is a prefix which is not legal in user-supplied
// label names.
const reservedLabelPrefix = "__"
// Labels represents a collection of label name -> value mappings. This type is
// commonly used with the With(Labels) and GetMetricWith(Labels) methods of
// metric vector Collectors, e.g.:
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
//
// The other use-case is the specification of constant label pairs in Opts or to
// create a Desc.
type Labels map[string]string
// Desc is the descriptor used by every Prometheus Metric. It is essentially
// the immutable meta-data of a Metric. The normal Metric implementations
// included in this package manage their Desc under the hood. Users only have to
@ -60,7 +78,7 @@ type Desc struct {
// Help string. Each Desc with the same fqName must have the same
// dimHash.
dimHash uint64
// err is an error that occurred during construction. It is reported on
// err is an error that occured during construction. It is reported on
// registration time.
err error
}
@ -85,7 +103,7 @@ func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) *
d.err = errors.New("empty help string")
return d
}
if !model.IsValidMetricName(model.LabelValue(fqName)) {
if !metricNameRE.MatchString(fqName) {
d.err = fmt.Errorf("%q is not a valid metric name", fqName)
return d
}
@ -109,12 +127,6 @@ func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) *
for _, labelName := range labelNames {
labelValues = append(labelValues, constLabels[labelName])
}
// Validate the const label values. They can't have a wrong cardinality, so
// use in len(labelValues) as expectedNumberOfValues.
if err := validateLabelValues(labelValues, len(labelValues)); err != nil {
d.err = err
return d
}
// Now add the variable label names, but prefix them with something that
// cannot be in a regular label name. That prevents matching the label
// dimension with a different mix between preset and variable labels.
@ -130,7 +142,6 @@ func NewDesc(fqName, help string, variableLabels []string, constLabels Labels) *
d.err = errors.New("duplicate label names")
return d
}
vh := hashNew()
for _, val := range labelValues {
vh = hashAdd(vh, val)
@ -187,3 +198,8 @@ func (d *Desc) String() string {
d.variableLabels,
)
}
func checkLabelName(l string) bool {
return labelNameRE.MatchString(l) &&
!strings.HasPrefix(l, reservedLabelPrefix)
}

17
vendor/github.com/prometheus/client_golang/prometheus/desc_test.go generated vendored
View file

@ -1,17 +0,0 @@
package prometheus
import (
"testing"
)
func TestNewDescInvalidLabelValues(t *testing.T) {
desc := NewDesc(
"sample_label",
"sample label",
nil,
Labels{"a": "\xFF"},
)
if desc.err == nil {
t.Errorf("NewDesc: expected error because: %s", desc.err)
}
}

65
vendor/github.com/prometheus/client_golang/prometheus/doc.go generated vendored
View file

@ -17,7 +17,7 @@
// Pushgateway (package push).
//
// All exported functions and methods are safe to be used concurrently unless
// specified otherwise.
//specified otherwise.
//
// A Basic Example
//
@ -26,7 +26,6 @@
// package main
//
// import (
// "log"
// "net/http"
//
// "github.com/prometheus/client_golang/prometheus"
@ -60,7 +59,7 @@
// // The Handler function provides a default handler to expose metrics
// // via an HTTP server. "/metrics" is the usual endpoint for that.
// http.Handle("/metrics", promhttp.Handler())
// log.Fatal(http.ListenAndServe(":8080", nil))
// http.ListenAndServe(":8080", nil)
// }
//
//
@ -70,7 +69,7 @@
// Metrics
//
// The number of exported identifiers in this package might appear a bit
// overwhelming. However, in addition to the basic plumbing shown in the example
// overwhelming. Hovever, in addition to the basic plumbing shown in the example
// above, you only need to understand the different metric types and their
// vector versions for basic usage.
//
@ -96,8 +95,8 @@
// SummaryVec, HistogramVec, and UntypedVec are not.
//
// To create instances of Metrics and their vector versions, you need a suitable
// …Opts struct, i.e. GaugeOpts, CounterOpts, SummaryOpts, HistogramOpts, or
// UntypedOpts.
// …Opts struct, i.e. GaugeOpts, CounterOpts, SummaryOpts,
// HistogramOpts, or UntypedOpts.
//
// Custom Collectors and constant Metrics
//
@ -115,8 +114,8 @@
// Metric instances “on the fly” using NewConstMetric, NewConstHistogram, and
// NewConstSummary (and their respective Must… versions). That will happen in
// the Collect method. The Describe method has to return separate Desc
// instances, representative of the “throw-away” metrics to be created later.
// NewDesc comes in handy to create those Desc instances.
// instances, representative of the “throw-away” metrics to be created
// later. NewDesc comes in handy to create those Desc instances.
//
// The Collector example illustrates the use case. You can also look at the
// source code of the processCollector (mirroring process metrics), the
@ -130,34 +129,34 @@
// Advanced Uses of the Registry
//
// While MustRegister is the by far most common way of registering a Collector,
// sometimes you might want to handle the errors the registration might cause.
// As suggested by the name, MustRegister panics if an error occurs. With the
// Register function, the error is returned and can be handled.
// sometimes you might want to handle the errors the registration might
// cause. As suggested by the name, MustRegister panics if an error occurs. With
// the Register function, the error is returned and can be handled.
//
// An error is returned if the registered Collector is incompatible or
// inconsistent with already registered metrics. The registry aims for
// consistency of the collected metrics according to the Prometheus data model.
// Inconsistencies are ideally detected at registration time, not at collect
// time. The former will usually be detected at start-up time of a program,
// while the latter will only happen at scrape time, possibly not even on the
// first scrape if the inconsistency only becomes relevant later. That is the
// main reason why a Collector and a Metric have to describe themselves to the
// registry.
// consistency of the collected metrics according to the Prometheus data
// model. Inconsistencies are ideally detected at registration time, not at
// collect time. The former will usually be detected at start-up time of a
// program, while the latter will only happen at scrape time, possibly not even
// on the first scrape if the inconsistency only becomes relevant later. That is
// the main reason why a Collector and a Metric have to describe themselves to
// the registry.
//
// So far, everything we did operated on the so-called default registry, as it
// can be found in the global DefaultRegisterer variable. With NewRegistry, you
// can be found in the global DefaultRegistry variable. With NewRegistry, you
// can create a custom registry, or you can even implement the Registerer or
// Gatherer interfaces yourself. The methods Register and Unregister work in the
// same way on a custom registry as the global functions Register and Unregister
// on the default registry.
// Gatherer interfaces yourself. The methods Register and Unregister work in
// the same way on a custom registry as the global functions Register and
// Unregister on the default registry.
//
// There are a number of uses for custom registries: You can use registries with
// special properties, see NewPedanticRegistry. You can avoid global state, as
// it is imposed by the DefaultRegisterer. You can use multiple registries at
// There are a number of uses for custom registries: You can use registries
// with special properties, see NewPedanticRegistry. You can avoid global state,
// as it is imposed by the DefaultRegistry. You can use multiple registries at
// the same time to expose different metrics in different ways. You can use
// separate registries for testing purposes.
//
// Also note that the DefaultRegisterer comes registered with a Collector for Go
// Also note that the DefaultRegistry comes registered with a Collector for Go
// runtime metrics (via NewGoCollector) and a Collector for process metrics (via
// NewProcessCollector). With a custom registry, you are in control and decide
// yourself about the Collectors to register.
@ -167,20 +166,16 @@
// The Registry implements the Gatherer interface. The caller of the Gather
// method can then expose the gathered metrics in some way. Usually, the metrics
// are served via HTTP on the /metrics endpoint. That's happening in the example
// above. The tools to expose metrics via HTTP are in the promhttp sub-package.
// (The top-level functions in the prometheus package are deprecated.)
// above. The tools to expose metrics via HTTP are in the promhttp
// sub-package. (The top-level functions in the prometheus package are
// deprecated.)
//
// Pushing to the Pushgateway
//
// Function for pushing to the Pushgateway can be found in the push sub-package.
//
// Graphite Bridge
//
// Functions and examples to push metrics from a Gatherer to Graphite can be
// found in the graphite sub-package.
//
// Other Means of Exposition
//
// More ways of exposing metrics can easily be added by following the approaches
// of the existing implementations.
// More ways of exposing metrics can easily be added. Sending metrics to
// Graphite would be an example that will soon be implemented.
package prometheus

71
vendor/github.com/prometheus/client_golang/prometheus/example_timer_complex_test.go generated vendored
View file

@ -1,71 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"net/http"
"github.com/prometheus/client_golang/prometheus"
)
var (
// apiRequestDuration tracks the duration separate for each HTTP status
// class (1xx, 2xx, ...). This creates a fair amount of time series on
// the Prometheus server. Usually, you would track the duration of
// serving HTTP request without partitioning by outcome. Do something
// like this only if needed. Also note how only status classes are
// tracked, not every single status code. The latter would create an
// even larger amount of time series. Request counters partitioned by
// status code are usually OK as each counter only creates one time
// series. Histograms are way more expensive, so partition with care and
// only where you really need separate latency tracking. Partitioning by
// status class is only an example. In concrete cases, other partitions
// might make more sense.
apiRequestDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "api_request_duration_seconds",
Help: "Histogram for the request duration of the public API, partitioned by status class.",
Buckets: prometheus.ExponentialBuckets(0.1, 1.5, 5),
},
[]string{"status_class"},
)
)
func handler(w http.ResponseWriter, r *http.Request) {
status := http.StatusOK
// The ObserverFunc gets called by the deferred ObserveDuration and
// decides which Histogram's Observe method is called.
timer := prometheus.NewTimer(prometheus.ObserverFunc(func(v float64) {
switch {
case status >= 500: // Server error.
apiRequestDuration.WithLabelValues("5xx").Observe(v)
case status >= 400: // Client error.
apiRequestDuration.WithLabelValues("4xx").Observe(v)
case status >= 300: // Redirection.
apiRequestDuration.WithLabelValues("3xx").Observe(v)
case status >= 200: // Success.
apiRequestDuration.WithLabelValues("2xx").Observe(v)
default: // Informational.
apiRequestDuration.WithLabelValues("1xx").Observe(v)
}
}))
defer timer.ObserveDuration()
// Handle the request. Set status accordingly.
// ...
}
func ExampleTimer_complex() {
http.HandleFunc("/api", handler)
}

48
vendor/github.com/prometheus/client_golang/prometheus/example_timer_gauge_test.go generated vendored
View file

@ -1,48 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"os"
"github.com/prometheus/client_golang/prometheus"
)
var (
// If a function is called rarely (i.e. not more often than scrapes
// happen) or ideally only once (like in a batch job), it can make sense
// to use a Gauge for timing the function call. For timing a batch job
// and pushing the result to a Pushgateway, see also the comprehensive
// example in the push package.
funcDuration = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "example_function_duration_seconds",
Help: "Duration of the last call of an example function.",
})
)
func run() error {
// The Set method of the Gauge is used to observe the duration.
timer := prometheus.NewTimer(prometheus.ObserverFunc(funcDuration.Set))
defer timer.ObserveDuration()
// Do something. Return errors as encountered. The use of 'defer' above
// makes sure the function is still timed properly.
return nil
}
func ExampleTimer_gauge() {
if err := run(); err != nil {
os.Exit(1)
}
}

40
vendor/github.com/prometheus/client_golang/prometheus/example_timer_test.go generated vendored
View file

@ -1,40 +0,0 @@
// Copyright 2014 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus_test
import (
"math/rand"
"time"
"github.com/prometheus/client_golang/prometheus"
)
var (
requestDuration = prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "example_request_duration_seconds",
Help: "Histogram for the runtime of a simple example function.",
Buckets: prometheus.LinearBuckets(0.01, 0.01, 10),
})
)
func ExampleTimer() {
// timer times this example function. It uses a Histogram, but a Summary
// would also work, as both implement Observer. Check out
// https://prometheus.io/docs/practices/histograms/ for differences.
timer := prometheus.NewTimer(requestDuration)
defer timer.ObserveDuration()
// Do something here that takes time.
time.Sleep(time.Duration(rand.NormFloat64()*10000+50000) * time.Microsecond)
}

13
vendor/github.com/prometheus/client_golang/prometheus/examples_test.go generated vendored
View file

@ -113,7 +113,7 @@ func ExampleCounter() {
pushComplete := make(chan struct{})
// TODO: Start a goroutine that performs repository pushes and reports
// each completion via the channel.
for range pushComplete {
for _ = range pushComplete {
pushCounter.Inc()
}
// Output:
@ -169,8 +169,8 @@ func ExampleInstrumentHandler() {
func ExampleLabelPairSorter() {
labelPairs := []*dto.LabelPair{
{Name: proto.String("status"), Value: proto.String("404")},
{Name: proto.String("method"), Value: proto.String("get")},
&dto.LabelPair{Name: proto.String("status"), Value: proto.String("404")},
&dto.LabelPair{Name: proto.String("method"), Value: proto.String("get")},
}
sort.Sort(prometheus.LabelPairSorter(labelPairs))
@ -335,8 +335,7 @@ func ExampleRegister() {
func ExampleSummary() {
temps := prometheus.NewSummary(prometheus.SummaryOpts{
Name: "pond_temperature_celsius",
Help: "The temperature of the frog pond.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
Help: "The temperature of the frog pond.", // Sorry, we can't measure how badly it smells.
})
// Simulate some observations.
@ -374,8 +373,7 @@ func ExampleSummaryVec() {
temps := prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "pond_temperature_celsius",
Help: "The temperature of the frog pond.",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
Help: "The temperature of the frog pond.", // Sorry, we can't measure how badly it smells.
},
[]string{"species"},
)
@ -642,7 +640,6 @@ func ExampleAlreadyRegisteredError() {
panic(err)
}
}
reqCounter.Inc()
}
func ExampleGatherers() {

2
vendor/github.com/prometheus/client_golang/prometheus/expvar_collector_test.go generated vendored
View file

@ -24,7 +24,7 @@ import (
"github.com/prometheus/client_golang/prometheus"
)
func ExampleNewExpvarCollector() {
func ExampleExpvarCollector() {
expvarCollector := prometheus.NewExpvarCollector(map[string]*prometheus.Desc{
"memstats": prometheus.NewDesc(
"expvar_memstats",

69
vendor/github.com/prometheus/client_golang/prometheus/gauge.go generated vendored
View file

@ -27,21 +27,16 @@ type Gauge interface {
// Set sets the Gauge to an arbitrary value.
Set(float64)
// Inc increments the Gauge by 1. Use Add to increment it by arbitrary
// values.
// Inc increments the Gauge by 1.
Inc()
// Dec decrements the Gauge by 1. Use Sub to decrement it by arbitrary
// values.
// Dec decrements the Gauge by 1.
Dec()
// Add adds the given value to the Gauge. (The value can be negative,
// resulting in a decrease of the Gauge.)
// Add adds the given value to the Gauge. (The value can be
// negative, resulting in a decrease of the Gauge.)
Add(float64)
// Sub subtracts the given value from the Gauge. (The value can be
// negative, resulting in an increase of the Gauge.)
Sub(float64)
// SetToCurrentTime sets the Gauge to the current Unix time in seconds.
SetToCurrentTime()
}
// GaugeOpts is an alias for Opts. See there for doc comments.
@ -63,11 +58,12 @@ func NewGauge(opts GaugeOpts) Gauge {
// (e.g. number of operations queued, partitioned by user and operation
// type). Create instances with NewGaugeVec.
type GaugeVec struct {
*metricVec
*MetricVec
}
// NewGaugeVec creates a new GaugeVec based on the provided GaugeOpts and
// partitioned by the given label names.
// partitioned by the given label names. At least one label name must be
// provided.
func NewGaugeVec(opts GaugeOpts, labelNames []string) *GaugeVec {
desc := NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
@ -76,57 +72,28 @@ func NewGaugeVec(opts GaugeOpts, labelNames []string) *GaugeVec {
opts.ConstLabels,
)
return &GaugeVec{
metricVec: newMetricVec(desc, func(lvs ...string) Metric {
MetricVec: newMetricVec(desc, func(lvs ...string) Metric {
return newValue(desc, GaugeValue, 0, lvs...)
}),
}
}
// GetMetricWithLabelValues returns the Gauge for the given slice of label
// values (same order as the VariableLabels in Desc). If that combination of
// label values is accessed for the first time, a new Gauge is created.
//
// It is possible to call this method without using the returned Gauge to only
// create the new Gauge but leave it at its starting value 0. See also the
// SummaryVec example.
//
// Keeping the Gauge for later use is possible (and should be considered if
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
// Delete can be used to delete the Gauge from the GaugeVec. In that case, the
// Gauge will still exist, but it will not be exported anymore, even if a
// Gauge with the same label values is created later. See also the CounterVec
// example.
//
// An error is returned if the number of label values is not the same as the
// number of VariableLabels in Desc.
//
// Note that for more than one label value, this method is prone to mistakes
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
// an alternative to avoid that type of mistake. For higher label numbers, the
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// GetMetricWithLabelValues replaces the method of the same name in
// MetricVec. The difference is that this method returns a Gauge and not a
// Metric so that no type conversion is required.
func (m *GaugeVec) GetMetricWithLabelValues(lvs ...string) (Gauge, error) {
metric, err := m.metricVec.getMetricWithLabelValues(lvs...)
metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...)
if metric != nil {
return metric.(Gauge), err
}
return nil, err
}
// GetMetricWith returns the Gauge for the given Labels map (the label names
// must match those of the VariableLabels in Desc). If that label map is
// accessed for the first time, a new Gauge is created. Implications of
// creating a Gauge without using it and keeping the Gauge for later use are
// the same as for GetMetricWithLabelValues.
//
// An error is returned if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc.
//
// This method is used for the same purpose as
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
// methods.
// GetMetricWith replaces the method of the same name in MetricVec. The
// difference is that this method returns a Gauge and not a Metric so that no
// type conversion is required.
func (m *GaugeVec) GetMetricWith(labels Labels) (Gauge, error) {
metric, err := m.metricVec.getMetricWith(labels)
metric, err := m.MetricVec.GetMetricWith(labels)
if metric != nil {
return metric.(Gauge), err
}
@ -138,14 +105,14 @@ func (m *GaugeVec) GetMetricWith(labels Labels) (Gauge, error) {
// error, WithLabelValues allows shortcuts like
// myVec.WithLabelValues("404", "GET").Add(42)
func (m *GaugeVec) WithLabelValues(lvs ...string) Gauge {
return m.metricVec.withLabelValues(lvs...).(Gauge)
return m.MetricVec.WithLabelValues(lvs...).(Gauge)
}
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
// returned an error. By not returning an error, With allows shortcuts like
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
func (m *GaugeVec) With(labels Labels) Gauge {
return m.metricVec.with(labels).(Gauge)
return m.MetricVec.With(labels).(Gauge)
}
// GaugeFunc is a Gauge whose value is determined at collect time by calling a

20
vendor/github.com/prometheus/client_golang/prometheus/gauge_test.go generated vendored
View file

@ -19,7 +19,6 @@ import (
"sync"
"testing"
"testing/quick"
"time"
dto "github.com/prometheus/client_model/go"
)
@ -181,22 +180,3 @@ func TestGaugeFunc(t *testing.T) {
t.Errorf("expected %q, got %q", expected, got)
}
}
func TestGaugeSetCurrentTime(t *testing.T) {
g := NewGauge(GaugeOpts{
Name: "test_name",
Help: "test help",
})
g.SetToCurrentTime()
unixTime := float64(time.Now().Unix())
m := &dto.Metric{}
g.Write(m)
delta := unixTime - m.GetGauge().GetValue()
// This is just a smoke test to make sure SetToCurrentTime is not
// totally off. Tests with current time involved are hard...
if math.Abs(delta) > 5 {
t.Errorf("Gauge set to current time deviates from current time by more than 5s, delta is %f seconds", delta)
}
}

49
vendor/github.com/prometheus/client_golang/prometheus/go_collector.go generated vendored
View file

@ -8,10 +8,8 @@ import (
)
type goCollector struct {
goroutinesDesc *Desc
threadsDesc *Desc
goroutines Gauge
gcDesc *Desc
goInfoDesc *Desc
// metrics to describe and collect
metrics memStatsMetrics
@ -21,22 +19,15 @@ type goCollector struct {
// go process.
func NewGoCollector() Collector {
return &goCollector{
goroutinesDesc: NewDesc(
"go_goroutines",
"Number of goroutines that currently exist.",
nil, nil),
threadsDesc: NewDesc(
"go_threads",
"Number of OS threads created.",
nil, nil),
goroutines: NewGauge(GaugeOpts{
Namespace: "go",
Name: "goroutines",
Help: "Number of goroutines that currently exist.",
}),
gcDesc: NewDesc(
"go_gc_duration_seconds",
"A summary of the GC invocation durations.",
nil, nil),
goInfoDesc: NewDesc(
"go_info",
"Information about the Go environment.",
nil, Labels{"version": runtime.Version()}),
metrics: memStatsMetrics{
{
desc: NewDesc(
@ -57,7 +48,7 @@ func NewGoCollector() Collector {
}, {
desc: NewDesc(
memstatNamespace("sys_bytes"),
"Number of bytes obtained from system.",
"Number of bytes obtained by system. Sum of all system allocations.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Sys) },
@ -120,12 +111,12 @@ func NewGoCollector() Collector {
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_released_bytes"),
"Number of heap bytes released to OS.",
memstatNamespace("heap_released_bytes_total"),
"Total number of heap bytes released to OS.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapReleased) },
valType: GaugeValue,
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("heap_objects"),
@ -222,14 +213,6 @@ func NewGoCollector() Collector {
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.LastGC) / 1e9 },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("gc_cpu_fraction"),
"The fraction of this program's available CPU time used by the GC since the program started.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return ms.GCCPUFraction },
valType: GaugeValue,
},
},
}
@ -241,10 +224,9 @@ func memstatNamespace(s string) string {
// Describe returns all descriptions of the collector.
func (c *goCollector) Describe(ch chan<- *Desc) {
ch <- c.goroutinesDesc
ch <- c.threadsDesc
ch <- c.goroutines.Desc()
ch <- c.gcDesc
ch <- c.goInfoDesc
for _, i := range c.metrics {
ch <- i.desc
}
@ -252,9 +234,8 @@ func (c *goCollector) Describe(ch chan<- *Desc) {
// Collect returns the current state of all metrics of the collector.
func (c *goCollector) Collect(ch chan<- Metric) {
ch <- MustNewConstMetric(c.goroutinesDesc, GaugeValue, float64(runtime.NumGoroutine()))
n, _ := runtime.ThreadCreateProfile(nil)
ch <- MustNewConstMetric(c.threadsDesc, GaugeValue, float64(n))
c.goroutines.Set(float64(runtime.NumGoroutine()))
ch <- c.goroutines
var stats debug.GCStats
stats.PauseQuantiles = make([]time.Duration, 5)
@ -267,8 +248,6 @@ func (c *goCollector) Collect(ch chan<- Metric) {
quantiles[0.0] = stats.PauseQuantiles[0].Seconds()
ch <- MustNewConstSummary(c.gcDesc, uint64(stats.NumGC), float64(stats.PauseTotal.Seconds()), quantiles)
ch <- MustNewConstMetric(c.goInfoDesc, GaugeValue, 1)
ms := &runtime.MemStats{}
runtime.ReadMemStats(ms)
for _, i := range c.metrics {

18
vendor/github.com/prometheus/client_golang/prometheus/go_collector_test.go generated vendored
View file

@ -29,13 +29,10 @@ func TestGoCollector(t *testing.T) {
for {
select {
case m := <-ch:
// m can be Gauge or Counter,
// currently just test the go_goroutines Gauge
// and ignore others.
if m.Desc().fqName != "go_goroutines" {
continue
}
case metric := <-ch:
switch m := metric.(type) {
// Attention, this also catches Counter...
case Gauge:
pb := &dto.Metric{}
m.Write(pb)
if pb.GetGauge() == nil {
@ -53,13 +50,12 @@ func TestGoCollector(t *testing.T) {
t.Errorf("want 1 new goroutine, got %d", diff)
}
// GoCollector performs three sends per call.
// On line 27 we need to receive three more sends
// GoCollector performs two sends per call.
// On line 27 we need to receive the second send
// to shut down cleanly.
<-ch
<-ch
<-ch
return
}
case <-time.After(1 * time.Second):
t.Fatalf("expected collect timed out")
}

280
vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge.go generated vendored
View file

