cgit-chroot: Add usage

1 files changed, 7 insertions, 1 deletions

diff --git a/cgit-chroot b/cgit-chroot
index 1828ee5..5d229db 100755
--- a/cgit-chroot
+++ b/cgit-chroot
@@ -5,6 +5,11 @@ set -e
 CGIT_CHROOT=${CGIT_CHROOT:-/srv/cgit}
 CGIT_GIT_ROOT=${CGIT_GIT_ROOT:-/srv/git}
 
+usage() {
+	printf 'usage: cgit-chroot setup|teardown\n' >&2
+	exit 1
+}
+
 log() {
 	printf ' %s %s\n' "$1" "$2"
 }
@@ -63,9 +68,10 @@ teardown() {
 	done
 }
 
-test $# -eq 1 || exit 1
+test $# -eq 1 || usage
 
 case $1 in
 	setup) setup;;
 	teardown) teardown;;
+	*) usage;;
 esac