git-upload-pack: Support the multi_ack protocol

[git.git] / git-tag.sh

diff --git a/git-tag.sh b/git-tag.sh
index 25c1a0e..faa7667 100755 (executable)
--- a/git-tag.sh
+++ b/git-tag.sh
@@ -53,6 +53,8 @@ if [ -e "$GIT_DIR/refs/tags/$name" -a -z "$force" ]; then
     die "tag '$name' already exists"
 fi
 shift
+git-check-ref-format "tags/$name" ||
+       die "we do not like '$name' as a tag name."
 
 object=$(git-rev-parse --verify --default HEAD "$@") || exit 1
 type=$(git-cat-file -t $object) || exit 1