bug#44344: [PATCH] guix: describe: Improve package provenance tracking.

[Julien Lepiller]

Le 3 novembre 2020 04:17:53 GMT-05:00, "Ludovic Courtès" <ludo@gnu.org> a écrit 
:
>Hi,
>
>Julien Lepiller <julien@lepiller.eu> skribis:
>
>> So it seems that I cannot reproduce che bug either when using guix
>timekmachine and a channel that has not been pulled by guix. I suppose
>in the case of timekmachine, it doesn't add ~/.config/guix to the
>search path, so the information is found.
>>
>> Can you try pulling this channel with guix itself? You should be able
>to reproduce then.
>
>I tried this and got the same result:
>
>--8<---------------cut here---------------start------------->8---
>$ guix pull -C /tmp/channels.scm -p /tmp/test
>Updating channel 'guix-hpc' from Git repository at
>'https://gitlab.inria.fr/guix-hpc/guix-hpc.git'...
>Updating channel 'guix' from Git repository at
>'https://git.savannah.gnu.org/git/guix.git'...
>
>[...]
>
>$ /tmp/test/bin/guix repl
>GNU Guile 3.0.4
>Copyright (C) 1995-2020 Free Software Foundation, Inc.
>
>Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
>This program is free software, and you are welcome to redistribute it
>under certain conditions; type `,show c' for details.
>
>Enter `,help' for help.
>scheme@(guix-user)> ,use(guix)
>scheme@(guix-user)> ,use(gnu)
>scheme@(guix-user)> ,use(guix describe)
>scheme@(guix-user)> ,use(inria storm)
>scheme@(guix-user)> (package-provenance starpu)
>$1 = ((repository (version 0) (url
>"https://git.savannah.gnu.org/git/guix.git";) (branch "master") (commit
>"7a9e68cc8750a9b378ae54a42d3e882a2e548c95") (introduction
>(channel-introduction (version 0) (commit
>"9edb3f66fd807b096b48283debdcddccfea34bad") (signer "BBB0 2DDF 2CEA
>F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))) (repository (version 0) (url
>"https://gitlab.inria.fr/guix-hpc/guix-hpc.git";) (branch "master")
>(commit "bf3afdd85c68ee022b863da72b90e0c304b11bee")))
>scheme@(guix-user)> ,use(gnu packages base)
>scheme@(guix-user)> (package-provenance grep)
>$2 = ((repository (version 0) (url
>"https://git.savannah.gnu.org/git/guix.git";) (branch "master") (commit
>"7a9e68cc8750a9b378ae54a42d3e882a2e548c95") (introduction
>(channel-introduction (version 0) (commit
>"9edb3f66fd807b096b48283debdcddccfea34bad") (signer "BBB0 2DDF 2CEA
>F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))))
>--8<---------------cut here---------------end--------------->8---
>
>Let me know if you can reproduce it somehow, otherwise we can close
>this
>issue.

Ah! I found where the issue was. Since I'm using the guix home manager, I added 
~/.config/guix to my GUILE_LOAD_PATH, which is added to %load-path very early, 
so for anything that's added afterwards, I get #f. The reason I had to extend 
GUILE_LOAD_PATH was to be able to use the guix home subcommand. Without it the 
command was not looked up with the correct search path and was not found.

>
>Ludo’.