From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 01 Aug 2007 19:07:04 GMT
Subject: Re: git-diff on touched files: bug or feature?
Message-ID: <7vvebz3wh3.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <87vebzkrid.fsf@wine.dyndns.org>

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.