Re: git-diff on touched files: bug or feature?

From: Junio C Hamano <gitster@pobox.com>
Date: Aug 1, 2007, 19:07 UTC
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.

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