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vendor/symfony/framework-bundle/CacheWarmer/ConfigBuilderCacheWarmer.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\Bundle\FrameworkBundle\CacheWarmer;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Config\Builder\ConfigBuilderGenerator;
+use Symfony\Component\Config\Builder\ConfigBuilderGeneratorInterface;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\ConfigurationExtensionInterface;
+use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
+use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
+use Symfony\Component\HttpKernel\KernelInterface;
+
+/**
+ * Generate all config builders.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class ConfigBuilderCacheWarmer implements CacheWarmerInterface
+{
+    private KernelInterface $kernel;
+    private ?LoggerInterface $logger;
+
+    public function __construct(KernelInterface $kernel, ?LoggerInterface $logger = null)
+    {
+        $this->kernel = $kernel;
+        $this->logger = $logger;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function warmUp(string $cacheDir): array
+    {
+        $generator = new ConfigBuilderGenerator($this->kernel->getBuildDir());
+
+        foreach ($this->kernel->getBundles() as $bundle) {
+            $extension = $bundle->getContainerExtension();
+            if (null === $extension) {
+                continue;
+            }
+
+            try {
+                $this->dumpExtension($extension, $generator);
+            } catch (\Exception $e) {
+                $this->logger?->warning('Failed to generate ConfigBuilder for extension {extensionClass}: '.$e->getMessage(), ['exception' => $e, 'extensionClass' => $extension::class]);
+            }
+        }
+
+        // No need to preload anything
+        return [];
+    }
+
+    private function dumpExtension(ExtensionInterface $extension, ConfigBuilderGeneratorInterface $generator): void
+    {
+        $configuration = null;
+        if ($extension instanceof ConfigurationInterface) {
+            $configuration = $extension;
+        } elseif ($extension instanceof ConfigurationExtensionInterface) {
+            $configuration = $extension->getConfiguration([], new ContainerBuilder($this->kernel->getContainer()->getParameterBag()));
+        }
+
+        if (!$configuration) {
+            return;
+        }
+
+        $generator->build($configuration);
+    }
+
+    public function isOptional(): bool
+    {
+        return true;
+    }
+}