GNU bug report logs - #50960
[PATCH 00/10] Add 'guix shell' to subsume 'guix environment'

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Message #167 received at 50960 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludovic.courtes <at> inria.fr>
To: Konrad Hinsen <konrad.hinsen <at> fastmail.net>
Cc: 50960 <at> debbugs.gnu.org
Subject: Re: bug#50960: [PATCH 00/10] Add 'guix shell' to subsume 'guix
 environment'
Date: Thu, 07 Oct 2021 10:34:24 +0200

Hi Konrad,

Konrad Hinsen <konrad.hinsen <at> fastmail.net> skribis:

> Looking at the proposal and then the discussion, I wonder if the main
> issue with "guix shell" is that it's two very different things wrapped
> into one:
>
>   1) A convenience utility for interactive work, in particular software
>      development, implemented as "guix shell" with no arguments.
>
>   2) A modernized "guix environment" for both interactive and scripting
>      use.

To me it’s the same as ‘guix environment’, but with a slightly different
command-line interface; ‘guix environment’ was already serves these two
use cases.

> The behavior of "guix shell" with and without arguments is sufficiently
> different, which will make it a challenge to document, and then a
> challenge for users to understand. And part of the criticism related to
> the tacit execution of files is about the convenience for 1) vs. the
> risk in 2).

‘guix shell’ without arguments is equivalent to ‘guix environment -f
guix.scm’ or ‘guix environment -m manifest.scm’.

> So... how about making this two different commands? They could of course
> share most of the implementation.
>
> I'd use "guix shell" for the scenario that actually starts a shell, and
> something different, perhaps "guix process", for the infrastructure
> command for use in scripts.

I don’t think there’s enough to warrant two different commands (and
perhaps we could leave out the auto-detection of ‘guix.scm’ or
‘manifest.scm’ is that proves to be too controversial).

Maybe you’re hinting at the name and the fact that it suggests it’s
starting a shell.  I’m not fond of it, notably for that reason.  For the
record, it came out as the only proposal that seemed viable to me:

  https://issues.guix.gnu.org/38529#17

Thoughts?

Thanks for your feedback,
Ludo’.

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