[PATCH 2/2] handle empty notes gracefully

[Michael J Gruber <git@drmicha.warpmail.net>]

Currently, git-notes barfs when asked to show an empty (i.e.
non-existing) note. Change this to explicitely say there is none.
---
 git-notes.sh     |    2 ++
 t/t3301-notes.sh |    2 +-
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/git-notes.sh b/git-notes.sh
index bfdbaa8..9cbad02 100755
--- a/git-notes.sh
+++ b/git-notes.sh
@@ -58,6 +58,8 @@ edit)
 		"$GIT_NOTES_REF" $NEW_HEAD $CURRENT_HEAD
 ;;
 show)
+	git rev-parse -q --verify "$GIT_NOTES_REF":$COMMIT > /dev/null ||
+		die "No note for commit $COMMIT."
 	git show "$GIT_NOTES_REF":$COMMIT
 ;;
 *)
diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
index 4900dca..81d5028 100755
--- a/t/t3301-notes.sh
+++ b/t/t3301-notes.sh
@@ -36,7 +36,7 @@ test_expect_success 'need valid notes ref' '
 '
 
 # 1 indicates caught gracefully by die, 128 means git-show barfed
-test_expect_failure 'handle empty notes gracefully' '
+test_expect_success 'handle empty notes gracefully' '
 	git notes show || test 1 = $?
 '
 
-- 
1.6.1.2.253.ga34a