GNU bug report logs - #73294
"guix shell -- anything" does not look for manifests

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: lgcoelho <at> disroot.org
To: bug-guix <at> gnu.org
Subject: "guix shell -- anything" does not look for manifests
Date: Mon, 16 Sep 2024 14:40:23 +0200

[Message part 1 (text/plain, inline)]

Hello,

Currently, if you have an authorized manifest available and want to run 
some command (for example htop) provided by the manifest, you need to

--8<---------------cut here---------------start------------->8---

$ guix shell
$ htop

--8<---------------cut here---------------end--------------->8---
as supplying a command for guix shell makes it to not look for 
manifests, and instead simply create a empty environment.

--8<---------------cut here---------------start------------->8---

$ guix shell -- htop
guix shell: warning: no packages specified; creating an empty 
environment
guix shell: error: htop: command not found

--8<---------------cut here---------------end--------------->8---

Which doesn't seems a desirable behavior to me. Could we fix it?

Thanks in advance,
Luis

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Message #8 received at 73294 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: lgcoelho <at> disroot.org
Cc: 73294 <at> debbugs.gnu.org
Subject: Re: bug#73294: "guix shell -- anything" does not look for manifests
Date: Mon, 30 Sep 2024 23:04:23 +0200

Hi,

lgcoelho <at> disroot.org skribis:

> Currently, if you have an authorized manifest available and want to run 
> some command (for example htop) provided by the manifest, you need to
>
>
> $ guix shell
> $ htop
>
> as supplying a command for guix shell makes it to not look for 
> manifests, and instead simply create a empty environment.
>
>
> $ guix shell -- htop
> guix shell: warning: no packages specified; creating an empty 
> environment
> guix shell: error: htop: command not found
>
> Which doesn't seems a desirable behavior to me. Could we fix it?

This is the documented behavior: ‘manifest.scm’ and ‘guix.scm’ are read
only for interactive use, meaning without ‘--’:

  https://guix.gnu.org/manual/devel/en/html_node/Invoking-guix-shell.html

The rationale for it is that non-interactive uses of ‘guix shell’ would
always be self-contained.

This was arguably a very conservative choice but I’m not sure we can
change it at this stage.  Thoughts?

Ludo’.

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