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internal/goexperiment: remove CoverageRedesign some time in 1.23 #55953

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thanm opened this issue Sep 29, 2022 · 10 comments
Open

internal/goexperiment: remove CoverageRedesign some time in 1.23 #55953

thanm opened this issue Sep 29, 2022 · 10 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsFix The path to resolution is known, but the work has not been done.
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@thanm
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thanm commented Sep 29, 2022

This is a tracking issue to remove the "CoverageRedesign" GOEXPERIMENT some time in the Go 1.21 release; at that point hopefully any remaining (potential) bugs/issues with the new coverage design will be ironed out, and we will no longer need the GOEXPERIMENT=nocoverageredesign fallback.

@thanm

@thanm thanm added the NeedsFix The path to resolution is known, but the work has not been done. label Sep 29, 2022
@thanm thanm added this to the Go1.21 milestone Sep 29, 2022
@thanm thanm self-assigned this Sep 29, 2022
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Sep 29, 2022
@thanm thanm modified the milestones: Go1.21, Go1.22 Jun 27, 2023
@AlekSi
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AlekSi commented Aug 17, 2023

I guess the title should be updated too

@thanm thanm changed the title internal/goexperiment: remove CoverageRedesign some time in 1.21 internal/goexperiment: remove CoverageRedesign some time in 1.22 Aug 17, 2023
@thanm
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thanm commented Aug 17, 2023

Thanks. Updated.

@thanm
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thanm commented Aug 17, 2023

Removing the experiment didn't make the 1.21 release, there are still some bugfix CLs not yet submitted (e.g. 495446, 495447, and 495452). Once those go in I should be in a better position to get rid of the experiment.

@tombrown52
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@thanm Is this likely to be removed in 1.22, or bumped to 1.23? (I tried to find links to the issues you included, 495446, 495447, and 495452, but was unsuccessful)

@thanm
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thanm commented Oct 31, 2023

Hi @tombrown52,

Thanks for the note. That last comment I posted was a bit cryptic, sorry about that. "495446, 495447, and 495452" are Gerrit CLs, not issues. These CLs have now been merged, and bugs they were intended to address have been closed. More details with links:

CLs 495446 and 495447 are for issues #18909 and #24570.

CL 495452 is for issue #58770.

My intent was to have these fixed early in this cycle, but for a variety of reasons this didn't happen. As a result we're going to bump the deletion of GOEXPERIMENT=coverageredesign until the next release; with less than a month to go before the freeze, it is better to wait until early in the next cycle.

@tombrown52
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@thanm Thanks for the update!

@thanm
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thanm commented Nov 22, 2023

Bumping milestone to 1.23

@thanm thanm changed the title internal/goexperiment: remove CoverageRedesign some time in 1.22 internal/goexperiment: remove CoverageRedesign some time in 1.23 Nov 22, 2023
@Feggah
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Feggah commented Feb 21, 2024

I have generated packages in my monorepo that I don't want to include in the coverage report. With GOEXPERIMENT=nocoverageredesign they are not included.

If this is removed, how can I remove specific packages from the coverage? For example, I would like to ignore all packages within the paths:

  • sdk/generated/**
  • **/mocks/*

Is it possible to do that configuration in the go test command?

@begelundmuller
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Hi, I'm not able to tell if this issue has been resolved or is tracked elsewhere, but if we don't set GOEXPERIMENT=nocoverageredesign, we get the following errors for two packages in our repository:

github.com/rilldata/rill/proto/gen/rill/admin/v1: open /tmp/go-build1717652986/b205/covmeta.efd544d54abd57024320e5b09e7fbb7333ec3c9e2c058a3d351094eaca3dd4d6: no such file or directory
github.com/rilldata/rill/proto/gen/rill/runtime/v1: open /tmp/go-build1717652986/b324/covmeta.067b3bf4a6ecbbbcd442d5d3dfcb816dbf6bc1aee18591e902bf98c6b115f2e7: no such file or directory

I believe the error originates from here:

mf, err := work.BuildActionCoverMetaFile(a)

It seems there is some edge case in the coverage redesign where BuildActionCoverMetaFile looks for a cover meta file that doesn't exist.

@thanm
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thanm commented Mar 4, 2024

@begelundmuller thanks for the report. The problem you posted about is being tracked in #65653.

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