@ -1,280 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package graphite provides a bridge to push Prometheus metrics to a Graphite
// server.
package graphite
import (
"bufio"
"errors"
"fmt"
"io"
"net"
"sort"
"time"
"github.com/prometheus/common/expfmt"
"github.com/prometheus/common/model"
"golang.org/x/net/context"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/client_golang/prometheus"
)
const (
defaultInterval = 15 * time.Second
millisecondsPerSecond = 1000
)
// HandlerErrorHandling defines how a Handler serving metrics will handle
// errors.
type HandlerErrorHandling int
// These constants cause handlers serving metrics to behave as described if
// errors are encountered.
const (
// Ignore errors and try to push as many metrics to Graphite as possible.
ContinueOnError HandlerErrorHandling = iota
// Abort the push to Graphite upon the first error encountered.
AbortOnError
)
// Config defines the Graphite bridge config.
type Config struct {
// The url to push data to. Required.
URL string
// The prefix for the pushed Graphite metrics. Defaults to empty string.
Prefix string
// The interval to use for pushing data to Graphite. Defaults to 15 seconds.
Interval time.Duration
// The timeout for pushing metrics to Graphite. Defaults to 15 seconds.
Timeout time.Duration
// The Gatherer to use for metrics. Defaults to prometheus.DefaultGatherer.
Gatherer prometheus.Gatherer
// The logger that messages are written to. Defaults to no logging.
Logger Logger
// ErrorHandling defines how errors are handled. Note that errors are
// logged regardless of the configured ErrorHandling provided Logger
// is not nil.
ErrorHandling HandlerErrorHandling
}
// Bridge pushes metrics to the configured Graphite server.
type Bridge struct {
url string
prefix string
interval time.Duration
timeout time.Duration
errorHandling HandlerErrorHandling
logger Logger
g prometheus.Gatherer
}
// Logger is the minimal interface Bridge needs for logging. Note that
// log.Logger from the standard library implements this interface, and it is
// easy to implement by custom loggers, if they don't do so already anyway.
type Logger interface {
Println(v ...interface{})
}
// NewBridge returns a pointer to a new Bridge struct.
func NewBridge(c *Config) (*Bridge, error) {
b := &Bridge{}
if c.URL == "" {
return nil, errors.New("missing URL")
}
b.url = c.URL
if c.Gatherer == nil {
b.g = prometheus.DefaultGatherer
} else {
b.g = c.Gatherer
}
if c.Logger != nil {
b.logger = c.Logger
}
if c.Prefix != "" {
b.prefix = c.Prefix
}
var z time.Duration
if c.Interval == z {
b.interval = defaultInterval
} else {
b.interval = c.Interval
}
if c.Timeout == z {
b.timeout = defaultInterval
} else {
b.timeout = c.Timeout
}
b.errorHandling = c.ErrorHandling
return b, nil
}
// Run starts the event loop that pushes Prometheus metrics to Graphite at the
// configured interval.
func (b *Bridge) Run(ctx context.Context) {
ticker := time.NewTicker(b.interval)
defer ticker.Stop()
for {
select {
case <-ticker.C:
if err := b.Push(); err != nil && b.logger != nil {
b.logger.Println("error pushing to Graphite:", err)
}
case <-ctx.Done():
return
}
}
}
// Push pushes Prometheus metrics to the configured Graphite server.
func (b *Bridge) Push() error {
mfs, err := b.g.Gather()
if err != nil || len(mfs) == 0 {
switch b.errorHandling {
case AbortOnError:
return err
case ContinueOnError:
if b.logger != nil {
b.logger.Println("continue on error:", err)
}
default:
panic("unrecognized error handling value")
}
}
conn, err := net.DialTimeout("tcp", b.url, b.timeout)
if err != nil {
return err
}
defer conn.Close()
return writeMetrics(conn, mfs, b.prefix, model.Now())
}
func writeMetrics(w io.Writer, mfs []*dto.MetricFamily, prefix string, now model.Time) error {
vec, err := expfmt.ExtractSamples(&expfmt.DecodeOptions{
Timestamp: now,
}, mfs...)
if err != nil {
return err
}
buf := bufio.NewWriter(w)
for _, s := range vec {
if err := writeSanitized(buf, prefix); err != nil {
return err
}
if err := buf.WriteByte('.'); err != nil {
return err
}
if err := writeMetric(buf, s.Metric); err != nil {
return err
}
if _, err := fmt.Fprintf(buf, " %g %d\n", s.Value, int64(s.Timestamp)/millisecondsPerSecond); err != nil {
return err
}
if err := buf.Flush(); err != nil {
return err
}
}
return nil
}
func writeMetric(buf *bufio.Writer, m model.Metric) error {
metricName, hasName := m[model.MetricNameLabel]
numLabels := len(m) - 1
if !hasName {
numLabels = len(m)
}
labelStrings := make([]string, 0, numLabels)
for label, value := range m {
if label != model.MetricNameLabel {
labelStrings = append(labelStrings, fmt.Sprintf("%s %s", string(label), string(value)))
}
}
var err error
switch numLabels {
case 0:
if hasName {
return writeSanitized(buf, string(metricName))
}
default:
sort.Strings(labelStrings)
if err = writeSanitized(buf, string(metricName)); err != nil {
return err
}
for _, s := range labelStrings {
if err = buf.WriteByte('.'); err != nil {
return err
}
if err = writeSanitized(buf, s); err != nil {
return err
}
}
}
return nil
}
func writeSanitized(buf *bufio.Writer, s string) error {
prevUnderscore := false
for _, c := range s {
c = replaceInvalidRune(c)
if c == '_' {
if prevUnderscore {
continue
}
prevUnderscore = true
} else {
prevUnderscore = false
}
if _, err := buf.WriteRune(c); err != nil {
return err
}
}
return nil
}
func replaceInvalidRune(c rune) rune {
if c == ' ' {
return '.'
}
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == ':' || (c >= '0' && c <= '9')) {
return '_'
}
return c
}

309
vendor/github.com/prometheus/client_golang/prometheus/graphite/bridge_test.go generated vendored
View file

@ -1,309 +0,0 @@
package graphite
import (
"bufio"
"bytes"
"io"
"log"
"net"
"os"
"regexp"
"testing"
"time"
"github.com/prometheus/common/model"
"golang.org/x/net/context"
"github.com/prometheus/client_golang/prometheus"
)
func TestSanitize(t *testing.T) {
testCases := []struct {
in, out string
}{
{in: "hello", out: "hello"},
{in: "hE/l1o", out: "hE_l1o"},
{in: "he,*ll(.o", out: "he_ll_o"},
{in: "hello_there%^&", out: "hello_there_"},
}
var buf bytes.Buffer
w := bufio.NewWriter(&buf)
for i, tc := range testCases {
if err := writeSanitized(w, tc.in); err != nil {
t.Fatalf("write failed: %v", err)
}
if err := w.Flush(); err != nil {
t.Fatalf("flush failed: %v", err)
}
if want, got := tc.out, buf.String(); want != got {
t.Fatalf("test case index %d: got sanitized string %s, want %s", i, got, want)
}
buf.Reset()
}
}
func TestWriteSummary(t *testing.T) {
sumVec := prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"labelname"},
)
sumVec.WithLabelValues("val1").Observe(float64(10))
sumVec.WithLabelValues("val1").Observe(float64(20))
sumVec.WithLabelValues("val1").Observe(float64(30))
sumVec.WithLabelValues("val2").Observe(float64(20))
sumVec.WithLabelValues("val2").Observe(float64(30))
sumVec.WithLabelValues("val2").Observe(float64(40))
reg := prometheus.NewRegistry()
reg.MustRegister(sumVec)
mfs, err := reg.Gather()
if err != nil {
t.Fatalf("error: %v", err)
}
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
if err != nil {
t.Fatalf("error: %v", err)
}
want := `prefix.name.constname.constvalue.labelname.val1.quantile.0_5 20 1477043
prefix.name.constname.constvalue.labelname.val1.quantile.0_9 30 1477043
prefix.name.constname.constvalue.labelname.val1.quantile.0_99 30 1477043
prefix.name_sum.constname.constvalue.labelname.val1 60 1477043
prefix.name_count.constname.constvalue.labelname.val1 3 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_5 30 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_9 40 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_99 40 1477043
prefix.name_sum.constname.constvalue.labelname.val2 90 1477043
prefix.name_count.constname.constvalue.labelname.val2 3 1477043
`
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
}
}
func TestWriteHistogram(t *testing.T) {
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
Buckets: []float64{0.01, 0.02, 0.05, 0.1},
},
[]string{"labelname"},
)
histVec.WithLabelValues("val1").Observe(float64(10))
histVec.WithLabelValues("val1").Observe(float64(20))
histVec.WithLabelValues("val1").Observe(float64(30))
histVec.WithLabelValues("val2").Observe(float64(20))
histVec.WithLabelValues("val2").Observe(float64(30))
histVec.WithLabelValues("val2").Observe(float64(40))
reg := prometheus.NewRegistry()
reg.MustRegister(histVec)
mfs, err := reg.Gather()
if err != nil {
t.Fatalf("error: %v", err)
}
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
if err != nil {
t.Fatalf("error: %v", err)
}
want := `prefix.name_bucket.constname.constvalue.labelname.val1.le.0_01 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le.0_02 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le.0_05 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le.0_1 0 1477043
prefix.name_sum.constname.constvalue.labelname.val1 60 1477043
prefix.name_count.constname.constvalue.labelname.val1 3 1477043
prefix.name_bucket.constname.constvalue.labelname.val1.le._Inf 3 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_01 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_02 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_05 0 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le.0_1 0 1477043
prefix.name_sum.constname.constvalue.labelname.val2 90 1477043
prefix.name_count.constname.constvalue.labelname.val2 3 1477043
prefix.name_bucket.constname.constvalue.labelname.val2.le._Inf 3 1477043
`
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
}
}
func TestToReader(t *testing.T) {
cntVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
},
[]string{"labelname"},
)
cntVec.WithLabelValues("val1").Inc()
cntVec.WithLabelValues("val2").Inc()
reg := prometheus.NewRegistry()
reg.MustRegister(cntVec)
want := `prefix.name.constname.constvalue.labelname.val1 1 1477043
prefix.name.constname.constvalue.labelname.val2 1 1477043
`
mfs, err := reg.Gather()
if err != nil {
t.Fatalf("error: %v", err)
}
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
if err != nil {
t.Fatalf("error: %v", err)
}
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
}
}
func TestPush(t *testing.T) {
reg := prometheus.NewRegistry()
cntVec := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "name",
Help: "docstring",
ConstLabels: prometheus.Labels{"constname": "constvalue"},
},
[]string{"labelname"},
)
cntVec.WithLabelValues("val1").Inc()
cntVec.WithLabelValues("val2").Inc()
reg.MustRegister(cntVec)
host := "localhost"
port := ":56789"
b, err := NewBridge(&Config{
URL: host + port,
Gatherer: reg,
Prefix: "prefix",
})
if err != nil {
t.Fatalf("error creating bridge: %v", err)
}
nmg, err := newMockGraphite(port)
if err != nil {
t.Fatalf("error creating mock graphite: %v", err)
}
defer nmg.Close()
err = b.Push()
if err != nil {
t.Fatalf("error pushing: %v", err)
}
wants := []string{
"prefix.name.constname.constvalue.labelname.val1 1",
"prefix.name.constname.constvalue.labelname.val2 1",
}
select {
case got := <-nmg.readc:
for _, want := range wants {
matched, err := regexp.MatchString(want, got)
if err != nil {
t.Fatalf("error pushing: %v", err)
}
if !matched {
t.Fatalf("missing metric:\nno match for %s received by server:\n%s", want, got)
}
}
return
case err := <-nmg.errc:
t.Fatalf("error reading push: %v", err)
case <-time.After(50 * time.Millisecond):
t.Fatalf("no result from graphite server")
}
}
func newMockGraphite(port string) (*mockGraphite, error) {
readc := make(chan string)
errc := make(chan error)
ln, err := net.Listen("tcp", port)
if err != nil {
return nil, err
}
go func() {
conn, err := ln.Accept()
if err != nil {
errc <- err
}
var b bytes.Buffer
io.Copy(&b, conn)
readc <- b.String()
}()
return &mockGraphite{
readc: readc,
errc: errc,
Listener: ln,
}, nil
}
type mockGraphite struct {
readc chan string
errc chan error
net.Listener
}
func ExampleBridge() {
b, err := NewBridge(&Config{
URL: "graphite.example.org:3099",
Gatherer: prometheus.DefaultGatherer,
Prefix: "prefix",
Interval: 15 * time.Second,
Timeout: 10 * time.Second,
ErrorHandling: AbortOnError,
Logger: log.New(os.Stdout, "graphite bridge: ", log.Lshortfile),
})
if err != nil {
panic(err)
}
go func() {
// Start something in a goroutine that uses metrics.
}()
// Push initial metrics to Graphite. Fail fast if the push fails.
if err := b.Push(); err != nil {
panic(err)
}
// Create a Context to control stopping the Run() loop that pushes
// metrics to Graphite.
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Start pushing metrics to Graphite in the Run() loop.
b.Run(ctx)
}

73
vendor/github.com/prometheus/client_golang/prometheus/histogram.go generated vendored
View file

@ -287,11 +287,12 @@ func (h *histogram) Write(out *dto.Metric) error {
// (e.g. HTTP request latencies, partitioned by status code and method). Create
// instances with NewHistogramVec.
type HistogramVec struct {
*metricVec
*MetricVec
}
// NewHistogramVec creates a new HistogramVec based on the provided HistogramOpts and
// partitioned by the given label names.
// partitioned by the given label names. At least one label name must be
// provided.
func NewHistogramVec(opts HistogramOpts, labelNames []string) *HistogramVec {
desc := NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
@ -300,60 +301,30 @@ func NewHistogramVec(opts HistogramOpts, labelNames []string) *HistogramVec {
opts.ConstLabels,
)
return &HistogramVec{
metricVec: newMetricVec(desc, func(lvs ...string) Metric {
MetricVec: newMetricVec(desc, func(lvs ...string) Metric {
return newHistogram(desc, opts, lvs...)
}),
}
}
// GetMetricWithLabelValues returns the Histogram for the given slice of label
// values (same order as the VariableLabels in Desc). If that combination of
// label values is accessed for the first time, a new Histogram is created.
//
// It is possible to call this method without using the returned Histogram to only
// create the new Histogram but leave it at its starting value, a Histogram without
// any observations.
//
// Keeping the Histogram for later use is possible (and should be considered if
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
// Delete can be used to delete the Histogram from the HistogramVec. In that case, the
// Histogram will still exist, but it will not be exported anymore, even if a
// Histogram with the same label values is created later. See also the CounterVec
// example.
//
// An error is returned if the number of label values is not the same as the
// number of VariableLabels in Desc.
//
// Note that for more than one label value, this method is prone to mistakes
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
// an alternative to avoid that type of mistake. For higher label numbers, the
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// See also the GaugeVec example.
func (m *HistogramVec) GetMetricWithLabelValues(lvs ...string) (Observer, error) {
metric, err := m.metricVec.getMetricWithLabelValues(lvs...)
// GetMetricWithLabelValues replaces the method of the same name in
// MetricVec. The difference is that this method returns a Histogram and not a
// Metric so that no type conversion is required.
func (m *HistogramVec) GetMetricWithLabelValues(lvs ...string) (Histogram, error) {
metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...)
if metric != nil {
return metric.(Observer), err
return metric.(Histogram), err
}
return nil, err
}
// GetMetricWith returns the Histogram for the given Labels map (the label names
// must match those of the VariableLabels in Desc). If that label map is
// accessed for the first time, a new Histogram is created. Implications of
// creating a Histogram without using it and keeping the Histogram for later use
// are the same as for GetMetricWithLabelValues.
//
// An error is returned if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc.
//
// This method is used for the same purpose as
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
// methods.
func (m *HistogramVec) GetMetricWith(labels Labels) (Observer, error) {
metric, err := m.metricVec.getMetricWith(labels)
// GetMetricWith replaces the method of the same name in MetricVec. The
// difference is that this method returns a Histogram and not a Metric so that no
// type conversion is required.
func (m *HistogramVec) GetMetricWith(labels Labels) (Histogram, error) {
metric, err := m.MetricVec.GetMetricWith(labels)
if metric != nil {
return metric.(Observer), err
return metric.(Histogram), err
}
return nil, err
}
@ -362,15 +333,15 @@ func (m *HistogramVec) GetMetricWith(labels Labels) (Observer, error) {
// GetMetricWithLabelValues would have returned an error. By not returning an
// error, WithLabelValues allows shortcuts like
// myVec.WithLabelValues("404", "GET").Observe(42.21)
func (m *HistogramVec) WithLabelValues(lvs ...string) Observer {
return m.metricVec.withLabelValues(lvs...).(Observer)
func (m *HistogramVec) WithLabelValues(lvs ...string) Histogram {
return m.MetricVec.WithLabelValues(lvs...).(Histogram)
}
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
// returned an error. By not returning an error, With allows shortcuts like
// myVec.With(Labels{"code": "404", "method": "GET"}).Observe(42.21)
func (m *HistogramVec) With(labels Labels) Observer {
return m.metricVec.with(labels).(Observer)
func (m *HistogramVec) With(labels Labels) Histogram {
return m.MetricVec.With(labels).(Histogram)
}
type constHistogram struct {
@ -430,8 +401,8 @@ func NewConstHistogram(
buckets map[float64]uint64,
labelValues ...string,
) (Metric, error) {
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
return nil, err
if len(desc.variableLabels) != len(labelValues) {
return nil, errInconsistentCardinality
}
return &constHistogram{
desc: desc,

24
vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go generated vendored
View file

@ -119,28 +119,6 @@ func BenchmarkHistogramWrite8(b *testing.B) {
benchmarkHistogramWrite(8, b)
}
func TestHistogramNonMonotonicBuckets(t *testing.T) {
testCases := map[string][]float64{
"not strictly monotonic": {1, 2, 2, 3},
"not monotonic at all": {1, 2, 4, 3, 5},
"have +Inf in the middle": {1, 2, math.Inf(+1), 3},
}
for name, buckets := range testCases {
func() {
defer func() {
if r := recover(); r == nil {
t.Errorf("Buckets %v are %s but NewHistogram did not panic.", buckets, name)
}
}()
_ = NewHistogram(HistogramOpts{
Name: "test_histogram",
Help: "helpless",
Buckets: buckets,
})
}()
}
}
// Intentionally adding +Inf here to test if that case is handled correctly.
// Also, getCumulativeCounts depends on it.
var testBuckets = []float64{-2, -1, -0.5, 0, 0.5, 1, 2, math.Inf(+1)}
@ -286,7 +264,7 @@ func TestHistogramVecConcurrency(t *testing.T) {
for i := 0; i < vecLength; i++ {
m := &dto.Metric{}
s := his.WithLabelValues(string('A' + i))
s.(Histogram).Write(m)
s.Write(m)
if got, want := len(m.Histogram.Bucket), len(testBuckets)-1; got != want {
t.Errorf("got %d buckets in protobuf, want %d", got, want)

84
vendor/github.com/prometheus/client_golang/prometheus/http.go generated vendored
View file

@ -62,8 +62,7 @@ func giveBuf(buf *bytes.Buffer) {
//
// Deprecated: Please note the issues described in the doc comment of
// InstrumentHandler. You might want to consider using promhttp.Handler instead
// (which is not instrumented, but can be instrumented with the tooling provided
// in package promhttp).
// (which is non instrumented).
func Handler() http.Handler {
return InstrumentHandler("prometheus", UninstrumentedHandler())
}
@ -96,7 +95,7 @@ func UninstrumentedHandler() http.Handler {
closer.Close()
}
if lastErr != nil && buf.Len() == 0 {
http.Error(w, "No metrics encoded, last error:\n\n"+lastErr.Error(), http.StatusInternalServerError)
http.Error(w, "No metrics encoded, last error:\n\n"+err.Error(), http.StatusInternalServerError)
return
}
header := w.Header()
@ -159,8 +158,7 @@ func nowSeries(t ...time.Time) nower {
// value. http_requests_total is a metric vector partitioned by HTTP method
// (label name "method") and HTTP status code (label name "code").
//
// Deprecated: InstrumentHandler has several issues. Use the tooling provided in
// package promhttp instead. The issues are the following:
// Deprecated: InstrumentHandler has several issues:
//
// - It uses Summaries rather than Histograms. Summaries are not useful if
// aggregation across multiple instances is required.
@ -174,8 +172,9 @@ func nowSeries(t ...time.Time) nower {
// httputil.ReverseProxy is a prominent example for a handler
// performing such writes.
//
// - It has additional issues with HTTP/2, cf.
// https://github.com/prometheus/client_golang/issues/272.
// Upcoming versions of this package will provide ways of instrumenting HTTP
// handlers that are more flexible and have fewer issues. Please prefer direct
// instrumentation in the meantime.
func InstrumentHandler(handlerName string, handler http.Handler) http.HandlerFunc {
return InstrumentHandlerFunc(handlerName, handler.ServeHTTP)
}
@ -185,13 +184,12 @@ func InstrumentHandler(handlerName string, handler http.Handler) http.HandlerFun
// issues).
//
// Deprecated: InstrumentHandlerFunc is deprecated for the same reasons as
// InstrumentHandler is. Use the tooling provided in package promhttp instead.
// InstrumentHandler is.
func InstrumentHandlerFunc(handlerName string, handlerFunc func(http.ResponseWriter, *http.Request)) http.HandlerFunc {
return InstrumentHandlerFuncWithOpts(
SummaryOpts{
Subsystem: "http",
ConstLabels: Labels{"handler": handlerName},
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
handlerFunc,
)
@ -224,7 +222,7 @@ func InstrumentHandlerFunc(handlerName string, handlerFunc func(http.ResponseWri
// SummaryOpts.
//
// Deprecated: InstrumentHandlerWithOpts is deprecated for the same reasons as
// InstrumentHandler is. Use the tooling provided in package promhttp instead.
// InstrumentHandler is.
func InstrumentHandlerWithOpts(opts SummaryOpts, handler http.Handler) http.HandlerFunc {
return InstrumentHandlerFuncWithOpts(opts, handler.ServeHTTP)
}
@ -235,7 +233,7 @@ func InstrumentHandlerWithOpts(opts SummaryOpts, handler http.Handler) http.Hand
// SummaryOpts are used.
//
// Deprecated: InstrumentHandlerFuncWithOpts is deprecated for the same reasons
// as InstrumentHandler is. Use the tooling provided in package promhttp instead.
// as InstrumentHandler is.
func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.ResponseWriter, *http.Request)) http.HandlerFunc {
reqCnt := NewCounterVec(
CounterOpts{
@ -247,52 +245,34 @@ func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.Respo
},
instLabels,
)
if err := Register(reqCnt); err != nil {
if are, ok := err.(AlreadyRegisteredError); ok {
reqCnt = are.ExistingCollector.(*CounterVec)
} else {
panic(err)
}
}
opts.Name = "request_duration_microseconds"
opts.Help = "The HTTP request latencies in microseconds."
reqDur := NewSummary(opts)
if err := Register(reqDur); err != nil {
if are, ok := err.(AlreadyRegisteredError); ok {
reqDur = are.ExistingCollector.(Summary)
} else {
panic(err)
}
}
opts.Name = "request_size_bytes"
opts.Help = "The HTTP request sizes in bytes."
reqSz := NewSummary(opts)
if err := Register(reqSz); err != nil {
if are, ok := err.(AlreadyRegisteredError); ok {
reqSz = are.ExistingCollector.(Summary)
} else {
panic(err)
}
}
opts.Name = "response_size_bytes"
opts.Help = "The HTTP response sizes in bytes."
resSz := NewSummary(opts)
if err := Register(resSz); err != nil {
if are, ok := err.(AlreadyRegisteredError); ok {
resSz = are.ExistingCollector.(Summary)
} else {
panic(err)
}
}
regReqCnt := MustRegisterOrGet(reqCnt).(*CounterVec)
regReqDur := MustRegisterOrGet(reqDur).(Summary)
regReqSz := MustRegisterOrGet(reqSz).(Summary)
regResSz := MustRegisterOrGet(resSz).(Summary)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
now := time.Now()
delegate := &responseWriterDelegator{ResponseWriter: w}
out := computeApproximateRequestSize(r)
out := make(chan int)
urlLen := 0
if r.URL != nil {
urlLen = len(r.URL.String())
}
go computeApproximateRequestSize(r, out, urlLen)
_, cn := w.(http.CloseNotifier)
_, fl := w.(http.Flusher)
@ -310,24 +290,14 @@ func InstrumentHandlerFuncWithOpts(opts SummaryOpts, handlerFunc func(http.Respo
method := sanitizeMethod(r.Method)
code := sanitizeCode(delegate.status)
reqCnt.WithLabelValues(method, code).Inc()
reqDur.Observe(elapsed)
resSz.Observe(float64(delegate.written))
reqSz.Observe(float64(<-out))
regReqCnt.WithLabelValues(method, code).Inc()
regReqDur.Observe(elapsed)
regResSz.Observe(float64(delegate.written))
regReqSz.Observe(float64(<-out))
})
}
func computeApproximateRequestSize(r *http.Request) <-chan int {
// Get URL length in current go routine for avoiding a race condition.
// HandlerFunc that runs in parallel may modify the URL.
s := 0
if r.URL != nil {
s += len(r.URL.String())
}
out := make(chan int, 1)
go func() {
func computeApproximateRequestSize(r *http.Request, out chan int, s int) {
s += len(r.Method)
s += len(r.Proto)
for name, values := range r.Header {
@ -344,10 +314,6 @@ func computeApproximateRequestSize(r *http.Request) <-chan int {
s += int(r.ContentLength)
}
out <- s
close(out)
}()
return out
}
type responseWriterDelegator struct {

43
vendor/github.com/prometheus/client_golang/prometheus/http_test.go generated vendored
View file

@ -44,10 +44,9 @@ func TestInstrumentHandler(t *testing.T) {
opts := SummaryOpts{
Subsystem: "http",
ConstLabels: Labels{"handler": "test-handler"},
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
}
reqCnt := NewCounterVec(
reqCnt := MustRegisterOrGet(NewCounterVec(
CounterOpts{
Namespace: opts.Namespace,
Subsystem: opts.Subsystem,
@ -56,51 +55,19 @@ func TestInstrumentHandler(t *testing.T) {
ConstLabels: opts.ConstLabels,
},
instLabels,
)
err := Register(reqCnt)
if err == nil {
t.Fatal("expected reqCnt to be registered already")
}
if are, ok := err.(AlreadyRegisteredError); ok {
reqCnt = are.ExistingCollector.(*CounterVec)
} else {
t.Fatal("unexpected registration error:", err)
}
)).(*CounterVec)
opts.Name = "request_duration_microseconds"
opts.Help = "The HTTP request latencies in microseconds."
reqDur := NewSummary(opts)
err = Register(reqDur)
if err == nil {
t.Fatal("expected reqDur to be registered already")
}
if are, ok := err.(AlreadyRegisteredError); ok {
reqDur = are.ExistingCollector.(Summary)
} else {
t.Fatal("unexpected registration error:", err)
}
reqDur := MustRegisterOrGet(NewSummary(opts)).(Summary)
opts.Name = "request_size_bytes"
opts.Help = "The HTTP request sizes in bytes."
reqSz := NewSummary(opts)
err = Register(reqSz)
if err == nil {
t.Fatal("expected reqSz to be registered already")
}
if _, ok := err.(AlreadyRegisteredError); !ok {
t.Fatal("unexpected registration error:", err)
}
MustRegisterOrGet(NewSummary(opts))
opts.Name = "response_size_bytes"
opts.Help = "The HTTP response sizes in bytes."
resSz := NewSummary(opts)
err = Register(resSz)
if err == nil {
t.Fatal("expected resSz to be registered already")
}
if _, ok := err.(AlreadyRegisteredError); !ok {
t.Fatal("unexpected registration error:", err)
}
MustRegisterOrGet(NewSummary(opts))
reqCnt.Reset()

