From: Elijah Newren <newren@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Git Mailing List <git@vger.kernel.org>,
Phillip Wood <phillip.wood@dunelm.org.uk>,
Johannes Schindelin <johannes.schindelin@gmx.de>,
Eric Sunshine <sunshine@sunshineco.com>
Subject: Re: [PATCH v3 1/7] git-rebase.txt: document incompatible options
Date: Thu, 21 Jun 2018 13:33:41 -0700 [thread overview]
Message-ID: <CABPp-BGjCVAdUd0EDz3CNH=ymZYv1a29sER2zHHrVoOgJ38bBw@mail.gmail.com> (raw)
In-Reply-To: <xmqq4lhvudjt.fsf@gitster-ct.c.googlers.com>
On Thu, Jun 21, 2018 at 12:47 PM, Junio C Hamano <gitster@pobox.com> wrote:
> Elijah Newren <newren@gmail.com> writes:
>
>> @@ -280,8 +286,10 @@ other words, the sides are swapped.
>> +
>> Because 'git rebase' replays each commit from the working branch
>> on top of the <upstream> branch using the given strategy, using
>> -the 'ours' strategy simply discards all patches from the <branch>,
>> +the 'ours' strategy simply empties all patches from the <branch>,
>
> I think overall the direction this series takes, and especially what
> this step does---clarify what the current code & design does first
> before attempting to improve the status quo, makes sense, but I had
> trouble justifying this change. Do you want to emphasize that the
> operation discards the changes but still leaves empty commits, and
> "discards all patches" imply there won't be any commits left on top
> of the "onto" point?
Yes, is there an alternative wording that you'd find more clear?
(Also, I'd like to push to make rebase -i/-m behave the same as
am-based rebase with empty commits, meaning they are just discarded by
default rather than halted at. But I haven't gotten to that point...)
>> @@ -487,6 +510,52 @@ recreates the topic branch with fresh commits so it can be remerged
>> successfully without needing to "revert the reversion" (see the
>> link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for details).
>>
>> +INCOMPATIBLE OPTIONS
>> +--------------------
>> +
>> +git-rebase has many flags that are incompatible with each other,
>> +predominantly due to the fact that it has three different underlying
>> +implementations:
>> +
>> + * one based on linkgit:git-am[1] (the default)
>> + * one based on linkgit:git-merge-recursive[1] (merge backend)
>> + * one based on linkgit:git-cherry-pick[1] (interactive backend)
>> +
>> +Flags only understood by the am backend:
>> +
>> + * --committer-date-is-author-date
>> + * --ignore-date
>> + * --whitespace
>> + * --ignore-whitespace
>> + * -C
>> +
>> +Flags understood by both merge and interactive backends:
>> +
>> + * --merge
>> + * --strategy
>> + * --strategy-option
>> + * --allow-empty-message
>> +
>> +Flags only understood by the interactive backend:
>> +
>> + * --[no-]autosquash
>> + * --rebase-merges
>> + * --preserve-merges
>> + * --interactive
>> + * --exec
>> + * --keep-empty
>> + * --autosquash
>> + * --edit-todo
>> + * --root when used in combination with --onto
>> +
>> +Other incompatible flag pairs:
>> +
>> + * --preserve-merges and --interactive
>> + * --preserve-merges and --signoff
>> + * --preserve-merges and --rebase-merges
>> + * --rebase-merges and --strategy
>> + * --rebase-merges and --strategy-option
>> +
>> include::merge-strategies.txt[]
>
> It is a bit unclear what these lists want to say. If --ignore-date
> is only understood by "rebase" and not "rebase -i", wouldn't that
> make "--interactive and --ignore-date" an incompatible flag pair?
> Or do you mean the "Other incompatible" list to enumerate the ones
> that are explicitly rejected, as opposed to getting silently
> ignored?
Yes, --interactive and --ignore-date are an incompatible flag pair but
I didn't want to list all 65 of those pairs explicitly. Anything that
only works by being passed to git-am is incompatible with anything
that implies the --merge or --interactive backends.
