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Nix + Go

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28 Jan 2024
@k900:0upti.meK900I don't think it runs tests for anything in vendor at least16:01:45
@qbit:tapenet.org@qbit:tapenet.orgit does in my experience16:02:44
@qbit:tapenet.org@qbit:tapenet.orgwell - builds.. so I assume tests as well16:03:08
@k900:0upti.meK900Hmm16:03:25
@k900:0upti.meK900I'm rerunning it with -parallel now16:03:37
@k900:0upti.meK900We'll see where that goes16:03:40
@katexochen:matrix.orgPaul Meyer (katexochen)
In reply to @k900:0upti.me
https://github.com/NixOS/nixpkgs/blob/1e5988ee34cb0c0c5d0db9594f51841455730f54/pkgs/build-support/go/module.nix#L276-L278
This is terrible in general, I'm working on a general rework on how packages to build and test are discovered.
16:07:25
@qbit:tapenet.org@qbit:tapenet.org go test $(go list ./... | grep -v /vendor/) would probably be a good thing to have 16:09:08
@katexochen:matrix.orgPaul Meyer (katexochen)
In reply to @qbit:tapenet.org
it does in my experience
It definitely shouldn't.
https://github.com/NixOS/nixpkgs/blob/e4b4793ffe04112a121d0a23e2010c576bddefdd/pkgs/build-support/go/module.nix#L235
16:09:26
@qbit:tapenet.org@qbit:tapenet.orgnice16:09:55
@katexochen:matrix.orgPaul Meyer (katexochen)
In reply to @qbit:tapenet.org
go test $(go list ./... | grep -v /vendor/) would probably be a good thing to have
yes, my solution uses go list (but is a bit more sophisticated).
16:10:10
@qbit:tapenet.org@qbit:tapenet.org so find should be go list there probably 16:10:10
@qbit:tapenet.org@qbit:tapenet.orgsweet16:10:25
@katexochen:matrix.orgPaul Meyer (katexochen)but it will cause a lot of built failures16:10:46
@katexochen:matrix.orgPaul Meyer (katexochen)as the current way excludes tests in most cases16:11:08
@katexochen:matrix.orgPaul Meyer (katexochen)you can check the following for a preview ;) https://github.com/katexochen/nixpkgs/commits/buildGoModule/tests/16:11:49
@qbit:tapenet.org@qbit:tapenet.orgnice16:12:07
@katexochen:matrix.orgPaul Meyer (katexochen)While I still have some work to do, I think I will just open a draft PR now16:12:14
@k900:0upti.meK900go: flag needs an argument: -parallel (from $GOFLAGS)16:28:13
@k900:0upti.meK900Huh16:28:15
@katexochen:matrix.orgPaul Meyer (katexochen)That should already be done here, shouldn't it? https://github.com/NixOS/nixpkgs/blob/e4b4793ffe04112a121d0a23e2010c576bddefdd/pkgs/build-support/go/module.nix#L20916:34:21
@katexochen:matrix.orgPaul Meyer (katexochen)

Ah, -p is not short for -parallel. But

By default, -parallel is set to the value of GOMAXPROCS.

16:36:30
@katexochen:matrix.orgPaul Meyer (katexochen)GOMAXPROCS might be the thing we actually want to set.16:37:19
@katexochen:matrix.orgPaul Meyer (katexochen) Draft for the go list thing: https://github.com/NixOS/nixpkgs/pull/284568 16:39:48
31 Jan 2024
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6 Feb 2024
@qbit:tapenet.org@qbit:tapenet.orgthe other bummer about our build for go stuff is that we can't take advantage of a global build cache 15:26:06
@qbit:tapenet.org@qbit:tapenet.orgi don't know how it possibly could... just a bummer for speed15:27:23
@katexochen:matrix.orgPaul Meyer (katexochen)Well, I think the way Bazel handles this is by not using the higher level go "build" command but the lower level commands to build each package in separate to get a linkable archive, then invoke the linker on those archives when building the final binary.15:47:09
@qbit:tapenet.org@qbit:tapenet.orginteresting16:23:44

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