57
vendor/github.com/prometheus/client_golang/prometheus/labels.go generated vendored
View file

@ -1,57 +0,0 @@
package prometheus
import (
"errors"
"fmt"
"strings"
"unicode/utf8"
"github.com/prometheus/common/model"
)
// Labels represents a collection of label name -> value mappings. This type is
// commonly used with the With(Labels) and GetMetricWith(Labels) methods of
// metric vector Collectors, e.g.:
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
//
// The other use-case is the specification of constant label pairs in Opts or to
// create a Desc.
type Labels map[string]string
// reservedLabelPrefix is a prefix which is not legal in user-supplied
// label names.
const reservedLabelPrefix = "__"
var errInconsistentCardinality = errors.New("inconsistent label cardinality")
func validateValuesInLabels(labels Labels, expectedNumberOfValues int) error {
if len(labels) != expectedNumberOfValues {
return errInconsistentCardinality
}
for name, val := range labels {
if !utf8.ValidString(val) {
return fmt.Errorf("label %s: value %q is not valid UTF-8", name, val)
}
}
return nil
}
func validateLabelValues(vals []string, expectedNumberOfValues int) error {
if len(vals) != expectedNumberOfValues {
return errInconsistentCardinality
}
for _, val := range vals {
if !utf8.ValidString(val) {
return fmt.Errorf("label value %q is not valid UTF-8", val)
}
}
return nil
}
func checkLabelName(l string) bool {
return model.LabelName(l).IsValid() && !strings.HasPrefix(l, reservedLabelPrefix)
}

50
vendor/github.com/prometheus/client_golang/prometheus/observer.go generated vendored
View file

@ -1,50 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
// Observer is the interface that wraps the Observe method, which is used by
// Histogram and Summary to add observations.
type Observer interface {
Observe(float64)
}
// The ObserverFunc type is an adapter to allow the use of ordinary
// functions as Observers. If f is a function with the appropriate
// signature, ObserverFunc(f) is an Observer that calls f.
//
// This adapter is usually used in connection with the Timer type, and there are
// two general use cases:
//
// The most common one is to use a Gauge as the Observer for a Timer.
// See the "Gauge" Timer example.
//
// The more advanced use case is to create a function that dynamically decides
// which Observer to use for observing the duration. See the "Complex" Timer
// example.
type ObserverFunc func(float64)
// Observe calls f(value). It implements Observer.
func (f ObserverFunc) Observe(value float64) {
f(value)
}
// ObserverVec is an interface implemented by `HistogramVec` and `SummaryVec`.
type ObserverVec interface {
GetMetricWith(Labels) (Observer, error)
GetMetricWithLabelValues(lvs ...string) (Observer, error)
With(Labels) Observer
WithLabelValues(...string) Observer
Collector
}

104
vendor/github.com/prometheus/client_golang/prometheus/process_collector.go generated vendored
View file

@ -19,10 +19,10 @@ type processCollector struct {
pid int
collectFn func(chan<- Metric)
pidFn func() (int, error)
cpuTotal *Desc
openFDs, maxFDs *Desc
vsize, rss *Desc
startTime *Desc
cpuTotal Counter
openFDs, maxFDs Gauge
vsize, rss Gauge
startTime Gauge
}
// NewProcessCollector returns a collector which exports the current state of
@ -44,45 +44,40 @@ func NewProcessCollectorPIDFn(
pidFn func() (int, error),
namespace string,
) Collector {
ns := ""
if len(namespace) > 0 {
ns = namespace + "_"
}
c := processCollector{
pidFn: pidFn,
collectFn: func(chan<- Metric) {},
cpuTotal: NewDesc(
ns+"process_cpu_seconds_total",
"Total user and system CPU time spent in seconds.",
nil, nil,
),
openFDs: NewDesc(
ns+"process_open_fds",
"Number of open file descriptors.",
nil, nil,
),
maxFDs: NewDesc(
ns+"process_max_fds",
"Maximum number of open file descriptors.",
nil, nil,
),
vsize: NewDesc(
ns+"process_virtual_memory_bytes",
"Virtual memory size in bytes.",
nil, nil,
),
rss: NewDesc(
ns+"process_resident_memory_bytes",
"Resident memory size in bytes.",
nil, nil,
),
startTime: NewDesc(
ns+"process_start_time_seconds",
"Start time of the process since unix epoch in seconds.",
nil, nil,
),
cpuTotal: NewCounter(CounterOpts{
Namespace: namespace,
Name: "process_cpu_seconds_total",
Help: "Total user and system CPU time spent in seconds.",
}),
openFDs: NewGauge(GaugeOpts{
Namespace: namespace,
Name: "process_open_fds",
Help: "Number of open file descriptors.",
}),
maxFDs: NewGauge(GaugeOpts{
Namespace: namespace,
Name: "process_max_fds",
Help: "Maximum number of open file descriptors.",
}),
vsize: NewGauge(GaugeOpts{
Namespace: namespace,
Name: "process_virtual_memory_bytes",
Help: "Virtual memory size in bytes.",
}),
rss: NewGauge(GaugeOpts{
Namespace: namespace,
Name: "process_resident_memory_bytes",
Help: "Resident memory size in bytes.",
}),
startTime: NewGauge(GaugeOpts{
Namespace: namespace,
Name: "process_start_time_seconds",
Help: "Start time of the process since unix epoch in seconds.",
}),
}
// Set up process metric collection if supported by the runtime.
@ -95,12 +90,12 @@ func NewProcessCollectorPIDFn(
// Describe returns all descriptions of the collector.
func (c *processCollector) Describe(ch chan<- *Desc) {
ch <- c.cpuTotal
ch <- c.openFDs
ch <- c.maxFDs
ch <- c.vsize
ch <- c.rss
ch <- c.startTime
ch <- c.cpuTotal.Desc()
ch <- c.openFDs.Desc()
ch <- c.maxFDs.Desc()
ch <- c.vsize.Desc()
ch <- c.rss.Desc()
ch <- c.startTime.Desc()
}
// Collect returns the current state of all metrics of the collector.
@ -122,19 +117,26 @@ func (c *processCollector) processCollect(ch chan<- Metric) {
}
if stat, err := p.NewStat(); err == nil {
ch <- MustNewConstMetric(c.cpuTotal, CounterValue, stat.CPUTime())
ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(stat.VirtualMemory()))
ch <- MustNewConstMetric(c.rss, GaugeValue, float64(stat.ResidentMemory()))
c.cpuTotal.Set(stat.CPUTime())
ch <- c.cpuTotal
c.vsize.Set(float64(stat.VirtualMemory()))
ch <- c.vsize
c.rss.Set(float64(stat.ResidentMemory()))
ch <- c.rss
if startTime, err := stat.StartTime(); err == nil {
ch <- MustNewConstMetric(c.startTime, GaugeValue, startTime)
c.startTime.Set(startTime)
ch <- c.startTime
}
}
if fds, err := p.FileDescriptorsLen(); err == nil {
ch <- MustNewConstMetric(c.openFDs, GaugeValue, float64(fds))
c.openFDs.Set(float64(fds))
ch <- c.openFDs
}
if limits, err := p.NewLimits(); err == nil {
ch <- MustNewConstMetric(c.maxFDs, GaugeValue, float64(limits.OpenFiles))
c.maxFDs.Set(float64(limits.OpenFiles))
ch <- c.maxFDs
}
}

24
vendor/github.com/prometheus/client_golang/prometheus/process_collector_test.go generated vendored
View file

@ -38,18 +38,18 @@ func TestProcessCollector(t *testing.T) {
}
for _, re := range []*regexp.Regexp{
regexp.MustCompile("\nprocess_cpu_seconds_total [0-9]"),
regexp.MustCompile("\nprocess_max_fds [1-9]"),
regexp.MustCompile("\nprocess_open_fds [1-9]"),
regexp.MustCompile("\nprocess_virtual_memory_bytes [1-9]"),
regexp.MustCompile("\nprocess_resident_memory_bytes [1-9]"),
regexp.MustCompile("\nprocess_start_time_seconds [0-9.]{10,}"),
regexp.MustCompile("\nfoobar_process_cpu_seconds_total [0-9]"),
regexp.MustCompile("\nfoobar_process_max_fds [1-9]"),
regexp.MustCompile("\nfoobar_process_open_fds [1-9]"),
regexp.MustCompile("\nfoobar_process_virtual_memory_bytes [1-9]"),
regexp.MustCompile("\nfoobar_process_resident_memory_bytes [1-9]"),
regexp.MustCompile("\nfoobar_process_start_time_seconds [0-9.]{10,}"),
regexp.MustCompile("process_cpu_seconds_total [0-9]"),
regexp.MustCompile("process_max_fds [1-9]"),
regexp.MustCompile("process_open_fds [1-9]"),
regexp.MustCompile("process_virtual_memory_bytes [1-9]"),
regexp.MustCompile("process_resident_memory_bytes [1-9]"),
regexp.MustCompile("process_start_time_seconds [0-9.]{10,}"),
regexp.MustCompile("foobar_process_cpu_seconds_total [0-9]"),
regexp.MustCompile("foobar_process_max_fds [1-9]"),
regexp.MustCompile("foobar_process_open_fds [1-9]"),
regexp.MustCompile("foobar_process_virtual_memory_bytes [1-9]"),
regexp.MustCompile("foobar_process_resident_memory_bytes [1-9]"),
regexp.MustCompile("foobar_process_start_time_seconds [0-9.]{10,}"),
} {
if !re.Match(buf.Bytes()) {
t.Errorf("want body to match %s\n%s", re, buf.String())

199
vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go generated vendored
View file

@ -1,199 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package promhttp
import (
"bufio"
"io"
"net"
"net/http"
)
const (
closeNotifier = 1 << iota
flusher
hijacker
readerFrom
pusher
)
type delegator interface {
http.ResponseWriter
Status() int
Written() int64
}
type responseWriterDelegator struct {
http.ResponseWriter
handler, method string
status int
written int64
wroteHeader bool
observeWriteHeader func(int)
}
func (r *responseWriterDelegator) Status() int {
return r.status
}
func (r *responseWriterDelegator) Written() int64 {
return r.written
}
func (r *responseWriterDelegator) WriteHeader(code int) {
r.status = code
r.wroteHeader = true
r.ResponseWriter.WriteHeader(code)
if r.observeWriteHeader != nil {
r.observeWriteHeader(code)
}
}
func (r *responseWriterDelegator) Write(b []byte) (int, error) {
if !r.wroteHeader {
r.WriteHeader(http.StatusOK)
}
n, err := r.ResponseWriter.Write(b)
r.written += int64(n)
return n, err
}
type closeNotifierDelegator struct{ *responseWriterDelegator }
type flusherDelegator struct{ *responseWriterDelegator }
type hijackerDelegator struct{ *responseWriterDelegator }
type readerFromDelegator struct{ *responseWriterDelegator }
func (d *closeNotifierDelegator) CloseNotify() <-chan bool {
return d.ResponseWriter.(http.CloseNotifier).CloseNotify()
}
func (d *flusherDelegator) Flush() {
d.ResponseWriter.(http.Flusher).Flush()
}
func (d *hijackerDelegator) Hijack() (net.Conn, *bufio.ReadWriter, error) {
return d.ResponseWriter.(http.Hijacker).Hijack()
}
func (d *readerFromDelegator) ReadFrom(re io.Reader) (int64, error) {
if !d.wroteHeader {
d.WriteHeader(http.StatusOK)
}
n, err := d.ResponseWriter.(io.ReaderFrom).ReadFrom(re)
d.written += n
return n, err
}
var pickDelegator = make([]func(*responseWriterDelegator) delegator, 32)
func init() {
// TODO(beorn7): Code generation would help here.
pickDelegator[0] = func(d *responseWriterDelegator) delegator { // 0
return d
}
pickDelegator[closeNotifier] = func(d *responseWriterDelegator) delegator { // 1
return closeNotifierDelegator{d}
}
pickDelegator[flusher] = func(d *responseWriterDelegator) delegator { // 2
return flusherDelegator{d}
}
pickDelegator[flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 3
return struct {
*responseWriterDelegator
http.Flusher
http.CloseNotifier
}{d, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[hijacker] = func(d *responseWriterDelegator) delegator { // 4
return hijackerDelegator{d}
}
pickDelegator[hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 5
return struct {
*responseWriterDelegator
http.Hijacker
http.CloseNotifier
}{d, &hijackerDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 6
return struct {
*responseWriterDelegator
http.Hijacker
http.Flusher
}{d, &hijackerDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 7
return struct {
*responseWriterDelegator
http.Hijacker
http.Flusher
http.CloseNotifier
}{d, &hijackerDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[readerFrom] = func(d *responseWriterDelegator) delegator { // 8
return readerFromDelegator{d}
}
pickDelegator[readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 9
return struct {
*responseWriterDelegator
io.ReaderFrom
http.CloseNotifier
}{d, &readerFromDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 10
return struct {
*responseWriterDelegator
io.ReaderFrom
http.Flusher
}{d, &readerFromDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 11
return struct {
*responseWriterDelegator
io.ReaderFrom
http.Flusher
http.CloseNotifier
}{d, &readerFromDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 12
return struct {
*responseWriterDelegator
io.ReaderFrom
http.Hijacker
}{d, &readerFromDelegator{d}, &hijackerDelegator{d}}
}
pickDelegator[readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 13
return struct {
*responseWriterDelegator
io.ReaderFrom
http.Hijacker
http.CloseNotifier
}{d, &readerFromDelegator{d}, &hijackerDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 14
return struct {
*responseWriterDelegator
io.ReaderFrom
http.Hijacker
http.Flusher
}{d, &readerFromDelegator{d}, &hijackerDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 15
return struct {
*responseWriterDelegator
io.ReaderFrom
http.Hijacker
http.Flusher
http.CloseNotifier
}{d, &readerFromDelegator{d}, &hijackerDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
}

181
vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_1_8.go generated vendored
View file

@ -1,181 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.8
package promhttp
import (
"io"
"net/http"
)
type pusherDelegator struct{ *responseWriterDelegator }
func (d *pusherDelegator) Push(target string, opts *http.PushOptions) error {
return d.ResponseWriter.(http.Pusher).Push(target, opts)
}
func init() {
pickDelegator[pusher] = func(d *responseWriterDelegator) delegator { // 16
return pusherDelegator{d}
}
pickDelegator[pusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 17
return struct {
*responseWriterDelegator
http.Pusher
http.CloseNotifier
}{d, &pusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+flusher] = func(d *responseWriterDelegator) delegator { // 18
return struct {
*responseWriterDelegator
http.Pusher
http.Flusher
}{d, &pusherDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[pusher+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 19
return struct {
*responseWriterDelegator
http.Pusher
http.Flusher
http.CloseNotifier
}{d, &pusherDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+hijacker] = func(d *responseWriterDelegator) delegator { // 20
return struct {
*responseWriterDelegator
http.Pusher
http.Hijacker
}{d, &pusherDelegator{d}, &hijackerDelegator{d}}
}
pickDelegator[pusher+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 21
return struct {
*responseWriterDelegator
http.Pusher
http.Hijacker
http.CloseNotifier
}{d, &pusherDelegator{d}, &hijackerDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 22
return struct {
*responseWriterDelegator
http.Pusher
http.Hijacker
http.Flusher
}{d, &pusherDelegator{d}, &hijackerDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[pusher+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { //23
return struct {
*responseWriterDelegator
http.Pusher
http.Hijacker
http.Flusher
http.CloseNotifier
}{d, &pusherDelegator{d}, &hijackerDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+readerFrom] = func(d *responseWriterDelegator) delegator { // 24
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
}{d, &pusherDelegator{d}, &readerFromDelegator{d}}
}
pickDelegator[pusher+readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 25
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.CloseNotifier
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 26
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.Flusher
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[pusher+readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 27
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.Flusher
http.CloseNotifier
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 28
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.Hijacker
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &hijackerDelegator{d}}
}
pickDelegator[pusher+readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 29
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.Hijacker
http.CloseNotifier
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &hijackerDelegator{d}, &closeNotifierDelegator{d}}
}
pickDelegator[pusher+readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 30
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.Hijacker
http.Flusher
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &hijackerDelegator{d}, &flusherDelegator{d}}
}
pickDelegator[pusher+readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 31
return struct {
*responseWriterDelegator
http.Pusher
io.ReaderFrom
http.Hijacker
http.Flusher
http.CloseNotifier
}{d, &pusherDelegator{d}, &readerFromDelegator{d}, &hijackerDelegator{d}, &flusherDelegator{d}, &closeNotifierDelegator{d}}
}
}
func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator {
d := &responseWriterDelegator{
ResponseWriter: w,
observeWriteHeader: observeWriteHeaderFunc,
}
id := 0
if _, ok := w.(http.CloseNotifier); ok {
id += closeNotifier
}
if _, ok := w.(http.Flusher); ok {
id += flusher
}
if _, ok := w.(http.Hijacker); ok {
id += hijacker
}
if _, ok := w.(io.ReaderFrom); ok {
id += readerFrom
}
if _, ok := w.(http.Pusher); ok {
id += pusher
}
return pickDelegator[id](d)
}

44
vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator_pre_1_8.go generated vendored
View file

@ -1,44 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !go1.8
package promhttp
import (
"io"
"net/http"
)
func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator {
d := &responseWriterDelegator{
ResponseWriter: w,
observeWriteHeader: observeWriteHeaderFunc,
}
id := 0
if _, ok := w.(http.CloseNotifier); ok {
id += closeNotifier
}
if _, ok := w.(http.Flusher); ok {
id += flusher
}
if _, ok := w.(http.Hijacker); ok {
id += hijacker
}
if _, ok := w.(io.ReaderFrom); ok {
id += readerFrom
}
return pickDelegator[id](d)
}

31
vendor/github.com/prometheus/client_golang/prometheus/promhttp/http.go generated vendored
View file

@ -11,24 +11,21 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// Package promhttp provides tooling around HTTP servers and clients.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// First, the package allows the creation of http.Handler instances to expose
// Prometheus metrics via HTTP. promhttp.Handler acts on the
// prometheus.DefaultGatherer. With HandlerFor, you can create a handler for a
// custom registry or anything that implements the Gatherer interface. It also
// allows the creation of handlers that act differently on errors or allow to
// log errors.
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
// Package promhttp contains functions to create http.Handler instances to
// expose Prometheus metrics via HTTP. In later versions of this package, it
// will also contain tooling to instrument instances of http.Handler and
// http.RoundTripper.
//
// Second, the package provides tooling to instrument instances of http.Handler
// via middleware. Middleware wrappers follow the naming scheme
// InstrumentHandlerX, where X describes the intended use of the middleware.
// See each function's doc comment for specific details.
//
// Finally, the package allows for an http.RoundTripper to be instrumented via
// middleware. Middleware wrappers follow the naming scheme
// InstrumentRoundTripperX, where X describes the intended use of the
// middleware. See each function's doc comment for specific details.
// promhttp.Handler acts on the prometheus.DefaultGatherer. With HandlerFor,
// you can create a handler for a custom registry or anything that implements
// the Gatherer interface. It also allows to create handlers that act
// differently on errors or allow to log errors.
package promhttp
import (
@ -128,7 +125,7 @@ func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler {
closer.Close()
}
if lastErr != nil && buf.Len() == 0 {
http.Error(w, "No metrics encoded, last error:\n\n"+lastErr.Error(), http.StatusInternalServerError)
http.Error(w, "No metrics encoded, last error:\n\n"+err.Error(), http.StatusInternalServerError)
return
}
header := w.Header()

6
vendor/github.com/prometheus/client_golang/prometheus/promhttp/http_test.go generated vendored
View file

@ -11,6 +11,12 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
package promhttp
import (

98
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client.go generated vendored
View file

@ -1,98 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package promhttp
import (
"net/http"
"time"
"github.com/prometheus/client_golang/prometheus"
)
// The RoundTripperFunc type is an adapter to allow the use of ordinary
// functions as RoundTrippers. If f is a function with the appropriate
// signature, RountTripperFunc(f) is a RoundTripper that calls f.
type RoundTripperFunc func(req *http.Request) (*http.Response, error)
// RoundTrip implements the RoundTripper interface.
func (rt RoundTripperFunc) RoundTrip(r *http.Request) (*http.Response, error) {
return rt(r)
}
// InstrumentRoundTripperInFlight is a middleware that wraps the provided
// http.RoundTripper. It sets the provided prometheus.Gauge to the number of
// requests currently handled by the wrapped http.RoundTripper.
//
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
func InstrumentRoundTripperInFlight(gauge prometheus.Gauge, next http.RoundTripper) RoundTripperFunc {
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
gauge.Inc()
defer gauge.Dec()
return next.RoundTrip(r)
})
}
// InstrumentRoundTripperCounter is a middleware that wraps the provided
// http.RoundTripper to observe the request result with the provided CounterVec.
// The CounterVec must have zero, one, or two labels. The only allowed label
// names are "code" and "method". The function panics if any other instance
// labels are provided. Partitioning of the CounterVec happens by HTTP status
// code and/or HTTP method if the respective instance label names are present
// in the CounterVec. For unpartitioned counting, use a CounterVec with
// zero labels.
//
// If the wrapped RoundTripper panics or returns a non-nil error, the Counter
// is not incremented.
//
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.RoundTripper) RoundTripperFunc {
code, method := checkLabels(counter)
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
resp, err := next.RoundTrip(r)
if err == nil {
counter.With(labels(code, method, r.Method, resp.StatusCode)).Inc()
}
return resp, err
})
}
// InstrumentRoundTripperDuration is a middleware that wraps the provided
// http.RoundTripper to observe the request duration with the provided ObserverVec.
// The ObserverVec must have zero, one, or two labels. The only allowed label
// names are "code" and "method". The function panics if any other instance
// labels are provided. The Observe method of the Observer in the ObserverVec
// is called with the request duration in seconds. Partitioning happens by HTTP
// status code and/or HTTP method if the respective instance label names are
// present in the ObserverVec. For unpartitioned observations, use an
// ObserverVec with zero labels. Note that partitioning of Histograms is
// expensive and should be used judiciously.
//
// If the wrapped RoundTripper panics or returns a non-nil error, no values are
// reported.
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
func InstrumentRoundTripperDuration(obs prometheus.ObserverVec, next http.RoundTripper) RoundTripperFunc {
code, method := checkLabels(obs)
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
start := time.Now()
resp, err := next.RoundTrip(r)
if err == nil {
obs.With(labels(code, method, r.Method, resp.StatusCode)).Observe(time.Since(start).Seconds())
}
return resp, err
})
}

144
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8.go generated vendored
View file

@ -1,144 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.8
package promhttp
import (
"context"
"crypto/tls"
"net/http"
"net/http/httptrace"
"time"
)
// InstrumentTrace is used to offer flexibility in instrumenting the available
// httptrace.ClientTrace hook functions. Each function is passed a float64
// representing the time in seconds since the start of the http request. A user
// may choose to use separately buckets Histograms, or implement custom
// instance labels on a per function basis.
type InstrumentTrace struct {
GotConn func(float64)
PutIdleConn func(float64)
GotFirstResponseByte func(float64)
Got100Continue func(float64)
DNSStart func(float64)
DNSDone func(float64)
ConnectStart func(float64)
ConnectDone func(float64)
TLSHandshakeStart func(float64)
TLSHandshakeDone func(float64)
WroteHeaders func(float64)
Wait100Continue func(float64)
WroteRequest func(float64)
}
// InstrumentRoundTripperTrace is a middleware that wraps the provided
// RoundTripper and reports times to hook functions provided in the
// InstrumentTrace struct. Hook functions that are not present in the provided
// InstrumentTrace struct are ignored. Times reported to the hook functions are
// time since the start of the request. Only with Go1.9+, those times are
// guaranteed to never be negative. (Earlier Go versions are not using a
// monotonic clock.) Note that partitioning of Histograms is expensive and
// should be used judiciously.
//
// For hook functions that receive an error as an argument, no observations are
// made in the event of a non-nil error value.
//
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
func InstrumentRoundTripperTrace(it *InstrumentTrace, next http.RoundTripper) RoundTripperFunc {
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
start := time.Now()
trace := &httptrace.ClientTrace{
GotConn: func(_ httptrace.GotConnInfo) {
if it.GotConn != nil {
it.GotConn(time.Since(start).Seconds())
}
},
PutIdleConn: func(err error) {
if err != nil {
return
}
if it.PutIdleConn != nil {
it.PutIdleConn(time.Since(start).Seconds())
}
},
DNSStart: func(_ httptrace.DNSStartInfo) {
if it.DNSStart != nil {
it.DNSStart(time.Since(start).Seconds())
}
},
DNSDone: func(_ httptrace.DNSDoneInfo) {
if it.DNSStart != nil {
it.DNSStart(time.Since(start).Seconds())
}
},
ConnectStart: func(_, _ string) {
if it.ConnectStart != nil {
it.ConnectStart(time.Since(start).Seconds())
}
},
ConnectDone: func(_, _ string, err error) {
if err != nil {
return
}
if it.ConnectDone != nil {
it.ConnectDone(time.Since(start).Seconds())
}
},
GotFirstResponseByte: func() {
if it.GotFirstResponseByte != nil {
it.GotFirstResponseByte(time.Since(start).Seconds())
}
},
Got100Continue: func() {
if it.Got100Continue != nil {
it.Got100Continue(time.Since(start).Seconds())
}
},
TLSHandshakeStart: func() {
if it.TLSHandshakeStart != nil {
it.TLSHandshakeStart(time.Since(start).Seconds())
}
},
TLSHandshakeDone: func(_ tls.ConnectionState, err error) {
if err != nil {
return
}
if it.TLSHandshakeDone != nil {
it.TLSHandshakeDone(time.Since(start).Seconds())
}
},
WroteHeaders: func() {
if it.WroteHeaders != nil {
it.WroteHeaders(time.Since(start).Seconds())
}
},
Wait100Continue: func() {
if it.Wait100Continue != nil {
it.Wait100Continue(time.Since(start).Seconds())
}
},
WroteRequest: func(_ httptrace.WroteRequestInfo) {
if it.WroteRequest != nil {
it.WroteRequest(time.Since(start).Seconds())
}
},
}
r = r.WithContext(httptrace.WithClientTrace(context.Background(), trace))
return next.RoundTrip(r)
})
}

