From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [Bug] git add -i fails in multiple ways prior to first commit.
Date: Wed, 13 Feb 2008 03:30:44 -0800
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Cc: "Rhodes, Kate" <masukomi@gmail.com>, git@vger.kernel.org
To: Jeff King <peff@peff.net>
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Jeff King <peff@peff.net> writes:

> However, I wonder if this is the best approach. It would be nice if
> there were a shorthand for "the empty tree" for diffing, so you could
> just diff against that rather than HEAD, and have the regular plumbing
> generate.

I guess you can set your worktree to an empty directory and run
diff-files backwards, like perhaps:

	mkdir /var/tmp/empty
        (cd .git && GIT_WORK_TREE=/var/tmp/empty git diff -R)

Have I tried it?  No --- I am not sick enough to be motivated.