[PATCH] Make cherry-pick use rerere for conflict resolution.

[Abhijit Menon-Sen <ams@toroid.org>]

Trivial change plus test, as requested by Johannes Schindelin.

Signed-off-by: Abhijit Menon-Sen <ams@toroid.org>
---
 builtin-revert.c              |    2 +
 t/t3504-cherry-pick-rerere.sh |   45 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 0 deletions(-)
 create mode 100755 t/t3504-cherry-pick-rerere.sh

diff --git a/builtin-revert.c b/builtin-revert.c
index 27881e9..3667705 100644
--- a/builtin-revert.c
+++ b/builtin-revert.c
@@ -11,6 +11,7 @@
 #include "cache-tree.h"
 #include "diff.h"
 #include "revision.h"
+#include "rerere.h"
 
 /*
  * This implements the builtins revert and cherry-pick.
@@ -395,6 +396,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
 			die ("Error wrapping up %s", defmsg);
 		fprintf(stderr, "Automatic %s failed.%s\n",
 			me, help_msg(commit->object.sha1));
+		rerere();
 		exit(1);
 	}
 	if (commit_lock_file(&msg_file) < 0)
diff --git a/t/t3504-cherry-pick-rerere.sh b/t/t3504-cherry-pick-rerere.sh
new file mode 100755
index 0000000..957b298
--- /dev/null
+++ b/t/t3504-cherry-pick-rerere.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+test_description='cherry-pick should rerere for conflicts'
+
+. ./test-lib.sh
+
+echo foo > foo
+git add foo && git commit -q -m 1
+
+echo foo-master > foo
+git add foo && git commit -q -m 2
+
+git checkout -b dev HEAD^
+
+echo foo-dev > foo
+git add foo && git commit -q -m 3
+
+git config rerere.enabled true
+
+test_expect_success 'conflicting merge' '
+	test_must_fail git merge master
+'
+
+echo foo-dev > foo
+git add foo && git commit -q -m 4
+
+git reset --hard HEAD^
+
+echo foo-dev > expect
+
+test_expect_success 'cherry-pick conflict' '
+	test_must_fail git cherry-pick master &&
+	test_cmp expect foo
+'
+
+git config rerere.enabled false
+
+git reset --hard
+
+test_expect_success 'cherry-pick conflict without rerere' '
+	test_must_fail git cherry-pick master &&
+	test_must_fail test_cmp expect foo
+'
+
+test_done
-- 
1.6.0.rc2