#28659 - Content-addressed mirror is not used upon invalid hash

Package	Source(s)		Maintainer(s)
guix		PTS Buildd Popcon

Message #48 received at 28659@debbugs.gnu.org (full text, mbox, reply):

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From: ludo@gnu.org (Ludovic Courtès)
To: Jan Nieuwenhuizen <janneke@gnu.org>
Subject: Re: bug#28659: v0.13: guix pull fails;
 libgit2-0.26.0 and 0.25.1 content hashes fail
References: <877ewf18d4.fsf@gnu.org> <87o9ppoabw.fsf@gnu.org>
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Jan Nieuwenhuizen <janneke@gnu.org> skribis:

> Ludovic Courtès writes:

[...]

>> Perhaps we should make content-addressed mirrors configurable in a way
>> that’s orthogonal to derivations, something similar in spirit to
>> --substitute-urls?  The difficulty is that content-addressed mirrors are
>> not just URLs; see (guix download).
>
> Hmm.  I'm not sure what problem we are solving.  Should we only do this
> for github(-like) tarballs?  Do we see this problem with other sources,
> should we prevent it?  Possibly github will never do something like this
> again.  Or we could banish github/gitlab(?) auto-generated tarballs and
> go for git checkouts+commits?

Content-addressed mirrors help with disappearing and modified tarballs
in general; it’s not just GitHub.

Occasionally we see that problem with tarballs coming from elsewhere:
404 is quite frequent, and in-place modification happens from time to
time (even on ftp.gnu.org…).

Ludo’.

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#28659 Content-addressed mirror is not used upon invalid hash