[bug#65352] Fix time-machine and network

["Ludovic Courtès" <ludo@gnu.org>]

Hi,

Simon Tournier <zimon.toutoune@gmail.com> skribis:

> On Wed, 13 Sep 2023 at 22:16, Ludovic Courtès <ludo@gnu.org> wrote:
>
>>> +    (('commit . (? commit-id? commit))
>>> +     (let ((oid (string->oid commit)))
>>> +       (->bool (commit-lookup repository oid))))
>>> +    ((or ('tag . str)
>>> +         ('tag-or-commit . str))
>>> +     (false-if-git-not-found
>>> +      (->bool (resolve-reference repository ref))))
>>
>> IIUC, the differences compared to what we had are:
>>
>>   1. 'tag references are now handled on the fast path
>>      (‘reference-available?’ can return #t);
>>
>>   2. short commit strings are now always on the slow path
>>      (‘reference-available?’ always returns #f).
>>
>> Is that correct?
>
> No

Sorry, could you explain what the difference is then on the hunk I
quoted?

  https://issues.guix.gnu.org/65352#34-lineno11

I see different treatment of short commit IDs and tags, and no
difference for full commit IDs.

Thanks,
Ludo’.