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Re: How to install previous versions?
From: |
zimoun |
Subject: |
Re: How to install previous versions? |
Date: |
Fri, 9 Oct 2020 18:37:44 +0200 |
Hi,
On Fri, 9 Oct 2020 at 19:19, Zelphir Kaltstahl
<zelphirkaltstahl@posteo.de> wrote:
> http://data.guix.gnu.org/repository/1/branch/master/package/python-redis.
On this web page, you can click on the date: first commit and last
commit known to have this version. You can even see the status
(build, failed, pending, etc.) on this web page (appending
'output-history')
http://data.guix.gnu.org/repository/1/branch/master/package/python-redis/output-history
For example, clicking leads to:
http://data.guix.gnu.org/revision/f5111b4d2b982d58387188bc3018e4dd2e9a9d4f
And this gives you the commit with 'python-redis@3.8', using the command:
guix time-machine --commit=f5111b \
-- environment --ad-hoc python-redis python \
-- python
> So how would I need to write my manifest.scm or my one-liner to get back
> to that older version?
The best is to write a manifest file, say manifest.scm containing the
package you need:
--8<---------------cut here---------------start------------->8---
(specfications->manifest
(list
"python-redis"
"python"
"foo"
"bar"
"etc"))
--8<---------------cut here---------------end--------------->8---
The other no-so-said is to track "guix describe", you *should* _track_
the file channels.scm:
guix describe -f channels.scm
Then later or on another machine, you simply run the command:
guix time-machine -C path/to/channels.scm \
-- <subcommand> -m path/to/manifest.scm <options>
Hope that helps,
simon