From dabc42ea2566f4ea2ea35f5f2ccf1b16c3be8a7c Mon Sep 17 00:00:00 2001
From: Djeeberjr <djeeberjr@gmail.com>
Date: Sat, 4 Feb 2023 20:44:02 +0100
Subject: [PATCH] print help in rs command

---
 src/bin/Redstone.hx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/bin/Redstone.hx b/src/bin/Redstone.hx
index e099eb5..8c620dc 100644
--- a/src/bin/Redstone.hx
+++ b/src/bin/Redstone.hx
@@ -13,6 +13,11 @@ class Redstone extends CLIApp {
 	public function invoke(handle:TermHandle):Future<Bool> {
 		var subcommand = handle.args[0];
 
+		if (subcommand == null) {
+			handle.writeLn("Usage: redstone <on|off|get> <side>");
+			return Future.sync(false);
+		}
+
 		var side:Null<Side> = handle.args[1];
 		if (side == null) {
 			handle.writeLn("Invalid side");
@@ -27,6 +32,8 @@ class Redstone extends CLIApp {
 			case "get":
 				var value = Peripheral.instance.getRedstone(side).getAnalogInput();
 				handle.writeLn("Analog input: " + value);
+			case "help":
+				handle.writeLn("Usage: redstone <on|off|get> <side>");
 			default:
 				handle.writeLn("Invalid subcommand");
 				return Future.sync(false);