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From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH 10/10] get_short_sha1: list ambiguous objects on error
Date: Mon, 26 Sep 2016 13:34:13 -0400	[thread overview]
Message-ID: <20160926173413.prp3wevf6kkksy7c@sigill.intra.peff.net> (raw)
In-Reply-To: <xmqqwphytvp3.fsf@gitster.mtv.corp.google.com>

On Mon, Sep 26, 2016 at 10:30:48AM -0700, Junio C Hamano wrote:

> Jeff King <peff@peff.net> writes:
> 
> > We also restrict the list to those that match any
> > disambiguation hint. E.g.:
> >
> >   $ git rev-parse b2e1:foo
> >   error: short SHA1 b2e1 is ambiguous
> >   hint: The candidates are:
> >   hint:   b2e1196 tag v2.8.0-rc1
> >   hint:   b2e11d1 tree
> >   hint:   b2e1632 commit 2007-11-14 - Merge branch 'bs/maint-commit-options'
> >   fatal: Invalid object name 'b2e1'.
> >
> > does not bother reporting the blobs, because they cannot
> > work as a treeish.
> 
> That's a nice touch, and it even comes free--how wonderful.
> 
> It somehow felt strange to have an expensive (compared to no-op,
> anyway) loop whose only externally visible effect is to call
> advise(), but there does not appear to be a way to even disable this
> advise() output, so it probably is OK, I guess.

Right, advise() always has an effect. But that reminds me.  I wasn't
sure if we should attach an advice.* config to this. If we do, then the
right place to put the conditional is right after the error() call in
get_short_sha1().

Since it's attached to an error path, I'm guessing nobody will be too
upset about it, so my inclination was to wait and let somebody add the
conditional advice code if they're bothered.

-Peff

  reply	other threads:[~2016-09-26 17:34 UTC|newest]

