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From: Alexandre Julliard <julliard@winehq.org>
To: Junio C Hamano <gitster@pobox.com>
Cc: Matthieu Moy <Matthieu.Moy@imag.fr>, git@vger.kernel.org
Subject: Re: git-diff on touched files: bug or feature?
Date: Wed, 01 Aug 2007 21:17:48 +0200	[thread overview]
Message-ID: <87r6mnkqsj.fsf@wine.dyndns.org> (raw)
In-Reply-To: <7vvebz3wh3.fsf@assigned-by-dhcp.cox.net> (Junio C. Hamano's message of "Wed\, 01 Aug 2007 12\:07\:04 -0700")

Junio C Hamano <gitster@pobox.com> writes:

> Alexandre Julliard <julliard@winehq.org> writes:
>
>> .... For
>> instance in vc-git.el the workfile-unchanged-p function currently has
>> to rehash the file every time to see if it really changed, because we
>> can't afford to refresh the whole project at that point.
>
> Maybe I am missing something.  Why can't you "afford to"?
>
> "update-index --refresh" looks at only the files whose cached
> stat information does indicate there might be chanegs.  It does
> not rehash already up-to-date ones.

No, but it goes through the tree and stats every single file. On a
large project that can be slow, especially if you don't have enough
RAM to keep it all in cache, so it's not something we can do while the
user is interacting with a file.

-- 
Alexandre Julliard
julliard@winehq.org

  reply	other threads:[~2007-08-01 19:17 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-01 16:17 git-diff on touched files: bug or feature? Matthieu Moy
2007-08-01 17:26 ` Junio C Hamano
2007-08-01 19:02   ` Alexandre Julliard
2007-08-01 19:07     ` Junio C Hamano
2007-08-01 19:17       ` Alexandre Julliard [this message]
2007-08-02  9:23   ` Matthieu Moy
2007-08-02  9:51     ` Johannes Schindelin
2007-08-02  9:57       ` Matthieu Moy
2007-08-02 10:48         ` Johannes Schindelin
2007-08-02 14:04           ` Jean-François Veillette
2007-08-02 14:43             ` Johannes Schindelin
2007-08-02 15:10               ` Steven Grimm
2007-08-02 15:23                 ` Johannes Schindelin
2007-08-02 15:45                   ` Matthieu Moy
2007-08-02 17:58                     ` J. Bruce Fields
2007-08-03  5:37                   ` [PATCH] Add --show-touched option to show "diff --git" line when contents are unchanged Steven Grimm
2007-08-03  6:30                     ` Junio C Hamano
2007-08-03 10:23                       ` Johannes Schindelin
2007-08-03 20:33                         ` Junio C Hamano
2007-08-03 21:32                           ` Matthieu Moy
2007-08-03 21:50                             ` Junio C Hamano
2007-08-03 23:01                               ` Matthieu Moy
2007-08-03 23:36                                 ` Junio C Hamano
2007-08-05 19:42                                   ` Matthieu Moy
2007-08-05 19:45                                     ` Johannes Schindelin
2007-08-05 19:57                                       ` Matthieu Moy
2007-08-06 15:56                           ` Matthias Lederhofer
2007-08-06 16:10                           ` David Kastrup
2007-08-06 16:16                             ` David Kastrup
2007-08-06 20:05                             ` Matthieu Moy
2007-08-06 20:34                               ` Junio C Hamano
2007-08-07  6:32                                 ` David Kastrup
2007-08-07 13:34                                   ` J. Bruce Fields
2007-08-07  4:22                     ` Linus Torvalds
2007-08-07  4:37                       ` Junio C Hamano
2007-08-07  6:41                         ` David Kastrup
2007-08-08  3:07                         ` Linus Torvalds
2007-08-08  3:44                           ` Junio C Hamano
2007-08-08  8:26                           ` Johannes Schindelin
2007-08-08  8:43                             ` Junio C Hamano
2007-08-08  9:13                               ` David Kastrup
2007-08-08  9:23                               ` Johannes Schindelin
2007-08-08  9:58                                 ` Jakub Narebski
2007-08-07  5:56                       ` Steven Grimm
2007-08-07  5:57                         ` [PATCH] Add a note about the index being updated by git-status in some cases Steven Grimm
2007-08-07  6:35                         ` [PATCH] git-diff: Output a warning about stale files in the index Steven Grimm
2007-08-07  6:46                           ` Junio C Hamano
2007-08-07  7:17                             ` [PATCH v2] " Steven Grimm
2007-08-07  7:46                               ` Junio C Hamano
2007-08-07  7:51                                 ` Steven Grimm
2007-08-07  9:04                                 ` Jakub Narebski
2007-08-11 20:07                               ` Junio C Hamano
2007-08-08  3:42                         ` [PATCH] Add --show-touched option to show "diff --git" line when contents are unchanged Linus Torvalds
2007-08-07  6:39                       ` Steven Grimm
2007-08-07  6:47                       ` Matthieu Moy
2007-08-02 20:50             ` git-diff on touched files: bug or feature? Junio C Hamano
2007-08-02  9:54     ` Junio C Hamano
2007-08-02 10:01       ` Junio C Hamano
2007-08-02 12:08         ` Matthieu Moy
2007-08-02 12:21           ` Johannes Schindelin
2007-08-02 19:56           ` Junio C Hamano
2007-08-03  7:04             ` Jeff King
2007-08-03  7:59               ` Junio C Hamano
2007-08-03  8:24                 ` Jeff King
2007-08-03  8:57                   ` Junio C Hamano
2007-08-03  8:40                 ` Shawn O. Pearce
2007-08-03  9:13                   ` Junio C Hamano
2007-08-02 12:05       ` Matthieu Moy
2007-08-02 12:19         ` Johannes Schindelin
2007-08-02 12:26           ` Matthieu Moy
2007-08-02 14:39             ` Johannes Schindelin
2007-08-02 14:49               ` Matthieu Moy
2007-08-02 15:12                 ` Johannes Schindelin
2007-08-02 13:25           ` Joel Reed
2007-08-02 15:05             ` Johannes Schindelin

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