GNU bug report logs - #78580
[PATCH] pull: allow filtering which channels to pull from the CLI

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From: Sergio Pastor Pérez <sergio.pastorperez <at> gmail.com>
To: Sergey Trofimov <sarg <at> sarg.org.ru>
Cc: Josselin Poiret <dev <at> jpoiret.xyz>, Tobias Geerinckx-Rice <me <at> tobias.gr>, Maxim Cournoyer <maxim.cournoyer <at> gmail.com>, Simon Tournier <zimon.toutoune <at> gmail.com>, Mathieu Othacehe <othacehe <at> gnu.org>, Ludovic Courtès <ludo <at> gnu.org>, Gabriel Wicki <gabriel <at> erlikon.ch>, Christopher Baines <guix <at> cbaines.net>, 78580 <at> debbugs.gnu.org
Subject: [bug#78580] [PATCH v2] pull: allow filtering which channels to pull from the CLI
Date: Sun, 25 May 2025 12:20:55 +0200

Sergey Trofimov <sarg <at> sarg.org.ru> writes:
> Hi, 
>
> Sergio Pastor Pérez <sergio.pastorperez <at> gmail.com> writes:
>
>> Sergey Trofimov <sarg <at> sarg.org.ru> writes:
>>>> Once thing we could do, is to pin the Guix channel to the current commit
>>>> so it does not pull. I can try to implement that if you would like to
>>>> have that behaviour.
>>>
>>> It'd be nice, otherwise one would need to use `--commit=$(guix describe
>>> ...)` which might work, but is not that user friendly.
>>
>> Done[1] :)
>>
>> Please let me know if you have any more feedback!
>>
>> [1] https://issues.guix.gnu.org/78580#5
>
> Ok, after a test I see it does something unexpected. I have 4 channels
> in my system (guix/nonguix/sops/personal). After `guix pull nonguix`
> I've ended up with a generation containing only guix and nonguix, other
> channels were gone. If I get your intent right, then instead of
> `filter-channels` you need to implement `unpin-channels`, so that the
> new generation is built from the current channels and the ones specified
> by the user are updated.

You are right. I did not realise that the internals of `guix pull' does
not take a list of channels to update but a whole channel profile to
deploy I will correct.

Thanks for pointing it out.

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