Subject: bug#54097: closed (go importer does not honor multi-module repositories)

From: [email-masked] (GNU bug Tracking System)
Date: Thu, 24 Jul 2025 22:14:01 +0000

Your bug report

#54097: go importer does not honor multi-module repositories

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
54097: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54097
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: go importer does not honor multi-module repositories
From: Sharlatan Hellseher <[email-masked]>
To: [email-masked]
Date: Thu, 24 Jul 2025 23:12:52 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

Closing as Golang import support submodules/monorepos/subbdir model
during recursive import.

For go.mod build system, please refer to <https://codeberg.org/guix/guix/pulls/88 >

--
Thanks,
Oleg

Subject: go importer does not honor multi-module repositories
From: Björn Höfling <[email-masked]>
To: <[email-masked]>
Date: Mon, 21 Feb 2022 23:43:54 +0100
List-Id: <debbugs-submit.debbugs.gnu.org>

Go usually has the 1 repository=1 module convention. However, it
is also allowed that one repository contains multiple go modules.

If repository "foo" contains only one module, then versions are tagged
"v1.2.3".

However, if the repository "foo" contains modules "bar" and "baz", each
in a sub-directory of "foo", the versions will be tagged with their
respective prefix, i.e.:

foo/v1.2.3
bar/v4.5.6

See here:

https://github.com/golang/go/wiki/Modules#publishing-a-release
https://github.com/golang/go/wiki/Modules#faqs--multi-module-repositories
https://stackoverflow.com/questions/64701064/golang-separate-versioning-of-multiple-modules

However, our go-importer does not honor this. The Google Cloud API
modules are structured into sub-modules, but our importer searches the
wrong tag and raises an exception:

$ ./pre-inst-env guix import go cloud.google.com/go/storage
URL FOR VERSIONS: https://proxy.golang.org/cloud.google.com/go/storage/@v/list
FETCH_GO_MOD: https://proxy.golang.org/cloud.google.com/go/storage/@v/v1.21.0.mod
Backtrace:
In ice-9/boot-9.scm:
  1752:10 17 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
          16 (apply-smob/0 #<thunk 7f5b3d24f0c0>)
In ice-9/boot-9.scm:
    724:2 15 (call-with-prompt _ _ #<procedure default-prompt-handle?>)
In ice-9/eval.scm:
    619:8 14 (_ #(#(#<directory (guile-user) 7f5b3d255c80>)))
In guix/ui.scm:
   2209:7 13 (run-guix . _)
  2172:10 12 (run-guix-command _ . _)
In guix/scripts/import.scm:
   124:11 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:
   525:18  6 (go-module->guix-package "cloud.google.com/go/storage" # ?)
In guix/git.scm:
    277:4  5 (update-cached-checkout _ #:ref _ #:recursive? _ # _ # _ ?)
   266:18  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/v1.21.0' not found

The correct git reference to look for is:

refs/tags/storage/v1.21.0

Björn