195
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_client_1_8_test.go generated vendored
View file

@ -1,195 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.8
package promhttp
import (
"log"
"net/http"
"testing"
"time"
"github.com/prometheus/client_golang/prometheus"
)
func TestClientMiddlewareAPI(t *testing.T) {
client := http.DefaultClient
client.Timeout = 1 * time.Second
reg := prometheus.NewRegistry()
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "client_in_flight_requests",
Help: "A gauge of in-flight requests for the wrapped client.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "client_api_requests_total",
Help: "A counter for requests from the wrapped client.",
},
[]string{"code", "method"},
)
dnsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "dns_duration_seconds",
Help: "Trace dns latency histogram.",
Buckets: []float64{.005, .01, .025, .05},
},
[]string{"event"},
)
tlsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "tls_duration_seconds",
Help: "Trace tls latency histogram.",
Buckets: []float64{.05, .1, .25, .5},
},
[]string{"event"},
)
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "request_duration_seconds",
Help: "A histogram of request latencies.",
Buckets: prometheus.DefBuckets,
},
[]string{"method"},
)
reg.MustRegister(counter, tlsLatencyVec, dnsLatencyVec, histVec, inFlightGauge)
trace := &InstrumentTrace{
DNSStart: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_start")
},
DNSDone: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_done")
},
TLSHandshakeStart: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_start")
},
TLSHandshakeDone: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_done")
},
}
client.Transport = InstrumentRoundTripperInFlight(inFlightGauge,
InstrumentRoundTripperCounter(counter,
InstrumentRoundTripperTrace(trace,
InstrumentRoundTripperDuration(histVec, http.DefaultTransport),
),
),
)
resp, err := client.Get("http://google.com")
if err != nil {
t.Fatalf("%v", err)
}
defer resp.Body.Close()
}
func ExampleInstrumentRoundTripperDuration() {
client := http.DefaultClient
client.Timeout = 1 * time.Second
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "client_in_flight_requests",
Help: "A gauge of in-flight requests for the wrapped client.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "client_api_requests_total",
Help: "A counter for requests from the wrapped client.",
},
[]string{"code", "method"},
)
// dnsLatencyVec uses custom buckets based on expected dns durations.
// It has an instance label "event", which is set in the
// DNSStart and DNSDonehook functions defined in the
// InstrumentTrace struct below.
dnsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "dns_duration_seconds",
Help: "Trace dns latency histogram.",
Buckets: []float64{.005, .01, .025, .05},
},
[]string{"event"},
)
// tlsLatencyVec uses custom buckets based on expected tls durations.
// It has an instance label "event", which is set in the
// TLSHandshakeStart and TLSHandshakeDone hook functions defined in the
// InstrumentTrace struct below.
tlsLatencyVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "tls_duration_seconds",
Help: "Trace tls latency histogram.",
Buckets: []float64{.05, .1, .25, .5},
},
[]string{"event"},
)
// histVec has no labels, making it a zero-dimensional ObserverVec.
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "request_duration_seconds",
Help: "A histogram of request latencies.",
Buckets: prometheus.DefBuckets,
},
[]string{},
)
// Register all of the metrics in the standard registry.
prometheus.MustRegister(counter, tlsLatencyVec, dnsLatencyVec, histVec, inFlightGauge)
// Define functions for the available httptrace.ClientTrace hook
// functions that we want to instrument.
trace := &InstrumentTrace{
DNSStart: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_start")
},
DNSDone: func(t float64) {
dnsLatencyVec.WithLabelValues("dns_done")
},
TLSHandshakeStart: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_start")
},
TLSHandshakeDone: func(t float64) {
tlsLatencyVec.WithLabelValues("tls_handshake_done")
},
}
// Wrap the default RoundTripper with middleware.
roundTripper := InstrumentRoundTripperInFlight(inFlightGauge,
InstrumentRoundTripperCounter(counter,
InstrumentRoundTripperTrace(trace,
InstrumentRoundTripperDuration(histVec, http.DefaultTransport),
),
),
)
// Set the RoundTripper on our client.
client.Transport = roundTripper
resp, err := client.Get("http://google.com")
if err != nil {
log.Printf("error: %v", err)
}
defer resp.Body.Close()
}

440
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go generated vendored
View file

@ -1,440 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package promhttp
import (
"net/http"
"strconv"
"strings"
"time"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/client_golang/prometheus"
)
// magicString is used for the hacky label test in checkLabels. Remove once fixed.
const magicString = "zZgWfBxLqvG8kc8IMv3POi2Bb0tZI3vAnBx+gBaFi9FyPzB/CzKUer1yufDa"
// InstrumentHandlerInFlight is a middleware that wraps the provided
// http.Handler. It sets the provided prometheus.Gauge to the number of
// requests currently handled by the wrapped http.Handler.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerInFlight(g prometheus.Gauge, next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
g.Inc()
defer g.Dec()
next.ServeHTTP(w, r)
})
}
// InstrumentHandlerDuration is a middleware that wraps the provided
// http.Handler to observe the request duration with the provided ObserverVec.
// The ObserverVec must have zero, one, or two labels. The only allowed label
// names are "code" and "method". The function panics if any other instance
// labels are provided. The Observe method of the Observer in the ObserverVec
// is called with the request duration in seconds. Partitioning happens by HTTP
// status code and/or HTTP method if the respective instance label names are
// present in the ObserverVec. For unpartitioned observations, use an
// ObserverVec with zero labels. Note that partitioning of Histograms is
// expensive and should be used judiciously.
//
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
//
// If the wrapped Handler panics, no values are reported.
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
code, method := checkLabels(obs)
if code {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
now := time.Now()
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
obs.With(labels(code, method, r.Method, d.Status())).Observe(time.Since(now).Seconds())
})
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
now := time.Now()
next.ServeHTTP(w, r)
obs.With(labels(code, method, r.Method, 0)).Observe(time.Since(now).Seconds())
})
}
// InstrumentHandlerCounter is a middleware that wraps the provided
// http.Handler to observe the request result with the provided CounterVec.
// The CounterVec must have zero, one, or two labels. The only allowed label
// names are "code" and "method". The function panics if any other instance
// labels are provided. Partitioning of the CounterVec happens by HTTP status
// code and/or HTTP method if the respective instance label names are present
// in the CounterVec. For unpartitioned counting, use a CounterVec with
// zero labels.
//
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
//
// If the wrapped Handler panics, the Counter is not incremented.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler) http.HandlerFunc {
code, method := checkLabels(counter)
if code {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
counter.With(labels(code, method, r.Method, d.Status())).Inc()
})
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
counter.With(labels(code, method, r.Method, 0)).Inc()
})
}
// InstrumentHandlerTimeToWriteHeader is a middleware that wraps the provided
// http.Handler to observe with the provided ObserverVec the request duration
// until the response headers are written. The ObserverVec must have zero, one,
// or two labels. The only allowed label names are "code" and "method". The
// function panics if any other instance labels are provided. The Observe
// method of the Observer in the ObserverVec is called with the request
// duration in seconds. Partitioning happens by HTTP status code and/or HTTP
// method if the respective instance label names are present in the
// ObserverVec. For unpartitioned observations, use an ObserverVec with zero
// labels. Note that partitioning of Histograms is expensive and should be used
// judiciously.
//
// If the wrapped Handler panics before calling WriteHeader, no value is
// reported.
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerTimeToWriteHeader(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
code, method := checkLabels(obs)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
now := time.Now()
d := newDelegator(w, func(status int) {
obs.With(labels(code, method, r.Method, status)).Observe(time.Since(now).Seconds())
})
next.ServeHTTP(d, r)
})
}
// InstrumentHandlerRequestSize is a middleware that wraps the provided
// http.Handler to observe the request size with the provided ObserverVec.
// The ObserverVec must have zero, one, or two labels. The only allowed label
// names are "code" and "method". The function panics if any other instance
// labels are provided. The Observe method of the Observer in the ObserverVec
// is called with the request size in bytes. Partitioning happens by HTTP
// status code and/or HTTP method if the respective instance label names are
// present in the ObserverVec. For unpartitioned observations, use an
// ObserverVec with zero labels. Note that partitioning of Histograms is
// expensive and should be used judiciously.
//
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
//
// If the wrapped Handler panics, no values are reported.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
code, method := checkLabels(obs)
if code {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
size := computeApproximateRequestSize(r)
obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(size))
})
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
size := computeApproximateRequestSize(r)
obs.With(labels(code, method, r.Method, 0)).Observe(float64(size))
})
}
// InstrumentHandlerResponseSize is a middleware that wraps the provided
// http.Handler to observe the response size with the provided ObserverVec.
// The ObserverVec must have zero, one, or two labels. The only allowed label
// names are "code" and "method". The function panics if any other instance
// labels are provided. The Observe method of the Observer in the ObserverVec
// is called with the response size in bytes. Partitioning happens by HTTP
// status code and/or HTTP method if the respective instance label names are
// present in the ObserverVec. For unpartitioned observations, use an
// ObserverVec with zero labels. Note that partitioning of Histograms is
// expensive and should be used judiciously.
//
// If the wrapped Handler does not set a status code, a status code of 200 is assumed.
//
// If the wrapped Handler panics, no values are reported.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerResponseSize(obs prometheus.ObserverVec, next http.Handler) http.Handler {
code, method := checkLabels(obs)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(d.Written()))
})
}
func checkLabels(c prometheus.Collector) (code bool, method bool) {
// TODO(beorn7): Remove this hacky way to check for instance labels
// once Descriptors can have their dimensionality queried.
var (
desc *prometheus.Desc
pm dto.Metric
)
descc := make(chan *prometheus.Desc, 1)
c.Describe(descc)
select {
case desc = <-descc:
default:
panic("no description provided by collector")
}
select {
case <-descc:
panic("more than one description provided by collector")
default:
}
close(descc)
if _, err := prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0); err == nil {
return
}
if m, err := prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0, magicString); err == nil {
if err := m.Write(&pm); err != nil {
panic("error checking metric for labels")
}
for _, label := range pm.Label {
name, value := label.GetName(), label.GetValue()
if value != magicString {
continue
}
switch name {
case "code":
code = true
case "method":
method = true
default:
panic("metric partitioned with non-supported labels")
}
return
}
panic("previously set label not found – this must never happen")
}
if m, err := prometheus.NewConstMetric(desc, prometheus.UntypedValue, 0, magicString, magicString); err == nil {
if err := m.Write(&pm); err != nil {
panic("error checking metric for labels")
}
for _, label := range pm.Label {
name, value := label.GetName(), label.GetValue()
if value != magicString {
continue
}
if name == "code" || name == "method" {
continue
}
panic("metric partitioned with non-supported labels")
}
code = true
method = true
return
}
panic("metric partitioned with non-supported labels")
}
// emptyLabels is a one-time allocation for non-partitioned metrics to avoid
// unnecessary allocations on each request.
var emptyLabels = prometheus.Labels{}
func labels(code, method bool, reqMethod string, status int) prometheus.Labels {
if !(code || method) {
return emptyLabels
}
labels := prometheus.Labels{}
if code {
labels["code"] = sanitizeCode(status)
}
if method {
labels["method"] = sanitizeMethod(reqMethod)
}
return labels
}
func computeApproximateRequestSize(r *http.Request) int {
s := 0
if r.URL != nil {
s += len(r.URL.String())
}
s += len(r.Method)
s += len(r.Proto)
for name, values := range r.Header {
s += len(name)
for _, value := range values {
s += len(value)
}
}
s += len(r.Host)
// N.B. r.Form and r.MultipartForm are assumed to be included in r.URL.
if r.ContentLength != -1 {
s += int(r.ContentLength)
}
return s
}
func sanitizeMethod(m string) string {
switch m {
case "GET", "get":
return "get"
case "PUT", "put":
return "put"
case "HEAD", "head":
return "head"
case "POST", "post":
return "post"
case "DELETE", "delete":
return "delete"
case "CONNECT", "connect":
return "connect"
case "OPTIONS", "options":
return "options"
case "NOTIFY", "notify":
return "notify"
default:
return strings.ToLower(m)
}
}
// If the wrapped http.Handler has not set a status code, i.e. the value is
// currently 0, santizeCode will return 200, for consistency with behavior in
// the stdlib.
func sanitizeCode(s int) string {
switch s {
case 100:
return "100"
case 101:
return "101"
case 200, 0:
return "200"
case 201:
return "201"
case 202:
return "202"
case 203:
return "203"
case 204:
return "204"
case 205:
return "205"
case 206:
return "206"
case 300:
return "300"
case 301:
return "301"
case 302:
return "302"
case 304:
return "304"
case 305:
return "305"
case 307:
return "307"
case 400:
return "400"
case 401:
return "401"
case 402:
return "402"
case 403:
return "403"
case 404:
return "404"
case 405:
return "405"
case 406:
return "406"
case 407:
return "407"
case 408:
return "408"
case 409:
return "409"
case 410:
return "410"
case 411:
return "411"
case 412:
return "412"
case 413:
return "413"
case 414:
return "414"
case 415:
return "415"
case 416:
return "416"
case 417:
return "417"
case 418:
return "418"
case 500:
return "500"
case 501:
return "501"
case 502:
return "502"
case 503:
return "503"
case 504:
return "504"
case 505:
return "505"
case 428:
return "428"
case 429:
return "429"
case 431:
return "431"
case 511:
return "511"
default:
return strconv.Itoa(s)
}
}

233
vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server_test.go generated vendored
View file

@ -1,233 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package promhttp
import (
"io"
"log"
"net/http"
"net/http/httptest"
"testing"
"github.com/prometheus/client_golang/prometheus"
)
func TestMiddlewareAPI(t *testing.T) {
reg := prometheus.NewRegistry()
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "in_flight_requests",
Help: "A gauge of requests currently being served by the wrapped handler.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "api_requests_total",
Help: "A counter for requests to the wrapped handler.",
},
[]string{"code", "method"},
)
histVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "response_duration_seconds",
Help: "A histogram of request latencies.",
Buckets: prometheus.DefBuckets,
ConstLabels: prometheus.Labels{"handler": "api"},
},
[]string{"method"},
)
writeHeaderVec := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "write_header_duration_seconds",
Help: "A histogram of time to first write latencies.",
Buckets: prometheus.DefBuckets,
ConstLabels: prometheus.Labels{"handler": "api"},
},
[]string{},
)
responseSize := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "push_request_size_bytes",
Help: "A histogram of request sizes for requests.",
Buckets: []float64{200, 500, 900, 1500},
},
[]string{},
)
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("OK"))
})
reg.MustRegister(inFlightGauge, counter, histVec, responseSize, writeHeaderVec)
chain := InstrumentHandlerInFlight(inFlightGauge,
InstrumentHandlerCounter(counter,
InstrumentHandlerDuration(histVec,
InstrumentHandlerTimeToWriteHeader(writeHeaderVec,
InstrumentHandlerResponseSize(responseSize, handler),
),
),
),
)
r, _ := http.NewRequest("GET", "www.example.com", nil)
w := httptest.NewRecorder()
chain.ServeHTTP(w, r)
}
func TestInstrumentTimeToFirstWrite(t *testing.T) {
var i int
dobs := &responseWriterDelegator{
ResponseWriter: httptest.NewRecorder(),
observeWriteHeader: func(status int) {
i = status
},
}
d := newDelegator(dobs, nil)
d.WriteHeader(http.StatusOK)
if i != http.StatusOK {
t.Fatalf("failed to execute observeWriteHeader")
}
}
// testResponseWriter is an http.ResponseWriter that also implements
// http.CloseNotifier, http.Flusher, and io.ReaderFrom.
type testResponseWriter struct {
closeNotifyCalled, flushCalled, readFromCalled bool
}
func (t *testResponseWriter) Header() http.Header { return nil }
func (t *testResponseWriter) Write([]byte) (int, error) { return 0, nil }
func (t *testResponseWriter) WriteHeader(int) {}
func (t *testResponseWriter) CloseNotify() <-chan bool {
t.closeNotifyCalled = true
return nil
}
func (t *testResponseWriter) Flush() { t.flushCalled = true }
func (t *testResponseWriter) ReadFrom(io.Reader) (int64, error) {
t.readFromCalled = true
return 0, nil
}
func TestInterfaceUpgrade(t *testing.T) {
w := &testResponseWriter{}
d := newDelegator(w, nil)
d.(http.CloseNotifier).CloseNotify()
if !w.closeNotifyCalled {
t.Error("CloseNotify not called")
}
d.(http.Flusher).Flush()
if !w.flushCalled {
t.Error("Flush not called")
}
d.(io.ReaderFrom).ReadFrom(nil)
if !w.readFromCalled {
t.Error("ReadFrom not called")
}
if _, ok := d.(http.Hijacker); ok {
t.Error("delegator unexpectedly implements http.Hijacker")
}
}
func ExampleInstrumentHandlerDuration() {
inFlightGauge := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "in_flight_requests",
Help: "A gauge of requests currently being served by the wrapped handler.",
})
counter := prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "api_requests_total",
Help: "A counter for requests to the wrapped handler.",
},
[]string{"code", "method"},
)
// pushVec and pullVec are partitioned by the HTTP method and use custom
// buckets based on the expected request duration. ConstLabels are used
// to set a handler label to mark pushVec as tracking the durations for
// pushes and pullVec as tracking the durations for pulls. Note that
// Name, Help, and Buckets need to be the same for consistency, so we
// use the same HistogramOpts after just modifying the ConstLabels.
histogramOpts := prometheus.HistogramOpts{
Name: "request_duration_seconds",
Help: "A histogram of latencies for requests.",
Buckets: []float64{.25, .5, 1, 2.5, 5, 10},
ConstLabels: prometheus.Labels{"handler": "push"},
}
pushVec := prometheus.NewHistogramVec(
histogramOpts,
[]string{"method"},
)
histogramOpts.ConstLabels = prometheus.Labels{"handler": "pull"}
pullVec := prometheus.NewHistogramVec(
histogramOpts,
[]string{"method"},
)
// responseSize has no labels, making it a zero-dimensional
// ObserverVec.
responseSize := prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Name: "response_size_bytes",
Help: "A histogram of response sizes for requests.",
Buckets: []float64{200, 500, 900, 1500},
},
[]string{},
)
// Create the handlers that will be wrapped by the middleware.
pushHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Push"))
})
pullHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Pull"))
})
// Register all of the metrics in the standard registry.
prometheus.MustRegister(inFlightGauge, counter, pullVec, pushVec, responseSize)
// Wrap the pushHandler with our shared middleware, but use the
// endpoint-specific pushVec with InstrumentHandlerDuration.
pushChain := InstrumentHandlerInFlight(inFlightGauge,
InstrumentHandlerCounter(counter,
InstrumentHandlerDuration(pushVec,
InstrumentHandlerResponseSize(responseSize, pushHandler),
),
),
)
// Wrap the pushHandler with the shared middleware, but use the
// endpoint-specific pullVec with InstrumentHandlerDuration.
pullChain := InstrumentHandlerInFlight(inFlightGauge,
InstrumentHandlerCounter(counter,
InstrumentHandlerDuration(pullVec,
InstrumentHandlerResponseSize(responseSize, pullHandler),
),
),
)
http.Handle("/metrics", Handler())
http.Handle("/push", pushChain)
http.Handle("/pull", pullChain)
if err := http.ListenAndServe(":3000", nil); err != nil {
log.Fatal(err)
}
}

84
vendor/github.com/prometheus/client_golang/prometheus/push/example_add_from_gatherer_test.go generated vendored
View file

@ -1,84 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Copyright (c) 2013, The Prometheus Authors
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
package push_test
import (
"fmt"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/push"
)
var (
completionTime = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_last_completion_timestamp_seconds",
Help: "The timestamp of the last completion of a DB backup, successful or not.",
})
successTime = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_last_success_timestamp_seconds",
Help: "The timestamp of the last successful completion of a DB backup.",
})
duration = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_duration_seconds",
Help: "The duration of the last DB backup in seconds.",
})
records = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_records_processed",
Help: "The number of records processed in the last DB backup.",
})
)
func performBackup() (int, error) {
// Perform the backup and return the number of backed up records and any
// applicable error.
// ...
return 42, nil
}
func ExampleAddFromGatherer() {
registry := prometheus.NewRegistry()
registry.MustRegister(completionTime, duration, records)
// Note that successTime is not registered at this time.
start := time.Now()
n, err := performBackup()
records.Set(float64(n))
// Note that time.Since only uses a monotonic clock in Go1.9+.
duration.Set(time.Since(start).Seconds())
completionTime.SetToCurrentTime()
if err != nil {
fmt.Println("DB backup failed:", err)
} else {
// Only now register successTime.
registry.MustRegister(successTime)
successTime.SetToCurrentTime()
}
// AddFromGatherer is used here rather than FromGatherer to not delete a
// previously pushed success timestamp in case of a failure of this
// backup.
if err := push.AddFromGatherer(
"db_backup", nil,
"http://pushgateway:9091",
registry,
); err != nil {
fmt.Println("Could not push to Pushgateway:", err)
}
}

24
vendor/github.com/prometheus/client_golang/prometheus/push/examples_test.go generated vendored
View file

@ -15,6 +15,7 @@ package push_test
import (
"fmt"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/push"
@ -23,9 +24,9 @@ import (
func ExampleCollectors() {
completionTime := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_last_completion_timestamp_seconds",
Help: "The timestamp of the last successful completion of a DB backup.",
Help: "The timestamp of the last succesful completion of a DB backup.",
})
completionTime.SetToCurrentTime()
completionTime.Set(float64(time.Now().Unix()))
if err := push.Collectors(
"db_backup", push.HostnameGroupingKey(),
"http://pushgateway:9091",
@ -34,3 +35,22 @@ func ExampleCollectors() {
fmt.Println("Could not push completion time to Pushgateway:", err)
}
}
func ExampleRegistry() {
registry := prometheus.NewRegistry()
completionTime := prometheus.NewGauge(prometheus.GaugeOpts{
Name: "db_backup_last_completion_timestamp_seconds",
Help: "The timestamp of the last succesful completion of a DB backup.",
})
registry.MustRegister(completionTime)
completionTime.Set(float64(time.Now().Unix()))
if err := push.FromGatherer(
"db_backup", push.HostnameGroupingKey(),
"http://pushgateway:9091",
registry,
); err != nil {
fmt.Println("Could not push completion time to Pushgateway:", err)
}
}

2
vendor/github.com/prometheus/client_golang/prometheus/push/push.go generated vendored
View file

@ -84,7 +84,7 @@ func push(job string, grouping map[string]string, pushURL string, g prometheus.G
}
urlComponents := []string{url.QueryEscape(job)}
for ln, lv := range grouping {
if !model.LabelName(ln).IsValid() {
if !model.LabelNameRE.MatchString(ln) {
return fmt.Errorf("grouping label has invalid name: %s", ln)
}
if strings.Contains(lv, "/") {

68
vendor/github.com/prometheus/client_golang/prometheus/registry.go generated vendored
View file

