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From: Junio C Hamano <gitster@pobox.com>
To: Elijah Newren <newren@gmail.com>
Cc: Elijah Newren via GitGitGadget <gitgitgadget@gmail.com>,
	Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH 07/10] merge-strategies.txt: explain why no-renames might be useful
Date: Tue, 03 Aug 2021 19:05:37 -0700	[thread overview]
Message-ID: <xmqqr1faq80e.fsf@gitster.g> (raw)
In-Reply-To: <CABPp-BGKbV7WPKmMdzetXgzaqzzaGGQ6SRuKHENkQh98-huotw@mail.gmail.com> (Elijah Newren's message of "Tue, 3 Aug 2021 18:44:27 -0600")

Elijah Newren <newren@gmail.com> writes:

>> >  no-renames;;
>> > -     Turn off rename detection. This overrides the `merge.renames`
>> > -     configuration variable.
>> > -     See also linkgit:git-diff[1] `--no-renames`.
>> > +     Turn off rename detection, which can be computationally
>> > +     expensive.  This overrides the `merge.renames`
>> > +     configuration variable.  See also linkgit:git-diff[1]
>> > +     `--no-renames`.
>>
>> Other reasons are that we may find a pair that the user did not
>> intend to when they made the change (i.e. it was done purely a
>> creation and a deletion but we found similarity), or we may find a
>> wrong original to consolidate changes from a side branch into, and
>> these are fundamental as it is our early design choice not to
>> record renames at the time of committing.
>
> Good points.  Trying to describe all of that makes it somewhat
> lengthy; does it make sense to include all of that, or should I just
> drop this patch?

What do the git-diff page say?  If it is not worth saying there,
perhaps we should not have to do so here, either.

We should have _somewhere_ that lists these pitfalls that the users
may want to be aware of, that is common to all the features that
ends up using and relying on the rename machinery.  I do not think
merge strategies documentation is the place.



  reply	other threads:[~2021-08-04  2:05 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 15:35 [PATCH 00/10] Documentation updates: merge-strategies Elijah Newren via GitGitGadget
2021-08-03 15:35 ` [PATCH 01/10] git-rebase.txt: correct antiquated claims about --rebase-merges Elijah Newren via GitGitGadget
2021-08-03 22:53   ` Johannes Schindelin
2021-08-03 15:35 ` [PATCH 02/10] directory-rename-detection.txt: small updates due to merge-ort optimizations Elijah Newren via GitGitGadget
2021-08-04  0:06   ` Junio C Hamano
2021-08-03 15:35 ` [PATCH 03/10] Documentation: edit awkward references to `git merge-recursive` Elijah Newren via GitGitGadget
2021-08-04  0:14   ` Junio C Hamano
2021-08-04  0:19     ` Elijah Newren
2021-08-03 15:35 ` [PATCH 04/10] merge-strategies.txt: update wording for the resolve strategy Elijah Newren via GitGitGadget
2021-08-04  0:19   ` Junio C Hamano
2021-08-04  0:37     ` Elijah Newren
2021-08-04  2:01       ` Junio C Hamano
2021-08-03 15:35 ` [PATCH 05/10] merge-strategies.txt: do not imply using copy detection is desired Elijah Newren via GitGitGadget
2021-08-03 22:56   ` Johannes Schindelin
2021-08-04  0:21   ` Junio C Hamano
2021-08-03 15:35 ` [PATCH 06/10] merge-strategies.txt: avoid giving special preference to patience algorithm Elijah Newren via GitGitGadget
2021-08-03 17:00   ` Eric Sunshine
2021-08-03 15:35 ` [PATCH 07/10] merge-strategies.txt: explain why no-renames might be useful Elijah Newren via GitGitGadget
2021-08-04  0:28   ` Junio C Hamano
2021-08-04  0:44     ` Elijah Newren
2021-08-04  2:05       ` Junio C Hamano [this message]
2021-08-03 15:35 ` [PATCH 08/10] merge-strategies.txt: fix simple capitalization error Elijah Newren via GitGitGadget
2021-08-03 23:01   ` Johannes Schindelin
2021-08-03 23:32     ` Elijah Newren
2021-08-04 21:42       ` Johannes Schindelin
2021-08-03 15:35 ` [PATCH 09/10] Documentation: add coverage of the `ort` merge strategy Elijah Newren via GitGitGadget
2021-08-03 23:03   ` Johannes Schindelin
2021-08-03 23:43     ` Elijah Newren
2021-08-04  0:33   ` Junio C Hamano
2021-08-04  0:39     ` Elijah Newren
2021-08-03 15:35 ` [PATCH 10/10] Update error message and code comment Elijah Newren via GitGitGadget
2021-08-03 23:05   ` Johannes Schindelin
2021-08-03 23:49     ` Elijah Newren
2021-08-03 23:06 ` [PATCH 00/10] Documentation updates: merge-strategies Johannes Schindelin
2021-08-04  5:28 ` [PATCH v2 " Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 01/10] git-rebase.txt: correct antiquated claims about --rebase-merges Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 02/10] directory-rename-detection.txt: small updates due to merge-ort optimizations Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 03/10] Documentation: edit awkward references to `git merge-recursive` Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 04/10] merge-strategies.txt: update wording for the resolve strategy Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 05/10] merge-strategies.txt: do not imply using copy detection is desired Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 06/10] merge-strategies.txt: avoid giving special preference to patience algorithm Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 07/10] merge-strategies.txt: fix simple capitalization error Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 08/10] git-rebase.txt: correct out-of-date and misleading text about renames Elijah Newren via GitGitGadget
2021-08-04 15:50     ` Ramsay Jones
2021-08-04 17:18       ` Elijah Newren
2021-08-04  5:28   ` [PATCH v2 09/10] merge-strategies.txt: add coverage of the `ort` merge strategy Elijah Newren via GitGitGadget
2021-08-04  5:28   ` [PATCH v2 10/10] Update error message and code comment Elijah Newren via GitGitGadget
2021-08-04  6:12   ` [PATCH v2 00/10] Documentation updates: merge-strategies Junio C Hamano
2021-08-04 14:56     ` Derrick Stolee
2021-08-04 21:47   ` Johannes Schindelin
2021-08-04 23:50   ` [PATCH v3 " Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 01/10] git-rebase.txt: correct antiquated claims about --rebase-merges Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 02/10] directory-rename-detection.txt: small updates due to merge-ort optimizations Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 03/10] Documentation: edit awkward references to `git merge-recursive` Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 04/10] merge-strategies.txt: update wording for the resolve strategy Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 05/10] merge-strategies.txt: do not imply using copy detection is desired Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 06/10] merge-strategies.txt: avoid giving special preference to patience algorithm Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 07/10] merge-strategies.txt: fix simple capitalization error Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 08/10] git-rebase.txt: correct out-of-date and misleading text about renames Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 09/10] merge-strategies.txt: add coverage of the `ort` merge strategy Elijah Newren via GitGitGadget
2021-08-04 23:50     ` [PATCH v3 10/10] Update error message and code comment Elijah Newren via GitGitGadget

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