From: Junio C Hamano <gitster@pobox.com>
To: "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org, "ZheNing Hu" <adlternative@gmail.com>,
"Eric Sunshine" <sunshine@sunshineco.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Elijah Newren" <newren@gmail.com>
Subject: Re: [PATCH v3 5/7] merge: make restore_state() restore staged state too
Date: Thu, 21 Jul 2022 09:16:00 -0700 [thread overview]
Message-ID: <xmqqfsiul9vj.fsf@gitster.g> (raw)
In-Reply-To: <91c495c770e3f7f91ae655a503bdd1cd99935e40.1658391391.git.gitgitgadget@gmail.com> (Elijah Newren via GitGitGadget's message of "Thu, 21 Jul 2022 08:16:29 +0000")
"Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com> writes:
> 4) Merge strategies can make changes to the index and working tree,
> and have no expectation to clean up after themselves, *even* if
> they bail out and say they are not an appropriate handler for
> the merge in question. (The `octopus` merge strategy does this,
> for example.)
I personally consider this is a bug in `octopus` (and I can do so
without offending anybody, as `octopus` was what I did), but because
the point of having pluggable merge strategies is to allow end users
and third parties write their own. So save-and-restore dance would
be a prudent approach to the issue than forbidding this "buggy"
behaviour.
> Unfortunately, if users had staged changes before calling `git merge`,
> builtin/merge.c could do the following:
>
> * stash the changes, in order to clean up after the strategies
> * try all the merge strategies in turn, each of which report they
> cannot function due to the index not matching HEAD
> * restore the changes via "git stash apply"
> test_seq 0 10 >a &&
> git add a &&
> + git rev-parse :a >expect &&
> ...
> + # Changes to "a" should remain staged
> + git rev-parse :a >actual &&
> + test_cmp expect actual
Makes sense.
Thanks.
next prev parent reply other threads:[~2022-07-21 16:17 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 16:26 [PATCH 0/2] Fix merge restore state Elijah Newren via GitGitGadget
2022-05-19 16:26 ` [PATCH 1/2] merge: remove unused variable Elijah Newren via GitGitGadget
2022-05-19 17:45 ` Junio C Hamano
2022-05-19 16:26 ` [PATCH 2/2] merge: make restore_state() do as its name says Elijah Newren via GitGitGadget
2022-05-19 17:44 ` Junio C Hamano
2022-05-19 18:32 ` Junio C Hamano
2022-06-12 6:58 ` [PATCH 0/2] Fix merge restore state Elijah Newren
2022-06-12 8:54 ` ZheNing Hu
2022-06-19 6:50 ` [PATCH v2 0/6] " Elijah Newren via GitGitGadget
2022-06-19 6:50 ` [PATCH v2 1/6] t6424: make sure a failed merge preserves local changes Junio C Hamano via GitGitGadget
2022-06-19 6:50 ` [PATCH v2 2/6] merge: remove unused variable Elijah Newren via GitGitGadget
2022-07-19 23:14 ` Junio C Hamano
2022-06-19 6:50 ` [PATCH v2 3/6] merge: fix save_state() to work when there are racy-dirty files Elijah Newren via GitGitGadget
2022-07-17 16:28 ` ZheNing Hu
2022-07-19 22:49 ` Junio C Hamano
2022-07-21 1:09 ` Elijah Newren
2022-07-19 22:43 ` Junio C Hamano
2022-06-19 6:50 ` [PATCH v2 4/6] merge: make restore_state() restore staged state too Elijah Newren via GitGitGadget
2022-07-17 16:37 ` ZheNing Hu
2022-07-19 23:14 ` Junio C Hamano
2022-07-19 23:28 ` Junio C Hamano
2022-07-21 1:37 ` Elijah Newren
2022-06-19 6:50 ` [PATCH v2 5/6] merge: ensure we can actually restore pre-merge state Elijah Newren via GitGitGadget
2022-07-17 16:41 ` ZheNing Hu
2022-07-19 22:57 ` Junio C Hamano
2022-07-21 2:03 ` Elijah Newren
2022-06-19 6:50 ` [PATCH v2 6/6] merge: do not exit restore_state() prematurely Elijah Newren via GitGitGadget
2022-07-17 16:44 ` ZheNing Hu
2022-07-19 23:13 ` Junio C Hamano
2022-07-20 0:09 ` Eric Sunshine
2022-07-21 2:03 ` Elijah Newren
2022-07-21 3:27 ` Elijah Newren
2022-07-21 8:16 ` [PATCH v3 0/7] Fix merge restore state Elijah Newren via GitGitGadget
2022-07-21 8:16 ` [PATCH v3 1/7] merge-ort-wrappers: make printed message match the one from recursive Elijah Newren via GitGitGadget
2022-07-21 15:47 ` Junio C Hamano
2022-07-21 19:51 ` Elijah Newren
