From f0f6163c3c69042f08bbd86138cd397284d03f73 Mon Sep 17 00:00:00 2001
From: Philipp Bucher <philipp.bucher@tum.de>
Date: Sun, 6 Jan 2019 23:31:10 +0100
Subject: [PATCH] Update retrieve_pull_request.sh

---
 kratos/retrieve_pull_request.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kratos/retrieve_pull_request.sh b/kratos/retrieve_pull_request.sh
index 093deff..b97744b 100755
--- a/kratos/retrieve_pull_request.sh
+++ b/kratos/retrieve_pull_request.sh
@@ -22,6 +22,12 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+
+if [[ $# != 1 ]]; then
+    echo "Only one argument is allowed (name of branch)"
+    exit
+fi
+
 readonly branch=$1
 readonly dir=$(pwd)/$branch