The list becomes simpler once we nuke git-rebase--merge.sh,
implementing it atop git-rebase--interactive.sh (which comes in a
separate series that depends on this one).
> In any case, I'll need to read through the remainder of the series
> to come to any conclusion, but given that -p is getting killed by
> its primary author, with help from others to split out its
> implementation from the --interactive codepath, it might be a bad
> time to do this series. Thanks for working on this topic.
This series doesn't conflict with ag/rebase-p at all; it merges
cleanly with next and pu. The follow-on work to nuke
git-rebase--merge.sh, however, does conflict so I'm waiting on
(re-)sending it.
next prev parent reply other threads:[~2018-06-21 20:33 UTC|newest]
Thread overview: 130+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 4:58 RFC: rebase inconsistency in 2.18 -- course of action? Elijah Newren
2018-06-07 5:04 ` [PATCH] t3401: add directory rename testcases for rebase and am Elijah Newren
2018-06-25 16:17 ` Elijah Newren
2018-06-07 5:05 ` [PATCH] apply: fix grammar error in comment Elijah Newren
2018-06-07 5:05 ` [PATCH] t5407: fix test to cover intended arguments Elijah Newren
2018-06-07 5:06 ` [PATCH] git-rebase--merge: modernize "git-$cmd" to "git $cmd" Elijah Newren
2018-06-07 5:24 ` Elijah Newren
2018-06-27 7:46 ` [PATCH v2] " Elijah Newren
2018-07-12 15:49 ` Johannes Schindelin
2018-07-13 16:13 ` Elijah Newren
2018-07-14 22:20 ` Johannes Schindelin
2018-06-07 5:06 ` [PATCH 1/2] t3422: new testcases for checking when incompatible options passed Elijah Newren
2018-06-07 5:06 ` [PATCH 2/2] git-rebase: error out " Elijah Newren
2018-06-10 19:40 ` Phillip Wood
2018-06-11 15:19 ` Elijah Newren
2018-06-11 15:59 ` Phillip Wood
2018-06-11 15:49 ` Elijah Newren
2018-06-12 9:45 ` Phillip Wood
2018-06-17 5:58 ` [RFC PATCH v2 0/7] Document/fix/warn about rebase incompatibilities and inconsistences Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 1/7] git-rebase.txt: document incompatible options Elijah Newren
2018-06-17 15:38 ` Phillip Wood
2018-06-20 17:09 ` Elijah Newren
2018-06-17 17:15 ` Eric Sunshine
2018-06-20 17:10 ` Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 2/7] git-rebase.sh: update help messages a bit Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 3/7] t3422: new testcases for checking when incompatible options passed Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 4/7] git-rebase: error out " Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 5/7] git-rebase.txt: document behavioral inconsistencies between modes Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 6/7] git-rebase.txt: address confusion between --no-ff vs --force-rebase Elijah Newren
2018-06-17 5:58 ` [RFC PATCH v2 7/7] git-rebase: make --allow-empty-message the default Elijah Newren
2018-06-17 15:30 ` Phillip Wood
2018-06-20 16:47 ` Elijah Newren
2018-06-17 15:41 ` [RFC PATCH v2 0/7] Document/fix/warn about rebase incompatibilities and inconsistences Phillip Wood
2018-06-21 15:00 ` [PATCH v3 0/7] Document/fix/warn about rebase incompatibilities and inconsistencies Elijah Newren
2018-06-21 15:00 ` [PATCH v3 1/7] git-rebase.txt: document incompatible options Elijah Newren
