From: Simon Tournier <zimon.toutoune@gmail.com>
To: Attila Lendvai <attila@lendvai.name>
Cc: Guix Devel <guix-devel@gnu.org>
Subject: Re: Mechanism for helping in multi-channels configuration
Date: Thu, 15 Feb 2024 22:14:17 +0100 [thread overview]
Message-ID: <8734tt5t1y.fsf@gmail.com> (raw)
In-Reply-To: <7JIyQaT2Ww9Pes7QaxCq6t_7S_IHUSwTe4S3NN0hbjDcdebsmRn2TcITIw32cer2yh8SVoBvmUQUrYeILtay2FyCZA6YrHACinLdM-vgi_g=@lendvai.name>
Hi Attila,
On mar., 06 févr. 2024 at 17:16, Attila Lendvai <attila@lendvai.name> wrote:
>> The wishlist is: provide a machine-readable description on guix-science
>> channel side in order to help in finding the good overlap between
>> commits of different channels.
>
> i wrote about a missing abstraction here:
>
> https://lists.gnu.org/archive/html/guix-devel/2023-12/msg00104.html
You wrote in [1]:
it's probably the same thing that causes the discrepancy between
git commits and substitutes: the build servers are not building
every commit of the git repo. they pick an unpredictable (?)
series of commits, skipping some in between. if i guix pull, or
guix time-machine to the "wrong" commit, then i'll need to build
some stuff locally. sometimes these can be heavy packages.
To my knowledge:
+ ci.guix (Cuirass) fetches every 5 minutes (IIRC) and builds the last
commit.
+ bordeaux.guix (Build Coordinator) fetches the batch from the mailing
list guix-commits:
<https://lists.gnu.org/archive/html/guix-commits/2024-02/msg00795.html>
About CI, yes it is unpredictable. About Bordeaux, it is not really. :-)
1: Re: Should commits rather be buildable or small
Attila Lendvai <attila@lendvai.name>
Sun, 10 Dec 2023 23:20:25 +0000
id:SXjFmdTgxwHYE-Z6t7SZOykuXMBiD454EF2uad96jGQemgJ6hXki_f1C7VxVHKHa4b7_j5UwJmffh_FiQqEz_bIYIBn9tpG4s9F7W1eIDAQ=@lendvai.name
https://lists.gnu.org/archive/html/guix-devel/2023-12
https://yhetil.org/guix/SXjFmdTgxwHYE-Z6t7SZOykuXMBiD454EF2uad96jGQemgJ6hXki_f1C7VxVHKHa4b7_j5UwJmffh_FiQqEz_bIYIBn9tpG4s9F7W1eIDAQ=@lendvai.name
> the git commit log is a too fine-grained granularity here. there
> should be something like a 'guix log' above the git log that could be
> used, among other things, to encode inter-channel dependencies.
Considering the current status and how substitutes are GC, the first
step would be the retention of some substitutes. And thus the
specification for a policy of such retention. It would allow to build a
database that could be queried by this hypothetical “guix log” – which
should be more something under “guix weather” IMHO.
For the interested readers, thread about retention:
Building and caching old Guix derivations for a faster time machine
Ricardo Wurmus <rekado@elephly.net>
Fri, 10 Nov 2023 10:29:28 +0100
id:87o7g29c94.fsf@elephly.net
https://lists.gnu.org/archive/html/guix-devel/2023-11
https://yhetil.org/guix/87o7g29c94.fsf@elephly.net
Substitute retention
Ludovic Courtès <ludovic.courtes@inria.fr>
Tue, 12 Oct 2021 18:04:25 +0200
id:87y26ytek6.fsf_-_@inria.fr
https://lists.gnu.org/archive/html/guix-devel/2021-10
https://yhetil.org/guix/87y26ytek6.fsf_-_@inria.fr
Although I concur with this need, I do not see how it would be help for
detecting compatibility between channels. :-)
Cheers,
simon
next prev parent reply other threads:[~2024-02-15 21:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-03 10:36 Mechanism for helping in multi-channels configuration Simon Tournier
2024-02-03 15:27 ` Christina O'Donnell
2024-02-15 15:05 ` Simon Tournier
2024-03-18 16:05 ` Mechanism for helping in multi-channels configuration (and Xapian index) Christina O'Donnell
2024-05-06 12:05 ` Simon Tournier
2024-02-06 14:18 ` Mechanism for helping in multi-channels configuration Maxim Cournoyer
2024-02-06 17:08 ` Attila Lendvai
2024-02-06 17:16 ` Attila Lendvai
2024-02-15 21:14 ` Simon Tournier [this message]
2024-03-12 12:44 ` Attila Lendvai
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