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vendor/symfony/routing/Loader/Psr4DirectoryLoader.php

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