Symfony\Component\Console\Application::run PHP Метод

    public function run(InputInterface $input = null, OutputInterface $output = null)
    {
        putenv('LINES=' . $this->terminal->getHeight());
        putenv('COLUMNS=' . $this->terminal->getWidth());
        if (null === $input) {
            $input = new ArgvInput();
        }
        if (null === $output) {
            $output = new ConsoleOutput();
        }
        $this->configureIO($input, $output);
        try {
            $exitCode = $this->doRun($input, $output);
        } catch (\Exception $e) {
            if (!$this->catchExceptions) {
                throw $e;
            }
            if ($output instanceof ConsoleOutputInterface) {
                $this->renderException($e, $output->getErrorOutput());
            } else {
                $this->renderException($e, $output);
            }
            $exitCode = $e->getCode();
            if (is_numeric($exitCode)) {
                $exitCode = (int) $exitCode;
                if (0 === $exitCode) {
                    $exitCode = 1;
                }
            } else {
                $exitCode = 1;
            }
        }
        if ($this->autoExit) {
            if ($exitCode > 255) {
                $exitCode = 255;
            }
            exit($exitCode);
        }
        return $exitCode;
    }

 /**
  * {@inheritdoc}
  */
 public function execute(ContainerInterface $app)
 {
     foreach ($this->commands as $command) {
         $this->console->add($app->create($command));
     }
     $this->console->run();
 }