From mboxrd@z Thu Jan  1 00:00:00 1970
From: "J. Bruce Fields" <bfields@fieldses.org>
Subject: Re: A few usability question about git diff --cached
Date: Thu, 4 Oct 2007 12:19:35 -0400
Message-ID: <20071004161935.GC17487@fieldses.org>
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Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
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	Miklos Vajna <vmiklos@frugalware.org>,
	Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>,
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To: Matthieu Moy <Matthieu.Moy@imag.fr>
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On Thu, Oct 04, 2007 at 06:02:21PM +0200, Matthieu Moy wrote:
> "J. Bruce Fields" <bfields@fieldses.org> writes:
> 
> > Yes, the index differs from the work tree or HEAD temporarily, 
> 
> Temporarily, yes, but the _point_ of having it is to have it differ
> from HEAD (otherwise, you can't create a new revision), and from the
> tree (otherwise, index-related commands are useless).

Getting a nearly-instantaneous "git diff" would be sufficiently
important to justify its existance on its own, so I think you're
overstating the case.

> The stat-information, and sha1sum are actually a cache, but they don't
> have to be user-visible, except for speed.

That's a big exception.--b.

> "diff --cached" has nothing to do with the stat information for the
> user.