feat: add local-only mode for ssh menu

mtm-ssh-menu

@@ -8,15 +8,17 @@ type Args = {
 	help: boolean
 	configDir: string
 	knownHosts?: string | true
+	localOnly?: string | true
 }
 
 const usage = () => {
-	console.log("Usage: sshm [--config-dir DIR] [-k [user]]");
+	console.log("Usage: sshm [--config-dir DIR] [ [-k [user]] || [-l [user]] ]");
 	console.log("");
 	console.log("Options:");
 	console.log("  -h | --help                Show this help message");
 	console.log("  -c | --config-dir DIR      Use a custom config directory");
 	console.log("  -k | --known-hosts [user]  Include known_hosts (root if no user provided)");
+	console.log("  -l | --local-only [user]   Include known_hosts only (root if no user provided)");
 }
 
 const parseArgs = (argv: string[]): Args => {
@@ -57,6 +59,18 @@ const parseArgs = (argv: string[]): Args => {
 				break;
 			}
 
+			case "-l":
+			case "--local-only": {
+				const next = argv[i + 1];
+				if (next && !next.startsWith("-")) {
+					args.localOnly = next;
+					i++;
+				} else {
+					args.localOnly = true;
+				}
+				break;
+			}
+
 			default:
 				throw new Error(`Unknown argument: ${arg}`);
 		}
@@ -97,7 +111,8 @@ const loadConfig = async () => {
 					port: 22,
 					name: '',
 				}
-				if (args.knownHosts != true) target.user = args.knownHosts as string;
+				if (args.knownHosts && args.knownHosts != true) target.user = args.knownHosts as string;
+				if (args.localOnly && args.localOnly != true) target.user = args.localOnly as string;
 				if (parts[0].startsWith("[")) {
 					const hostparts: any = parts[0].split(":");
 					target.host = hostparts[0].substring(1, hostparts[0].length - 1);
@@ -146,8 +161,12 @@ const loadConfig = async () => {
 		}
 	}
 
-	if (args.knownHosts) await loadKnownHosts();
-	await loadHosts();
+	if (args.localOnly) {
+		await loadKnownHosts();
+	} else {
+		if (args.knownHosts) await loadKnownHosts();
+		await loadHosts();
+	}
 
 	return config;
 }