@ -20,7 +20,6 @@ import (
"os"
"sort"
"sync"
"unicode/utf8"
"github.com/golang/protobuf/proto"
@ -81,7 +80,7 @@ func NewPedanticRegistry() *Registry {
// Registerer is the interface for the part of a registry in charge of
// registering and unregistering. Users of custom registries should use
// Registerer as type for registration purposes (rather than the Registry type
// Registerer as type for registration purposes (rather then the Registry type
// directly). In that way, they are free to use custom Registerer implementation
// (e.g. for testing purposes).
type Registerer interface {
@ -153,6 +152,38 @@ func MustRegister(cs ...Collector) {
DefaultRegisterer.MustRegister(cs...)
}
// RegisterOrGet registers the provided Collector with the DefaultRegisterer and
// returns the Collector, unless an equal Collector was registered before, in
// which case that Collector is returned.
//
// Deprecated: RegisterOrGet is merely a convenience function for the
// implementation as described in the documentation for
// AlreadyRegisteredError. As the use case is relatively rare, this function
// will be removed in a future version of this package to clean up the
// namespace.
func RegisterOrGet(c Collector) (Collector, error) {
if err := Register(c); err != nil {
if are, ok := err.(AlreadyRegisteredError); ok {
return are.ExistingCollector, nil
}
return nil, err
}
return c, nil
}
// MustRegisterOrGet behaves like RegisterOrGet but panics instead of returning
// an error.
//
// Deprecated: This is deprecated for the same reason RegisterOrGet is. See
// there for details.
func MustRegisterOrGet(c Collector) Collector {
c, err := RegisterOrGet(c)
if err != nil {
panic(err)
}
return c
}
// Unregister removes the registration of the provided Collector from the
// DefaultRegisterer.
//
@ -170,6 +201,25 @@ func (gf GathererFunc) Gather() ([]*dto.MetricFamily, error) {
return gf()
}
// SetMetricFamilyInjectionHook replaces the DefaultGatherer with one that
// gathers from the previous DefaultGatherers but then merges the MetricFamily
// protobufs returned from the provided hook function with the MetricFamily
// protobufs returned from the original DefaultGatherer.
//
// Deprecated: This function manipulates the DefaultGatherer variable. Consider
// the implications, i.e. don't do this concurrently with any uses of the
// DefaultGatherer. In the rare cases where you need to inject MetricFamily
// protobufs directly, it is recommended to use a custom Registry and combine it
// with a custom Gatherer using the Gatherers type (see
// there). SetMetricFamilyInjectionHook only exists for compatibility reasons
// with previous versions of this package.
func SetMetricFamilyInjectionHook(hook func() []*dto.MetricFamily) {
DefaultGatherer = Gatherers{
DefaultGatherer,
GathererFunc(func() ([]*dto.MetricFamily, error) { return hook(), nil }),
}
}
// AlreadyRegisteredError is returned by the Register method if the Collector to
// be registered has already been registered before, or a different Collector
// that collects the same metrics has been registered before. Registration fails
@ -244,7 +294,7 @@ func (r *Registry) Register(c Collector) error {
}()
r.mtx.Lock()
defer r.mtx.Unlock()
// Conduct various tests...
// Coduct various tests...
for desc := range descChan {
// Is the descriptor valid at all?
@ -397,7 +447,7 @@ func (r *Registry) Gather() ([]*dto.MetricFamily, error) {
// Drain metricChan in case of premature return.
defer func() {
for range metricChan {
for _ = range metricChan {
}
}()
@ -633,7 +683,7 @@ func (s metricSorter) Less(i, j int) bool {
return s[i].GetTimestampMs() < s[j].GetTimestampMs()
}
// normalizeMetricFamilies returns a MetricFamily slice with empty
// normalizeMetricFamilies returns a MetricFamily slice whith empty
// MetricFamilies pruned and the remaining MetricFamilies sorted by name within
// the slice, with the contained Metrics sorted within each MetricFamily.
func normalizeMetricFamilies(metricFamiliesByName map[string]*dto.MetricFamily) []*dto.MetricFamily {
@ -656,7 +706,7 @@ func normalizeMetricFamilies(metricFamiliesByName map[string]*dto.MetricFamily)
// checkMetricConsistency checks if the provided Metric is consistent with the
// provided MetricFamily. It also hashed the Metric labels and the MetricFamily
// name. If the resulting hash is already in the provided metricHashes, an error
// name. If the resulting hash is alread in the provided metricHashes, an error
// is returned. If not, it is added to metricHashes. The provided dimHashes maps
// MetricFamily names to their dimHash (hashed sorted label names). If dimHashes
// doesn't yet contain a hash for the provided MetricFamily, it is
@ -680,12 +730,6 @@ func checkMetricConsistency(
)
}
for _, labelPair := range dtoMetric.GetLabel() {
if !utf8.ValidString(*labelPair.Value) {
return fmt.Errorf("collected metric's label %s is not utf8: %#v", *labelPair.Name, *labelPair.Value)
}
}
// Is the metric unique (i.e. no other metric with the same name and the same label values)?
h := hashNew()
h = hashAdd(h, metricFamily.GetName())

61
vendor/github.com/prometheus/client_golang/prometheus/registry_test.go generated vendored
View file

@ -209,34 +209,6 @@ metric: <
expectedMetricFamilyMergedWithExternalAsProtoCompactText := []byte(`name:"name" help:"docstring" type:COUNTER metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"different_val" > counter:<value:42 > > metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"val1" > counter:<value:1 > > metric:<label:<name:"constname" value:"constvalue" > label:<name:"labelname" value:"val2" > counter:<value:1 > >
`)
externalMetricFamilyWithInvalidLabelValue := &dto.MetricFamily{
Name: proto.String("name"),
Help: proto.String("docstring"),
Type: dto.MetricType_COUNTER.Enum(),
Metric: []*dto.Metric{
{
Label: []*dto.LabelPair{
{
Name: proto.String("constname"),
Value: proto.String("\xFF"),
},
{
Name: proto.String("labelname"),
Value: proto.String("different_val"),
},
},
Counter: &dto.Counter{
Value: proto.Float64(42),
},
},
},
}
expectedMetricFamilyInvalidLabelValueAsText := []byte(`An error has occurred during metrics gathering:
collected metric's label constname is not utf8: "\xff"
`)
type output struct {
headers map[string]string
body []byte
@ -480,22 +452,6 @@ collected metric's label constname is not utf8: "\xff"
externalMetricFamilyWithSameName,
},
},
{ // 16
headers: map[string]string{
"Accept": "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=compact-text",
},
out: output{
headers: map[string]string{
"Content-Type": `text/plain; charset=utf-8`,
},
body: expectedMetricFamilyInvalidLabelValueAsText,
},
collector: metricVec,
externalMF: []*dto.MetricFamily{
externalMetricFamily,
externalMetricFamilyWithInvalidLabelValue,
},
},
}
for i, scenario := range scenarios {
registry := prometheus.NewPedanticRegistry()
@ -570,21 +526,20 @@ func TestRegisterWithOrGet(t *testing.T) {
},
[]string{"foo", "bar"},
)
var err error
if err = prometheus.Register(original); err != nil {
if err := prometheus.Register(original); err != nil {
t.Fatal(err)
}
if err = prometheus.Register(equalButNotSame); err == nil {
if err := prometheus.Register(equalButNotSame); err == nil {
t.Fatal("expected error when registringe equal collector")
}
if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
if are.ExistingCollector != original {
existing, err := prometheus.RegisterOrGet(equalButNotSame)
if err != nil {
t.Fatal(err)
}
if existing != original {
t.Error("expected original collector but got something else")
}
if are.ExistingCollector == equalButNotSame {
if existing == equalButNotSame {
t.Error("expected original callector but got new one")
}
} else {
t.Error("unexpected error:", err)
}
}

101
vendor/github.com/prometheus/client_golang/prometheus/summary.go generated vendored
View file

@ -36,10 +36,7 @@ const quantileLabel = "quantile"
//
// A typical use-case is the observation of request latencies. By default, a
// Summary provides the median, the 90th and the 99th percentile of the latency
// as rank estimations. However, the default behavior will change in the
// upcoming v0.10 of the library. There will be no rank estiamtions at all by
// default. For a sane transition, it is recommended to set the desired rank
// estimations explicitly.
// as rank estimations.
//
// Note that the rank estimations cannot be aggregated in a meaningful way with
// the Prometheus query language (i.e. you cannot average or add them). If you
@ -57,9 +54,6 @@ type Summary interface {
}
// DefObjectives are the default Summary quantile values.
//
// Deprecated: DefObjectives will not be used as the default objectives in
// v0.10 of the library. The default Summary will have no quantiles then.
var (
DefObjectives = map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}
@ -81,10 +75,8 @@ const (
)
// SummaryOpts bundles the options for creating a Summary metric. It is
// mandatory to set Name and Help to a non-empty string. While all other fields
// are optional and can safely be left at their zero value, it is recommended to
// explicitly set the Objectives field to the desired value as the default value
// will change in the upcoming v0.10 of the library.
// mandatory to set Name and Help to a non-empty string. All other fields are
// optional and can safely be left at their zero value.
type SummaryOpts struct {
// Namespace, Subsystem, and Name are components of the fully-qualified
// name of the Summary (created by joining these components with
@ -121,15 +113,9 @@ type SummaryOpts struct {
ConstLabels Labels
// Objectives defines the quantile rank estimates with their respective
// absolute error. If Objectives[q] = e, then the value reported for q
// will be the φ-quantile value for some φ between q-e and q+e. The
// default value is DefObjectives. It is used if Objectives is left at
// its zero value (i.e. nil). To create a Summary without Objectives,
// set it to an empty map (i.e. map[float64]float64{}).
//
// Deprecated: Note that the current value of DefObjectives is
// deprecated. It will be replaced by an empty map in v0.10 of the
// library. Please explicitly set Objectives to the desired value.
// absolute error. If Objectives[q] = e, then the value reported
// for q will be the φ-quantile value for some φ between q-e and q+e.
// The default value is DefObjectives.
Objectives map[float64]float64
// MaxAge defines the duration for which an observation stays relevant
@ -197,7 +183,7 @@ func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary {
}
}
if opts.Objectives == nil {
if len(opts.Objectives) == 0 {
opts.Objectives = DefObjectives
}
@ -404,11 +390,12 @@ func (s quantSort) Less(i, j int) bool {
// (e.g. HTTP request latencies, partitioned by status code and method). Create
// instances with NewSummaryVec.
type SummaryVec struct {
*metricVec
*MetricVec
}
// NewSummaryVec creates a new SummaryVec based on the provided SummaryOpts and
// partitioned by the given label names.
// partitioned by the given label names. At least one label name must be
// provided.
func NewSummaryVec(opts SummaryOpts, labelNames []string) *SummaryVec {
desc := NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
@ -417,60 +404,30 @@ func NewSummaryVec(opts SummaryOpts, labelNames []string) *SummaryVec {
opts.ConstLabels,
)
return &SummaryVec{
metricVec: newMetricVec(desc, func(lvs ...string) Metric {
MetricVec: newMetricVec(desc, func(lvs ...string) Metric {
return newSummary(desc, opts, lvs...)
}),
}
}
// GetMetricWithLabelValues returns the Summary for the given slice of label
// values (same order as the VariableLabels in Desc). If that combination of
// label values is accessed for the first time, a new Summary is created.
//
// It is possible to call this method without using the returned Summary to only
// create the new Summary but leave it at its starting value, a Summary without
// any observations.
//
// Keeping the Summary for later use is possible (and should be considered if
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
// Delete can be used to delete the Summary from the SummaryVec. In that case, the
// Summary will still exist, but it will not be exported anymore, even if a
// Summary with the same label values is created later. See also the CounterVec
// example.
//
// An error is returned if the number of label values is not the same as the
// number of VariableLabels in Desc.
//
// Note that for more than one label value, this method is prone to mistakes
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
// an alternative to avoid that type of mistake. For higher label numbers, the
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// See also the GaugeVec example.
func (m *SummaryVec) GetMetricWithLabelValues(lvs ...string) (Observer, error) {
metric, err := m.metricVec.getMetricWithLabelValues(lvs...)
// GetMetricWithLabelValues replaces the method of the same name in
// MetricVec. The difference is that this method returns a Summary and not a
// Metric so that no type conversion is required.
func (m *SummaryVec) GetMetricWithLabelValues(lvs ...string) (Summary, error) {
metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...)
if metric != nil {
return metric.(Observer), err
return metric.(Summary), err
}
return nil, err
}
// GetMetricWith returns the Summary for the given Labels map (the label names
// must match those of the VariableLabels in Desc). If that label map is
// accessed for the first time, a new Summary is created. Implications of
// creating a Summary without using it and keeping the Summary for later use are
// the same as for GetMetricWithLabelValues.
//
// An error is returned if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc.
//
// This method is used for the same purpose as
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
// methods.
func (m *SummaryVec) GetMetricWith(labels Labels) (Observer, error) {
metric, err := m.metricVec.getMetricWith(labels)
// GetMetricWith replaces the method of the same name in MetricVec. The
// difference is that this method returns a Summary and not a Metric so that no
// type conversion is required.
func (m *SummaryVec) GetMetricWith(labels Labels) (Summary, error) {
metric, err := m.MetricVec.GetMetricWith(labels)
if metric != nil {
return metric.(Observer), err
return metric.(Summary), err
}
return nil, err
}
@ -479,15 +436,15 @@ func (m *SummaryVec) GetMetricWith(labels Labels) (Observer, error) {
// GetMetricWithLabelValues would have returned an error. By not returning an
// error, WithLabelValues allows shortcuts like
// myVec.WithLabelValues("404", "GET").Observe(42.21)
func (m *SummaryVec) WithLabelValues(lvs ...string) Observer {
return m.metricVec.withLabelValues(lvs...).(Observer)
func (m *SummaryVec) WithLabelValues(lvs ...string) Summary {
return m.MetricVec.WithLabelValues(lvs...).(Summary)
}
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
// returned an error. By not returning an error, With allows shortcuts like
// myVec.With(Labels{"code": "404", "method": "GET"}).Observe(42.21)
func (m *SummaryVec) With(labels Labels) Observer {
return m.metricVec.with(labels).(Observer)
func (m *SummaryVec) With(labels Labels) Summary {
return m.MetricVec.With(labels).(Summary)
}
type constSummary struct {
@ -548,8 +505,8 @@ func NewConstSummary(
quantiles map[float64]float64,
labelValues ...string,
) (Metric, error) {
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
return nil, err
if len(desc.variableLabels) != len(labelValues) {
return nil, errInconsistentCardinality
}
return &constSummary{
desc: desc,

45
vendor/github.com/prometheus/client_golang/prometheus/summary_test.go generated vendored
View file

@ -25,45 +25,6 @@ import (
dto "github.com/prometheus/client_model/go"
)
func TestSummaryWithDefaultObjectives(t *testing.T) {
reg := NewRegistry()
summaryWithDefaultObjectives := NewSummary(SummaryOpts{
Name: "default_objectives",
Help: "Test help.",
})
if err := reg.Register(summaryWithDefaultObjectives); err != nil {
t.Error(err)
}
m := &dto.Metric{}
if err := summaryWithDefaultObjectives.Write(m); err != nil {
t.Error(err)
}
if len(m.GetSummary().Quantile) != len(DefObjectives) {
t.Error("expected default objectives in summary")
}
}
func TestSummaryWithoutObjectives(t *testing.T) {
reg := NewRegistry()
summaryWithEmptyObjectives := NewSummary(SummaryOpts{
Name: "empty_objectives",
Help: "Test help.",
Objectives: map[float64]float64{},
})
if err := reg.Register(summaryWithEmptyObjectives); err != nil {
t.Error(err)
}
m := &dto.Metric{}
if err := summaryWithEmptyObjectives.Write(m); err != nil {
t.Error(err)
}
if len(m.GetSummary().Quantile) != 0 {
t.Error("expected no objectives in summary")
}
}
func benchmarkSummaryObserve(w int, b *testing.B) {
b.StopTimer()
@ -177,7 +138,6 @@ func TestSummaryConcurrency(t *testing.T) {
sum := NewSummary(SummaryOpts{
Name: "test_summary",
Help: "helpless",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
})
allVars := make([]float64, total)
@ -265,7 +225,6 @@ func TestSummaryVecConcurrency(t *testing.T) {
SummaryOpts{
Name: "test_summary",
Help: "helpless",
Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
},
[]string{"label"},
)
@ -301,7 +260,7 @@ func TestSummaryVecConcurrency(t *testing.T) {
for i := 0; i < vecLength; i++ {
m := &dto.Metric{}
s := sum.WithLabelValues(string('A' + i))
s.(Summary).Write(m)
s.Write(m)
if got, want := int(*m.Summary.SampleCount), len(allVars[i]); got != want {
t.Errorf("got sample count %d for label %c, want %d", got, 'A'+i, want)
}
@ -346,7 +305,7 @@ func TestSummaryDecay(t *testing.T) {
m := &dto.Metric{}
i := 0
tick := time.NewTicker(time.Millisecond)
for range tick.C {
for _ = range tick.C {
i++
sum.Observe(float64(i))
if i%10 == 0 {

51
vendor/github.com/prometheus/client_golang/prometheus/timer.go generated vendored
View file

@ -1,51 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import "time"
// Timer is a helper type to time functions. Use NewTimer to create new
// instances.
type Timer struct {
begin time.Time
observer Observer
}
// NewTimer creates a new Timer. The provided Observer is used to observe a
// duration in seconds. Timer is usually used to time a function call in the
// following way:
// func TimeMe() {
// timer := NewTimer(myHistogram)
// defer timer.ObserveDuration()
// // Do actual work.
// }
func NewTimer(o Observer) *Timer {
return &Timer{
begin: time.Now(),
observer: o,
}
}
// ObserveDuration records the duration passed since the Timer was created with
// NewTimer. It calls the Observe method of the Observer provided during
// construction with the duration in seconds as an argument. ObserveDuration is
// usually called with a defer statement.
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
func (t *Timer) ObserveDuration() {
if t.observer != nil {
t.observer.Observe(time.Since(t.begin).Seconds())
}
}

152
vendor/github.com/prometheus/client_golang/prometheus/timer_test.go generated vendored
View file

@ -1,152 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus
import (
"testing"
dto "github.com/prometheus/client_model/go"
)
func TestTimerObserve(t *testing.T) {
var (
his = NewHistogram(HistogramOpts{Name: "test_histogram"})
sum = NewSummary(SummaryOpts{Name: "test_summary"})
gauge = NewGauge(GaugeOpts{Name: "test_gauge"})
)
func() {
hisTimer := NewTimer(his)
sumTimer := NewTimer(sum)
gaugeTimer := NewTimer(ObserverFunc(gauge.Set))
defer hisTimer.ObserveDuration()
defer sumTimer.ObserveDuration()
defer gaugeTimer.ObserveDuration()
}()
m := &dto.Metric{}
his.Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for histogram, got %d", want, got)
}
m.Reset()
sum.Write(m)
if want, got := uint64(1), m.GetSummary().GetSampleCount(); want != got {
t.Errorf("want %d observations for summary, got %d", want, got)
}
m.Reset()
gauge.Write(m)
if got := m.GetGauge().GetValue(); got <= 0 {
t.Errorf("want value > 0 for gauge, got %f", got)
}
}
func TestTimerEmpty(t *testing.T) {
emptyTimer := NewTimer(nil)
emptyTimer.ObserveDuration()
// Do nothing, just demonstrate it works without panic.
}
func TestTimerConditionalTiming(t *testing.T) {
var (
his = NewHistogram(HistogramOpts{
Name: "test_histogram",
})
timeMe = true
m = &dto.Metric{}
)
timedFunc := func() {
timer := NewTimer(ObserverFunc(func(v float64) {
if timeMe {
his.Observe(v)
}
}))
defer timer.ObserveDuration()
}
timedFunc() // This will time.
his.Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for histogram, got %d", want, got)
}
timeMe = false
timedFunc() // This will not time again.
m.Reset()
his.Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for histogram, got %d", want, got)
}
}
func TestTimerByOutcome(t *testing.T) {
var (
his = NewHistogramVec(
HistogramOpts{Name: "test_histogram"},
[]string{"outcome"},
)
outcome = "foo"
m = &dto.Metric{}
)
timedFunc := func() {
timer := NewTimer(ObserverFunc(func(v float64) {
his.WithLabelValues(outcome).Observe(v)
}))
defer timer.ObserveDuration()
if outcome == "foo" {
outcome = "bar"
return
}
outcome = "foo"
}
timedFunc()
his.WithLabelValues("foo").(Histogram).Write(m)
if want, got := uint64(0), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'foo' histogram, got %d", want, got)
}
m.Reset()
his.WithLabelValues("bar").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'bar' histogram, got %d", want, got)
}
timedFunc()
m.Reset()
his.WithLabelValues("foo").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'foo' histogram, got %d", want, got)
}
m.Reset()
his.WithLabelValues("bar").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'bar' histogram, got %d", want, got)
}
timedFunc()
m.Reset()
his.WithLabelValues("foo").(Histogram).Write(m)
if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'foo' histogram, got %d", want, got)
}
m.Reset()
his.WithLabelValues("bar").(Histogram).Write(m)
if want, got := uint64(2), m.GetHistogram().GetSampleCount(); want != got {
t.Errorf("want %d observations for 'bar' histogram, got %d", want, got)
}
}

102
vendor/github.com/prometheus/client_golang/prometheus/untyped.go generated vendored
View file

@ -13,12 +13,108 @@
package prometheus
// Untyped is a Metric that represents a single numerical value that can
// arbitrarily go up and down.
//
// An Untyped metric works the same as a Gauge. The only difference is that to
// no type information is implied.
//
// To create Untyped instances, use NewUntyped.
type Untyped interface {
Metric
Collector
// Set sets the Untyped metric to an arbitrary value.
Set(float64)
// Inc increments the Untyped metric by 1.
Inc()
// Dec decrements the Untyped metric by 1.
Dec()
// Add adds the given value to the Untyped metric. (The value can be
// negative, resulting in a decrease.)
Add(float64)
// Sub subtracts the given value from the Untyped metric. (The value can
// be negative, resulting in an increase.)
Sub(float64)
}
// UntypedOpts is an alias for Opts. See there for doc comments.
type UntypedOpts Opts
// UntypedFunc works like GaugeFunc but the collected metric is of type
// "Untyped". UntypedFunc is useful to mirror an external metric of unknown
// type.
// NewUntyped creates a new Untyped metric from the provided UntypedOpts.
func NewUntyped(opts UntypedOpts) Untyped {
return newValue(NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
opts.Help,
nil,
opts.ConstLabels,
), UntypedValue, 0)
}
// UntypedVec is a Collector that bundles a set of Untyped metrics that all
// share the same Desc, but have different values for their variable
// labels. This is used if you want to count the same thing partitioned by
// various dimensions. Create instances with NewUntypedVec.
type UntypedVec struct {
*MetricVec
}
// NewUntypedVec creates a new UntypedVec based on the provided UntypedOpts and
// partitioned by the given label names. At least one label name must be
// provided.
func NewUntypedVec(opts UntypedOpts, labelNames []string) *UntypedVec {
desc := NewDesc(
BuildFQName(opts.Namespace, opts.Subsystem, opts.Name),
opts.Help,
labelNames,
opts.ConstLabels,
)
return &UntypedVec{
MetricVec: newMetricVec(desc, func(lvs ...string) Metric {
return newValue(desc, UntypedValue, 0, lvs...)
}),
}
}
// GetMetricWithLabelValues replaces the method of the same name in
// MetricVec. The difference is that this method returns an Untyped and not a
// Metric so that no type conversion is required.
func (m *UntypedVec) GetMetricWithLabelValues(lvs ...string) (Untyped, error) {
metric, err := m.MetricVec.GetMetricWithLabelValues(lvs...)
if metric != nil {
return metric.(Untyped), err
}
return nil, err
}
// GetMetricWith replaces the method of the same name in MetricVec. The
// difference is that this method returns an Untyped and not a Metric so that no
// type conversion is required.
func (m *UntypedVec) GetMetricWith(labels Labels) (Untyped, error) {
metric, err := m.MetricVec.GetMetricWith(labels)
if metric != nil {
return metric.(Untyped), err
}
return nil, err
}
// WithLabelValues works as GetMetricWithLabelValues, but panics where
// GetMetricWithLabelValues would have returned an error. By not returning an
// error, WithLabelValues allows shortcuts like
// myVec.WithLabelValues("404", "GET").Add(42)
func (m *UntypedVec) WithLabelValues(lvs ...string) Untyped {
return m.MetricVec.WithLabelValues(lvs...).(Untyped)
}
// With works as GetMetricWith, but panics where GetMetricWithLabels would have
// returned an error. By not returning an error, With allows shortcuts like
// myVec.With(Labels{"code": "404", "method": "GET"}).Add(42)
func (m *UntypedVec) With(labels Labels) Untyped {
return m.MetricVec.With(labels).(Untyped)
}
// UntypedFunc is an Untyped whose value is determined at collect time by
// calling a provided function.
//
// To create UntypedFunc instances, use NewUntypedFunc.
type UntypedFunc interface {

14
vendor/github.com/prometheus/client_golang/prometheus/value.go generated vendored
View file

@ -14,11 +14,11 @@
package prometheus
import (
"errors"
"fmt"
"math"
"sort"
"sync/atomic"
"time"
dto "github.com/prometheus/client_model/go"
@ -36,12 +36,14 @@ const (
UntypedValue
)
var errInconsistentCardinality = errors.New("inconsistent label cardinality")
// value is a generic metric for simple values. It implements Metric, Collector,
// Counter, Gauge, and Untyped. Its effective type is determined by
// ValueType. This is a low-level building block used by the library to back the
// implementations of Counter, Gauge, and Untyped.
type value struct {
// valBits contains the bits of the represented float64 value. It has
// valBits containst the bits of the represented float64 value. It has
// to go first in the struct to guarantee alignment for atomic
// operations. http://golang.org/pkg/sync/atomic/#pkg-note-BUG
valBits uint64
@ -78,10 +80,6 @@ func (v *value) Set(val float64) {
atomic.StoreUint64(&v.valBits, math.Float64bits(val))
}
func (v *value) SetToCurrentTime() {
v.Set(float64(time.Now().UnixNano()) / 1e9)
}
func (v *value) Inc() {
v.Add(1)
}
@ -155,8 +153,8 @@ func (v *valueFunc) Write(out *dto.Metric) error {
// the Collect method. NewConstMetric returns an error if the length of
// labelValues is not consistent with the variable labels in Desc.
func NewConstMetric(desc *Desc, valueType ValueType, value float64, labelValues ...string) (Metric, error) {
if err := validateLabelValues(labelValues, len(desc.variableLabels)); err != nil {
return nil, err
if len(desc.variableLabels) != len(labelValues) {
return nil, errInconsistentCardinality
}
return &constMetric{
desc: desc,

43
vendor/github.com/prometheus/client_golang/prometheus/value_test.go generated vendored
View file

@ -1,43 +0,0 @@
package prometheus
import (
"fmt"
"testing"
)
func TestNewConstMetricInvalidLabelValues(t *testing.T) {
testCases := []struct {
desc string
labels Labels
}{
{
desc: "non utf8 label value",
labels: Labels{"a": "\xFF"},
},
{
desc: "not enough label values",
labels: Labels{},
},
{
desc: "too many label values",
labels: Labels{"a": "1", "b": "2"},
},
}
for _, test := range testCases {
metricDesc := NewDesc(
"sample_value",
"sample value",
[]string{"a"},
Labels{},
)
expectPanic(t, func() {
MustNewConstMetric(metricDesc, CounterValue, 0.3, "\xFF")
}, fmt.Sprintf("WithLabelValues: expected panic because: %s", test.desc))
if _, err := NewConstMetric(metricDesc, CounterValue, 0.3, "\xFF"); err == nil {
t.Errorf("NewConstMetric: expected error because: %s", test.desc)
}
}
}

141
vendor/github.com/prometheus/client_golang/prometheus/vec.go generated vendored
View file

