GNU bug report logs - #47670
[PATCH 0/2] Add updater for packages hosted as SourceHut Git repositories

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Message #29 received at 47670 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Xinglu Chen <public <at> yoctocell.xyz>
Cc: 47670 <at> debbugs.gnu.org
Subject: Re: bug#47670: [PATCH 0/2] Add updater for packages hosted as
 SourceHut Git repositories
Date: Sun, 06 Jun 2021 15:23:22 +0200

Hi!

Xinglu Chen <public <at> yoctocell.xyz> skribis:

> On Fri, Apr 09 2021, Xinglu Chen wrote:
>
>> On Fri, Apr 09 2021, Léo Le Bouter via Guix-patches via wrote:
>>
>>> Is that an autogenerated tarball? I am under the impression that usage
>>> of those is banned in GNU Guix, and that there's a lint pass for it.
>>> What do you use these autogenerated tarballs for? Is the 'ls-remote'
>>> command not enough to replace the version and hash?
>>
>> The GitHub updater fetches the autogenerated tarball so that's what I
>> did as well.  I wasn't aware about the fact that we would like to avoid
>> them.
>>
>>> GNU Guix uses shallow clones (AIUI) to save bandwidth, do you need
>>> this to generate the hash? I encourage you use the same shallow clone
>>> mechanism here, so it's more generic and not specific to Sourcehut.
>>
>> Ok, I will use shallow clones to make it more generic.
>
> Umm, the 'upstream-source-compiler' uses 'url-fetch' to fetch the url, I
> guess we would have to make it support Git repositories first.

Yes, that’s a limitation of (guix upstream) right now.
‘%method-updates’ was a first step in the direction of supporting Git
repos.

Now, I agree with Léo that (1) this is not SourceHut-specific, and (2)
it should not download generated archives.

Also, I’d prefer to have the code rely on Guile-Git to list tags rather
than invoking ‘git’, if possible.  Perhaps that code could leave in its
own (guix import git) module or similar, rather than in (guix
gnu-maintenance), which already has little to do with GNU maintenance at
this point.  :-)

Thoughts?

Ludo’.

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