From: Junio C Hamano <gitster@pobox.com>
To: Patrick Steinhardt <ps@pks.im>, Justin Tobler <jltobler@gmail.com>
Cc: git@vger.kernel.org, Matt Smiley <msmiley@gitlab.com>
Subject: Re: [PATCH 1/3] commit: avoid parsing non-commits in `lookup_commit_reference_gently()`
Date: Thu, 19 Feb 2026 09:35:33 -0800 [thread overview]
Message-ID: <xmqq7bs87i1m.fsf@gitster.g> (raw)
In-Reply-To: <aZX4w8C5In9gEF33@denethor> (Justin Tobler's message of "Wed, 18 Feb 2026 12:26:21 -0600")
Justin Tobler <jltobler@gmail.com> writes:
> On 26/02/16 04:38PM, Patrick Steinhardt wrote:
>> The function `lookup_commit_reference_gently()` can be used to look up a
>> committish by object ID. As such, the function knows to peel for example
>> tag objects so that we eventually end up with the commit.
>>
>> The function is used quite a lot throughout our tree. One such user is
>> "shallow.c" via `assign_shallow_commits_to_refs()`. The intent of this
>> function is to figure out whether a shallow push is missing any objects
>> that are required to satisfy the ref updates, and if so, which of the
>> ref updates is missing objects.
>>
>> This is done by painting the tree with `UNINTERESTING`. We start
>> painting by calling `refs_for_each_ref()` so that we can mark all
>> existing referenced objects as the boundary of objects that we already
>> have, and which are supposed to be fully connected. The reference tips
>> are then parsed via `lookup_commit_reference_gently()`, and the commit
>> commit is then marked as uninteresting.
>
> s/commit commit/commit/
Will locally amend (no need to reroll only to fix this).
Thanks for carefully reading.
next prev parent reply other threads:[~2026-02-19 17:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-16 15:38 [PATCH 0/3] git-receive-pack(1): optimize `assign_shallow_commits_to_refs()` Patrick Steinhardt
2026-02-16 15:38 ` [PATCH 1/3] commit: avoid parsing non-commits in `lookup_commit_reference_gently()` Patrick Steinhardt
2026-02-18 18:26 ` Justin Tobler
2026-02-19 17:35 ` Junio C Hamano [this message]
2026-02-16 15:38 ` [PATCH 2/3] commit: make `repo_parse_commit_no_graph()` more robust Patrick Steinhardt
2026-02-18 19:23 ` Justin Tobler
2026-02-19 7:18 ` Patrick Steinhardt
2026-02-16 15:38 ` [PATCH 3/3] commit: use commit graph in `lookup_commit_reference_gently()` Patrick Steinhardt
2026-02-18 19:34 ` Justin Tobler
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