@ -20,12 +20,12 @@ import (
"github.com/prometheus/common/model"
)
// metricVec is a Collector to bundle metrics of the same name that differ in
// their label values. metricVec is not used directly (and therefore
// unexported). It is used as a building block for implementations of vectors of
// a given metric type, like GaugeVec, CounterVec, SummaryVec, HistogramVec, and
// UntypedVec.
type metricVec struct {
// MetricVec is a Collector to bundle metrics of the same name that
// differ in their label values. MetricVec is usually not used directly but as a
// building block for implementations of vectors of a given metric
// type. GaugeVec, CounterVec, SummaryVec, and UntypedVec are examples already
// provided in this package.
type MetricVec struct {
mtx sync.RWMutex // Protects the children.
children map[uint64][]metricWithLabelValues
desc *Desc
@ -35,9 +35,10 @@ type metricVec struct {
hashAddByte func(h uint64, b byte) uint64
}
// newMetricVec returns an initialized metricVec.
func newMetricVec(desc *Desc, newMetric func(lvs ...string) Metric) *metricVec {
return &metricVec{
// newMetricVec returns an initialized MetricVec. The concrete value is
// returned for embedding into another struct.
func newMetricVec(desc *Desc, newMetric func(lvs ...string) Metric) *MetricVec {
return &MetricVec{
children: map[uint64][]metricWithLabelValues{},
desc: desc,
newMetric: newMetric,
@ -55,12 +56,12 @@ type metricWithLabelValues struct {
// Describe implements Collector. The length of the returned slice
// is always one.
func (m *metricVec) Describe(ch chan<- *Desc) {
func (m *MetricVec) Describe(ch chan<- *Desc) {
ch <- m.desc
}
// Collect implements Collector.
func (m *metricVec) Collect(ch chan<- Metric) {
func (m *MetricVec) Collect(ch chan<- Metric) {
m.mtx.RLock()
defer m.mtx.RUnlock()
@ -71,7 +72,31 @@ func (m *metricVec) Collect(ch chan<- Metric) {
}
}
func (m *metricVec) getMetricWithLabelValues(lvs ...string) (Metric, error) {
// GetMetricWithLabelValues returns the Metric for the given slice of label
// values (same order as the VariableLabels in Desc). If that combination of
// label values is accessed for the first time, a new Metric is created.
//
// It is possible to call this method without using the returned Metric to only
// create the new Metric but leave it at its start value (e.g. a Summary or
// Histogram without any observations). See also the SummaryVec example.
//
// Keeping the Metric for later use is possible (and should be considered if
// performance is critical), but keep in mind that Reset, DeleteLabelValues and
// Delete can be used to delete the Metric from the MetricVec. In that case, the
// Metric will still exist, but it will not be exported anymore, even if a
// Metric with the same label values is created later. See also the CounterVec
// example.
//
// An error is returned if the number of label values is not the same as the
// number of VariableLabels in Desc.
//
// Note that for more than one label value, this method is prone to mistakes
// caused by an incorrect order of arguments. Consider GetMetricWith(Labels) as
// an alternative to avoid that type of mistake. For higher label numbers, the
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// See also the GaugeVec example.
func (m *MetricVec) GetMetricWithLabelValues(lvs ...string) (Metric, error) {
h, err := m.hashLabelValues(lvs)
if err != nil {
return nil, err
@ -80,7 +105,19 @@ func (m *metricVec) getMetricWithLabelValues(lvs ...string) (Metric, error) {
return m.getOrCreateMetricWithLabelValues(h, lvs), nil
}
func (m *metricVec) getMetricWith(labels Labels) (Metric, error) {
// GetMetricWith returns the Metric for the given Labels map (the label names
// must match those of the VariableLabels in Desc). If that label map is
// accessed for the first time, a new Metric is created. Implications of
// creating a Metric without using it and keeping the Metric for later use are
// the same as for GetMetricWithLabelValues.
//
// An error is returned if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc.
//
// This method is used for the same purpose as
// GetMetricWithLabelValues(...string). See there for pros and cons of the two
// methods.
func (m *MetricVec) GetMetricWith(labels Labels) (Metric, error) {
h, err := m.hashLabels(labels)
if err != nil {
return nil, err
@ -89,16 +126,22 @@ func (m *metricVec) getMetricWith(labels Labels) (Metric, error) {
return m.getOrCreateMetricWithLabels(h, labels), nil
}
func (m *metricVec) withLabelValues(lvs ...string) Metric {
metric, err := m.getMetricWithLabelValues(lvs...)
// WithLabelValues works as GetMetricWithLabelValues, but panics if an error
// occurs. The method allows neat syntax like:
// httpReqs.WithLabelValues("404", "POST").Inc()
func (m *MetricVec) WithLabelValues(lvs ...string) Metric {
metric, err := m.GetMetricWithLabelValues(lvs...)
if err != nil {
panic(err)
}
return metric
}
func (m *metricVec) with(labels Labels) Metric {
metric, err := m.getMetricWith(labels)
// With works as GetMetricWith, but panics if an error occurs. The method allows
// neat syntax like:
// httpReqs.With(Labels{"status":"404", "method":"POST"}).Inc()
func (m *MetricVec) With(labels Labels) Metric {
metric, err := m.GetMetricWith(labels)
if err != nil {
panic(err)
}
@ -111,7 +154,7 @@ func (m *metricVec) with(labels Labels) Metric {
//
// It is not an error if the number of label values is not the same as the
// number of VariableLabels in Desc. However, such inconsistent label count can
// never match an actual metric, so the method will always return false in that
// never match an actual Metric, so the method will always return false in that
// case.
//
// Note that for more than one label value, this method is prone to mistakes
@ -120,7 +163,7 @@ func (m *metricVec) with(labels Labels) Metric {
// latter has a much more readable (albeit more verbose) syntax, but it comes
// with a performance overhead (for creating and processing the Labels map).
// See also the CounterVec example.
func (m *metricVec) DeleteLabelValues(lvs ...string) bool {
func (m *MetricVec) DeleteLabelValues(lvs ...string) bool {
m.mtx.Lock()
defer m.mtx.Unlock()
@ -135,13 +178,13 @@ func (m *metricVec) DeleteLabelValues(lvs ...string) bool {
// passed in as labels. It returns true if a metric was deleted.
//
// It is not an error if the number and names of the Labels are inconsistent
// with those of the VariableLabels in Desc. However, such inconsistent Labels
// can never match an actual metric, so the method will always return false in
// that case.
// with those of the VariableLabels in the Desc of the MetricVec. However, such
// inconsistent Labels can never match an actual Metric, so the method will
// always return false in that case.
//
// This method is used for the same purpose as DeleteLabelValues(...string). See
// there for pros and cons of the two methods.
func (m *metricVec) Delete(labels Labels) bool {
func (m *MetricVec) Delete(labels Labels) bool {
m.mtx.Lock()
defer m.mtx.Unlock()
@ -156,7 +199,7 @@ func (m *metricVec) Delete(labels Labels) bool {
// deleteByHashWithLabelValues removes the metric from the hash bucket h. If
// there are multiple matches in the bucket, use lvs to select a metric and
// remove only that metric.
func (m *metricVec) deleteByHashWithLabelValues(h uint64, lvs []string) bool {
func (m *MetricVec) deleteByHashWithLabelValues(h uint64, lvs []string) bool {
metrics, ok := m.children[h]
if !ok {
return false
@ -178,7 +221,7 @@ func (m *metricVec) deleteByHashWithLabelValues(h uint64, lvs []string) bool {
// deleteByHashWithLabels removes the metric from the hash bucket h. If there
// are multiple matches in the bucket, use lvs to select a metric and remove
// only that metric.
func (m *metricVec) deleteByHashWithLabels(h uint64, labels Labels) bool {
func (m *MetricVec) deleteByHashWithLabels(h uint64, labels Labels) bool {
metrics, ok := m.children[h]
if !ok {
return false
@ -197,7 +240,7 @@ func (m *metricVec) deleteByHashWithLabels(h uint64, labels Labels) bool {
}
// Reset deletes all metrics in this vector.
func (m *metricVec) Reset() {
func (m *MetricVec) Reset() {
m.mtx.Lock()
defer m.mtx.Unlock()
@ -206,11 +249,10 @@ func (m *metricVec) Reset() {
}
}
func (m *metricVec) hashLabelValues(vals []string) (uint64, error) {
if err := validateLabelValues(vals, len(m.desc.variableLabels)); err != nil {
return 0, err
func (m *MetricVec) hashLabelValues(vals []string) (uint64, error) {
if len(vals) != len(m.desc.variableLabels) {
return 0, errInconsistentCardinality
}
h := hashNew()
for _, val := range vals {
h = m.hashAdd(h, val)
@ -219,11 +261,10 @@ func (m *metricVec) hashLabelValues(vals []string) (uint64, error) {
return h, nil
}
func (m *metricVec) hashLabels(labels Labels) (uint64, error) {
if err := validateValuesInLabels(labels, len(m.desc.variableLabels)); err != nil {
return 0, err
func (m *MetricVec) hashLabels(labels Labels) (uint64, error) {
if len(labels) != len(m.desc.variableLabels) {
return 0, errInconsistentCardinality
}
h := hashNew()
for _, label := range m.desc.variableLabels {
val, ok := labels[label]
@ -240,9 +281,9 @@ func (m *metricVec) hashLabels(labels Labels) (uint64, error) {
// or creates it and returns the new one.
//
// This function holds the mutex.
func (m *metricVec) getOrCreateMetricWithLabelValues(hash uint64, lvs []string) Metric {
func (m *MetricVec) getOrCreateMetricWithLabelValues(hash uint64, lvs []string) Metric {
m.mtx.RLock()
metric, ok := m.getMetricWithHashAndLabelValues(hash, lvs)
metric, ok := m.getMetricWithLabelValues(hash, lvs)
m.mtx.RUnlock()
if ok {
return metric
@ -250,7 +291,7 @@ func (m *metricVec) getOrCreateMetricWithLabelValues(hash uint64, lvs []string)
m.mtx.Lock()
defer m.mtx.Unlock()
metric, ok = m.getMetricWithHashAndLabelValues(hash, lvs)
metric, ok = m.getMetricWithLabelValues(hash, lvs)
if !ok {
// Copy to avoid allocation in case wo don't go down this code path.
copiedLVs := make([]string, len(lvs))
@ -265,9 +306,9 @@ func (m *metricVec) getOrCreateMetricWithLabelValues(hash uint64, lvs []string)
// or creates it and returns the new one.
//
// This function holds the mutex.
func (m *metricVec) getOrCreateMetricWithLabels(hash uint64, labels Labels) Metric {
func (m *MetricVec) getOrCreateMetricWithLabels(hash uint64, labels Labels) Metric {
m.mtx.RLock()
metric, ok := m.getMetricWithHashAndLabels(hash, labels)
metric, ok := m.getMetricWithLabels(hash, labels)
m.mtx.RUnlock()
if ok {
return metric
@ -275,7 +316,7 @@ func (m *metricVec) getOrCreateMetricWithLabels(hash uint64, labels Labels) Metr
m.mtx.Lock()
defer m.mtx.Unlock()
metric, ok = m.getMetricWithHashAndLabels(hash, labels)
metric, ok = m.getMetricWithLabels(hash, labels)
if !ok {
lvs := m.extractLabelValues(labels)
metric = m.newMetric(lvs...)
@ -284,9 +325,9 @@ func (m *metricVec) getOrCreateMetricWithLabels(hash uint64, labels Labels) Metr
return metric
}
// getMetricWithHashAndLabelValues gets a metric while handling possible
// collisions in the hash space. Must be called while holding the read mutex.
func (m *metricVec) getMetricWithHashAndLabelValues(h uint64, lvs []string) (Metric, bool) {
// getMetricWithLabelValues gets a metric while handling possible collisions in
// the hash space. Must be called while holding read mutex.
func (m *MetricVec) getMetricWithLabelValues(h uint64, lvs []string) (Metric, bool) {
metrics, ok := m.children[h]
if ok {
if i := m.findMetricWithLabelValues(metrics, lvs); i < len(metrics) {
@ -296,9 +337,9 @@ func (m *metricVec) getMetricWithHashAndLabelValues(h uint64, lvs []string) (Met
return nil, false
}
// getMetricWithHashAndLabels gets a metric while handling possible collisions in
// getMetricWithLabels gets a metric while handling possible collisions in
// the hash space. Must be called while holding read mutex.
func (m *metricVec) getMetricWithHashAndLabels(h uint64, labels Labels) (Metric, bool) {
func (m *MetricVec) getMetricWithLabels(h uint64, labels Labels) (Metric, bool) {
metrics, ok := m.children[h]
if ok {
if i := m.findMetricWithLabels(metrics, labels); i < len(metrics) {
@ -310,7 +351,7 @@ func (m *metricVec) getMetricWithHashAndLabels(h uint64, labels Labels) (Metric,
// findMetricWithLabelValues returns the index of the matching metric or
// len(metrics) if not found.
func (m *metricVec) findMetricWithLabelValues(metrics []metricWithLabelValues, lvs []string) int {
func (m *MetricVec) findMetricWithLabelValues(metrics []metricWithLabelValues, lvs []string) int {
for i, metric := range metrics {
if m.matchLabelValues(metric.values, lvs) {
return i
@ -321,7 +362,7 @@ func (m *metricVec) findMetricWithLabelValues(metrics []metricWithLabelValues, l
// findMetricWithLabels returns the index of the matching metric or len(metrics)
// if not found.
func (m *metricVec) findMetricWithLabels(metrics []metricWithLabelValues, labels Labels) int {
func (m *MetricVec) findMetricWithLabels(metrics []metricWithLabelValues, labels Labels) int {
for i, metric := range metrics {
if m.matchLabels(metric.values, labels) {
return i
@ -330,7 +371,7 @@ func (m *metricVec) findMetricWithLabels(metrics []metricWithLabelValues, labels
return len(metrics)
}
func (m *metricVec) matchLabelValues(values []string, lvs []string) bool {
func (m *MetricVec) matchLabelValues(values []string, lvs []string) bool {
if len(values) != len(lvs) {
return false
}
@ -342,7 +383,7 @@ func (m *metricVec) matchLabelValues(values []string, lvs []string) bool {
return true
}
func (m *metricVec) matchLabels(values []string, labels Labels) bool {
func (m *MetricVec) matchLabels(values []string, labels Labels) bool {
if len(labels) != len(values) {
return false
}
@ -354,7 +395,7 @@ func (m *metricVec) matchLabels(values []string, labels Labels) bool {
return true
}
func (m *metricVec) extractLabelValues(labels Labels) []string {
func (m *MetricVec) extractLabelValues(labels Labels) []string {
labelValues := make([]string, len(labels))
for i, k := range m.desc.variableLabels {
labelValues[i] = labels[k]

54
vendor/github.com/prometheus/client_golang/prometheus/vec_test.go generated vendored
View file

@ -21,8 +21,8 @@ import (
)
func TestDelete(t *testing.T) {
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
@ -32,8 +32,8 @@ func TestDelete(t *testing.T) {
}
func TestDeleteWithCollisions(t *testing.T) {
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
@ -44,12 +44,12 @@ func TestDeleteWithCollisions(t *testing.T) {
testDelete(t, vec)
}
func testDelete(t *testing.T, vec *GaugeVec) {
func testDelete(t *testing.T, vec *UntypedVec) {
if got, want := vec.Delete(Labels{"l1": "v1", "l2": "v2"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Gauge).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
if got, want := vec.Delete(Labels{"l1": "v1", "l2": "v2"}), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
@ -57,7 +57,7 @@ func testDelete(t *testing.T, vec *GaugeVec) {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Gauge).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
if got, want := vec.Delete(Labels{"l2": "v2", "l1": "v1"}), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
@ -65,7 +65,7 @@ func testDelete(t *testing.T, vec *GaugeVec) {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Gauge).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
if got, want := vec.Delete(Labels{"l2": "v1", "l1": "v2"}), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
@ -75,8 +75,8 @@ func testDelete(t *testing.T, vec *GaugeVec) {
}
func TestDeleteLabelValues(t *testing.T) {
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
@ -86,8 +86,8 @@ func TestDeleteLabelValues(t *testing.T) {
}
func TestDeleteLabelValuesWithCollisions(t *testing.T) {
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
@ -98,13 +98,13 @@ func TestDeleteLabelValuesWithCollisions(t *testing.T) {
testDeleteLabelValues(t, vec)
}
func testDeleteLabelValues(t *testing.T, vec *GaugeVec) {
func testDeleteLabelValues(t *testing.T, vec *UntypedVec) {
if got, want := vec.DeleteLabelValues("v1", "v2"), false; got != want {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Gauge).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v3"}).(Gauge).Set(42) // Add junk data for collision.
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v3"}).(Untyped).Set(42) // Add junk data for collision.
if got, want := vec.DeleteLabelValues("v1", "v2"), true; got != want {
t.Errorf("got %v, want %v", got, want)
}
@ -115,7 +115,7 @@ func testDeleteLabelValues(t *testing.T, vec *GaugeVec) {
t.Errorf("got %v, want %v", got, want)
}
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Gauge).Set(42)
vec.With(Labels{"l1": "v1", "l2": "v2"}).(Untyped).Set(42)
// Delete out of order.
if got, want := vec.DeleteLabelValues("v2", "v1"), false; got != want {
t.Errorf("got %v, want %v", got, want)
@ -126,8 +126,8 @@ func testDeleteLabelValues(t *testing.T, vec *GaugeVec) {
}
func TestMetricVec(t *testing.T) {
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
@ -137,8 +137,8 @@ func TestMetricVec(t *testing.T) {
}
func TestMetricVecWithCollisions(t *testing.T) {
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},
@ -149,7 +149,7 @@ func TestMetricVecWithCollisions(t *testing.T) {
testMetricVec(t, vec)
}
func testMetricVec(t *testing.T, vec *GaugeVec) {
func testMetricVec(t *testing.T, vec *UntypedVec) {
vec.Reset() // Actually test Reset now!
var pair [2]string
@ -162,7 +162,7 @@ func testMetricVec(t *testing.T, vec *GaugeVec) {
vec.WithLabelValues(pair[0], pair[1]).Inc()
expected[[2]string{"v1", "v2"}]++
vec.WithLabelValues("v1", "v2").(Gauge).Inc()
vec.WithLabelValues("v1", "v2").(Untyped).Inc()
}
var total int
@ -175,7 +175,7 @@ func testMetricVec(t *testing.T, vec *GaugeVec) {
if err := metric.metric.Write(&metricOut); err != nil {
t.Fatal(err)
}
actual := *metricOut.Gauge.Value
actual := *metricOut.Untyped.Value
var actualPair [2]string
for i, label := range metricOut.Label {
@ -241,8 +241,8 @@ func TestCounterVecEndToEndWithCollision(t *testing.T) {
func BenchmarkMetricVecWithLabelValuesBasic(b *testing.B) {
benchmarkMetricVecWithLabelValues(b, map[string][]string{
"l1": {"onevalue"},
"l2": {"twovalue"},
"l1": []string{"onevalue"},
"l2": []string{"twovalue"},
})
}
@ -290,8 +290,8 @@ func benchmarkMetricVecWithLabelValues(b *testing.B, labels map[string][]string)
}
values := make([]string, len(labels)) // Value cache for permutations.
vec := NewGaugeVec(
GaugeOpts{
vec := NewUntypedVec(
UntypedOpts{
Name: "test",
Help: "helpless",
},

94
vendor/github.com/spf13/cobra/cobra/README.md generated vendored Normal file
View file

@ -0,0 +1,94 @@
# Cobra Generator
Cobra provides its own program that will create your application and add any
commands you want. It's the easiest way to incorporate Cobra into your application.
In order to use the cobra command, compile it using the following command:
go get github.com/spf13/cobra/cobra
This will create the cobra executable under your `$GOPATH/bin` directory.
### cobra init
The `cobra init [app]` command will create your initial application code
for you. It is a very powerful application that will populate your program with
the right structure so you can immediately enjoy all the benefits of Cobra. It
will also automatically apply the license you specify to your application.
Cobra init is pretty smart. You can provide it a full path, or simply a path
similar to what is expected in the import.
```
cobra init github.com/spf13/newApp
```
### cobra add
Once an application is initialized, Cobra can create additional commands for you.
Let's say you created an app and you wanted the following commands for it:
* app serve
* app config
* app config create
In your project directory (where your main.go file is) you would run the following:
```
cobra add serve
cobra add config
cobra add create -p 'configCmd'
```
*Note: Use camelCase (not snake_case/snake-case) for command names.
Otherwise, you will encounter errors.
For example, `cobra add add-user` is incorrect, but `cobra add addUser` is valid.*
Once you have run these three commands you would have an app structure similar to
the following:
```
▾ app/
▾ cmd/
serve.go
config.go
create.go
main.go
```
At this point you can run `go run main.go` and it would run your app. `go run
main.go serve`, `go run main.go config`, `go run main.go config create` along
with `go run main.go help serve`, etc. would all work.
Obviously you haven't added your own code to these yet. The commands are ready
for you to give them their tasks. Have fun!
### Configuring the cobra generator
The Cobra generator will be easier to use if you provide a simple configuration
file which will help you eliminate providing a bunch of repeated information in
flags over and over.
An example ~/.cobra.yaml file:
```yaml
author: Steve Francia <spf@spf13.com>
license: MIT
```
You can specify no license by setting `license` to `none` or you can specify
a custom license:
```yaml
license:
header: This file is part of {{ .appName }}.
text: |
{{ .copyright }}
This is my license. There are many like it, but this one is mine.
My license is my best friend. It is my life. I must master it as I must
master my life.
```
You can also use built-in licenses. For example, **GPLv2**, **GPLv3**, **LGPL**,
**AGPL**, **MIT**, **2-Clause BSD** or **3-Clause BSD**.

179
vendor/github.com/spf13/cobra/cobra/cmd/add.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"os"
"path/filepath"
"unicode"
"github.com/spf13/cobra"
)
func init() {
addCmd.Flags().StringVarP(&packageName, "package", "t", "", "target package name (e.g. github.com/spf13/hugo)")
addCmd.Flags().StringVarP(&parentName, "parent", "p", "RootCmd", "variable name of parent command for this command")
}
var packageName, parentName string
var addCmd = &cobra.Command{
Use: "add [command name]",
Aliases: []string{"command"},
Short: "Add a command to a Cobra Application",
Long: `Add (cobra add) will create a new command, with a license and
the appropriate structure for a Cobra-based CLI application,
and register it to its parent (default RootCmd).
If you want your command to be public, pass in the command name
with an initial uppercase letter.
Example: cobra add server -> resulting in a new cmd/server.go`,
Run: func(cmd *cobra.Command, args []string) {
if len(args) < 1 {
er("add needs a name for the command")
}
var project *Project
if packageName != "" {
project = NewProject(packageName)
} else {
wd, err := os.Getwd()
if err != nil {
er(err)
}
project = NewProjectFromPath(wd)
}
cmdName := validateCmdName(args[0])
cmdPath := filepath.Join(project.CmdPath(), cmdName+".go")
createCmdFile(project.License(), cmdPath, cmdName)
fmt.Fprintln(cmd.OutOrStdout(), cmdName, "created at", cmdPath)
},
}
// validateCmdName returns source without any dashes and underscore.
// If there will be dash or underscore, next letter will be uppered.
// It supports only ASCII (1-byte character) strings.
// https://github.com/spf13/cobra/issues/269
func validateCmdName(source string) string {
i := 0
l := len(source)
// The output is initialized on demand, then first dash or underscore
// occurs.
var output string
for i < l {
if source[i] == '-' || source[i] == '_' {
if output == "" {
output = source[:i]
}
// If it's last rune and it's dash or underscore,
// don't add it output and break the loop.
if i == l-1 {
break
}
// If next character is dash or underscore,
// just skip the current character.
if source[i+1] == '-' || source[i+1] == '_' {
i++
continue
}
// If the current character is dash or underscore,
// upper next letter and add to output.
output += string(unicode.ToUpper(rune(source[i+1])))
// We know, what source[i] is dash or underscore and source[i+1] is
// uppered character, so make i = i+2.
i += 2
continue
}
// If the current character isn't dash or underscore,
// just add it.
if output != "" {
output += string(source[i])
}
i++
}
if output == "" {
return source // source is initially valid name.
}
return output
}
func createCmdFile(license License, path, cmdName string) {
template := `{{comment .copyright}}
{{if .license}}{{comment .license}}{{end}}
package {{.cmdPackage}}
import (
"fmt"
"github.com/spf13/cobra"
)
// {{.cmdName}}Cmd represents the {{.cmdName}} command
var {{.cmdName}}Cmd = &cobra.Command{
Use: "{{.cmdName}}",
Short: "A brief description of your command",
Long: ` + "`" + `A longer description that spans multiple lines and likely contains examples
and usage of using your command. For example:
Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
to quickly create a Cobra application.` + "`" + `,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("{{.cmdName}} called")
},
}
func init() {
{{.parentName}}.AddCommand({{.cmdName}}Cmd)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// {{.cmdName}}Cmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
// {{.cmdName}}Cmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}
`
data := make(map[string]interface{})
data["copyright"] = copyrightLine()
data["license"] = license.Header
data["cmdPackage"] = filepath.Base(filepath.Dir(path)) // last dir of path
data["parentName"] = parentName
data["cmdName"] = cmdName
cmdScript, err := executeTemplate(template, data)
if err != nil {
er(err)
}
err = writeStringToFile(path, cmdScript)
if err != nil {
er(err)
}
}

