show --first-parent/-m: do not default to --cc
commit2bf6587349e31b582dae47954b1a334052230e28
authorJunio C Hamano <gitster@pobox.com>
Tue, 9 Mar 2010 08:22:54 +0000 (9 00:22 -0800)
committerJunio C Hamano <gitster@pobox.com>
Tue, 9 Mar 2010 09:11:19 +0000 (9 01:11 -0800)
tree4cd84f9e1fdde96fcbdad2cec1c4996542140879
parentb44900599710c700c1bf164d3753eb7f8eb6c18a
show --first-parent/-m: do not default to --cc

Given that "git show" always shows some diff and does not walk the history
by default, it is natural to expect "git show --first-parent" to show the
difference between the given commit and its first parent.  It also would
be natural, given that "--cc" is the default, "git show -m" to show
pairwise difference from each of the parents.

We however always defaulted to --cc and there was no way to turn it off.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-log.c
t/t4013-diff-various.sh
t/t4013/diff.show_--first-parent_master [new file with mode: 0644]
t/t4013/diff.show_-m_master [new file with mode: 0644]