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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Routing\Loader;
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use Symfony\Component\Config\FileLocatorInterface;
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use Symfony\Component\Config\Loader\DirectoryAwareLoaderInterface;
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use Symfony\Component\Config\Loader\Loader;
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use Symfony\Component\Config\Resource\DirectoryResource;
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use Symfony\Component\Routing\RouteCollection;
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/**
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* A loader that discovers controller classes in a directory that follows PSR-4.
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*
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* @author Alexander M. Turek <me@derrabus.de>
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*/
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final class Psr4DirectoryLoader extends Loader implements DirectoryAwareLoaderInterface
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{
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private ?string $currentDirectory = null;
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public function __construct(
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private readonly FileLocatorInterface $locator,
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) {
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// PSR-4 directory loader has no env-aware logic, so we drop the $env constructor parameter.
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parent::__construct();
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}
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/**
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* @param array{path: string, namespace: string} $resource
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*/
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public function load(mixed $resource, string $type = null): ?RouteCollection
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{
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$path = $this->locator->locate($resource['path'], $this->currentDirectory);
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if (!is_dir($path)) {
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return new RouteCollection();
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}
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return $this->loadFromDirectory($path, trim($resource['namespace'], '\\'));
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}
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public function supports(mixed $resource, string $type = null): bool
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{
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return ('attribute' === $type || 'annotation' === $type) && \is_array($resource) && isset($resource['path'], $resource['namespace']);
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}
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public function forDirectory(string $currentDirectory): static
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{
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$loader = clone $this;
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$loader->currentDirectory = $currentDirectory;
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return $loader;
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}
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private function loadFromDirectory(string $directory, string $psr4Prefix): RouteCollection
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{
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$collection = new RouteCollection();
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$collection->addResource(new DirectoryResource($directory, '/\.php$/'));
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$files = iterator_to_array(new \RecursiveIteratorIterator(
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new \RecursiveCallbackFilterIterator(
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new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
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function (\SplFileInfo $current) {
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return !str_starts_with($current->getBasename(), '.');
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}
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),
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\RecursiveIteratorIterator::SELF_FIRST
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));
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usort($files, function (\SplFileInfo $a, \SplFileInfo $b) {
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return (string) $a > (string) $b ? 1 : -1;
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});
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/** @var \SplFileInfo $file */
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foreach ($files as $file) {
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if ($file->isDir()) {
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$collection->addCollection($this->loadFromDirectory($file->getPathname(), $psr4Prefix.'\\'.$file->getFilename()));
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continue;
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}
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if ('php' !== $file->getExtension() || !class_exists($className = $psr4Prefix.'\\'.$file->getBasename('.php')) || (new \ReflectionClass($className))->isAbstract()) {
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continue;
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}
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$collection->addCollection($this->import($className, 'attribute'));
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}
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return $collection;
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}
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}
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