notification support

ufwd

@@ -19,9 +19,12 @@ main() {
 	while (( $# )); do
 		case "$1" in
 			(--help|-h) usage; return 0;;
+
 			(--workdir|-d) cfg_workdir="$2"; shift;;
 			(--scan-delay|-D) cfg_scan_delay="$2"; shift;;
 
+			(--notify|-n) flag_enable_notifications=1;;
+
 			(--) shift; break;;
 			(-*)
 				err "Unknown key: $1"
@@ -34,6 +37,15 @@ main() {
 		shift
 	done
 
+	if (( flag_enable_notifications )); then
+		if type -P notify-send &>/dev/null; then
+			msg "Found notify-send."
+		else
+			err "notify-send not found in PATH, disabling notifications."
+			flag_enable_notifications=0
+		fi
+	fi
+
 	mkdir -p "$cfg_workdir" || {
 		return 1
 	}
@@ -44,7 +56,18 @@ main() {
 
 	while sleep "$cfg_scan_delay"; do
 		for i in *; do
-			ufw -R "$i"
+			upload_output=$( ufw -R "$i" )
+			upload_return=$?
+
+			if (( flag_enable_notifications )); then
+				if (( $upload_return )); then
+					notify-send 'ufwd' "File upload failed: $upload_output"
+				else
+					notify-send 'ufwd' "File uploaded: $upload_output"
+				fi
+			fi
+
+			printf '%s\n' "$upload_output"
 		done
 	done
 }