bug#69617: guix go import fails on some version tags

[Tomas Volf]

On 2024-03-07 10:18:52 -0800, Ryan Barber wrote:
> In some cases the "guix import go" command fails when attempting to
> checkout the source for a module using a tag which does not exist in
> the repo.
>
> Upon further investigation, I have found guix/import/go.scm will use
> the version string as tag. While this works most of the time, some
> module vendors use a different tagging scheme. For example, the
> azure-sdk-for-go repository contains many modules and the version tags
> are namespaced by module name.
>
> The tag for version v1.3.0 of azure-sdk-for-go/sdk/storage/azblob is
> storage/azblob/v1.3.0.
>
> $ curl -s 
> 'https://proxy.golang.org/github.com/!azure/azure-sdk-for-go/sdk/storage/azblob/@v/v1.3.0.info'
> | jq
> {
>   "Version": "v1.3.0",
>   "Time": "2024-02-12T16:20:44Z",
>   "Origin": {
>     "VCS": "git",
>     "URL": "https://github.com/Azure/azure-sdk-for-go";,
>     "Subdir": "sdk/storage/azblob",
>     "Ref": "refs/tags/sdk/storage/azblob/v1.3.0",
>     "Hash": "d5dfa9296a115cc5094b14198b7114a64a490994"
>   }
> }
>
> I have a patch to fix this, but I would like to discuss the approach
> before submitting it. Should I reply to this bug report with the
> patch?

I wonder, even if you manage to import it, will go-build-system be able to build
it?  That was what stopped me last time I looked into this, I reached the
conclusion that current go-build-system cannot handle multiple go modules with
overlapping paths.

Out of curiosity, what was your approach to this issue?

>
> Here is the backtrace when attempting to run import on storage/azblob
>
> $ guix import go github.com/Azure/azure-sdk-for-go/sdk/storage/azblob
> Backtrace:
>           14 (primitive-load "/home/rfb/.config/guix/current/bin/guix")
> In guix/ui.scm:
>    2324:7 13 (run-guix . _)
>   2287:10 12 (run-guix-command _ . _)
> In guix/scripts/import.scm:
>      80:6 11 (guix-import . _)
> In ice-9/boot-9.scm:
>   1752:10 10 (with-exception-handler _ _ #:unwind? _ # _)
> In guix/scripts/import/go.scm:
>    116:29  9 (_)
> In ice-9/exceptions.scm:
>    406:15  8 (go-module->guix-package* . _)
> In ice-9/boot-9.scm:
>   1752:10  7 (with-exception-handler _ _ #:unwind? _ # _)
> In guix/import/go.scm:
>    532:19  6 (go-module->guix-package "github.com/Azure/azure-sdk-f…" …)
> In guix/git.scm:
>     295:4  5 (update-cached-checkout _ #:ref _ #:recursive? _ # _ # _ …)
>    281:19  4 (resolve _)
> In git/reference.scm:
>      60:8  3 (_ _ _)
> In git/bindings.scm:
>      77:2  2 (raise-git-error _)
> In ice-9/boot-9.scm:
>   1685:16  1 (raise-exception _ #:continuable? _)
>   1683:16  0 (raise-exception _ #:continuable? _)
>
> ice-9/boot-9.scm:1683:16: In procedure raise-exception:
> Git error: reference 'refs/tags/v1.3.1' not found
>

Have a nice day,
Tomas Volf

--
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

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