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bug#41069: cyclically dependent channels crashes guix pull
From: |
zimoun |
Subject: |
bug#41069: cyclically dependent channels crashes guix pull |
Date: |
Mon, 4 May 2020 19:06:16 +0200 |
On Mon, 4 May 2020 at 18:23, Marius Bakke <address@hidden> wrote:
>
> Martin Becze <address@hidden> writes:
>
> > Cyclically dependent channels crashes guix pull. Cyclically dependent
> > channels probably shouldn't happen, but guix pull probably shouldn't go
> > into an endless loop and die either.
>
> Can you provide a channel configuration that reproduces this?
When one channel depends on another one which depends on the first.
This /tmp/channel1/ contains this .guix-channel
--8<---------------cut here---------------start------------->8---
(channel
(version 0)
(dependencies
(channel
(name channel2-from-channel1)
(url "file:///tmp/channel2")
(branch "master"))))
--8<---------------cut here---------------end--------------->8---
This /tmp/channel2/ contains this .guix-channel
--8<---------------cut here---------------start------------->8---
(channel
(version 0)
(dependencies
(channel
(name channel1-from-channel2)
(url "file:///tmp/channel1")
(branch "master"))))
--8<---------------cut here---------------end--------------->8---
And for example, the file 'my-channels.scm' contains:
--8<---------------cut here---------------start------------->8---
(list
(channel
(name 'channel1)
(url "file:///tmp/channel1")
(branch "master"))
(channel
(name 'channel2)
(url "file:///tmp/channel2")
(branch "master"))
(channel
(name 'guix)
(url "https://git.savannah.gnu.org/git/guix.git")
(commit "aea6ab2f4ca060e68f8539cd612b0ce088627557")))
--8<---------------cut here---------------end--------------->8---
Then guix pull -C /tmp/my-channels.scm will be "Updating ..." for ever. :-)
Hope that helps.
All the best,
simon