2022-07-21 20:05 ` Junio C Hamano
2022-07-21 21:14 ` Elijah Newren
2022-07-21 8:16 ` [PATCH v3 2/7] merge-resolve: abort if index does not match HEAD Elijah Newren via GitGitGadget
2022-07-21 8:16 ` [PATCH v3 3/7] merge: do not abort early if one strategy fails to handle the merge Elijah Newren via GitGitGadget
2022-07-21 16:09 ` Junio C Hamano
2022-07-25 10:38 ` Ævar Arnfjörð Bjarmason
2022-07-26 1:31 ` Elijah Newren
2022-07-26 6:54 ` Ævar Arnfjörð Bjarmason
2022-07-21 8:16 ` [PATCH v3 4/7] merge: fix save_state() to work when there are stat-dirty files Elijah Newren via GitGitGadget
2022-07-21 8:16 ` [PATCH v3 5/7] merge: make restore_state() restore staged state too Elijah Newren via GitGitGadget
2022-07-21 16:16 ` Junio C Hamano [this message]
2022-07-21 16:24 ` Junio C Hamano
2022-07-21 19:52 ` Elijah Newren
2022-07-21 8:16 ` [PATCH v3 6/7] merge: ensure we can actually restore pre-merge state Elijah Newren via GitGitGadget
2022-07-21 16:31 ` Junio C Hamano
2023-03-02 7:17 ` Ben Humphreys
2023-03-02 15:35 ` Elijah Newren
2023-03-02 16:19 ` Junio C Hamano
2023-03-04 16:18 ` Rudy Rigot
2023-03-06 22:19 ` Ben Humphreys
2022-07-21 8:16 ` [PATCH v3 7/7] merge: do not exit restore_state() prematurely Elijah Newren via GitGitGadget
2022-07-21 16:34 ` Junio C Hamano
2022-07-22 5:15 ` [PATCH v4 0/7] Fix merge restore state Elijah Newren via GitGitGadget
2022-07-22 5:15 ` [PATCH v4 1/7] merge-ort-wrappers: make printed message match the one from recursive Elijah Newren via GitGitGadget
2022-07-22 5:15 ` [PATCH v4 2/7] merge-resolve: abort if index does not match HEAD Elijah Newren via GitGitGadget
2022-07-22 10:27 ` Ævar Arnfjörð Bjarmason
2022-07-23 0:28 ` Elijah Newren
2022-07-23 5:44 ` Ævar Arnfjörð Bjarmason
2022-07-26 1:58 ` Elijah Newren
2022-07-26 6:35 ` Ævar Arnfjörð Bjarmason
2022-07-22 5:15 ` [PATCH v4 3/7] merge: do not abort early if one strategy fails to handle the merge Elijah Newren via GitGitGadget
2022-07-22 10:47 ` Ævar Arnfjörð Bjarmason
2022-07-23 0:36 ` Elijah Newren
2022-07-22 5:15 ` [PATCH v4 4/7] merge: fix save_state() to work when there are stat-dirty files Elijah Newren via GitGitGadget
2022-07-22 5:15 ` [PATCH v4 5/7] merge: make restore_state() restore staged state too Elijah Newren via GitGitGadget
2022-07-22 10:53 ` Ævar Arnfjörð Bjarmason
2022-07-23 1:56 ` Elijah Newren
2022-07-22 5:15 ` [PATCH v4 6/7] merge: ensure we can actually restore pre-merge state Elijah Newren via GitGitGadget
2022-07-22 5:15 ` [PATCH v4 7/7] merge: do not exit restore_state() prematurely Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 0/8] Fix merge restore state Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 1/8] merge-ort-wrappers: make printed message match the one from recursive Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 2/8] merge-resolve: abort if index does not match HEAD Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 3/8] merge: abort if index does not match HEAD for trivial merges Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 4/8] merge: do not abort early if one strategy fails to handle the merge Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 5/8] merge: fix save_state() to work when there are stat-dirty files Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 6/8] merge: make restore_state() restore staged state too Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 7/8] merge: ensure we can actually restore pre-merge state Elijah Newren via GitGitGadget
2022-07-23 1:53 ` [PATCH v5 8/8] merge: do not exit restore_state() prematurely Elijah Newren via GitGitGadget
2022-07-25 19:03 ` [PATCH v5 0/8] Fix merge restore state Junio C Hamano
2022-07-26 1:59 ` Elijah Newren
2022-07-26 4:03 ` ZheNing Hu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=xmqqfsiul9vj.fsf@gitster.g \
--to=gitster@pobox.com \
--cc=adlternative@gmail.com \
--cc=avarab@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitgitgadget@gmail.com \
--cc=newren@gmail.com \
--cc=sunshine@sunshineco.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).