added command handling

command_watcher.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+COMMAND_FILE=/tmp/command
+COMMAND_FILE_TMP=/tmp/command_tmp
+
+lounge_light() {
+	echo "not implemented"
+}
+
+lounge_light_toggle() {
+	./light.sh
+}
+
+cd "$(dirname $0)"
+touch "$COMMAND_FILE"
+chmod 666 "$COMMAND_FILE"
+while inotifywait -qq -e close_write "$COMMAND_FILE"; do
+	mv "$COMMAND_FILE" "$COMMAND_FILE_TMP"
+	sleep .1				# wait for possible further/parallel writes to end
+	while IFS='' read -r line || [[ -n "$line" ]]; do
+		echo "Text read from file: $line"
+		case "$line" in
+			lounge_light_toggle)
+				lounge_light_toggle
+				;;
+			lounge_light*)
+				lounge_light "$COMMAND"
+				;;
+			*)
+				echo "ERROR; available commands:" >&2
+				echo "lounge_light lounge_light_toggle" >&2
+				;;
+		esac
+	done < "$COMMAND_FILE_TMP"
+	rm "$COMMAND_FILE_TMP"
+	touch "$COMMAND_FILE"
+	chmod 666 "$COMMAND_FILE"
+done