From 895e8d086ff859ba9fb50f8b72a97e3d934d9472 Mon Sep 17 00:00:00 2001
From: Hui Chen <hchenxa@cn.ibm.com>
Date: Wed, 6 Sep 2017 16:40:50 +0800
Subject: [PATCH] fix unbound variable issue when get version

---
 scripts/get | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/scripts/get b/scripts/get
index 4ebc892af..88a6fa1a7 100755
--- a/scripts/get
+++ b/scripts/get
@@ -191,9 +191,14 @@ export INPUT_ARGUMENTS="${@}"
 set -u
 while [[ $# -gt 0 ]]; do
   case $1 in
-    '--version'|-v) 
-       export DESIRED_VERSION="${2}" 
+    '--version'|-v)
        shift
+       if [[ $# -ne 0 ]]; then
+           export DESIRED_VERSION="${1}"
+       else
+           echo -e "Please provide the desired version. e.g. --version v2.4.0 or -v latest"
+           exit 0
+       fi
        ;;
     '--help'|-h) 
        help