As described in the FS documentation.
This prevents http.FS and other clients from panicking when the
go:embed directive is missing.
For #43682
Related #43698
Change-Id: Iecf26d229a099e55d24670c3119cd6c6d17ecc6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/283852
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Allowing embedding into []byte inside a func creates an
unfortunate problem: either all calls start with the same
underlying data and can see each other's changes to the
underlying data (surprising and racy!) or all calls start
by making their own copy of the underlying data
(surprising and expensive!).
After discussion on #43216, the consensus was to remove
support for all vars embedded inside functions.
Fixes#43216.
Change-Id: I01e62b5f0dcd9e8566c6d2286218e97803f54704
Reviewed-on: https://go-review.googlesource.com/c/go/+/282714
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Sub provides a convenient way to refer to a subdirectory
automatically in future operations, like Unix's chdir(2).
The CL also includes updates to fstest to check Sub implementations.
As part of updating fstest, I changed the meaning of TestFS's
expected list to introduce a special case: if you list no expected files,
that means the FS must be empty. In general it's OK not to list all
the expected files, but if you list none, that's almost certainly a
mistake - if your FS were broken and empty, you wouldn't find out.
Making no expected files mean "must be empty" makes the mistake
less likely - if your file system ever worked, then your test will keep
it working.
That change found a testing bug: embedtest was making exactly
that mistake.
Fixes#42322.
Change-Id: I63fd4aa866b30061a0e51ca9a1927e576d6ec41e
Reviewed-on: https://go-review.googlesource.com/c/go/+/274856
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Discussion on #42328 led to a decision to exclude files matching
.* and _* from embedded directory results when embedding an
entire directory tree.
This CL implements that new behavior.
Fixes#42328.
Change-Id: I6188994e96348b3449c7d9d3d0d181cfbf2d4db1
Reviewed-on: https://go-review.googlesource.com/c/go/+/275092
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The final piece of //go:embed support: have the go command stitch
together parsing in go/build, low-level data initialization in cmd/compile,
and the new data structures in package embed, to make the //go:embed
feature actually function.
And test, now that all the pieces are available to work together.
For #41191.
(Issue not fixed: still need to add a tool for use by Bazel.)
Change-Id: Ib1d198345c3b4d557d340f292eda13b984b65d65
Reviewed-on: https://go-review.googlesource.com/c/go/+/243945
Trust: Russ Cox <rsc@golang.org>
Trust: Jay Conrod <jayconrod@google.com>
Trust: Johan Brandhorst <johan.brandhorst@gmail.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Johan Brandhorst <johan.brandhorst@gmail.com>
