bug#28664: Old narinfos of tarballs purged on berlin

[ludo@gnu.org (Ludovic Courtès)]

ludo@gnu.org (Ludovic Courtès) skribis:

> ludo@gnu.org (Ludovic Courtès) skribis:
>
>> ludo@gnu.org (Ludovic Courtès) skribis:
>>
>>> As a followup to <https://bugs.gnu.org/28664>, Ricardo upgraded to the
>>> latest Guix on berlin, and I’ve now removed old .narinfos corresponding
>>> to tarballs for which we potentially lacked the corresponding nar:
>>>
>>>   sudo find /var/cache/guix/publish/none -mtime +7 -exec rm -v {} \;
>>
>> This missed ~100 of them, so I’ve run the following command, which is
>> more accurate:
>>
>>   root@berlin /var/cache/guix/publish/none# rm -v $(for i in *.narinfo ; do [ -f `echo $i | sed -es/narinfo/nar/g` ] || echo $i ; done)
>
> I just did the same on hydra.gnu.org, which was starting to have 404 for
> these substitutes.

With narinfo caching people were starting to get 404s for
mirror.hydra.gnu.org/guix/nar/xyz.  Based on an incomplete log of the
command above, I’ve repopulated /var/cache/guix/publish/none on
hydra.gnu.org in a pretty crude way:

  for i in $(sed -es/'^removed `\([^-]\+\)-.*/\1/g' < /tmp/file-list ); do wget -q -O /dev/null http://localhost:9999/$i.narinfo || echo $i ; done

That’s 1,135 tarballs back in /var/cache/guix/publish/none.

The remaining missing items will come back eventually as narinfo
requests hit ‘guix publish’ itself (i.e., when narinfo caches on user
machines and in nginx have expired).

Ludo’.