From: Kirill Smelkov <kirr@mns.spb.ru>
Date: Wed, 5 Feb 2014 16:57:12 +0000 (+0400)
Subject: revision: convert to using diff_tree_sha1()
X-Git-Tag: v2.0.0-rc0~154^2~1
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/6275c91c08f16f9d9aefea39ab7dab8560f50512?ds=inline;hp=6275c91c08f16f9d9aefea39ab7dab8560f50512

revision: convert to using diff_tree_sha1()

Since diff_tree_sha1() can now accept empty trees via NULL sha1, we
could just call it without manually reading trees into tree_desc and
duplicating code.

Besides, that

if (!tree)
return 0;

looked suspect - we were saying an invalid tree != empty tree, but maybe it is
better to just say the tree is invalid here, which is what diff_tree_sha1()
does for such case.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---