2018-06-21 19:47 ` Junio C Hamano
2018-06-21 20:33 ` Elijah Newren [this message]
2018-06-22 8:32 ` SZEDER Gábor
2018-06-21 15:00 ` [PATCH v3 2/7] git-rebase.sh: update help messages a bit Elijah Newren
2018-06-21 19:58 ` Junio C Hamano
2018-06-21 20:34 ` Elijah Newren
2018-06-21 15:00 ` [PATCH v3 3/7] t3422: new testcases for checking when incompatible options passed Elijah Newren
2018-06-21 20:04 ` Junio C Hamano
2018-06-21 20:37 ` Elijah Newren
2018-06-21 21:18 ` Eric Sunshine
2018-06-21 15:00 ` [PATCH v3 4/7] git-rebase: error out " Elijah Newren
2018-06-21 20:29 ` Junio C Hamano
2018-06-21 20:41 ` Elijah Newren
2018-06-21 15:00 ` [PATCH v3 5/7] git-rebase.txt: document behavioral inconsistencies between modes Elijah Newren
2018-06-21 20:44 ` Junio C Hamano
2018-06-21 21:25 ` Elijah Newren
2018-06-21 15:00 ` [PATCH v3 6/7] git-rebase.txt: address confusion between --no-ff vs --force-rebase Elijah Newren
2018-06-21 20:46 ` Junio C Hamano
2018-06-21 21:22 ` Elijah Newren
2018-06-21 15:00 ` [RFC PATCH v3 7/7] git-rebase: make --allow-empty-message the default Elijah Newren
2018-06-25 16:12 ` [PATCH v4 0/9] Document/fix/warn about rebase incompatibilities and inconsistencies Elijah Newren
2018-06-25 16:12 ` [PATCH v4 1/9] git-rebase.txt: document incompatible options Elijah Newren
2018-06-25 16:12 ` [PATCH v4 2/9] git-rebase.sh: update help messages a bit Elijah Newren
2018-06-25 16:12 ` [PATCH v4 3/9] t3422: new testcases for checking when incompatible options passed Elijah Newren
2018-06-26 18:17 ` Junio C Hamano
2018-06-27 6:50 ` Elijah Newren
2018-06-25 16:12 ` [PATCH v4 4/9] git-rebase: error out " Elijah Newren
2018-06-25 16:12 ` [PATCH v4 5/9] git-rebase.txt: address confusion between --no-ff vs --force-rebase Elijah Newren
2018-06-25 16:12 ` [PATCH v4 6/9] directory-rename-detection.txt: technical docs on abilities and limitations Elijah Newren
2018-06-25 16:12 ` [PATCH v4 7/9] git-rebase.txt: document behavioral differences between modes Elijah Newren
2018-06-25 16:12 ` [PATCH v4 8/9] t3401: add directory rename testcases for rebase and am Elijah Newren
2018-06-25 16:13 ` [RFC PATCH v4 9/9] git-rebase: make --allow-empty-message the default Elijah Newren
2018-06-27 7:23 ` [PATCH v5 0/9] Document/fix/warn about rebase incompatibilities and inconsistencies Elijah Newren
2018-06-27 7:23 ` [PATCH v5 1/9] git-rebase.txt: document incompatible options Elijah Newren
2018-06-27 7:23 ` [PATCH v5 2/9] git-rebase.sh: update help messages a bit Elijah Newren
2018-06-27 7:23 ` [PATCH v5 3/9] t3422: new testcases for checking when incompatible options passed Elijah Newren
2018-06-27 7:23 ` [PATCH v5 4/9] git-rebase: error out " Elijah Newren
2018-06-27 7:23 ` [PATCH v5 5/9] git-rebase.txt: address confusion between --no-ff vs --force-rebase Elijah Newren
2018-06-27 7:23 ` [PATCH v5 6/9] directory-rename-detection.txt: technical docs on abilities and limitations Elijah Newren
2018-06-27 7:23 ` [PATCH v5 7/9] git-rebase.txt: document behavioral differences between modes Elijah Newren
2018-06-27 7:23 ` [PATCH v5 8/9] t3401: add directory rename testcases for rebase and am Elijah Newren
2018-06-27 7:23 ` [RFC PATCH v5 9/9] git-rebase: make --allow-empty-message the default Elijah Newren
