From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, John Fultz <jfultz@wolfram.com>
Subject: Re: [PATCH] filter-branch: resolve $commit^{tree} in no-index case
Date: Tue, 19 Jan 2016 16:59:28 -0500 [thread overview]
Message-ID: <20160119215928.GA6556@sigill.intra.peff.net> (raw)
In-Reply-To: <20160119215100.GB28656@sigill.intra.peff.net>
On Tue, Jan 19, 2016 at 04:51:00PM -0500, Jeff King wrote:
> Here's the patch I came up with. It takes the conservative choice (see
> the argument below), and shows the performance impact. I'll work up the
> non-conservative one on top, which I think can do even better than the
> original.
Oh, never mind. I had thought we could do away with _both_ rev-parses
and compare "foo^{tree}" to "foo^{tree}".
But of course that does not work. Because it is really "$commit^{tree}"
versus "$parent^{tree}" here. I need to update the commit message below.
We could get away "git diff --exit-code $1 $2" to do a single process
invocation (rather than two rev-parses), but I don't know if it is worth
the complexity.
-Peff
next prev parent reply other threads:[~2016-01-19 21:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 20:48 git filter-branch not removing commits when it should in 2.7.0 John Fultz
2016-01-19 21:14 ` Junio C Hamano
2016-01-19 21:35 ` Junio C Hamano
2016-01-19 21:37 ` Jeff King
2016-01-19 21:46 ` Junio C Hamano
2016-01-19 21:51 ` [PATCH] filter-branch: resolve $commit^{tree} in no-index case Jeff King
2016-01-19 21:59 ` Jeff King [this message]
2016-01-19 22:07 ` Jeff King
2016-01-19 22:23 ` Junio C Hamano
2016-01-19 22:28 ` Jeff King
2016-01-19 22:48 ` Jeff King
2016-01-20 1:22 ` Jonathan Nieder
2016-01-20 1:34 ` Jeff King
2016-01-20 1:51 ` Junio C Hamano
2016-01-20 2:00 ` Jeff King
2016-01-20 2:43 ` Junio C Hamano
2016-01-20 3:23 ` Junio C Hamano
2016-01-20 4:14 ` Jeff King
2016-01-20 0:47 ` Jonathan Nieder
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