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cmd/go: populate debug.Module.Sum even if build in devel mode #33533

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dsnet opened this issue Aug 7, 2019 · 2 comments
Open

cmd/go: populate debug.Module.Sum even if build in devel mode #33533

dsnet opened this issue Aug 7, 2019 · 2 comments
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FeatureRequest Issues asking for a new feature that does not need a proposal. help wanted modules NeedsFix The path to resolution is known, but the work has not been done.
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@dsnet
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dsnet commented Aug 7, 2019 •
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Related to #29814

When a binary is build from within a module's source tree, the output from runtime/debug.ReadBuildInfo currently reports the module as having version (devel).
This is understandable.

However, I don't think there is technical reason why the Sum at least can't be computed.

This has usefulness when building commandline tools from the source tree, and you want to at least emit some versioning information that distinguishes one build from another build at a different commit.

\cc @bcmills
@dsnet dsnet added the modules label Aug 7, 2019
@bcmills bcmills added the NeedsFix The path to resolution is known, but the work has not been done. label Aug 7, 2019
@bcmills bcmills added this to the Go1.14 milestone Aug 7, 2019
@bcmills bcmills added the FeatureRequest Issues asking for a new feature that does not need a proposal. label Aug 7, 2019
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bcmills commented Aug 7, 2019

This request seems eminently reasonable to me.

(CC @jayconrod in case he disagrees.)

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bcmills commented Sep 17, 2019

This has some interplay with #33312, in that both require some command to walk the contents of main module.

@rsc rsc modified the milestones: Go1.14, Backlog Oct 9, 2019
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