protected function registerRoboFileCommands($app)
{
if (!$this->loadRoboFile()) {
$this->yell("Robo is not initialized here. Please run `robo init` to create a new RoboFile", 40, 'yellow');
$app->addInitRoboFileCommand($this->roboFile, $this->roboClass);
$app->run(Robo::input(), Robo::output());
return;
}
$this->registerCommandClasses($app, $this->roboClass);
}