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vendor/github.com/spf13/cobra/cobra/cmd/add_test.go generated vendored Normal file
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package cmd
import (
"errors"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/spf13/viper"
)
// TestGoldenAddCmd initializes the project "github.com/spf13/testproject"
// in GOPATH, adds "test" command
// and compares the content of all files in cmd directory of testproject
// with appropriate golden files.
// Use -update to update existing golden files.
func TestGoldenAddCmd(t *testing.T) {
projectName := "github.com/spf13/testproject"
project := NewProject(projectName)
defer os.RemoveAll(project.AbsPath())
viper.Set("author", "NAME HERE <EMAIL ADDRESS>")
viper.Set("license", "apache")
viper.Set("year", 2017)
defer viper.Set("author", nil)
defer viper.Set("license", nil)
defer viper.Set("year", nil)
// Initialize the project first.
initializeProject(project)
// Then add the "test" command.
cmdName := "test"
cmdPath := filepath.Join(project.CmdPath(), cmdName+".go")
createCmdFile(project.License(), cmdPath, cmdName)
expectedFiles := []string{".", "root.go", "test.go"}
gotFiles := []string{}
// Check project file hierarchy and compare the content of every single file
// with appropriate golden file.
err := filepath.Walk(project.CmdPath(), func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
// Make path relative to project.CmdPath().
// E.g. path = "/home/user/go/src/github.com/spf13/testproject/cmd/root.go"
// then it returns just "root.go".
relPath, err := filepath.Rel(project.CmdPath(), path)
if err != nil {
return err
}
relPath = filepath.ToSlash(relPath)
gotFiles = append(gotFiles, relPath)
goldenPath := filepath.Join("testdata", filepath.Base(path)+".golden")
switch relPath {
// Known directories.
case ".":
return nil
// Known files.
case "root.go", "test.go":
if *update {
got, err := ioutil.ReadFile(path)
if err != nil {
return err
}
ioutil.WriteFile(goldenPath, got, 0644)
}
return compareFiles(path, goldenPath)
}
// Unknown file.
return errors.New("unknown file: " + path)
})
if err != nil {
t.Fatal(err)
}
// Check if some files lack.
if err := checkLackFiles(expectedFiles, gotFiles); err != nil {
t.Fatal(err)
}
}
func TestValidateCmdName(t *testing.T) {
testCases := []struct {
input string
expected string
}{
{"cmdName", "cmdName"},
{"cmd_name", "cmdName"},
{"cmd-name", "cmdName"},
{"cmd______Name", "cmdName"},
{"cmd------Name", "cmdName"},
{"cmd______name", "cmdName"},
{"cmd------name", "cmdName"},
{"cmdName-----", "cmdName"},
{"cmdname-", "cmdname"},
}
for _, testCase := range testCases {
got := validateCmdName(testCase.input)
if testCase.expected != got {
t.Errorf("Expected %q, got %q", testCase.expected, got)
}
}
}

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vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go generated vendored Normal file
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package cmd
import (
"bytes"
"errors"
"flag"
"fmt"
"io/ioutil"
"os/exec"
)
var update = flag.Bool("update", false, "update .golden files")
func init() {
// Mute commands.
addCmd.SetOutput(new(bytes.Buffer))
initCmd.SetOutput(new(bytes.Buffer))
}
// compareFiles compares the content of files with pathA and pathB.
// If contents are equal, it returns nil.
// If not, it returns which files are not equal
// and diff (if system has diff command) between these files.
func compareFiles(pathA, pathB string) error {
contentA, err := ioutil.ReadFile(pathA)
if err != nil {
return err
}
contentB, err := ioutil.ReadFile(pathB)
if err != nil {
return err
}
if !bytes.Equal(contentA, contentB) {
output := new(bytes.Buffer)
output.WriteString(fmt.Sprintf("%q and %q are not equal!\n\n", pathA, pathB))
diffPath, err := exec.LookPath("diff")
if err != nil {
// Don't execute diff if it can't be found.
return nil
}
diffCmd := exec.Command(diffPath, "-u", pathA, pathB)
diffCmd.Stdout = output
diffCmd.Stderr = output
output.WriteString("$ diff -u " + pathA + " " + pathB + "\n")
if err := diffCmd.Run(); err != nil {
output.WriteString("\n" + err.Error())
}
return errors.New(output.String())
}
return nil
}
// checkLackFiles checks if all elements of expected are in got.
func checkLackFiles(expected, got []string) error {
lacks := make([]string, 0, len(expected))
for _, ev := range expected {
if !stringInStringSlice(ev, got) {
lacks = append(lacks, ev)
}
}
if len(lacks) > 0 {
return fmt.Errorf("Lack %v file(s): %v", len(lacks), lacks)
}
return nil
}
// stringInStringSlice checks if s is an element of slice.
func stringInStringSlice(s string, slice []string) bool {
for _, v := range slice {
if s == v {
return true
}
}
return false
}

171
vendor/github.com/spf13/cobra/cobra/cmd/helpers.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"bytes"
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
"text/template"
)
var cmdDirs = [...]string{"cmd", "cmds", "command", "commands"}
var srcPaths []string
func init() {
// Initialize srcPaths.
envGoPath := os.Getenv("GOPATH")
goPaths := filepath.SplitList(envGoPath)
if len(goPaths) == 0 {
// Adapted from https://github.com/Masterminds/glide/pull/798/files.
// As of Go 1.8 the GOPATH is no longer required to be set. Instead there
// is a default value. If there is no GOPATH check for the default value.
// Note, checking the GOPATH first to avoid invoking the go toolchain if
// possible.
goExecutable := os.Getenv("COBRA_GO_EXECUTABLE")
if len(goExecutable) <= 0 {
goExecutable = "go"
}
out, err := exec.Command(goExecutable, "env", "GOPATH").Output()
if err != nil {
er(err)
}
toolchainGoPath := strings.TrimSpace(string(out))
goPaths = filepath.SplitList(toolchainGoPath)
if len(goPaths) == 0 {
er("$GOPATH is not set")
}
}
srcPaths = make([]string, 0, len(goPaths))
for _, goPath := range goPaths {
srcPaths = append(srcPaths, filepath.Join(goPath, "src"))
}
}
func er(msg interface{}) {
fmt.Println("Error:", msg)
os.Exit(1)
}
// isEmpty checks if a given path is empty.
// Hidden files in path are ignored.
func isEmpty(path string) bool {
fi, err := os.Stat(path)
if err != nil {
er(err)
}
if !fi.IsDir() {
return fi.Size() == 0
}
f, err := os.Open(path)
if err != nil {
er(err)
}
defer f.Close()
names, err := f.Readdirnames(-1)
if err != nil && err != io.EOF {
er(err)
}
for _, name := range names {
if len(name) > 0 && name[0] != '.' {
return false
}
}
return true
}
// exists checks if a file or directory exists.
func exists(path string) bool {
if path == "" {
return false
}
_, err := os.Stat(path)
if err == nil {
return true
}
if !os.IsNotExist(err) {
er(err)
}
return false
}
func executeTemplate(tmplStr string, data interface{}) (string, error) {
tmpl, err := template.New("").Funcs(template.FuncMap{"comment": commentifyString}).Parse(tmplStr)
if err != nil {
return "", err
}
buf := new(bytes.Buffer)
err = tmpl.Execute(buf, data)
return buf.String(), err
}
func writeStringToFile(path string, s string) error {
return writeToFile(path, strings.NewReader(s))
}
// writeToFile writes r to file with path only
// if file/directory on given path doesn't exist.
// If file/directory exists on given path, then
// it terminates app and prints an appropriate error.
func writeToFile(path string, r io.Reader) error {
if exists(path) {
return fmt.Errorf("%v already exists", path)
}
dir := filepath.Dir(path)
if dir != "" {
if err := os.MkdirAll(dir, 0777); err != nil {
return err
}
}
file, err := os.Create(path)
if err != nil {
return err
}
defer file.Close()
_, err = io.Copy(file, r)
return err
}
// commentfyString comments every line of in.
func commentifyString(in string) string {
var newlines []string
lines := strings.Split(in, "\n")
for _, line := range lines {
if strings.HasPrefix(line, "//") {
newlines = append(newlines, line)
} else {
if line == "" {
newlines = append(newlines, "//")
} else {
newlines = append(newlines, "// "+line)
}
}
}
return strings.Join(newlines, "\n")
}

234
vendor/github.com/spf13/cobra/cobra/cmd/init.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"os"
"path"
"path/filepath"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var initCmd = &cobra.Command{
Use: "init [name]",
Aliases: []string{"initialize", "initialise", "create"},
Short: "Initialize a Cobra Application",
Long: `Initialize (cobra init) will create a new application, with a license
and the appropriate structure for a Cobra-based CLI application.
* If a name is provided, it will be created in the current directory;
* If no name is provided, the current directory will be assumed;
* If a relative path is provided, it will be created inside $GOPATH
(e.g. github.com/spf13/hugo);
* If an absolute path is provided, it will be created;
* If the directory already exists but is empty, it will be used.
Init will not use an existing directory with contents.`,
Run: func(cmd *cobra.Command, args []string) {
wd, err := os.Getwd()
if err != nil {
er(err)
}
var project *Project
if len(args) == 0 {
project = NewProjectFromPath(wd)
} else if len(args) == 1 {
arg := args[0]
if arg[0] == '.' {
arg = filepath.Join(wd, arg)
}
if filepath.IsAbs(arg) {
project = NewProjectFromPath(arg)
} else {
project = NewProject(arg)
}
} else {
er("please provide only one argument")
}
initializeProject(project)
fmt.Fprintln(cmd.OutOrStdout(), `Your Cobra application is ready at
`+project.AbsPath()+`.
Give it a try by going there and running `+"`go run main.go`."+`
Add commands to it by running `+"`cobra add [cmdname]`.")
},
}
func initializeProject(project *Project) {
if !exists(project.AbsPath()) { // If path doesn't yet exist, create it
err := os.MkdirAll(project.AbsPath(), os.ModePerm)
if err != nil {
er(err)
}
} else if !isEmpty(project.AbsPath()) { // If path exists and is not empty don't use it
er("Cobra will not create a new project in a non empty directory: " + project.AbsPath())
}
// We have a directory and it's empty. Time to initialize it.
createLicenseFile(project.License(), project.AbsPath())
createMainFile(project)
createRootCmdFile(project)
}
func createLicenseFile(license License, path string) {
data := make(map[string]interface{})
data["copyright"] = copyrightLine()
// Generate license template from text and data.
text, err := executeTemplate(license.Text, data)
if err != nil {
er(err)
}
// Write license text to LICENSE file.
err = writeStringToFile(filepath.Join(path, "LICENSE"), text)
if err != nil {
er(err)
}
}
func createMainFile(project *Project) {
mainTemplate := `{{ comment .copyright }}
{{if .license}}{{ comment .license }}{{end}}
package main
import "{{ .importpath }}"
func main() {
cmd.Execute()
}
`
data := make(map[string]interface{})
data["copyright"] = copyrightLine()
data["license"] = project.License().Header
data["importpath"] = path.Join(project.Name(), filepath.Base(project.CmdPath()))
mainScript, err := executeTemplate(mainTemplate, data)
if err != nil {
er(err)
}
err = writeStringToFile(filepath.Join(project.AbsPath(), "main.go"), mainScript)
if err != nil {
er(err)
}
}
func createRootCmdFile(project *Project) {
template := `{{comment .copyright}}
{{if .license}}{{comment .license}}{{end}}
package cmd
import (
"fmt"
"os"
{{if .viper}}
homedir "github.com/mitchellh/go-homedir"{{end}}
"github.com/spf13/cobra"{{if .viper}}
"github.com/spf13/viper"{{end}}
){{if .viper}}
var cfgFile string{{end}}
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "{{.appName}}",
Short: "A brief description of your application",
Long: ` + "`" + `A longer description that spans multiple lines and likely contains
examples and usage of using your application. For example:
Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
to quickly create a Cobra application.` + "`" + `,
// Uncomment the following line if your bare application
// has an action associated with it:
// Run: func(cmd *cobra.Command, args []string) { },
}
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func init() { {{if .viper}}
cobra.OnInitialize(initConfig)
{{end}}
// Here you will define your flags and configuration settings.
// Cobra supports persistent flags, which, if defined here,
// will be global for your application.{{ if .viper }}
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.{{ .appName }}.yaml)"){{ else }}
// RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.{{ .appName }}.yaml)"){{ end }}
// Cobra also supports local flags, which will only run
// when this action is called directly.
RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}{{ if .viper }}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// Search config in home directory with name ".{{ .appName }}" (without extension).
viper.AddConfigPath(home)
viper.SetConfigName(".{{ .appName }}")
}
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
fmt.Println("Using config file:", viper.ConfigFileUsed())
}
}{{ end }}
`
data := make(map[string]interface{})
data["copyright"] = copyrightLine()
data["viper"] = viper.GetBool("useViper")
data["license"] = project.License().Header
data["appName"] = path.Base(project.Name())
rootCmdScript, err := executeTemplate(template, data)
if err != nil {
er(err)
}
err = writeStringToFile(filepath.Join(project.CmdPath(), "root.go"), rootCmdScript)
if err != nil {
er(err)
}
}

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vendor/github.com/spf13/cobra/cobra/cmd/init_test.go generated vendored Normal file
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package cmd
import (
"errors"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/spf13/viper"
)
// TestGoldenInitCmd initializes the project "github.com/spf13/testproject"
// in GOPATH and compares the content of files in initialized project with
// appropriate golden files ("testdata/*.golden").
// Use -update to update existing golden files.
func TestGoldenInitCmd(t *testing.T) {
projectName := "github.com/spf13/testproject"
project := NewProject(projectName)
defer os.RemoveAll(project.AbsPath())
viper.Set("author", "NAME HERE <EMAIL ADDRESS>")
viper.Set("license", "apache")
viper.Set("year", 2017)
defer viper.Set("author", nil)
defer viper.Set("license", nil)
defer viper.Set("year", nil)
os.Args = []string{"cobra", "init", projectName}
if err := rootCmd.Execute(); err != nil {
t.Fatal("Error by execution:", err)
}
expectedFiles := []string{".", "cmd", "LICENSE", "main.go", "cmd/root.go"}
gotFiles := []string{}
// Check project file hierarchy and compare the content of every single file
// with appropriate golden file.
err := filepath.Walk(project.AbsPath(), func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
// Make path relative to project.AbsPath().
// E.g. path = "/home/user/go/src/github.com/spf13/testproject/cmd/root.go"
// then it returns just "cmd/root.go".
relPath, err := filepath.Rel(project.AbsPath(), path)
if err != nil {
return err
}
relPath = filepath.ToSlash(relPath)
gotFiles = append(gotFiles, relPath)
goldenPath := filepath.Join("testdata", filepath.Base(path)+".golden")
switch relPath {
// Known directories.
case ".", "cmd":
return nil
// Known files.
case "LICENSE", "main.go", "cmd/root.go":
if *update {
got, err := ioutil.ReadFile(path)
if err != nil {
return err
}
if err := ioutil.WriteFile(goldenPath, got, 0644); err != nil {
t.Fatal("Error while updating file:", err)
}
}
return compareFiles(path, goldenPath)
}
// Unknown file.
return errors.New("unknown file: " + path)
})
if err != nil {
t.Fatal(err)
}
// Check if some files lack.
if err := checkLackFiles(expectedFiles, gotFiles); err != nil {
t.Fatal(err)
}
}

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vendor/github.com/spf13/cobra/cobra/cmd/license_agpl.go generated vendored Normal file
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package cmd
func initAgpl() {
Licenses["agpl"] = License{
Name: "GNU Affero General Public License",
PossibleMatches: []string{"agpl", "affero gpl", "gnu agpl"},
Header: `
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.`,
Text: ` GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU Affero General Public License is a free, copyleft license for
software and other kinds of works, specifically designed to ensure
cooperation with the community in the case of network server software.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
our General Public Licenses are intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
Developers that use our General Public Licenses protect your rights
with two steps: (1) assert copyright on the software, and (2) offer
you this License which gives you legal permission to copy, distribute
and/or modify the software.
A secondary benefit of defending all users' freedom is that
improvements made in alternate versions of the program, if they
receive widespread use, become available for other developers to
incorporate. Many developers of free software are heartened and
encouraged by the resulting cooperation. However, in the case of
software used on network servers, this result may fail to come about.
The GNU General Public License permits making a modified version and
letting the public access it on a server without ever releasing its
source code to the public.
The GNU Affero General Public License is designed specifically to
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provide the source code of the modified version running there to the
users of that server. Therefore, public use of a modified version, on
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code of the modified version.
An older license, called the Affero General Public License and
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released a new version of the Affero GPL which permits relicensing under
this license.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU Affero General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
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"The Program" refers to any copyrightable work licensed under this
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A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
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public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
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An interactive user interface displays "Appropriate Legal Notices"
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1. Source Code.
The "source code" for a work means the preferred form of the work
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The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.
The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
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You may make, run and propagate covered works that you do not
convey, without conditions so long as your license otherwise remains
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similar laws prohibiting or restricting circumvention of such
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work need not make them do so.
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You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:
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(including a physical distribution medium), accompanied by the
Corresponding Source fixed on a durable physical medium
customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by a
written offer, valid for at least three years and valid for as
long as you offer spare parts or customer support for that product
model, to give anyone who possesses the object code either (1) a
copy of the Corresponding Source for all the software in the
product that is covered by this License, on a durable physical
medium customarily used for software interchange, for a price no
more than your reasonable cost of physically performing this
conveying of source, or (2) access to copy the
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the
written offer to provide the Corresponding Source. This
alternative is allowed only occasionally and noncommercially, and
only if you received the object code with such an offer, in accord
with subsection 6b.
d) Convey the object code by offering access from a designated
place (gratis or for a charge), and offer equivalent access to the
Corresponding Source in the same way through the same place at no
further charge. You need not require recipients to copy the
Corresponding Source along with the object code. If the place to
copy the object code is a network server, the Corresponding Source
may be on a different server (operated by you or a third party)
that supports equivalent copying facilities, provided you maintain
clear directions next to the object code saying where to find the
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Corresponding Source, you remain obligated to ensure that it is
available for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided
you inform other peers where the object code and Corresponding
Source of the work are being offered to the general public at no
charge under subsection 6d.
A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.
A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for incorporation
into a dwelling. In determining whether a product is a consumer product,
doubtful cases shall be resolved in favor of coverage. For a particular
product received by a particular user, "normally used" refers to a
typical or common use of that class of product, regardless of the status
of the particular user or of the way in which the particular user
actually uses, or expects or is expected to use, the product. A product
is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.
"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to install
and execute modified versions of a covered work in that User Product from
a modified version of its Corresponding Source. The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.
If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information. But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).
The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed. Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.
7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or
author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
requiring that modified versions of such material be marked in
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trade names, trademarks, or service marks; or
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material by anyone who conveys the material (or modified versions of
it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term. If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
supports such interaction) an opportunity to receive the Corresponding
Source of your version by providing access to the Corresponding Source
from a network server at no charge, through some standard or customary
means of facilitating copying of software. This Corresponding Source
shall include the Corresponding Source for any work covered by version 3
of the GNU General Public License that is incorporated pursuant to the
following paragraph.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the work with which it is combined will remain governed by version
3 of the GNU General Public License.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU Affero General Public License from time to time. Such new versions
will be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU Affero General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU Affero General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU Affero General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<http://www.gnu.org/licenses/>.
`,
}
}

238
vendor/github.com/spf13/cobra/cobra/cmd/license_apache_2.go generated vendored Normal file
View file

@ -0,0 +1,238 @@
// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
func initApache2() {
Licenses["apache"] = License{
Name: "Apache 2.0",
PossibleMatches: []string{"apache", "apache20", "apache 2.0", "apache2.0", "apache-2.0"},
Header: `
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.`,
Text: `
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
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institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
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(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
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within a display generated by the Derivative Works, if and
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of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
`,
}
}

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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
func initBsdClause2() {
Licenses["freebsd"] = License{
Name: "Simplified BSD License",
PossibleMatches: []string{"freebsd", "simpbsd", "simple bsd", "2-clause bsd",
"2 clause bsd", "simplified bsd license"},
Header: `All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.`,
Text: `{{ .copyright }}
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
`,
}
}

78
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
func initBsdClause3() {
Licenses["bsd"] = License{
Name: "NewBSD",
PossibleMatches: []string{"bsd", "newbsd", "3 clause bsd", "3-clause bsd"},
Header: `All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.`,
Text: `{{ .copyright }}
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
`,
}
}

376
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
func initGpl2() {
Licenses["gpl2"] = License{
Name: "GNU General Public License 2.0",
PossibleMatches: []string{"gpl2", "gnu gpl2", "gplv2"},
Header: `
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.`,
Text: ` GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'show c' for details.
The hypothetical commands 'show w' and 'show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than 'show w' and 'show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
'Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
`,
}
}

711
vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_3.go generated vendored Normal file
View file

@ -0,0 +1,711 @@
// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
func initGpl3() {
Licenses["gpl3"] = License{
Name: "GNU General Public License 3.0",
PossibleMatches: []string{"gpl3", "gplv3", "gpl", "gnu gpl3", "gnu gpl"},
Header: `
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.`,
Text: ` GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
in a fashion requiring copyright permission, other than the making of an
exact copy. The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
form of a work.
A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.
The "System Libraries" of an executable work include anything, other
than the work as a whole, that (a) is included in the normal form of
packaging a Major Component, but which is not part of that Major
Component, and (b) serves only to enable use of the work with that
Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form. A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.
The "Corresponding Source" for a work in object code form means all
the source code needed to generate, install, and (for an executable
work) run the object code and to modify the work, including scripts to
control those activities. However, it does not include the work's
System Libraries, or general-purpose tools or generally available free
programs which are used unmodified in performing those activities but
which are not part of the work. For example, Corresponding Source
includes interface definition files associated with source files for
the work, and the source code for shared libraries and dynamically
linked subprograms that the work is specifically designed to require,
such as by intimate data communication or control flow between those
subprograms and other parts of the work.
The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.
The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
covered work is covered by this License only if the output, given its
content, constitutes a covered work. This License acknowledges your
rights of fair use or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not
convey, without conditions so long as your license otherwise remains
in force. You may convey covered works to others for the sole purpose
of having them make modifications exclusively for you, or provide you
with facilities for running those works, provided that you comply with
the terms of this License in conveying all material for which you do
not control copyright. Those thus making or running the covered works
for you must do so exclusively on your behalf, under your direction
and control, on terms that prohibit them from making any copies of
your copyrighted material outside their relationship with you.
Conveying under any other circumstances is permitted solely under
the conditions stated below. Sublicensing is not allowed; section 10
makes it unnecessary.
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological
measure under any applicable law fulfilling obligations under article
11 of the WIPO copyright treaty adopted on 20 December 1996, or
similar laws prohibiting or restricting circumvention of such
measures.
When you convey a covered work, you waive any legal power to forbid
circumvention of technological measures to the extent such circumvention
is effected by exercising rights under this License with respect to
the covered work, and you disclaim any intention to limit operation or
modification of the work as a means of enforcing, against the work's
users, your or third parties' legal rights to forbid circumvention of
technological measures.
4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and
appropriately publish on each copy an appropriate copyright notice;
keep intact all notices stating that this License and any
non-permissive terms added in accord with section 7 apply to the code;
keep intact all notices of the absence of any warranty; and give all
recipients a copy of this License along with the Program.
You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.
5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to
produce it from the Program, in the form of source code under the
terms of section 4, provided that you also meet all of these conditions:
a) The work must carry prominent notices stating that you modified
it, and giving a relevant date.
b) The work must carry prominent notices stating that it is
released under this License and any conditions added under section
7. This requirement modifies the requirement in section 4 to
"keep intact all notices".
c) You must license the entire work, as a whole, under this
License to anyone who comes into possession of a copy. This
License will therefore apply, along with any applicable section 7
additional terms, to the whole of the work, and all its parts,
regardless of how they are packaged. This License gives no
permission to license the work in any other way, but it does not
invalidate such permission if you have separately received it.
d) If the work has interactive user interfaces, each must display
Appropriate Legal Notices; however, if the Program has interactive
interfaces that do not display Appropriate Legal Notices, your
work need not make them do so.
A compilation of a covered work with other separate and independent
works, which are not by their nature extensions of the covered work,
and which are not combined with it such as to form a larger program,
in or on a volume of a storage or distribution medium, is called an
"aggregate" if the compilation and its resulting copyright are not
used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.
6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:
a) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by the
Corresponding Source fixed on a durable physical medium
customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by a
written offer, valid for at least three years and valid for as
long as you offer spare parts or customer support for that product
model, to give anyone who possesses the object code either (1) a
copy of the Corresponding Source for all the software in the
product that is covered by this License, on a durable physical
medium customarily used for software interchange, for a price no
more than your reasonable cost of physically performing this
conveying of source, or (2) access to copy the
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the
written offer to provide the Corresponding Source. This
alternative is allowed only occasionally and noncommercially, and
only if you received the object code with such an offer, in accord
with subsection 6b.
d) Convey the object code by offering access from a designated
place (gratis or for a charge), and offer equivalent access to the
Corresponding Source in the same way through the same place at no
further charge. You need not require recipients to copy the
Corresponding Source along with the object code. If the place to
copy the object code is a network server, the Corresponding Source
may be on a different server (operated by you or a third party)
that supports equivalent copying facilities, provided you maintain
clear directions next to the object code saying where to find the
Corresponding Source. Regardless of what server hosts the
Corresponding Source, you remain obligated to ensure that it is
available for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided
you inform other peers where the object code and Corresponding
Source of the work are being offered to the general public at no
charge under subsection 6d.
A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.
A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for incorporation
into a dwelling. In determining whether a product is a consumer product,
doubtful cases shall be resolved in favor of coverage. For a particular
product received by a particular user, "normally used" refers to a
typical or common use of that class of product, regardless of the status
of the particular user or of the way in which the particular user
actually uses, or expects or is expected to use, the product. A product
is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.
"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to install
and execute modified versions of a covered work in that User Product from
a modified version of its Corresponding Source. The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.
If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information. But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).
The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed. Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.
7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or
author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
requiring that modified versions of such material be marked in
reasonable ways as different from the original version; or
d) Limiting the use for publicity purposes of names of licensors or
authors of the material; or
e) Declining to grant rights under trademark law for use of some
trade names, trademarks, or service marks; or
f) Requiring indemnification of licensors and authors of that
material by anyone who conveys the material (or modified versions of
it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term. If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
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where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'show c' for details.
The hypothetical commands 'show w' and 'show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
`,
}
}

