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From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: Simon Tournier <zimon.toutoune@gmail.com>
Cc: 65352@debbugs.gnu.org
Subject: [bug#65352] Fix time-machine and network
Date: Tue, 22 Aug 2023 22:56:57 -0400	[thread overview]
Message-ID: <87ttsqa2km.fsf@gmail.com> (raw)
In-Reply-To: <CAJ3okZ0NHQ0z1-+VB+bONKL2y85rb00dc9zjj98MeC9o9C86TQ@mail.gmail.com> (Simon Tournier's message of "Thu, 17 Aug 2023 18:08:38 +0200")

Hi Simon,

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

> Hi Maxim,
>
> On Thu, 17 Aug 2023 at 17:42, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:
>
>> >                       (match ref
>> > -                       ((or ('commit . commit)
>> > -                            ('tag-or-commit . commit))
>> > +                       (('tag-or-commit . commit)
>
>> Not that channel-list is a public API, so this is effectively changing
>> the contract, no?
>
> Well, the contract is not clearly defined. ;-)
>
> The REF is defined by the docstring of update-cached-checkout,
>
>   REF is pair whose key is [branch | commit | tag | tag-or-commit ] and value
>   the associated data: [<branch name> | <sha1> | <tag name> | <string>].
>   If REF is the empty list, the remote HEAD is used.

Good catch, it seems tag is not covered.

> Therefore, if we want to be compliant with the public API, we also
> need to add 'tag' to the 'or' match case; as I suggested when
> commenting your patch tweaking this part. :-)
>
> Well, from my point of view, the alternative is:
>
>  a)
>                      (match ref
>                        (('tag-or-commit . commit)
>                         (channel (inherit c)
>                                  (url url) (commit commit) (branch #f)))
>                        (('branch . branch)
>                         (channel (inherit c)
>                                  (url url) (commit #f) (branch branch)))
>                        (#f
>                         (channel (inherit c) (url url))))
>
> or b)
>                      (match ref
>                        ((or ('commit . commit)
>                             ('tag-or-commit . commit)
>                             ('tag . commit))
>                         (channel (inherit c)
>                                  (url url) (commit commit) (branch #f)))
>                        (('branch . branch)
>                         (channel (inherit c)
>                                  (url url) (commit #f) (branch branch)))
>                        (#f
>                         (channel (inherit c) (url url)))))
>
> but not ecab937897385fce3e3ce0c5f128afba4304187c. :-)

I was driven by my use case where adding support for tag-or-commit was
enough, but I think it'd be a good idea to cover all the potential ref
types documented in update-cached-checkout, so b) makes sense to me.

