Subject: [bug#39547] Addition of %content-addressed-mirrors to sources.json (SWH)?

From: zimoun <[email-masked]>
Date: Fri, 6 Mar 2020 10:26:36 +0100

Hi Ludo,

On Thu, 5 Mar 2020 at 17:19, Ludovic Courtès <[email-masked]> wrote:
> zimoun <[email-masked]> skribis:
>
> > Some upstream sources could disappear between the moment when the
> > package enters in Guix and the moment when SWH ingests it. (As an edge
> > case, let consider the recent harfbuzz one.)
> >
> > Now the format 'sources.json' should accept an array. Does it make
> > sense to put in this array the content addressed mirrors
> > (ci.guix.gnu.org and tarball.nixos.org)?
>
> Yes, I think ‘sources.json’ should contain, for each item, a list of
> URLs rather than a single URL, and mirror:// URLs should be expanded.

Yes, now it is accepted [1] and it becomes the format of the
'sources.json' file.

[1] https://forge.softwareheritage.org/D2025#65063

The patch set v2 supports the first discussion of the format (single
url); which is not relevant anymore.
The patch set attached in v3 [2] supports the array of URLs.

[2] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39547#35

> However, ‘sources.json’ is currently specified to contain a single URL,
> so we’re stuck with a single URL for now.
>
> Is that what you meant?

What I mean is: append %content-addressed-mirrors for each package in
the list of URLs.

Cheers,
simon