Re: Preservation of Guix Report 2021-10-31

[zimoun <zimon.toutoune@gmail.com>]

Hi,

I am not able to find in guix-devel archives this email with the
Message-ID 874k8xrn49.fsf@ngyro.com.  Below the complete header.

Do I miss something?


Cheers,
simon


On Sun, 31 Oct 2021 at 15:49, Timothy Sample <samplet@ngyro.com> wrote:
> Hi all!
>
> Here’s a new version of the Preservation of Guix Report:
>
>     <https://ngyro.com/pog-reports/2021-10-31/>
>
> (I hope to publish one every Sunday or so.)
>
> This version has a breakdown by different origin types.  The good news
> is that Git origins are doing very well.  We’ve confirmed that 97.2% of
> the 9,272 Git origins that we’re tracking are in the SWH archive.  Most
> of the progress there is due to zimoun wading through the missing
> packages and telling SWH to store them – thanks, zimoun!
>
> Looking at gzipped tarballs, things are not nearly as nice.  There are
> quite a few old ones that are missing, and quite a few that I haven’t
> been able to identify so far (either because I’m not getting the tarball
> or because Disarchive can’t process it).  There’s a “secret” graph that
> shows that many of these problems are for older commits:
>
>     <https://ngyro.com/pog-reports/2021-10-31/tar-gz-abs-hist.svg>
>
> There’s also an “other” type, which covers everything else.  So far, we
> don’t know anything about these 8,830 fixed-output derivations (they are
> all “unknown”).  There’s a few shortcuts I could take to get information
> on these, and I’m tempted to do so.  I’ve also started working on XZ
> support in Disarchive, which should cover about 2,000 of these.
>
> For the 236 “unknown” Git sources, 132 of them are because of recursive
> checkouts.  Currently, my tools don’t support this, and I believe Guix
> can’t use SWH as a fallback for a recursive checkout (yet).  However,
> the other 104 are little things that could probably be solved directly.
> The problem is that my automated tools can’t find the SWHID.  This is
> either because of things like upstream going down or changing a tag.
> Usually one can find the SWHID manually using the SWH interface.  I’m
> not sure what to do about this at the moment, but it’s a tantalizingly
> small number of sources to fix either by hand or by clever use of
> ‘(guix swh)’.  :)  Here’s a query to list the 104 non-recursive
> “unknown” Git sources:
>
> SELECT *
> FROM fods
>     JOIN fod_references USING (fod_id)
> WHERE is_in_swh IS NULL
>     AND EXISTS (
>             SELECT 1
>             FROM fod_references
>             WHERE fod_references.fod_id = fods.fod_id
>                 AND reference LIKE '(git-reference%')
>     AND reference LIKE '%(recursive? #t)%'
>
>
> -- Tim

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From: Timothy Sample <samplet@ngyro.com>
To: guix-devel@gnu.org
Cc: zimoun <zimon.toutoune@gmail.com>
Subject: Preservation of Guix Report 2021-10-31
Date: Sun, 31 Oct 2021 15:49:10 -0400
Message-ID: <874k8xrn49.fsf@ngyro.com>
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