fix: show “invalid command” error

- see: preactjs/preact-cli#813

Author: lukeed

lib/index.js

@@ -38,7 +38,7 @@ class Sade {
 		usage = usage.join(' '); // to string
 
 		this.tree[cmd] = { usage, options:[], alias:{}, default:{}, examples:[] };
-		desc && this.describe(desc);
+		if (desc) this.describe(desc);
 
 		return this;
 	}
@@ -112,8 +112,8 @@ class Sade {
 				cmd = this.tree[name];
 				arr.unshift(name);
 				offset++;
-			} else if (name) {
-				return $.error(bin, `Invalid command: ${name}`);
+			} else if (tmp) {
+				return $.error(bin, `Invalid command: ${tmp}`);
 			} //=> else: cmd not specified, wait for now...
 		}
 

test/usage.js

@@ -37,7 +37,7 @@ test('(usage) basic :: error :: invalid command', t => {
 	t.is(pid.status, 1, 'exits with error code');
 	t.is(
 		pid.stderr.toString(),
-		'\n  ERROR\n    Invalid command: foobar.\n\n  Run `$ bin --help` for more info.\n\n',
+		'\n  ERROR\n    Invalid command: foobar\n\n  Run `$ bin --help` for more info.\n\n',
 		'~> stderr has "Invalid command: foobar" error message'
 	);
 	t.is(pid.stdout.length, 0, '~> stdout is empty');