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From: Junio C Hamano <gitster@pobox.com>
To: Pete Harlan <pgit@pcharlan.com>
Cc: Piotr Krukowiecki <piotr.krukowiecki@gmail.com>,
	"Mikhail T." <mi+thun@aldan.algebra.com>,
	Johannes Sixt <j6t@kdbg.org>,
	git@vger.kernel.org
Subject: Re: How to fork a file (git cp ?)
Date: Sun, 08 May 2011 13:03:03 -0700	[thread overview]
Message-ID: <7vd3jtrmdk.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <4DC6F1C8.8040007@pcharlan.com> (Pete Harlan's message of "Sun, 08 May 2011 12:40:56 -0700")

Pete Harlan <pgit@pcharlan.com> writes:

> Rename detection compares new files against deleted files.  Copy
> detection compares new files against every file in the tree, which is
> usually much more costly.

Almost correct.  Copy detection usually compares new paths with paths
modified in the same commit.  "Every file in the tree" is done only when
you ask to find copies harder.

      reply	other threads:[~2011-05-08 20:03 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-04 17:56 How to fork a file (git cp ?) Mikhail T.
2011-05-04 18:16 ` Johannes Sixt
2011-05-04 18:22 ` Johannes Sixt
2011-05-04 19:05   ` Stephen Bash
2011-05-04 19:17   ` Mikhail T.
2011-05-04 20:36     ` Øyvind A. Holm
2011-05-04 21:02   ` Junio C Hamano
2011-05-05  1:58     ` Mikhail T.
2011-05-05  2:14       ` Junio C Hamano
2011-05-05 18:02         ` Piotr Krukowiecki
2011-05-05 18:50           ` Junio C Hamano
2011-05-05 19:27             ` Piotr Krukowiecki
2011-05-05 19:31         ` Mikhail T.
2011-05-05 20:01           ` Jeff King
2011-05-05 20:01           ` Piotr Krukowiecki
2011-05-05 20:06             ` Piotr Krukowiecki
2011-05-05 20:07             ` Jeff King
2011-05-08 19:40             ` Pete Harlan
2011-05-08 20:03               ` Junio C Hamano [this message]

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