X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=git-branch-script;h=041ca515ae700252ca03ea928b544be6bcdeab9c;hb=d59a6043a8a7aed97c684fb4f14fe5221df1fcaf;hp=ade0abf06987bdb78ede571de7afe927486a2c69;hpb=07ee0d77c66d6f356cd3f82435e67510779aa53c;p=git.git

diff --git a/git-branch-script b/git-branch-script
index ade0abf0..041ca515 100755
--- a/git-branch-script
+++ b/git-branch-script
@@ -3,7 +3,13 @@
 . git-sh-setup-script || die "Not a git archive"
 
 branchname="$1"
-rev=$(git-rev-parse --verify --default HEAD "$2"^0) || exit
+case "$2" in
+'')
+	head=HEAD ;;
+*)
+	head="$2^0" ;;
+esac
+rev=$(git-rev-parse --revs-only --verify "$head") || exit
 
 [ -z "$branchname" ] && die "git branch: I want a branch name"
 [ -e "$GIT_DIR/refs/heads/$branchname" ] && die "$branchname already exists"