minor util script update

Author: ajohns

tag.sh

@@ -2,9 +2,25 @@
 #
 # Tag git repo with current version as defined in source.
 #
+push=
+
+while getopts p opt
+do
+    case $opt in
+    p) push=1;;
+    ?) printf "Usage: %s: [-p]\n" $0
+       exit 2;;
+    esac
+done
+
 version=$(cat src/rez/utils/_version.py | grep -w _rez_version | head -n1 | tr '"' ' ' | awk '{print $NF}')
 echo "tagging ${version}..."
 git tag $version
 if [ $? -ne 0 ]; then
     exit 1
 fi
+
+if [ ! -z "$push" ]; then
+    echo "pushing tags..."
+    git push --tags
+fi