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From: Junio C Hamano <gitster@pobox.com>
To: Phillip Wood <phillip.wood@talktalk.net>
Cc: Ævar Arnfjörð Bjarmason <avarab@gmail.com>,
	Phillip Wood <phillip.wood@dunelm.org.uk>,
	Git Mailing List <git@vger.kernel.org>,
	Igor Djordjevic <igor.d.djordjevic@gmail.com>
Subject: Re: [RFC PATCH v5 0/4] add -p: select individual hunk lines
Date: Fri, 03 Aug 2018 09:51:42 -0700
Message-ID: <xmqqy3dnxujl.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <d622a95b-7302-43d4-4ec9-b2cf3388c653@talktalk.net>

Phillip Wood <phillip.wood@talktalk.net> writes:

> ... [I'm beginning to see why all the other programs I tried while
> writing this (tig, gitg, gitk and mercurial's version of add -i)
> don't make any attempt to stage modified lines correctly, though I
> think git should have some way of doing it.]

Yes, this is a kind of feature that one can propose and implement
something that works well for some of the limited cases one uses,
but not in other cases, and it becomes very hard to explain how to
work around the implementation limitation---that is why I stopped
at "split this hunk?" and did not go beyond it when I designed the
original "incremental add" feature.

I think the real reason why it is hard is that there is no good
definition of "modified" in "stage modified lines", and worse, there
is no good way to mechanically figure it out, because a patch only
gives you "these were deleted" and "these are added", without giving
you "this line in the deleted block corresponds to these two lines
in the added block" (i.e. "this original one line was modified into
this thing in the result").

  reply index

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-19 11:36 [PATCH v1 0/3] " Phillip Wood
2018-02-19 11:36 ` [PATCH v1 1/3] " Phillip Wood
2018-02-19 11:36 ` [PATCH v1 2/3] add -p: allow line selection to be inverted Phillip Wood
2018-02-19 11:36 ` [PATCH v1 3/3] add -p: optimize line selection for short hunks Phillip Wood
2018-02-19 12:20 ` [PATCH v1 0/3] add -p: select individual hunk lines Gustavo Leite
2018-03-06 10:17 ` [PATCH v2 " Phillip Wood
2018-03-06 10:17   ` [PATCH v2 1/3] " Phillip Wood
2018-03-06 20:29     ` Igor Djordjevic
2018-03-06 21:33       ` Igor Djordjevic
2018-03-06 10:17   ` [PATCH v2 2/3] add -p: allow line selection to be inverted Phillip Wood
2018-03-06 19:57     ` Junio C Hamano
2018-03-08 11:05       ` Phillip Wood
2018-03-08 17:53         ` Junio C Hamano
2018-03-13 12:06           ` Phillip Wood
2018-03-13 16:32             ` Junio C Hamano
2018-03-14 11:02               ` Phillip Wood
2018-03-06 20:41     ` Igor Djordjevic
2018-03-06 10:17   ` [PATCH v2 3/3] add -p: optimize line selection for short hunks Phillip Wood
2018-03-06 20:33     ` Igor Djordjevic
2018-03-06 20:19   ` [PATCH v2 0/3] add -p: select individual hunk lines Igor Djordjevic
2018-03-06 21:03     ` Junio C Hamano
2018-03-06 21:20       ` Igor Djordjevic
2018-03-16 10:13 ` [PATCH v3 " Phillip Wood
2018-03-16 10:13   ` [PATCH v3 1/3] " Phillip Wood
2018-03-16 10:13   ` [PATCH v3 2/3] add -p: allow line selection to be inverted Phillip Wood
2018-03-16 10:13   ` [PATCH v3 3/3] add -p: optimize line selection for short hunks Phillip Wood
2018-03-29 18:32   ` [PATCH v3 0/3] add -p: select individual hunk lines Junio C Hamano
2018-03-30 11:09     ` Phillip Wood
2018-03-31 19:20       ` Ævar Arnfjörð Bjarmason
2018-04-02 10:55         ` Phillip Wood
2018-04-02 11:39           ` Ævar Arnfjörð Bjarmason
2018-07-26 10:22 ` [RFC PATCH v4 0/4] " Phillip Wood
2018-07-26 10:22   ` [PATCH v4 1/4] " Phillip Wood
2018-07-26 10:22   ` [RFC PATCH v4 2/4] add -p: select modified lines correctly Phillip Wood
2018-07-26 10:22   ` [PATCH v4 3/4] add -p: allow line selection to be inverted Phillip Wood
2018-07-26 10:22   ` [PATCH v4 4/4] add -p: optimize line selection for short hunks Phillip Wood
2018-07-26 15:58 ` [RFC PATCH v5 0/4] add -p: select individual hunk lines Phillip Wood
2018-07-26 15:58   ` [PATCH v5 1/4] " Phillip Wood
2018-07-26 19:36     ` Junio C Hamano
2018-07-27 10:05       ` Phillip Wood
2018-07-27 16:09         ` Junio C Hamano
2018-07-26 15:58   ` [RFC PATCH v5 2/4] add -p: select modified lines correctly Phillip Wood
2018-07-26 19:30     ` Junio C Hamano
2018-07-27 10:19       ` Phillip Wood
2018-07-27 16:14         ` Junio C Hamano
2018-07-26 15:58   ` [PATCH v5 3/4] add -p: allow line selection to be inverted Phillip Wood
2018-07-26 15:58   ` [PATCH v5 4/4] add -p: optimize line selection for short hunks Phillip Wood
2018-07-27 18:27   ` [RFC PATCH v5 0/4] add -p: select individual hunk lines Ævar Arnfjörð Bjarmason
2018-07-28 10:08     ` Phillip Wood
2018-07-28 12:40   ` Ævar Arnfjörð Bjarmason
2018-08-03 10:01     ` Phillip Wood
2018-08-03 16:51       ` Junio C Hamano [this message]
2018-08-03 17:59       ` Ævar Arnfjörð Bjarmason

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