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Re: guix pull --commit and custom channel ?
From: |
Marius Bakke |
Subject: |
Re: guix pull --commit and custom channel ? |
Date: |
Tue, 14 May 2019 18:55:25 +0200 |
User-agent: |
Notmuch/0.28.3 (https://notmuchmail.org) Emacs/26.2 (x86_64-pc-linux-gnu) |
zimoun <address@hidden> writes:
> Dear,
>
> When speaking about "Scientific Reproducibilty", one would roll-back
> to a previous state of Guix. And it is possible with `guix pull
> --commit=<hash>'.
>
> (noting it is only possible for not too old states, say v0.15 or
> post-inferior?)
>
>
> However, it is not possible to roll-back the state of a custom
> channel. Or I have missed something.
>
> The UI should be: guix pull --commit=channel1:hash1 --commit=channel2:hash2
> or guix pull --commit=channel1:hash1,channel2:hash2
I don't think `guix pull` exposes these options through the CLI yet, but
you can specify exact commit(s) in channels.scm.
> Moreover, is it possible to roll-back with a manifest containing
> several custom channels ?
>
> I imagine something such that:
> guix describe > commits.txt
> then months (or years?) later:
> guix pull --manifest=commits.txt
This is already possible:
$ guix describe -f channels > my-channels.scm
$ guix pull -C my-channels.scm
HTH!
Marius
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