From: Sergey Organov <sorganov@gmail.com>
To: Jeff King <peff@peff.net>
Cc: Junio C Hamano <gitster@pobox.com>,
git@vger.kernel.org, Chris Torek <chris.torek@gmail.com>
Subject: Re: [PATCH v2 0/7] making log --first-parent imply -m
Date: Wed, 05 Aug 2020 01:53:53 +0300 [thread overview]
Message-ID: <87d046vx8e.fsf@osv.gnss.ru> (raw)
In-Reply-To: <20200804221440.GC2022650@coredump.intra.peff.net> (Jeff King's message of "Tue, 4 Aug 2020 18:14:40 -0400")
Jeff King <peff@peff.net> writes:
> On Wed, Aug 05, 2020 at 01:06:51AM +0300, Sergey Organov wrote:
>
>> > For now, "off" is OK, but then we'll regret when "all" comes,
>> > because "off" would not exactly sit opposite to "all".
>>
>> IMHO, "off" does not need to be opposite for "all", as it suppresses
>> diff output altogether. I read --diff-merge=off as "turn /off/ diff
>> output for merge commits".
>>
>> Besides, "all", that I don't like either, is among "c" and "cc", all 3
>> being different versions of diffs against all the parents, no?
>
> I think "all-parents" is much more descriptive than "all" (which might
> make you think "all merges", but it has nothing to do with that). It
> would make more sense if we later add the building to say "diff against
> parent 1" or "diff against parents 1 and 3".
>
> You might also consider whether "combined" is actually mutually
> exclusive with parent selection. We have focused on which parents you'd
> want to "-m" against. But in the most general case, you could ask for a
> combined-diff between parents 1 and 3 of an octopus merge.
>
> That's just coming from the angle of "what is the most general and
> orthogonal set of features". I think the vast majority of what anyone
> would want to do would be covered by doing a diff against only a single
> parent, and then it would almost always be the first parent. And
> certainly you'd need to add a bunch of code to the combined diff
> machinery to make it support arbitrary sets of parents. So this probably
> isn't that interesting a direction to go, at least for now. I'm just
> raising the issue now because we'll be locked into the semantics of this
> option, which may not be able to express the full set of what's possible
> (so we'd be stuck adding another option later).
Makes sense, and I got an idea.
--diff-merges=<parent> will still give diff against one specific parent.
In case of combined/separate diffs, it will produce diffs against all
the parents that, if happens to be needed, could later be refined by a
new --diff-parents option that defaults to 'all'.
Then, for example,
--diff-merges=1
would finally be just a short-cut for
--diff-merges=separate --diff-parents=1
while
--diff-merges=separate --diff-parents=all
would be the same as
--diff-merges=separate (what we called "all" so far)
and then we may have
--diff-merges=condensed-combined --diff-parents=1-3,8
for the bravest ;-)
This would lead us, currently to:
--diff-merges=(off,separate,combined,condensed-combined,<parent>)
and leave us ability to implement advanced parents selection, in an
unlikely case it's needed, in a separate new option.
