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cmd/go: TestScript/version_buildvcs_git_gpg (if enabled) fails on linux longtest builders [1.18 backport] #57054

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gopherbot opened this issue Dec 2, 2022 · 2 comments
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CherryPickApproved Used during the release process for point releases GoCommand cmd/go Testing An issue that has been verified to require only test changes, not just a test failure.
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@gopherbot
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@bcmills requested issue #57034 to be considered for backport to the next 1.18 minor release.

@gopherbot, please backport to Go 1.19 and 1.18: this test may fail spuriously due to problems with a fragile third-party tool.

@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Dec 2, 2022
@gopherbot gopherbot added this to the Go1.18.10 milestone Dec 2, 2022
@bcmills bcmills modified the milestones: Go1.18.10, Go1.18.9 Dec 2, 2022
@gopherbot
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Change https://go.dev/cl/454956 mentions this issue: [release-branch.go1.18] cmd/go: remove TestScript/version_buildvcs_git_gpg

@dmitshur dmitshur added Testing An issue that has been verified to require only test changes, not just a test failure. GoCommand cmd/go labels Dec 6, 2022
@prattmic prattmic added the CherryPickApproved Used during the release process for point releases label Dec 7, 2022
@gopherbot gopherbot removed the CherryPickCandidate Used during the release process for point releases label Dec 7, 2022
gopherbot pushed a commit that referenced this issue Dec 9, 2022
…t_gpg

This was a regression test added for a 'git' command line
used for build stamping. Unfortunately, 'gpg' has proved to
be extremely fragile:

* In recent versions, it appears to always require 'gpg-agent' to be
  installed for anything involving secret keys, but for some reason is
  not normally marked as requiring gpg-agent in Debian's package
  manager.

* It tries to create a Unix domain socket in a subdirectory of $TMPDIR
  without checking the path length, which fails when $TMPDIR is too
  long to fit in the 'sun_path' field of a sockaddr_un struct (which
  typically tops out somewhere between 92 and 108 bytes).

We could theoretically address those by artificially reducing the
script's TMPDIR length and checking for gpg-agent in addition to gpg,
but arguably those should both be fixed upstream instead. On balance,
the incremental value that this test provides does not seem worth the
complexity of dealing with such a fragile third-party tool.

Updates #50675.
Updates #48802.
Updates #57034.
Fixes #57054.

Change-Id: Ia3288c2f84f8db86ddfa139b4d1c0112d67079ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/454502
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
(cherry picked from commit 45f5ef4)
Reviewed-on: https://go-review.googlesource.com/c/go/+/454956
@gopherbot
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Closed by merging 2b98966 to release-branch.go1.18.

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