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From: Junio C Hamano <gitster@pobox.com>
To: Elijah Newren <newren@gmail.com>
Cc: Patrick Steinhardt <ps@pks.im>,
	 Elijah Newren via GitGitGadget <gitgitgadget@gmail.com>,
	 git@vger.kernel.org,  Jonathan Tan <jonathantanmy@google.com>
Subject: Re: [PATCH 4/5] merge-ort: prevent the_repository from coming back
Date: Thu, 19 Feb 2026 12:30:40 -0800	[thread overview]
Message-ID: <xmqq8qco4gsv.fsf@gitster.g> (raw)
In-Reply-To: <CABPp-BF5jLfsndbinaPO_18fxvdUuVOYC8j31==jMXwK6iP0QA@mail.gmail.com> (Elijah Newren's message of "Thu, 19 Feb 2026 10:42:28 -0800")

Elijah Newren <newren@gmail.com> writes:

> Yeah, also full disclosure: I do not know why
> prefetch_for_content_merges() needs to use the_repository.  When I
> introduced it back in 2bff554b23e8 (merge-ort: add prefetching for
> content merges, 2021-06-22), I was just looking at diffcore_std() and
> trying to mimic how it did the prefetch.  I don't actually understand
> why the comparison against the_repository is there for either of these
> functions.  Maybe someone else knows and could shed some light?  (cc:
> Jonathan Tan for the diffcore_std() case I was copying from...)

I did a bit of digging for you ;-)

The comparison with the_repository is from 7fbbcb21 (diff: batch
fetching of missing blobs, 2019-04-05), whose original version did
not have it, but was later amended with

  https://lore.kernel.org/git/20190405170934.20441-1-jonathantanmy@google.com/

And after that it survived across evolutions like b14ed5ad (Use
promisor_remote_get_direct() and has_promisor_remote(), 2019-06-25),
95acf11a (diff: restrict when prefetching occurs, 2020-04-07), and
finally a5183d76 (cocci: apply the "promisor-remote.h" part of
"the_repository.pending", 2023-03-28).

  reply	other threads:[~2026-02-19 20:30 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-18  9:15 [PATCH 0/5] Avoid the_repository in merge-ort and replay Elijah Newren via GitGitGadget
2026-02-18  9:15 ` [PATCH 1/5] merge-ort: pass repository to write_tree() Elijah Newren via GitGitGadget
2026-02-18  9:15 ` [PATCH 2/5] merge-ort: replace the_repository with opt->repo Elijah Newren via GitGitGadget
2026-02-18  9:15 ` [PATCH 3/5] merge-ort: replace the_hash_algo with opt->repo->hash_algo Elijah Newren via GitGitGadget
2026-02-19 15:27   ` Patrick Steinhardt
2026-02-19 17:54     ` Elijah Newren
2026-02-18  9:15 ` [PATCH 4/5] merge-ort: prevent the_repository from coming back Elijah Newren via GitGitGadget
2026-02-19  9:48   ` Kristoffer Haugsbakk
2026-02-19 16:00     ` Elijah Newren
2026-02-19 15:27   ` Patrick Steinhardt
2026-02-19 18:42     ` Elijah Newren
2026-02-19 20:30       ` Junio C Hamano [this message]
2026-02-19 20:53         ` Elijah Newren
2026-02-18  9:15 ` [PATCH 5/5] replay: " Elijah Newren via GitGitGadget
2026-02-19 15:27   ` Patrick Steinhardt
2026-02-20  1:59 ` [PATCH v2 0/6] Avoid the_repository in merge-ort and replay Elijah Newren via GitGitGadget
2026-02-20  1:59   ` [PATCH v2 1/6] merge,diff: remove the_repository check before prefetching blobs Elijah Newren via GitGitGadget
2026-02-20  8:19     ` Patrick Steinhardt
2026-02-20 18:51       ` Elijah Newren
2026-02-20  1:59   ` [PATCH v2 2/6] merge-ort: pass repository to write_tree() Elijah Newren via GitGitGadget
2026-02-20  1:59   ` [PATCH v2 3/6] merge-ort: replace the_repository with opt->repo Elijah Newren via GitGitGadget
2026-02-20  1:59   ` [PATCH v2 4/6] merge-ort: replace the_hash_algo with opt->repo->hash_algo Elijah Newren via GitGitGadget
2026-02-20  1:59   ` [PATCH v2 5/6] merge-ort: prevent the_repository from coming back Elijah Newren via GitGitGadget
2026-02-20  1:59   ` [PATCH v2 6/6] replay: " Elijah Newren via GitGitGadget
2026-02-21 23:59   ` [PATCH v3 0/6] Avoid the_repository in merge-ort and replay Elijah Newren via GitGitGadget
2026-02-21 23:59     ` [PATCH v3 1/6] merge,diff: remove the_repository check before prefetching blobs Elijah Newren via GitGitGadget
2026-02-21 23:59     ` [PATCH v3 2/6] merge-ort: pass repository to write_tree() Elijah Newren via GitGitGadget
2026-02-21 23:59     ` [PATCH v3 3/6] merge-ort: replace the_repository with opt->repo Elijah Newren via GitGitGadget
2026-02-21 23:59     ` [PATCH v3 4/6] merge-ort: replace the_hash_algo with opt->repo->hash_algo Elijah Newren via GitGitGadget
2026-02-21 23:59     ` [PATCH v3 5/6] merge-ort: prevent the_repository from coming back Elijah Newren via GitGitGadget
2026-02-22  2:38     ` [PATCH v3 0/6] Avoid the_repository in merge-ort and replay Junio C Hamano
2026-02-22  5:03       ` Elijah Newren
2026-02-23  0:42     ` Derrick Stolee
2026-02-24 10:00       ` Patrick Steinhardt

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