Add repository location parsing code

backend/s3/uri_test.go

@@ -0,0 +1,33 @@
+package s3
+
+import "testing"
+
+var uriTests = []struct {
+	s   string
+	cfg Config
+}{
+	{"s3://eu-central-1/bucketname", Config{
+		Host:   "eu-central-1",
+		Bucket: "bucketname",
+	}},
+	{"s3:hostname:foobar", Config{
+		Host:   "hostname",
+		Bucket: "foobar",
+	}},
+}
+
+func TestParseConfig(t *testing.T) {
+	for i, test := range uriTests {
+		cfg, err := ParseConfig(test.s)
+		if err != nil {
+			t.Errorf("test %d failed: %v", i, err)
+			continue
+		}
+
+		if cfg != test.cfg {
+			t.Errorf("test %d: wrong config, want:\n  %v\ngot:\n  %v",
+				i, test.cfg, cfg)
+			continue
+		}
+	}
+}