git/t/t4013/diff.show_--first-parent_master
Junio C Hamano 2bf6587349 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>
2010-03-09 01:11:19 -08:00

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$ git show --first-parent master
commit 59d314ad6f356dd08601a4cd5e530381da3e3c64
Merge: 9a6d494 c7a2ab9
Author: A U Thor <author@example.com>
Date: Mon Jun 26 00:04:00 2006 +0000
Merge branch 'side'
diff --git a/dir/sub b/dir/sub
index cead32e..992913c 100644
--- a/dir/sub
+++ b/dir/sub
@@ -4,3 +4,5 @@ C
D
E
F
+1
+2
diff --git a/file0 b/file0
index b414108..10a8a9f 100644
--- a/file0
+++ b/file0
@@ -4,3 +4,6 @@
4
5
6
+A
+B
+C
$