Add usage and header

bollux

@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+# bollux: a bash gemini client
+# Author: Case Duckworth
+# License: MIT
+# Version: 0.1
 
 # Program information
 PRGN="${0##*/}"
@@ -6,6 +10,22 @@ VRSN=0.1
 # State
 REDIRECTS=0
 
+bollux_usage() {
+	cat <<END
+$PRGN (v. $VRSN): a bash gemini client
+usage:
+	$PRGN [-h]
+	$PRGN [-q] [-v] [URL]
+flags:
+	-h	show this help and exit
+	-q	be quiet: log no messages
+	-v	verbose: log more messages
+parameters:
+	URL	the URL to start in
+		If not provided, the user will be prompted.
+END
+}
+
 run() {
 	log debug "$@"
 	"$@"
@@ -49,8 +69,12 @@ bollux() {
 }
 
 bollux_args() {
-	while getopts :vq OPT; do
+	while getopts :hvq OPT; do
 		case "$OPT" in
+		h)
+			bollux_usage
+			exit
+			;;
 		v) BOLLUX_LOGLEVEL=DEBUG ;;
 		q) BOLLUX_LOGLEVEL=QUIET ;;
 		:) die 1 "Option -$OPTARG requires an argument" ;;