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The previous implementation of helperCommand relied on running a
well-known Test function which implemented all known commands.
That not only added Skip noise in the test's output, but also (and
more importantly) meant that the commands could not write directly to
stdout in the usual way, since the testing package hijacks os.Stdout
for its own use.
The new implementation addresses the above issues, and also ensures
that all registered commands are actually used, reducing the risk of
an unused command sticking around after refactoring.
It also sets the subprocess environment variable directly in the test
process, instead of on each individual helper command's Env field,
allowing helper commands to be used without an explicit Env.
Updates #50599.
(Also for #50436.)
Change-Id: I189c7bed9a07cfe47a084b657b88575b1ee370b9
Reviewed-on: https://go-review.googlesource.com/c/go/+/401934
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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When these packages are released as part of Go 1.18,
Go 1.16 will no longer be supported, so we can remove
the +build tags in these files.
Ran go fix -fix=buildtag std cmd and then reverted the bootstrapDirs
as defined in src/cmd/dist/buildtool.go, which need to continue
to build with Go 1.4 for now.
Also reverted src/vendor and src/cmd/vendor, which will need
to be updated in their own repos first.
Manual changes in runtime/pprof/mprof_test.go to adjust line numbers.
For #41184.
Change-Id: Ic0f93f7091295b6abc76ed5cd6e6746e1280861e
Reviewed-on: https://go-review.googlesource.com/c/go/+/344955
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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Make all our package sources use Go 1.17 gofmt format
(adding //go:build lines).
Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild
Change-Id: Ia0534360e4957e58cd9a18429c39d0e32a6addb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/294430
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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TestExtraFiles seems to be flaky on GNU/Linux systems when using cgo
because creating a new thread will call malloc which can create a new
arena which can open a file to see how many processors there are.
Try to avoid the flake by creating several new threads at process
startup time.
For #25628
Change-Id: Ie781acdbba475d993c39782fe172cf7f29a05b24
Reviewed-on: https://go-review.googlesource.com/c/go/+/228099
Reviewed-by: Bryan C. Mills <bcmills@google.com>
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