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From: "Ludovic Courtès" <ludo@gnu.org>
To: Pierre Neidhardt <mail@ambrevar.xyz>
Cc: help-guix <help-guix@gnu.org>
Subject: Re: Single channel update (or channels vs. GUIX_PACKAGE_PATH)
Date: Tue, 12 Feb 2019 17:36:26 +0100	[thread overview]
Message-ID: <87ftsthsl1.fsf@gnu.org> (raw)
In-Reply-To: <87tvhiq80t.fsf@ambrevar.xyz> (Pierre Neidhardt's message of "Tue, 05 Feb 2019 21:45:22 +0100")

Pierre Neidhardt <mail@ambrevar.xyz> skribis:

> Ricardo Wurmus <rekado@elephly.net> writes:
>> It’s just a list.  You can cons onto it.
>
> What I meant is that it does not seem possible to
>
> (list (channel
>        (inherit %default-channels
> 			 (commit "..."))))
>
> Or even
>
>   (set-channel-commit %default-channels "...")
>
> But maybe it's not worth it considering it's only 4 lines.

‘%default-channels’ is a list, not a <channel> record, so what you
suggest above cannot work.

But you can do:

  (list (channel
          (inherit (first %default-channels))
          …))

That’s what the stable-channel trick I posted does.

Ludo’.

  reply	other threads:[~2019-02-12 16:36 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-04 23:16 Single channel update (or channels vs. GUIX_PACKAGE_PATH) Pierre Neidhardt
2019-02-04 23:24 ` John Soo
2019-02-05 17:52   ` Pierre Neidhardt
2019-02-05 20:02     ` Ricardo Wurmus
2019-02-05 20:45       ` Pierre Neidhardt
2019-02-12 16:36         ` Ludovic Courtès [this message]
2019-02-12 17:26           ` Pierre Neidhardt
2019-02-09  8:43   ` Chris Marusich

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