-- 
Thanks,
Maxim




  reply	other threads:[~2023-08-23  2:58 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1689823648.git.maxim.cournoyer@gmail.com>
2023-07-20 16:34 ` [bug#64746] [PATCH 2/2] scripts: time-machine: Error when attempting to visit too old commits Maxim Cournoyer
2023-07-22  2:00   ` Maxim Cournoyer
2023-08-08 15:58     ` Ludovic Courtès
2023-08-10 14:47       ` Maxim Cournoyer
2023-08-10 16:56         ` Ludovic Courtès
2023-08-11  7:19           ` Josselin Poiret via Guix-patches via
2023-08-12 20:32             ` Ludovic Courtès
2023-08-15 18:57       ` Maxim Cournoyer
2023-08-15 16:14   ` Ludovic Courtès
2023-08-16 14:46     ` Simon Tournier
2023-08-16 18:41       ` Maxim Cournoyer
2023-08-17 14:06         ` [bug#65352] Fix time-machine and network Simon Tournier
2023-08-17 14:09           ` [bug#65352] [PATCH 1/2] guix: git: Fix the procedure reference-available? Simon Tournier
2023-08-17 14:09             ` [bug#65352] [PATCH 2/2] scripts: pull: Remove unused reference pair Simon Tournier
2023-08-17 15:41               ` [bug#65352] Fix time-machine and network Maxim Cournoyer
2023-08-17 16:08                 ` Simon Tournier
2023-08-23  2:56                   ` Maxim Cournoyer [this message]
2023-08-23  8:32                     ` Simon Tournier
2023-08-23 20:25                       ` Maxim Cournoyer
2023-08-21 14:00                 ` Ludovic Courtès
2023-08-21 15:58                   ` Maxim Cournoyer
2023-08-22 16:27                     ` Ludovic Courtès
2023-08-23  2:14                       ` Maxim Cournoyer
2023-08-21 13:57             ` Ludovic Courtès
2023-09-04  8:49             ` Ludovic Courtès
2023-09-04 11:34               ` Simon Tournier
2023-09-05 20:33                 ` Maxim Cournoyer
2023-09-05 20:48                   ` Simon Tournier
2023-09-04  9:32             ` Ludovic Courtès
2023-09-04 17:37               ` Simon Tournier
2023-09-06  0:22                 ` Maxim Cournoyer
2023-09-05 20:39               ` Maxim Cournoyer
2023-09-05 20:56                 ` Simon Tournier
2023-09-06  2:39                   ` Maxim Cournoyer
2023-09-05 13:24             ` bug#65352: " Maxim Cournoyer
2023-09-05 13:43               ` [bug#65352] " Simon Tournier
2023-09-06  0:04                 ` bug#65352: " Maxim Cournoyer
2023-09-06  0:58                   ` [bug#65352] " Simon Tournier
2023-09-06  2:00                     ` Maxim Cournoyer
2023-09-07 11:15                       ` Simon Tournier
2023-09-06 10:32           ` [bug#65352] time-machine, unavailable network or Savannah down Simon Tournier
2023-09-06 14:17             ` [bug#65352] [PATCH v2] DRAFT git: Avoid touching the network unless needed in 'reference-available?' Simon Tournier
2023-09-13 20:16               ` [bug#65352] Fix time-machine and network Ludovic Courtès
2023-09-13  0:32                 ` Simon Tournier
2023-09-14  8:50                   ` Ludovic Courtès
2023-09-14  9:04                   ` Ludovic Courtès
2023-09-14  9:42                     ` Simon Tournier
2023-09-22 13:54                       ` bug#65352: " Simon Tournier
2023-09-25  9:32                     ` [bug#65352] " Ludovic Courtès
2023-09-25  9:57                       ` Simon Tournier
2023-09-25 11:21                         ` Simon Tournier
2023-09-25 15:01                         ` Ludovic Courtès
2023-09-25 15:58                           ` Simon Tournier
2023-09-06 17:41             ` [bug#65352] time-machine, unavailable network or Savannah down Maxim Cournoyer
2023-09-06 23:21               ` Simon Tournier
2023-08-15 19:44   ` [bug#64746] [PATCH v2 1/3] git: Clarify commit relation reference in doc Maxim Cournoyer
2023-08-15 19:44     ` [bug#64746] [PATCH v2 2/3] pull: Tag commit argument with 'tag-or-commit Maxim Cournoyer
2023-08-16 15:02       ` Simon Tournier
2023-08-16 18:47         ` Maxim Cournoyer
2023-08-17 14:45           ` Simon Tournier
2023-08-17 18:16             ` Maxim Cournoyer
2023-08-17 18:47               ` Simon Tournier
2023-08-23  2:54                 ` [bug#64746] [PATCH 2/2] scripts: time-machine: Error when attempting to visit too old commits Maxim Cournoyer
2023-08-23  8:27                   ` Simon Tournier
2023-08-15 19:44     ` [bug#64746] [PATCH v2 3/3] " Maxim Cournoyer
2023-08-16 15:39       ` Simon Tournier
2023-08-17  1:41         ` bug#64746: " Maxim Cournoyer

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