CommandRegistry.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Console;
 
use Psr\Container\ContainerInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\CommandLoader\CommandLoaderInterface;
use Symfony\Component\Console\Descriptor\ApplicationDescription;
use Symfony\Component\Console\Exception\CommandNotFoundException;
use ‪TYPO3\CMS\Core\SingletonInterface;
 
class ‪CommandRegistry implements CommandLoaderInterface, ‪SingletonInterface
{
    protected ‪$container;
 
    protected ‪$commandConfigurations = [];
 
    protected ‪$aliases = [];
 
    public function ‪__construct(ContainerInterface ‪$container)
    {
        $this->container = ‪$container;
    }
 
    public function ‪has($name)
    {
        return array_key_exists($name, $this->commandConfigurations);
    }
 
    public function get($name)
    {
        try {
            return $this->‪getCommandByIdentifier($name);
        } catch (‪UnknownCommandException $e) {
            throw new CommandNotFoundException($e->getMessage(), [], 1567969355, $e);
        }
    }
 
    public function ‪getNames()
    {
        return array_keys($this->commandConfigurations);
    }
 
    public function ‪getSchedulableCommands(): \Generator
    {
        foreach ($this->commandConfigurations as $commandName => $configuration) {
            if ($configuration['schedulable'] ?? true) {
                yield $commandName => $this->‪getInstance($configuration['serviceName']);
            }
        }
    }
 
    public function ‪getCommandByIdentifier(string $identifier): Command
    {
        if (!isset($this->commandConfigurations[$identifier])) {
            throw new ‪UnknownCommandException(
                sprintf('Command "%s" has not been registered.', $identifier),
                1510906768
            );
        }
 
        return $this->‪getInstance($this->commandConfigurations[$identifier]['serviceName']);
    }
 
    protected function ‪getInstance(string $service): Command
    {
        return $this->container->get($service);
    }
 
    public function ‪getNamespaces(): array
    {
        $namespaces = [];
        foreach ($this->commandConfigurations as $commandName => $configuration) {
            if ($configuration['hidden']) {
                continue;
            }
            if ($configuration['aliasFor'] !== null) {
                continue;
            }
            $namespace = $configuration['namespace'];
            $namespaces[$namespace]['id'] = $namespace;
            $namespaces[$namespace]['commands'][] = $commandName;
        }
 
        ksort($namespaces);
        foreach ($namespaces as &$commands) {
            ksort($commands);
        }
 
        return $namespaces;
    }
 
    public function ‪filter(string $namespace = null): array
    {
        $commands = [];
        foreach ($this->commandConfigurations as $commandName => $configuration) {
            if ($configuration['hidden']) {
                continue;
            }
            if ($namespace !== null && $namespace !== $this->‪extractNamespace($commandName, substr_count($namespace, ':') + 1)) {
                continue;
            }
            if ($configuration['aliasFor'] !== null) {
                continue;
            }
 
            $commands[$commandName] = $configuration;
            $commands[$commandName]['aliases'] = $this->aliases[$commandName] ?? [];
        }
 
        return $commands;
    }
 
    public function ‪addLazyCommand(
        string $commandName,
        string $serviceName,
        string $description = null,
        bool $hidden = false,
        bool $schedulable = false,
        string $aliasFor = null
    ): void {
        $this->commandConfigurations[$commandName] = [
            'name' => $aliasFor ?? $commandName,
            'serviceName' => $serviceName,
            'description' => $description,
            'hidden' => $hidden,
            'schedulable' => $schedulable,
            'aliasFor' => $aliasFor,
            'namespace' => $this->‪extractNamespace($commandName, 1),
        ];
 
        if ($aliasFor !== null) {
            $this->aliases[$aliasFor][] = $commandName;
        }
    }
 
    private function ‪extractNamespace(string $name, int $limit = null): string
    {
        $parts = explode(':', $name, -1);
        if (count($parts) === 0) {
            return ApplicationDescription::GLOBAL_NAMESPACE;
        }
 
        return implode(':', $limit === null ? $parts : array_slice($parts, 0, $limit));
    }
}