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vendor/symfony/framework-bundle/Command/CacheWarmupCommand.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\Command;
+
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\DependencyInjection\Dumper\Preloader;
+use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerAggregate;
+use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface;
+
+/**
+ * Warmup the cache.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final
+ */
+#[AsCommand(name: 'cache:warmup', description: 'Warm up an empty cache')]
+class CacheWarmupCommand extends Command
+{
+    public function __construct(
+        private CacheWarmerAggregate $cacheWarmer,
+    ) {
+        parent::__construct();
+    }
+
+    protected function configure(): void
+    {
+        $this
+            ->setDefinition([
+                new InputOption('no-optional-warmers', '', InputOption::VALUE_NONE, 'Skip optional cache warmers (faster)'),
+            ])
+            ->setHelp(<<<'EOF'
+The <info>%command.name%</info> command warms up the cache.
+
+Before running this command, the cache must be empty.
+
+EOF
+            )
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $io = new SymfonyStyle($input, $output);
+
+        $kernel = $this->getApplication()->getKernel();
+        $io->comment(\sprintf('Warming up the cache for the <info>%s</info> environment with debug <info>%s</info>', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
+
+        if (!$input->getOption('no-optional-warmers')) {
+            $this->cacheWarmer->enableOptionalWarmers();
+        }
+        $cacheDir = $kernel->getContainer()->getParameter('kernel.cache_dir');
+
+        if ($kernel instanceof WarmableInterface) {
+            $kernel->warmUp($cacheDir);
+        }
+
+        $buildDir = $kernel->getContainer()->getParameter('kernel.build_dir');
+
+        $preload = $this->cacheWarmer->warmUp($cacheDir, $buildDir);
+
+        if ($preload && $cacheDir === $buildDir && file_exists($preloadFile = $buildDir.'/'.$kernel->getContainer()->getParameter('kernel.container_class').'.preload.php')) {
+            Preloader::append($preloadFile, $preload);
+        }
+
+        $io->success(\sprintf('Cache for the "%s" environment (debug=%s) was successfully warmed.', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
+
+        return 0;
+    }
+}