Subject: Re: [bug#58339] ’guix shell’ not working with GUIX_EXTENSIONS_PATH

From: zimoun <[email-masked]>
Date: Fri, 07 Oct 2022 10:21:06 +0200

Hi Liliana,

Thanks for your feedback.

On jeu., 06 oct. 2022 at 21:58, Liliana Marie Prikler <[email-masked]> wrote:

About this:

> 2. Testing the extension via `guix shell'

We need to open another issue because it is not related to the current
patch (proposal for a simple example of an extensions); this point #2 is
an issue about all the extensions.

For instance, let consider guix-modules [1].  It reads,

--8<---------------cut here---------------start------------->8---
$ guix install guix-modules
$ export GUIX_EXTENSIONS_PATH="$HOME/.guix-profile/share/guix/extensions"
--8<---------------cut here---------------end--------------->8---

and if instead, one uses a shell, it fails:

--8<---------------cut here---------------start------------->8---
$ guix shell guix-modules -- guix module -h
guix: module: command not found
Try `guix --help' for more information.

$ guix shell guix-modules
[env]$ guix module -h
guix: module: command not found
Try `guix --help' for more information.
--8<---------------cut here---------------end--------------->8---

Note that the variable GUIX_EXTENSIONS_PATH is listed in etc/profile,

--8<---------------cut here---------------start------------->8---
[env]$ cat $GUIX_ENVIRONMENT/etc/profile
# Source this file to define all the relevant environment variables in Bash
# for this profile.  You may want to define the 'GUIX_PROFILE' environment
# variable to point to the "visible" name of the profile, like this:
#
#  GUIX_PROFILE=/path/to/profile ; \
#  source /path/to/profile/etc/profile
#
# When GUIX_PROFILE is undefined, the various environment variables refer
# to this specific profile generation.

export GUIX_EXTENSIONS_PATH="${GUIX_PROFILE:-/gnu/store/qhfy9wwzg98a0j3i88qaxdmy19rvp0s8-profile}/share/guix/extensions${GUIX_EXTENSIONS_PATH:+:}$GUIX_EXTENSIONS_PATH"
--8<---------------cut here---------------end--------------->8---

Well, another issue with extensions. :-)

1:
<https://hpc.guix.info/blog/2022/05/back-to-the-future-modules-for-guix-packages/>

Cheers,
simon