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vendor/github.com/spf13/cobra/cobra/cmd/license_lgpl.go generated vendored Normal file
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package cmd
func initLgpl() {
Licenses["lgpl"] = License{
Name: "GNU Lesser General Public License",
PossibleMatches: []string{"lgpl", "lesser gpl", "gnu lgpl"},
Header: `
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.`,
Text: ` GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
without being bound by section 3 of the GNU GPL.
2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
facility refers to a function or data to be supplied by an Application
that uses the facility (other than as an argument passed when the
facility is invoked), then you may convey a copy of the modified
version:
a) under this License, provided that you make a good faith effort to
ensure that, in the event an Application does not supply the
function or data, the facility still operates, and performs
whatever part of its purpose remains meaningful, or
b) under the GNU GPL, with none of the additional permissions of
this License applicable to that copy.
3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
a header file that is part of the Library. You may convey such object
code under terms of your choice, provided that, if the incorporated
material is not limited to numerical parameters, data structure
layouts and accessors, or small macros, inline functions and templates
(ten or fewer lines in length), you do both of the following:
a) Give prominent notice with each copy of the object code that the
Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the object code with a copy of the GNU GPL and this license
document.
4. Combined Works.
You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
portions of the Library contained in the Combined Work and reverse
engineering for debugging such modifications, if you also do each of
the following:
a) Give prominent notice with each copy of the Combined Work that
the Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the Combined Work with a copy of the GNU GPL and this license
document.
c) For a Combined Work that displays copyright notices during
execution, include the copyright notice for the Library among
these notices, as well as a reference directing the user to the
copies of the GNU GPL and this license document.
d) Do one of the following:
0) Convey the Minimal Corresponding Source under the terms of this
License, and the Corresponding Application Code in a form
suitable for, and under terms that permit, the user to
recombine or relink the Application with a modified version of
the Linked Version to produce a modified Combined Work, in the
manner specified by section 6 of the GNU GPL for conveying
Corresponding Source.
1) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (a) uses at run time
a copy of the Library already present on the user's computer
system, and (b) will operate properly with a modified version
of the Library that is interface-compatible with the Linked
Version.
e) Provide Installation Information, but only if you would otherwise
be required to provide such information under section 6 of the
GNU GPL, and only to the extent that such information is
necessary to install and execute a modified version of the
Combined Work produced by recombining or relinking the
Application with a modified version of the Linked Version. (If
you use option 4d0, the Installation Information must accompany
the Minimal Corresponding Source and Corresponding Application
Code. If you use option 4d1, you must provide the Installation
Information in the manner specified by section 6 of the GNU GPL
for conveying Corresponding Source.)
5. Combined Libraries.
You may place library facilities that are a work based on the
Library side by side in a single library together with other library
facilities that are not Applications and are not covered by this
License, and convey such a combined library under terms of your
choice, if you do both of the following:
a) Accompany the combined library with a copy of the same work based
on the Library, uncombined with any other library facilities,
conveyed under the terms of this License.
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
of the GNU Lesser General Public License "or any later version"
applies to it, you have the option of following the terms and
conditions either of that published version or of any later version
published by the Free Software Foundation. If the Library as you
received it does not specify a version number of the GNU Lesser
General Public License, you may choose any version of the GNU Lesser
General Public License ever published by the Free Software Foundation.
If the Library as you received it specifies that a proxy can decide
whether future versions of the GNU Lesser General Public License shall
apply, that proxy's public statement of acceptance of any version is
permanent authorization for you to choose that version for the
Library.`,
}
}

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vendor/github.com/spf13/cobra/cobra/cmd/license_mit.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
func initMit() {
Licenses["mit"] = License{
Name: "MIT License",
PossibleMatches: []string{"mit"},
Header: `
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.`,
Text: `The MIT License (MIT)
{{ .copyright }}
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
`,
}
}

118
vendor/github.com/spf13/cobra/cobra/cmd/licenses.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Parts inspired by https://github.com/ryanuber/go-license
package cmd
import (
"strings"
"time"
"github.com/spf13/viper"
)
// Licenses contains all possible licenses a user can choose from.
var Licenses = make(map[string]License)
// License represents a software license agreement, containing the Name of
// the license, its possible matches (on the command line as given to cobra),
// the header to be used with each file on the file's creating, and the text
// of the license
type License struct {
Name string // The type of license in use
PossibleMatches []string // Similar names to guess
Text string // License text data
Header string // License header for source files
}
func init() {
// Allows a user to not use a license.
Licenses["none"] = License{"None", []string{"none", "false"}, "", ""}
initApache2()
initMit()
initBsdClause3()
initBsdClause2()
initGpl2()
initGpl3()
initLgpl()
initAgpl()
}
// getLicense returns license specified by user in flag or in config.
// If user didn't specify the license, it returns Apache License 2.0.
//
// TODO: Inspect project for existing license
func getLicense() License {
// If explicitly flagged, use that.
if userLicense != "" {
return findLicense(userLicense)
}
// If user wants to have custom license, use that.
if viper.IsSet("license.header") || viper.IsSet("license.text") {
return License{Header: viper.GetString("license.header"),
Text: viper.GetString("license.text")}
}
// If user wants to have built-in license, use that.
if viper.IsSet("license") {
return findLicense(viper.GetString("license"))
}
// If user didn't set any license, use Apache 2.0 by default.
return Licenses["apache"]
}
func copyrightLine() string {
author := viper.GetString("author")
year := viper.GetString("year") // For tests.
if year == "" {
year = time.Now().Format("2006")
}
return "Copyright © " + year + " " + author
}
// findLicense looks for License object of built-in licenses.
// If it didn't find license, then the app will be terminated and
// error will be printed.
func findLicense(name string) License {
found := matchLicense(name)
if found == "" {
er("unknown license: " + name)
}
return Licenses[found]
}
// matchLicense compares the given a license name
// to PossibleMatches of all built-in licenses.
// It returns blank string, if name is blank string or it didn't find
// then appropriate match to name.
func matchLicense(name string) string {
if name == "" {
return ""
}
for key, lic := range Licenses {
for _, match := range lic.PossibleMatches {
if strings.EqualFold(name, match) {
return key
}
}
}
return ""
}

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vendor/github.com/spf13/cobra/cobra/cmd/project.go generated vendored Normal file
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package cmd
import (
"os"
"path/filepath"
"runtime"
"strings"
)
// Project contains name, license and paths to projects.
type Project struct {
absPath string
cmdPath string
srcPath string
license License
name string
}
// NewProject returns Project with specified project name.
// If projectName is blank string, it returns nil.
func NewProject(projectName string) *Project {
if projectName == "" {
return nil
}
p := new(Project)
p.name = projectName
// 1. Find already created protect.
p.absPath = findPackage(projectName)
// 2. If there are no created project with this path, and user is in GOPATH,
// then use GOPATH/src/projectName.
if p.absPath == "" {
wd, err := os.Getwd()
if err != nil {
er(err)
}
for _, srcPath := range srcPaths {
goPath := filepath.Dir(srcPath)
if filepathHasPrefix(wd, goPath) {
p.absPath = filepath.Join(srcPath, projectName)
break
}
}
}
// 3. If user is not in GOPATH, then use (first GOPATH)/src/projectName.
if p.absPath == "" {
p.absPath = filepath.Join(srcPaths[0], projectName)
}
return p
}
// findPackage returns full path to existing go package in GOPATHs.
// findPackage returns "", if it can't find path.
// If packageName is "", findPackage returns "".
func findPackage(packageName string) string {
if packageName == "" {
return ""
}
for _, srcPath := range srcPaths {
packagePath := filepath.Join(srcPath, packageName)
if exists(packagePath) {
return packagePath
}
}
return ""
}
// NewProjectFromPath returns Project with specified absolute path to
// package.
// If absPath is blank string or if absPath is not actually absolute,
// it returns nil.
func NewProjectFromPath(absPath string) *Project {
if absPath == "" || !filepath.IsAbs(absPath) {
return nil
}
p := new(Project)
p.absPath = absPath
p.absPath = strings.TrimSuffix(p.absPath, findCmdDir(p.absPath))
p.name = filepath.ToSlash(trimSrcPath(p.absPath, p.SrcPath()))
return p
}
// trimSrcPath trims at the beginning of absPath the srcPath.
func trimSrcPath(absPath, srcPath string) string {
relPath, err := filepath.Rel(srcPath, absPath)
if err != nil {
er("Cobra supports project only within $GOPATH: " + err.Error())
}
return relPath
}
// License returns the License object of project.
func (p *Project) License() License {
if p.license.Text == "" && p.license.Name != "None" {
p.license = getLicense()
}
return p.license
}
// Name returns the name of project, e.g. "github.com/spf13/cobra"
func (p Project) Name() string {
return p.name
}
// CmdPath returns absolute path to directory, where all commands are located.
//
// CmdPath returns blank string, only if p.AbsPath() is a blank string.
func (p *Project) CmdPath() string {
if p.absPath == "" {
return ""
}
if p.cmdPath == "" {
p.cmdPath = filepath.Join(p.absPath, findCmdDir(p.absPath))
}
return p.cmdPath
}
// findCmdDir checks if base of absPath is cmd dir and returns it or
// looks for existing cmd dir in absPath.
// If the cmd dir doesn't exist, empty, or cannot be found,
// it returns "cmd".
func findCmdDir(absPath string) string {
if !exists(absPath) || isEmpty(absPath) {
return "cmd"
}
if isCmdDir(absPath) {
return filepath.Base(absPath)
}
files, _ := filepath.Glob(filepath.Join(absPath, "c*"))
for _, file := range files {
if isCmdDir(file) {
return filepath.Base(file)
}
}
return "cmd"
}
// isCmdDir checks if base of name is one of cmdDir.
func isCmdDir(name string) bool {
name = filepath.Base(name)
for _, cmdDir := range cmdDirs {
if name == cmdDir {
return true
}
}
return false
}
// AbsPath returns absolute path of project.
func (p Project) AbsPath() string {
return p.absPath
}
// SrcPath returns absolute path to $GOPATH/src where project is located.
func (p *Project) SrcPath() string {
if p.srcPath != "" {
return p.srcPath
}
if p.absPath == "" {
p.srcPath = srcPaths[0]
return p.srcPath
}
for _, srcPath := range srcPaths {
if filepathHasPrefix(p.absPath, srcPath) {
p.srcPath = srcPath
break
}
}
return p.srcPath
}
func filepathHasPrefix(path string, prefix string) bool {
if len(path) <= len(prefix) {
return false
}
if runtime.GOOS == "windows" {
// Paths in windows are case-insensitive.
return strings.EqualFold(path[0:len(prefix)], prefix)
}
return path[0:len(prefix)] == prefix
}

24
vendor/github.com/spf13/cobra/cobra/cmd/project_test.go generated vendored Normal file
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package cmd
import (
"testing"
)
func TestFindExistingPackage(t *testing.T) {
path := findPackage("github.com/spf13/cobra")
if path == "" {
t.Fatal("findPackage didn't find the existing package")
}
if !hasGoPathPrefix(path) {
t.Fatalf("%q is not in GOPATH, but must be", path)
}
}
func hasGoPathPrefix(path string) bool {
for _, srcPath := range srcPaths {
if filepathHasPrefix(path, srcPath) {
return true
}
}
return false
}

79
vendor/github.com/spf13/cobra/cobra/cmd/root.go generated vendored Normal file
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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var (
// Used for flags.
cfgFile, userLicense string
rootCmd = &cobra.Command{
Use: "cobra",
Short: "A generator for Cobra based Applications",
Long: `Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
to quickly create a Cobra application.`,
}
)
// Execute executes the root command.
func Execute() {
rootCmd.Execute()
}
func init() {
cobra.OnInitialize(initConfig)
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
rootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "author name for copyright attribution")
rootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "name of license for the project")
rootCmd.PersistentFlags().Bool("viper", true, "use Viper for configuration")
viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author"))
viper.BindPFlag("useViper", rootCmd.PersistentFlags().Lookup("viper"))
viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
viper.SetDefault("license", "apache")
rootCmd.AddCommand(addCmd)
rootCmd.AddCommand(initCmd)
}
func initConfig() {
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
er(err)
}
// Search config in home directory with name ".cobra" (without extension).
viper.AddConfigPath(home)
viper.SetConfigName(".cobra")
}
viper.AutomaticEnv()
if err := viper.ReadInConfig(); err == nil {
fmt.Println("Using config file:", viper.ConfigFileUsed())
}
}

202
vendor/github.com/spf13/cobra/cobra/cmd/testdata/LICENSE.golden generated vendored Normal file
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
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of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
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means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
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(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
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within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
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agreed to in writing, Licensor provides the Work (and each
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
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Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
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on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
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Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import "github.com/spf13/testproject/cmd"
func main() {
cmd.Execute()
}

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// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"os"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var cfgFile string
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "testproject",
Short: "A brief description of your application",
Long: `A longer description that spans multiple lines and likely contains
examples and usage of using your application. For example:
Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
to quickly create a Cobra application.`,
// Uncomment the following line if your bare application
// has an action associated with it:
// Run: func(cmd *cobra.Command, args []string) { },
}
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(initConfig)
// Here you will define your flags and configuration settings.
// Cobra supports persistent flags, which, if defined here,
// will be global for your application.
RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.testproject.yaml)")
// Cobra also supports local flags, which will only run
// when this action is called directly.
RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}
// initConfig reads in config file and ENV variables if set.
func initConfig() {
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// Search config in home directory with name ".testproject" (without extension).
viper.AddConfigPath(home)
viper.SetConfigName(".testproject")
}
viper.AutomaticEnv() // read in environment variables that match
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
fmt.Println("Using config file:", viper.ConfigFileUsed())
}
}

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// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"github.com/spf13/cobra"
)
// testCmd represents the test command
var testCmd = &cobra.Command{
Use: "test",
Short: "A brief description of your command",
Long: `A longer description that spans multiple lines and likely contains examples
and usage of using your command. For example:
Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
to quickly create a Cobra application.`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("test called")
},
}
func init() {
RootCmd.AddCommand(testCmd)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// testCmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
// testCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}

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// Copyright © 2015 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import "github.com/spf13/cobra/cobra/cmd"
func main() {
cmd.Execute()
}

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package doc
import (
"bytes"
"fmt"
"runtime"
"strings"
"testing"
"github.com/spf13/cobra"
)
var flagb1, flagb2, flagb3, flagbr, flagbp bool
var flags1, flags2a, flags2b, flags3 string
var flagi1, flagi2, flagi3, flagir int
const strtwoParentHelp = "help message for parent flag strtwo"
const strtwoChildHelp = "help message for child flag strtwo"
var cmdEcho = &cobra.Command{
Use: "echo [string to echo]",
Aliases: []string{"say"},
Short: "Echo anything to the screen",
Long: `an utterly useless command for testing.`,
Example: "Just run cobra-test echo",
}
var cmdEchoSub = &cobra.Command{
Use: "echosub [string to print]",
Short: "second sub command for echo",
Long: `an absolutely utterly useless command for testing gendocs!.`,
Run: func(cmd *cobra.Command, args []string) {},
}
var cmdDeprecated = &cobra.Command{
Use: "deprecated [can't do anything here]",
Short: "A command which is deprecated",
Long: `an absolutely utterly useless command for testing deprecation!.`,
Deprecated: "Please use echo instead",
}
var cmdTimes = &cobra.Command{
Use: "times [# times] [string to echo]",
SuggestFor: []string{"counts"},
Short: "Echo anything to the screen more times",
Long: `a slightly useless command for testing.`,
PersistentPreRun: func(cmd *cobra.Command, args []string) {},
Run: func(cmd *cobra.Command, args []string) {},
}
var cmdPrint = &cobra.Command{
Use: "print [string to print]",
Short: "Print anything to the screen",
Long: `an absolutely utterly useless command for testing.`,
}
var cmdRootNoRun = &cobra.Command{
Use: "cobra-test",
Short: "The root can run its own function",
Long: "The root description for help",
}
var cmdRootSameName = &cobra.Command{
Use: "print",
Short: "Root with the same name as a subcommand",
Long: "The root description for help",
}
var cmdRootWithRun = &cobra.Command{
Use: "cobra-test",
Short: "The root can run its own function",
Long: "The root description for help",
}
var cmdSubNoRun = &cobra.Command{
Use: "subnorun",
Short: "A subcommand without a Run function",
Long: "A long output about a subcommand without a Run function",
}
var cmdVersion1 = &cobra.Command{
Use: "version",
Short: "Print the version number",
Long: `First version of the version command`,
}
var cmdVersion2 = &cobra.Command{
Use: "version",
Short: "Print the version number",
Long: `Second version of the version command`,
}
func flagInit() {
cmdEcho.ResetFlags()
cmdPrint.ResetFlags()
cmdTimes.ResetFlags()
cmdRootNoRun.ResetFlags()
cmdRootSameName.ResetFlags()
cmdRootWithRun.ResetFlags()
cmdSubNoRun.ResetFlags()
cmdRootNoRun.PersistentFlags().StringVarP(&flags2a, "strtwo", "t", "two", strtwoParentHelp)
cmdEcho.Flags().IntVarP(&flagi1, "intone", "i", 123, "help message for flag intone")
cmdTimes.Flags().IntVarP(&flagi2, "inttwo", "j", 234, "help message for flag inttwo")
cmdPrint.Flags().IntVarP(&flagi3, "intthree", "i", 345, "help message for flag intthree")
cmdEcho.PersistentFlags().StringVarP(&flags1, "strone", "s", "one", "help message for flag strone")
cmdEcho.PersistentFlags().BoolVarP(&flagbp, "persistentbool", "p", false, "help message for flag persistentbool")
cmdTimes.PersistentFlags().StringVarP(&flags2b, "strtwo", "t", "2", strtwoChildHelp)
cmdPrint.PersistentFlags().StringVarP(&flags3, "strthree", "s", "three", "help message for flag strthree")
cmdEcho.Flags().BoolVarP(&flagb1, "boolone", "b", true, "help message for flag boolone")
cmdTimes.Flags().BoolVarP(&flagb2, "booltwo", "c", false, "help message for flag booltwo")
cmdPrint.Flags().BoolVarP(&flagb3, "boolthree", "b", true, "help message for flag boolthree")
cmdVersion1.ResetFlags()
cmdVersion2.ResetFlags()
}
func initializeWithRootCmd() *cobra.Command {
cmdRootWithRun.ResetCommands()
flagInit()
cmdRootWithRun.Flags().BoolVarP(&flagbr, "boolroot", "b", false, "help message for flag boolroot")
cmdRootWithRun.Flags().IntVarP(&flagir, "introot", "i", 321, "help message for flag introot")
return cmdRootWithRun
}
func checkStringContains(t *testing.T, found, expected string) {
if !strings.Contains(found, expected) {
logErr(t, found, expected)
}
}
func checkStringOmits(t *testing.T, found, expected string) {
if strings.Contains(found, expected) {
logErr(t, found, expected)
}
}
func logErr(t *testing.T, found, expected string) {
out := new(bytes.Buffer)
_, _, line, ok := runtime.Caller(2)
if ok {
fmt.Fprintf(out, "Line: %d ", line)
}
fmt.Fprintf(out, "Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
t.Errorf(out.String())
}

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// Copyright 2015 Red Hat Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package doc
import (
"bytes"
"fmt"
"io"
"os"
"path/filepath"
"sort"
"strings"
"time"
"github.com/cpuguy83/go-md2man/md2man"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
// GenManTree will generate a man page for this command and all descendants
// in the directory given. The header may be nil. This function may not work
// correctly if your command names have `-` in them. If you have `cmd` with two
// subcmds, `sub` and `sub-third`, and `sub` has a subcommand called `third`
// it is undefined which help output will be in the file `cmd-sub-third.1`.
func GenManTree(cmd *cobra.Command, header *GenManHeader, dir string) error {
return GenManTreeFromOpts(cmd, GenManTreeOptions{
Header: header,
Path: dir,
CommandSeparator: "-",
})
}
// GenManTreeFromOpts generates a man page for the command and all descendants.
// The pages are written to the opts.Path directory.
func GenManTreeFromOpts(cmd *cobra.Command, opts GenManTreeOptions) error {
header := opts.Header
if header == nil {
header = &GenManHeader{}
}
for _, c := range cmd.Commands() {
if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
continue
}
if err := GenManTreeFromOpts(c, opts); err != nil {
return err
}
}
section := "1"
if header.Section != "" {
section = header.Section
}
separator := "_"
if opts.CommandSeparator != "" {
separator = opts.CommandSeparator
}
basename := strings.Replace(cmd.CommandPath(), " ", separator, -1)
filename := filepath.Join(opts.Path, basename+"."+section)
f, err := os.Create(filename)
if err != nil {
return err
}
defer f.Close()
headerCopy := *header
return GenMan(cmd, &headerCopy, f)
}
// GenManTreeOptions is the options for generating the man pages.
// Used only in GenManTreeFromOpts.
type GenManTreeOptions struct {
Header *GenManHeader
Path string
CommandSeparator string
}
// GenManHeader is a lot like the .TH header at the start of man pages. These
// include the title, section, date, source, and manual. We will use the
// current time if Date if unset and will use "Auto generated by spf13/cobra"
// if the Source is unset.
type GenManHeader struct {
Title string
Section string
Date *time.Time
date string
Source string
Manual string
}
// GenMan will generate a man page for the given command and write it to
// w. The header argument may be nil, however obviously w may not.
func GenMan(cmd *cobra.Command, header *GenManHeader, w io.Writer) error {
if header == nil {
header = &GenManHeader{}
}
fillHeader(header, cmd.CommandPath())
b := genMan(cmd, header)
_, err := w.Write(md2man.Render(b))
return err
}
func fillHeader(header *GenManHeader, name string) {
if header.Title == "" {
header.Title = strings.ToUpper(strings.Replace(name, " ", "\\-", -1))
}
if header.Section == "" {
header.Section = "1"
}
if header.Date == nil {
now := time.Now()
header.Date = &now
}
header.date = (*header.Date).Format("Jan 2006")
if header.Source == "" {
header.Source = "Auto generated by spf13/cobra"
}
}
func manPreamble(buf *bytes.Buffer, header *GenManHeader, cmd *cobra.Command, dashedName string) {
description := cmd.Long
if len(description) == 0 {
description = cmd.Short
}
buf.WriteString(fmt.Sprintf(`%% %s(%s)%s
%% %s
%% %s
# NAME
`, header.Title, header.Section, header.date, header.Source, header.Manual))
buf.WriteString(fmt.Sprintf("%s \\- %s\n\n", dashedName, cmd.Short))
buf.WriteString("# SYNOPSIS\n")
buf.WriteString(fmt.Sprintf("**%s**\n\n", cmd.UseLine()))
buf.WriteString("# DESCRIPTION\n")
buf.WriteString(description + "\n\n")
}
func manPrintFlags(buf *bytes.Buffer, flags *pflag.FlagSet) {
flags.VisitAll(func(flag *pflag.Flag) {
if len(flag.Deprecated) > 0 || flag.Hidden {
return
}
format := ""
if len(flag.Shorthand) > 0 && len(flag.ShorthandDeprecated) == 0 {
format = fmt.Sprintf("**-%s**, **--%s**", flag.Shorthand, flag.Name)
} else {
format = fmt.Sprintf("**--%s**", flag.Name)
}
if len(flag.NoOptDefVal) > 0 {
format += "["
}
if flag.Value.Type() == "string" {
// put quotes on the value
format += "=%q"
} else {
format += "=%s"
}
if len(flag.NoOptDefVal) > 0 {
format += "]"
}
format += "\n\t%s\n\n"
buf.WriteString(fmt.Sprintf(format, flag.DefValue, flag.Usage))
})
}
func manPrintOptions(buf *bytes.Buffer, command *cobra.Command) {
flags := command.NonInheritedFlags()
if flags.HasFlags() {
buf.WriteString("# OPTIONS\n")
manPrintFlags(buf, flags)
buf.WriteString("\n")
}
flags = command.InheritedFlags()
if flags.HasFlags() {
buf.WriteString("# OPTIONS INHERITED FROM PARENT COMMANDS\n")
manPrintFlags(buf, flags)
buf.WriteString("\n")
}
}
func genMan(cmd *cobra.Command, header *GenManHeader) []byte {
cmd.InitDefaultHelpCmd()
cmd.InitDefaultHelpFlag()
// something like `rootcmd-subcmd1-subcmd2`
dashCommandName := strings.Replace(cmd.CommandPath(), " ", "-", -1)
buf := new(bytes.Buffer)
manPreamble(buf, header, cmd, dashCommandName)
manPrintOptions(buf, cmd)
if len(cmd.Example) > 0 {
buf.WriteString("# EXAMPLE\n")
buf.WriteString(fmt.Sprintf("```\n%s\n```\n", cmd.Example))
}
if hasSeeAlso(cmd) {
buf.WriteString("# SEE ALSO\n")
seealsos := make([]string, 0)
if cmd.HasParent() {
parentPath := cmd.Parent().CommandPath()
dashParentPath := strings.Replace(parentPath, " ", "-", -1)
seealso := fmt.Sprintf("**%s(%s)**", dashParentPath, header.Section)
seealsos = append(seealsos, seealso)
cmd.VisitParents(func(c *cobra.Command) {
if c.DisableAutoGenTag {
cmd.DisableAutoGenTag = c.DisableAutoGenTag
}
})
}
children := cmd.Commands()
sort.Sort(byName(children))
for _, c := range children {
if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
continue
}
seealso := fmt.Sprintf("**%s-%s(%s)**", dashCommandName, c.Name(), header.Section)
seealsos = append(seealsos, seealso)
}
buf.WriteString(strings.Join(seealsos, ", ") + "\n")
}
if !cmd.DisableAutoGenTag {
buf.WriteString(fmt.Sprintf("# HISTORY\n%s Auto generated by spf13/cobra\n", header.Date.Format("2-Jan-2006")))
}
return buf.Bytes()
}

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# Generating Man Pages For Your Own cobra.Command
Generating man pages from a cobra command is incredibly easy. An example is as follows:
```go
package main
import (
"log"
"github.com/spf13/cobra"
"github.com/spf13/cobra/doc"
)
func main() {
cmd := &cobra.Command{
Use: "test",
Short: "my test program",
}
header := &doc.GenManHeader{
Title: "MINE",
Section: "3",
}
err := doc.GenManTree(cmd, header, "/tmp")
if err != nil {
log.Fatal(err)
}
}
```
That will get you a man page `/tmp/test.3`

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