How to improve your Symfony commands

1-initialization.sh

composer create-project symfony/website-skeleton sandbox
cd sandbox
composer install --optimize-autoloader

2-default-command.php

<?php

declare(strict_types=1);

namespace App\Command;

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class DefaultCommand extends Command
{
    /**
     * {@inheritdoc}
     */
    protected static $defaultName = 'app:default';

    /**
     * {@inheritdoc}
     */
    protected function configure(): void
    {
        $this->setDescription('Wrapper of the default "list" command');
        $this->setHidden(true);
    }

    # ...
}

3-default-command.php

    /**
     * {@inheritdoc}
     */
    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        /** @var Application $application */
        $application = $this->getApplication();

        $command = $application->find('list');
        $arguments = ['namespace' => 'app'];

        $listInput = new ArrayInput($arguments);

        return $command->run($listInput, $output);
    }

4-console.diff

$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
$application = new Application($kernel);
+ $application->setDefaultCommand(\App\Command\DefaultCommand::getDefaultName());
$application->run($input);

5-console.diff

- use Symfony\Bundle\FrameworkBundle\Console\Application;
+ use App\Application;

6-application.php

<?php

declare(strict_types=1);

namespace App;

class Application extends \Symfony\Component\Console\Application
{
    /**
     * {@inheritdoc}
     *
     * @param Kernel $kernel
     */
    public function __construct(KernelInterface $kernel)
    {
        parent::__construct($kernel);

        if ($defaultName = DefaultCommand::getDefaultName()) {
            $this->setDefaultCommand($defaultName);
        }
    }
}

7-application.php

<?php

declare(strict_types=1);

namespace App;

use App\Command\DefaultCommand;
use Symfony\Bundle\FrameworkBundle\Console\Application as SymfonyApplication;
use Symfony\Component\HttpKernel\KernelInterface;

class Application extends SymfonyApplication
{
    public const CONSOLE_LOGO = <<<'ASCII'
  ___                _   _    _           
 / __| ___ _ __  ___| |_| |_ (_)_ _  __ _ 
 \__ \/ _ \ '  \/ -_)  _| ' \| | ' \/ _` |
 |___/\___/_|_|_\___|\__|_||_|_|_||_\__, |
                                    |___/ 


ASCII;

    public const CONSOLE_NAME = 'Something';

    /**
     * {@inheritdoc}
     *
     * @param Kernel $kernel
     */
    public function __construct(KernelInterface $kernel)
    {
        parent::__construct($kernel);

        if ($defaultName = DefaultCommand::getDefaultName()) {
            $this->setDefaultCommand($defaultName);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function getHelp(): string
    {
        return self::CONSOLE_LOGO.parent::getHelp();
    }

    /**
     * {@inheritdoc}
     */
    public function getName(): string
    {
        return self::CONSOLE_NAME;
    }

    /**
     * {@inheritdoc}
     */
    public function getVersion(): string
    {
        return 'X.Y.Z';
    }
}