Check if version exists

timdp · Apr 28, 2018 · bc7baaa · bc7baaa
1 parent 8ebcb78
commit bc7baaa
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/scripts/version.sh b/scripts/version.sh
@@ -4,5 +4,10 @@ set -e
 
 ver="v$1"
 
+if git rev-parse $ver >/dev/null 2>&1; then
+  echo Error: tag $ver already exists >&2
+  exit 1
+fi
+
 git commit --allow-empty -m "$ver"
 git tag -a "$ver" -m "$ver"