Thanks,
-- Sergey
next prev parent reply other threads:[~2020-08-04 22:54 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 16:36 [PATCH 0/3] making --first-parent imply -m Jeff King
2020-07-28 16:36 ` [PATCH 1/3] log: drop "--cc implies -m" logic Jeff King
2020-07-28 16:38 ` [PATCH 2/3] revision: add "--ignore-merges" option to counteract "-m" Jeff King
2020-07-28 17:52 ` Chris Torek
2020-07-29 18:42 ` Jeff King
2020-07-28 21:01 ` Junio C Hamano
2020-07-29 18:22 ` Jeff King
2020-07-29 18:30 ` Jeff King
2020-07-29 18:53 ` Junio C Hamano
2020-07-28 16:39 ` [PATCH 3/3] log: enable "-m" automatically with "--first-parent" Jeff King
2020-07-28 16:47 ` [PATCH 0/3] making --first-parent imply -m Jeff King
2020-07-28 16:48 ` Junio C Hamano
2020-07-28 16:53 ` Jeff King
2020-07-28 16:55 ` Taylor Blau
2020-07-29 20:10 ` [PATCH v2 0/7] making log " Jeff King
2020-07-29 20:10 ` [PATCH v2 1/7] log: drop "--cc implies -m" logic Jeff King
2020-07-29 20:10 ` [PATCH v2 2/7] revision: add "--no-diff-merges" option to counteract "-m" Jeff King
2020-07-29 20:10 ` [PATCH v2 3/7] log: enable "-m" automatically with "--first-parent" Jeff King
2020-07-29 20:28 ` Junio C Hamano
2020-07-29 20:11 ` [PATCH v2 4/7] doc/git-log: move "Diff Formatting" from rev-list-options Jeff King
2020-07-29 20:56 ` Junio C Hamano
2020-07-29 21:02 ` Jeff King
2020-07-29 20:11 ` [PATCH v2 5/7] doc/git-log: drop "-r" diff option Jeff King
2020-07-29 20:12 ` [PATCH v2 6/7] doc/git-log: move "-t" into diff-options list Jeff King
2020-07-29 21:10 ` Junio C Hamano
2020-07-29 21:55 ` Jeff King
2020-07-29 20:12 ` [PATCH v2 7/7] doc/git-log: clarify handling of merge commit diffs Jeff King
2020-07-29 21:03 ` [PATCH v2 0/7] making log --first-parent imply -m Chris Torek
2020-07-29 21:41 ` Sergey Organov
2020-07-31 23:08 ` Jeff King
2020-08-02 12:59 ` Sergey Organov
2020-08-02 17:35 ` Junio C Hamano
2020-08-03 15:47 ` Sergey Organov
2020-08-03 16:35 ` Junio C Hamano
2020-08-03 16:41 ` Sergey Organov
2020-08-03 17:21 ` Junio C Hamano
2020-08-03 20:25 ` Sergey Organov
2020-08-03 20:58 ` Jeff King
2020-08-03 21:16 ` Sergey Organov
2020-08-03 18:08 ` Jeff King
2020-08-03 20:00 ` Sergey Organov
2020-08-03 20:55 ` Jeff King
2020-08-03 21:18 ` Sergey Organov
2020-08-04 17:50 ` Sergey Organov
2020-08-04 19:42 ` Junio C Hamano
2020-08-04 20:00 ` Jeff King
2020-08-04 20:55 ` Sergey Organov
2020-08-04 21:22 ` Jeff King
2020-08-04 21:55 ` Junio C Hamano
2020-08-04 22:06 ` Sergey Organov
2020-08-04 22:14 ` Jeff King
2020-08-04 22:49 ` Junio C Hamano
2020-08-07 8:26 ` Jeff King
2020-08-07 9:25 ` Sergey Organov
2020-08-07 17:43 ` Junio C Hamano
2020-08-07 17:52 ` Sergey Organov
2020-08-07 19:01 ` Junio C Hamano
2020-08-07 19:12 ` Sergey Organov
2020-08-07 19:20 ` Jeff King
2020-08-07 19:28 ` Sergey Organov
2020-08-07 19:46 ` Junio C Hamano
2020-08-07 20:29 ` Sergey Organov
2020-08-07 20:39 ` Junio C Hamano
2020-08-07 21:08 ` Sergey Organov
2020-08-07 21:54 ` Junio C Hamano
2020-08-07 23:07 ` Sergey Organov
2020-08-04 22:53 ` Sergey Organov [this message]
2020-08-04 21:21 ` Sergey Organov
2020-08-04 21:26 ` Jeff King
2020-08-04 19:58 ` Jeff King
2020-08-04 20:56 ` Sergey Organov
2020-08-04 21:25 ` Jeff King
2020-08-04 21:41 ` Sergey Organov
2020-08-04 22:07 ` Jeff King
2020-08-04 22:15 ` Sergey Organov
2020-08-04 21:27 ` Junio C Hamano
2020-08-04 21:44 ` Sergey Organov
2020-08-04 21:58 ` Sergey Organov
2020-08-04 22:08 ` Jeff King
2020-08-04 22:26 ` [PATCH] revision: fix die() message for "--unpacked=" Sergey Organov
2020-08-05 0:03 ` Junio C Hamano
2020-08-05 15:37 ` [PATCH v2 0/7] making log --first-parent imply -m Sergey Organov
2020-08-05 16:05 ` Junio C Hamano
2020-08-05 17:55 ` Sergey Organov
2020-08-05 19:24 ` Junio C Hamano
2020-08-05 20:27 ` Sergey Organov
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