adding optional msg parameter to \cli\Progress\Bar::tick()

examples/common.php

@@ -23,3 +23,15 @@ function test_notify(cli\Notify $notify, $cycle = 1000000, $sleep = null) {
 	}
 	$notify->finish();
 }
+
+function test_notify_msg(cli\Notify $notify, $cycle = 1000000, $sleep = null) {
+	$notify->display();
+	for ($i = 0; $i < $cycle; $i++) {
+		// Sleep before tick to simulate time-intensive work and give time
+		// for the initial message to display before it is changed
+		if ($sleep) usleep($sleep);
+		$msg = sprintf('  Finished step %d', $i + 1);
+		$notify->tick(1, $msg);
+	}
+	$notify->finish();
+}

examples/progress.php

@@ -4,3 +4,4 @@
 
 test_notify(new \cli\progress\Bar('  \cli\progress\Bar displays a progress bar', 1000000));
 test_notify(new \cli\progress\Bar('  It sizes itself dynamically', 1000000));
+test_notify_msg(new \cli\progress\Bar('  It can even change its message', 5), 5, 1000000);

lib/cli/progress/Bar.php

@@ -13,6 +13,7 @@
 namespace cli\progress;
 
 use cli;
+use cli\Notify;
 use cli\Progress;
 use cli\Shell;
 use cli\Streams;
@@ -66,4 +67,19 @@ public function display($finish = false) {
 
 		Streams::out($this->_format, compact('msg', 'bar', 'timing'));
 	}
+
+	/**
+	 * This method augments the base definition from cli\Notify to optionally
+	 * allow passing a new message.
+	 *
+	 * @param int    $increment The amount to increment by.
+	 * @param string $msg       The text to display next to the Notifier. (optional)
+	 * @see cli\Notify::tick()
+	 */
+	public function tick($increment = 1, $msg = null) {
+		if ($msg) {
+			$this->_message = $msg;
+		}
+		Notify::tick($increment);
+	}
 }