From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: "Antoine Pelisse" <apelisse@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
git <git@vger.kernel.org>,
kernel@pengutronix.de
Subject: Re: feature suggestion: optimize common parts for checkout --conflict=diff3
Date: Wed, 06 Mar 2013 13:32:28 -0800 [thread overview]
Message-ID: <7vmwugp637.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <7vr4jsp756.fsf@alter.siamese.dyndns.org> (Junio C. Hamano's message of "Wed, 06 Mar 2013 13:09:41 -0800")
Junio C Hamano <gitster@pobox.com> writes:
> Jeff King <peff@peff.net> writes:
>
>> But it would apply to the content that is outside
>> of the hunk marker; we have changed the concept of what is in the base
>> and what is in the conflict by shrinking the conflict to its smallest
>> size.
>
> Hmm, unless you mean by "base" something entirely different from
> "what was in the common ancestor version", I do not think I can
> agree. The point of diff3 mode is to show how it looked line in the
> common ancestor and what the conflicting sides want to change that
> common version into; letting the user view three versions to help
> him decide what to do by only looking at the part inside conflict
> markers.
>
> We show "both sides added, either identically or differently" as
> noteworthy events, but the patched code pushes "both sides added
> identically" case outside the conflicting hunk, as if what was added
> relative to the common ancestor version (in Uwe's case, is it 1-14
> that is common, or just 10-14?) is not worth looking at when
> considering what the right resolution is. If it is not worth
> looking at what was in the original for the conflicting part, why
> would we be even using diff3 mode in the first place?
I vaguely recall we did this "clip to eager" as an explicit bugfix
at 83133740d9c8 (xmerge.c: "diff3 -m" style clips merge reduction
level to EAGER or less, 2008-08-29). The list archive around that
time may give us more contexts.
next prev parent reply other threads:[~2013-03-06 21:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-06 15:05 feature suggestion: optimize common parts for checkout --conflict=diff3 Uwe Kleine-König
2013-03-06 18:27 ` Antoine Pelisse
2013-03-06 19:26 ` Antoine Pelisse
2013-03-06 20:03 ` Jeff King
2013-03-06 20:36 ` [PATCH] xdiff: implement a zealous diff3 Uwe Kleine-König
2013-03-06 20:46 ` Jeff King
2013-03-06 20:40 ` feature suggestion: optimize common parts for checkout --conflict=diff3 Junio C Hamano
2013-03-06 20:54 ` Jeff King
2013-03-06 21:09 ` Junio C Hamano
2013-03-06 21:21 ` Jeff King
2013-03-06 21:50 ` Junio C Hamano
2013-03-07 1:02 ` Jeff King
2013-03-06 21:31 ` Uwe Kleine-König
2013-03-06 21:32 ` Junio C Hamano [this message]
2013-03-07 8:04 ` Jeff King
2013-03-07 17:26 ` Junio C Hamano
2013-03-07 18:01 ` Jeff King
2013-03-07 18:40 ` Junio C Hamano
2013-03-07 18:50 ` Jeff King
2013-04-04 20:33 ` Jeff King
2013-04-04 20:49 ` Uwe Kleine-König
2013-04-04 20:54 ` Jeff King
2013-04-04 21:19 ` Junio C Hamano
2013-03-07 18:21 ` Junio C Hamano
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