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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\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+/**
+ * Warmup the cache.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class CacheWarmupCommand extends ContainerAwareCommand
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this
+            ->setName('cache:warmup')
+            ->setDefinition(array(
+                new InputOption('no-optional-warmers', '', InputOption::VALUE_NONE, 'Skip optional cache warmers (faster)'),
+            ))
+            ->setDescription('Warms up an empty cache')
+            ->setHelp(<<<'EOF'
+The <info>%command.name%</info> command warms up the cache.
+
+Before running this command, the cache must be empty.
+
+This command does not generate the classes cache (as when executing this
+command, too many classes that should be part of the cache are already loaded
+in memory). Use <comment>curl</comment> or any other similar tool to warm up
+the classes cache if you want.
+
+EOF
+            )
+        ;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $io = new SymfonyStyle($input, $output);
+
+        $kernel = $this->getContainer()->get('kernel');
+        $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)));
+
+        $warmer = $this->getContainer()->get('cache_warmer');
+
+        if (!$input->getOption('no-optional-warmers')) {
+            $warmer->enableOptionalWarmers();
+        }
+
+        $warmer->warmUp($this->getContainer()->getParameter('kernel.cache_dir'));
+
+        $io->success(sprintf('Cache for the "%s" environment (debug=%s) was successfully warmed.', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
+    }
+}