From 3a5e42fc90730ba5ae8fcd0cfd5d7b0109613a25 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Wed, 28 Oct 2015 16:10:06 -0400
Subject: main(): Replace show_menu() with an argument

---
diff --git a/src/main.sh b/src/main.sh
index c4b7491..42e4d96 100644
--- a/src/main.sh
+++ b/src/main.sh
@@ -19,19 +19,23 @@ set -u
 
 usage()
 {
-	printf 'Usage: %s [option ...]\n' "${0}"
+	printf 'Usage: %s [option ...] <action>\n' "${0}"
 }
 
 help()
 {
 	usage
 	cat <<EOF
+
 Options:
   -h            Display this information
   -V            Display version information
   -i {cli|tui}  Select either a textual user interface or a command line
                 interface (default: cli)
   -o <file>     Log output to <file>
+
+Actions:
+  update        Update firmware
 EOF
 }
 
@@ -50,6 +54,7 @@ main()
 {
 	local opt=
 	local ui='cli'
+	local action=
 
 	unset OPTARG
 	while getopts 'hVi:o:' opt; do
@@ -73,10 +78,18 @@ main()
 	done
 	shift $(($OPTIND - 1))
 
-	if [ ${#} -ne 0 ]; then
+	if [ ${#} -ne 1 ]; then
 		usage >&2
 		exit 1
 	fi
+	action="${1}"
+
+	case "${action}" in
+		'update');;
+		*)
+			usage >&2
+			exit 1
+	esac
 
 	if ! init_ui "${ui}"; then
 		exit 1
@@ -84,18 +97,13 @@ main()
 	srand $(expr ${$} + $(date '+%s'))
 	init_temp_dir
 
-	while :; do
-		case "$(show_menu 'Firmware Manager' 'Update firmware' \
-				'Exit')" in
-			0)
-				do_update
-				;;
-			1)
-				info 'Exiting'
-				break
-				;;
-		esac
-	done
+	case "${action}" in
+		'update')
+			do_update
+			;;
+	esac
+
+	info 'Exiting'
 
 	fini_temp_dir
 	exit_ui
--
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