2018-09-12 2:42 ` 2.19.0 regression: leaving editor with empty commit message doesn't stop rebase [was: Re: [RFC PATCH v5 9/9] git-rebase: make --allow-empty-message the default] SZEDER Gábor
2018-09-12 6:21 ` Elijah Newren
2018-09-12 21:18 ` [PATCH] sequencer: fix --allow-empty-message behavior, make it smarter Elijah Newren
2018-09-13 20:24 ` Junio C Hamano
2018-06-29 13:20 ` [PATCH v5 0/9] Document/fix/warn about rebase incompatibilities and inconsistencies Phillip Wood
2018-06-07 5:07 ` [PATCH] git-rebase.sh: handle keep-empty like all other options Elijah Newren
2018-06-10 19:26 ` Phillip Wood
2018-06-11 14:42 ` Elijah Newren
2018-06-11 15:16 ` Phillip Wood
2018-06-11 16:08 ` Elijah Newren
2018-06-12 9:53 ` Phillip Wood
2018-06-07 5:08 ` [PATCH 1/2] t3418: add testcase showing problems with rebase -i and strategy options Elijah Newren
2018-06-07 5:08 ` [PATCH 2/2] Fix use of strategy options with interactive rebases Elijah Newren
2018-06-27 7:36 ` [PATCH v2 0/2] " Elijah Newren
2018-06-27 7:36 ` [PATCH v2 1/2] t3418: add testcase showing problems with rebase -i and strategy options Elijah Newren
2018-06-27 7:45 ` Eric Sunshine
2018-06-27 7:49 ` Elijah Newren
2018-06-27 16:54 ` Junio C Hamano
2018-06-27 17:27 ` Elijah Newren
2018-06-27 18:17 ` Johannes Sixt
2018-06-27 18:24 ` Eric Sunshine
2018-06-27 18:34 ` [PATCH v2 1/2] t3418: add testcase showing problems with rebase SZEDER Gábor
2018-06-27 19:20 ` [PATCH v2 1/2] t3418: add testcase showing problems with rebase -i and strategy options Junio C Hamano
2018-06-27 19:23 ` Junio C Hamano
2018-06-27 7:36 ` [PATCH v2 2/2] Fix use of strategy options with interactive rebases Elijah Newren
2018-06-27 15:48 ` [PATCH v3 0/2] " Elijah Newren
2018-06-27 15:48 ` [PATCH v3 1/2] t3418: add testcase showing problems with rebase -i and strategy options Elijah Newren
2018-06-27 18:28 ` SZEDER Gábor
2018-07-11 10:56 ` SZEDER Gábor
2018-07-11 19:12 ` Elijah Newren
2018-06-27 15:48 ` [PATCH v3 2/2] Fix use of strategy options with interactive rebases Elijah Newren
2018-07-12 15:41 ` Johannes Schindelin
2018-07-13 15:51 ` Elijah Newren
2018-06-07 17:13 ` [RFC PATCH 0/3] Send more rebases through interactive machinery Elijah Newren
2018-06-07 17:13 ` [RFC PATCH 1/3] git-rebase, sequencer: add a --quiet option for the " Elijah Newren
2018-06-09 21:45 ` Johannes Schindelin
2018-06-09 23:05 ` Elijah Newren
2018-06-07 17:13 ` [RFC PATCH 2/3] rebase: Implement --merge via git-rebase--interactive Elijah Newren
2018-06-09 22:04 ` Johannes Schindelin
2018-06-10 1:14 ` Elijah Newren
2018-06-11 9:54 ` Phillip Wood
2018-06-07 17:13 ` [RFC PATCH 3/3] git-rebase.sh: make git-rebase--interactive the default Elijah Newren
2018-06-09 22:11 ` Johannes Schindelin
2018-06-10 1:31 ` Elijah Newren
2018-06-17 21:44 ` Johannes Schindelin
2018-06-20 16:27 ` Elijah Newren
2018-06-21 10:57 ` Johannes Schindelin
2018-06-21 15:36 ` Elijah Newren
2019-01-21 15:55 ` Johannes Schindelin
2019-01-21 19:02 ` Elijah Newren
2019-01-22 15:37 ` Johannes Schindelin
2018-06-11 17:44 ` RFC: rebase inconsistency in 2.18 -- course of action? Junio C Hamano
2018-06-11 20:17 ` Elijah Newren
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