[PATCH 4/4] revert: improve success message by adding abbreviated commit sha1

[Christian Couder <chriscool@tuxfamily.org>]

Instead of "Finished one cherry-pick." or "Finished one
revert.", we now print "Finished cherry-pick commit
<abbreviated sha1>." or "Finished revert commit
<abbreviated sha1>." which is more informative especially
when cherry-picking or reverting many commits.

In case of failure the message is now "Automatic
cherry-pick commit <abbreviated sha1> failed." instead of
"Automatic cherry-pick failed.".

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin/revert.c                    |    5 +++--
 t/t3508-cherry-pick-many-commits.sh |   12 ++++++------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/builtin/revert.c b/builtin/revert.c
index ec931bd..36479f9 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -492,7 +492,8 @@ static int do_pick_commit(void)
 		}
 	}
 
-	strbuf_addstr(&mebuf, me);
+	strbuf_addf(&mebuf, "%s commit %s", me,
+		    find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV));
 
 	if (!strategy || !strcmp(strategy, "recursive") || action == REVERT) {
 		res = do_recursive_merge(base, next, base_label, next_label,
@@ -521,7 +522,7 @@ static int do_pick_commit(void)
 		if (!no_commit)
 			res = run_git_commit(defmsg);
 		if (!res)
-			fprintf(stderr, "Finished one %s.\n", mebuf.buf);
+			fprintf(stderr, "Finished %s.\n", mebuf.buf);
 	}
 
 	strbuf_release(&mebuf);
diff --git a/t/t3508-cherry-pick-many-commits.sh b/t/t3508-cherry-pick-many-commits.sh
index 6555f92..1bd3ca1 100755
--- a/t/t3508-cherry-pick-many-commits.sh
+++ b/t/t3508-cherry-pick-many-commits.sh
@@ -24,9 +24,9 @@ test_expect_success setup '
 
 test_expect_success 'cherry-pick first..fourth works' '
 	cat <<-EOF > expected &&
-	Finished one cherry-pick.
-	Finished one cherry-pick.
-	Finished one cherry-pick.
+	Finished cherry-pick commit $(git rev-parse --short second).
+	Finished cherry-pick commit $(git rev-parse --short third).
+	Finished cherry-pick commit $(git rev-parse --short fourth).
 	EOF
 
 	git checkout -f master &&
@@ -41,9 +41,9 @@ test_expect_success 'cherry-pick first..fourth works' '
 
 test_expect_success 'cherry-pick --strategy resolve first..fourth works' '
 	cat <<-EOF > expected &&
-	Finished one cherry-pick with strategy resolve.
-	Finished one cherry-pick with strategy resolve.
-	Finished one cherry-pick with strategy resolve.
+	Finished cherry-pick commit $(git rev-parse --short second) with strategy resolve.
+	Finished cherry-pick commit $(git rev-parse --short third) with strategy resolve.
+	Finished cherry-pick commit $(git rev-parse --short fourth) with strategy resolve.
 	EOF
 
 	git checkout -f master &&
-- 
1.7.2.rc1.215.g2dff2.dirty