aur: expand help text, require at least one argument

1 files changed, 10 insertions, 3 deletions

diff --git a/src/aur b/src/aur
index 29cc379..b325974 100755
--- a/src/aur
+++ b/src/aur
@@ -23,10 +23,13 @@
 cmd=${0##*/}
 
 usage() {
-	echo "Usage: $cmd pkgname-from-aur1 [pkgname-from-aur2 ...]"
+	echo "Usage: $cmd [-h] pkgname-from-aur1 [pkgname-from-aur2 ...]"
 	echo
-	echo "This script will download packages from aur to the current dir"
-	echo "and check their license for nonfree issues."
+	echo "This script will download packages from AUR to the current"
+	echo "directory and check their license for nonfree issues.  This does"
+	echo "not mean that they are free; they may be incorrectly labeled, or"
+	echo "have other freedom issues.  It's a tool to help Parabola"
+	echo "packagers, not to help users install things directly from AUR."
 }
 
 main() {
@@ -36,6 +39,10 @@ main() {
 			*) usage; exit 1;;
 		esac
 	done
+	if [[ $# -lt 1 ]]; then
+		usage >&2
+		return 1
+	fi
 
 	. $(librelib conf.sh)
 	load_files libretools