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cmd/dist: make --compile-only actually only compile test binaries and not run them #58297

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mknyszek opened this issue Feb 3, 2023 · 2 comments
Open

cmd/dist: make --compile-only actually only compile test binaries and not run them #58297

mknyszek opened this issue Feb 3, 2023 · 2 comments
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@mknyszek
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mknyszek commented Feb 3, 2023

Currently the --compile-only flag mostly prevents tests from running, but still runs all compiled test binaries. This means that our cross-compiling builders don't have an easy way to build test packages, so we're missing some coverage there on the trybots.

CC @aclements @golang/release
@mknyszek mknyszek added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Feb 3, 2023
@mknyszek mknyszek added this to the Backlog milestone Feb 3, 2023
@gopherbot
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Change https://go.dev/cl/464956 mentions this issue: dashboard: remove StopAfterMake from misc-compile builders

@bcmills bcmills added the NeedsFix The path to resolution is known, but the work has not been done. label Feb 3, 2023
@gopherbot gopherbot removed the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Feb 3, 2023
@dmitshur
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dmitshur commented Feb 3, 2023 •
edited

For additional context, this comment thread captures some of the reasons why -run=^$ was chosen over test -c at the time, before we considered this use case.

gopherbot pushed a commit to golang/build that referenced this issue Feb 3, 2023
@mknyszek
dashboard: remove StopAfterMake from misc-compile builders
0962551 
The previous change added a StopAfterMake requirement so that the
misc-compile builders would only ever run make.bash. However, this
is a fairly big hammer as it skips everything after make.bash. Coming
up, we're going to want to runSubrepoTests.

However, we can't call into runTests because of golang/go#58297, so we
need a special exception for that. This change thus also adds the notion
of IsCrossCompileOnly defined by whether the host arch doesn't line up
with the target arch, and adds a test to make sure this only applies to
the misc-compile builders.

This change also removes some hard-coding of the misc-compile prefix in
favor of this new IsCrossCompileOnly notion.

For golang/go#58163.

Change-Id: I40ce91e13b45e8bbbb607aedd302f0ec0fbd608a
Reviewed-on: https://go-review.googlesource.com/c/build/+/464956
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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