[PATCH] Makes 'git-stash show' stay quiet when there are no stashes.

[Jing Xue <jingxue@digizenstudio.com>]

(I tried to send this trivial patch for a couple of times using
git-send-email, but somehow it never turned up.)

Currently when there are no stashes, 'git stash show' basically aborts with an
error message from rev-parse: "fatal: Needed a single revision", which can be
confusing. This patch makes git-stash keep quiet and exit gracefully in that
case.

---
 git-stash.sh |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/git-stash.sh b/git-stash.sh
index f16fd9c..dbdaeaf 100755
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -119,6 +119,10 @@ show_stash () {
 		flags=--stat
 	fi
 	s=$(git rev-parse --revs-only --no-flags --default $ref_stash "$@")
+	if test -z "$s"
+	then
+		exit 0
+	fi
 
 	w_commit=$(git rev-parse --verify "$s") &&
 	b_commit=$(git rev-parse --verify "$s^") &&
-- 
1.5.4.rc0.1.g3696