Thread overview: 111+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-26  1:39 Changing the default for "core.abbrev"? Linus Torvalds
2016-09-26  3:46 ` Junio C Hamano
2016-09-26  4:34   ` Jeff King
2016-09-26  4:45     ` Junio C Hamano
2016-09-26 11:57       ` [PATCH 0/10] helping people resolve ambiguous sha1s Jeff King
2016-09-26 11:59         ` [PATCH 01/10] get_sha1: detect buggy calls with multiple disambiguators Jeff King
2016-09-26 16:37           ` Junio C Hamano
2016-09-26 17:21             ` Jeff King
2016-09-26 17:50               ` Junio C Hamano
2016-09-26 11:59         ` [PATCH 02/10] get_sha1: avoid repeating ourselves via ONLY_TO_DIE Jeff King
2016-09-26 11:59         ` [PATCH 03/10] get_sha1: propagate flags to child functions Jeff King
2016-09-26 11:59         ` [PATCH 04/10] get_short_sha1: peel tags when looking for treeish Jeff King
2016-09-26 12:11           ` Jeff King
2016-09-26 16:55           ` Junio C Hamano
2016-09-26 17:23             ` Jeff King
2016-09-26 12:00         ` [PATCH 05/10] get_short_sha1: refactor init of disambiguation code Jeff King
2016-09-26 12:00         ` [PATCH 06/10] get_short_sha1: NUL-terminate hex prefix Jeff King
2016-09-26 17:10           ` Junio C Hamano
2016-09-26 17:25             ` Jeff King
2016-09-26 17:36               ` Junio C Hamano
2016-09-26 12:00         ` [PATCH 07/10] get_short_sha1: mark ambiguity error for translation Jeff King
2016-09-26 12:00         ` [PATCH 08/10] sha1_array: let callbacks interrupt iteration Jeff King
2016-09-26 12:00         ` [PATCH 09/10] for_each_abbrev: drop duplicate objects Jeff King
2016-09-26 12:00         ` [PATCH 10/10] get_short_sha1: list ambiguous objects on error Jeff King
2016-09-26 16:36           ` Linus Torvalds
2016-09-27  5:42             ` Jacob Keller
2016-09-27 12:38             ` Jeff King
2016-09-29 13:01             ` Kyle J. McKay
2016-09-29 13:24               ` Jeff King
2016-09-29 14:36                 ` Kyle J. McKay
2016-09-29 14:55                   ` Jeff King
2016-09-26 17:30           ` Junio C Hamano
2016-09-26 17:34             ` Jeff King [this message]
2016-09-26 17:39               ` Junio C Hamano
2016-09-29 11:46           ` Kyle J. McKay
2016-09-29 13:03             ` Jeff King
2016-09-29 17:19               ` Junio C Hamano
2016-09-30  5:51                 ` Jacob Keller
2019-02-04 16:12     ` [RFC/PATCH] core.abbrev doc: document and test the abbreviation length Ævar Arnfjörð Bjarmason
2019-02-04 19:13       ` Junio C Hamano
2019-02-04 20:04       ` Junio C Hamano
2019-02-04 21:36         ` Ævar Arnfjörð Bjarmason
2019-02-04 23:32         ` Jeff King
2019-02-04 23:50           ` Ævar Arnfjörð Bjarmason
2019-02-06 18:29             ` Jeff King
2019-02-06 18:36               ` Ævar Arnfjörð Bjarmason
2016-09-26  6:33   ` Changing the default for "core.abbrev"? Matthieu Moy
2016-09-26 12:09     ` Jeff King
2016-09-29 13:01   ` Kyle J. McKay
2016-09-26  7:13 ` Christian Couder
2016-09-28 23:30 ` [PATCH 0/4] raising core.abbrev default to 12 hexdigits Junio C Hamano
2016-09-28 23:30   ` [PATCH 1/4] config: allow customizing /etc/gitconfig location Junio C Hamano
2016-09-29  9:53     ` Jakub Narębski
2016-09-29 17:20       ` Junio C Hamano
2016-09-29 17:45         ` Matthieu Moy
2016-09-28 23:30   ` [PATCH 2/4] t13xx: do not assume system config is empty Junio C Hamano
2016-09-29  9:01     ` Jeff King
2016-09-29 18:13       ` Junio C Hamano
2016-09-29 18:26         ` Jeff King
2016-09-29 18:57           ` Junio C Hamano
2016-09-29 19:18             ` Jeff King
2016-09-29 19:57               ` Junio C Hamano
2016-09-29 19:06           ` Junio C Hamano
2016-09-29 19:26             ` Jeff King
2016-09-29 21:03               ` Junio C Hamano
2016-09-29 21:08                 ` Jeff King
2016-09-28 23:30   ` [PATCH 3/4] worktree: honor configuration variables Junio C Hamano
2016-09-28 23:30   ` [PATCH 4/4] core.abbrev: raise the default abbreviation to 12 hexdigits Junio C Hamano
2016-09-29  2:44     ` SZEDER Gábor
2016-09-29  5:27       ` Lukas Fleischer
2016-09-29  9:22         ` Jeff King
2016-09-29  9:15       ` Jeff King
2016-09-29 10:03         ` Matthieu Moy
2016-09-29 12:52         ` SZEDER Gábor
2016-09-29  5:58     ` Johannes Sixt
2016-09-29 18:05       ` Junio C Hamano
2016-09-29 18:37         ` Linus Torvalds
2016-09-29 18:55           ` Linus Torvalds
2016-09-29 19:06             ` Linus Torvalds
2016-09-29 19:42               ` Junio C Hamano
2016-09-30  0:56               ` Mike Hommey
2016-09-30  1:01                 ` Linus Torvalds
2016-09-30 19:41                   ` Ævar Arnfjörð Bjarmason
2016-09-29 19:16             ` Jeff King
2016-09-29 19:40               ` Linus Torvalds
2016-09-29 19:45                 ` Junio C Hamano
2016-09-29 21:53                   ` Linus Torvalds
2016-09-29 23:13                     ` Junio C Hamano
2016-09-29 23:20                       ` Junio C Hamano
2016-09-30  0:20                       ` Linus Torvalds
2016-09-30  0:28                         ` Linus Torvalds
2016-09-30  0:57                           ` Linus Torvalds
2016-09-30  1:18                             ` Linus Torvalds
2016-09-30  3:54                               ` Junio C Hamano
2016-09-30  4:10                                 ` Junio C Hamano
2016-09-30  4:18                                   ` Linus Torvalds
2016-09-30  4:29                                     ` Linus Torvalds
2016-09-30  4:27                                   ` Junio C Hamano
2016-09-30  4:35                                     ` Junio C Hamano
2016-09-30 18:40                                     ` Junio C Hamano
2016-09-30 18:51                                       ` Linus Torvalds
2016-09-30 19:00                                         ` Junio C Hamano
2016-09-30  4:11                                 ` Linus Torvalds
2016-09-30  8:06                               ` Jeff King
2016-09-30 17:54                                 ` Linus Torvalds
2016-09-30 18:05                                   ` Jeff King
2016-09-30 18:21                                   ` Linus Torvalds
2016-09-30 20:01                                     ` Junio C Hamano
2016-09-30 17:56                                 ` Junio C Hamano
2016-09-30  7:47                       ` Jeff King
2016-09-29  9:25     ` Jeff King

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