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x/exp/cmd/gorelease: cannot verify consistency of existing tag #47532

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marten-seemann opened this issue Aug 4, 2021 · 2 comments
Open

x/exp/cmd/gorelease: cannot verify consistency of existing tag #47532

marten-seemann opened this issue Aug 4, 2021 · 2 comments
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modules NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Tools This label describes issues relating to any tools in the x/tools repository.
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@marten-seemann
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What version of Go are you using (go version)?

$ go version
go version go1.16.6 darwin/amd64

Does this issue reproduce with the latest release?

Yes

What did you do?

I use gorelease locally, it's a great tool to automatically apply semver rules and suggest new version numbers.

What did you expect to see?

In addition to that, I would like to use it on CI (specifically: every time a new v* tag is pushed) in order to verify that this tag is consistent with the semantic versioning rules. This would allow us to catch cases where contributors forgot to run gorelease before tagging a new release, and quickly act to avoid breaking downstream users when we used the wrong version number.

What did you see instead?

There's no way to verify an existing version using gorelease. Running gorelease on the most recent tag (v0.x.y) will just return v0.x.y+1, running it using the -base=v0.x.y-1 results in the error message "Can only suggest a release version when compared against the most recent version of this major: v0.x.y".

@bcmills
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bcmills commented Aug 4, 2021

CC @jayconrod @jadekler

@jayconrod
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This is an important use case for gomoddiff, when we do eventually do that (#46371).

gomoddiff will compare two versions, usually but not necessarily from the same module, and it will report whether those versions are consistent with semver (at least as far as it can tell from the public API).

We should make sure that when gomoddiff is given only one version, it automatically compares against the next lower version.

@jayconrod jayconrod added modules Tools This label describes issues relating to any tools in the x/tools repository. labels Aug 4, 2021
@dmitshur dmitshur added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Aug 10, 2021
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