GNU bug report logs - #57306
guix pull to old commit fails due to unsupported manifest format

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Arun Isaac <arunisaac <at> systemreboot.net>
Subject: bug#57306: closed (Re: bug#57306: guix pull to old commit fails
 due to unsupported manifest format)
Date: Wed, 31 Aug 2022 11:07:03 +0000

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Your bug report

#57306: guix pull to old commit fails due to unsupported manifest format

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 57306 <at> debbugs.gnu.org.

-- 
57306: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=57306
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Arun Isaac <arunisaac <at> systemreboot.net>
Cc: 57306-done <at> debbugs.gnu.org, zimoun <zimon.toutoune <at> gmail.com>
Subject: Re: bug#57306: guix pull to old commit fails due to unsupported
 manifest format
Date: Wed, 31 Aug 2022 13:06:20 +0200

Hi,

Arun Isaac <arunisaac <at> systemreboot.net> skribis:

>> I do not think it is related to guix-daemon and I think it is expected;
>> indeed it could be considered as a bug.  The command-line,
>>
>>     guix pull --commit=xyz -p /tmp/test
>>
>> writes /tmp/test/manifest using the current Guix (say manifest 4) and
>> not using Guix at commit xyz (say manifest 3).  Contrary to “guix
>> time-machine --commit=xyz”.
>
> Ah, that makes sense! Any ideas as to how this issue might be fixed?

I fixed it in 67a6828b2bb821274757f686f7c685b664339a96 using the same
trick as earlier.

Thanks!

Ludo’.

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From: Arun Isaac <arunisaac <at> systemreboot.net>
To: bug-guix <at> gnu.org
Subject: guix pull to old commit fails due to unsupported manifest format
Date: Sat, 20 Aug 2022 15:07:31 +0530

When I guix pull to 6f75565b4ec3b8a7247699c327a3b3196c787f76, activate
the profile and run guix describe, it fails with an "unsupported
manifest format" error.

--8<---------------cut here---------------start------------->8---
$ guix pull --commit=6f75565b4ec3b8a7247699c327a3b3196c787f76 -p
/tmp/test
$ source /tmp/test/etc/profile
$ guix describe
guix describe: error: unsupported manifest format
--8<---------------cut here---------------end--------------->8---

This happens because my guix-daemon writes a version 4 manifest and the
guix from commit 6f75565b4ec3b8a7247699c327a3b3196c787f76 only
understands a version 3 manifest.

This may be related to https://issues.guix.gnu.org/56545

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