262 lines
9.9 KiB
PHP
262 lines
9.9 KiB
PHP
<?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\Bundle\FrameworkBundle\Command;
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use Symfony\Component\Console\Command\Command;
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use Symfony\Component\Console\Exception\RuntimeException;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Style\SymfonyStyle;
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use Symfony\Component\DependencyInjection\Dumper\Preloader;
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use Symfony\Component\EventDispatcher\EventDispatcher;
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use Symfony\Component\Filesystem\Exception\IOException;
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use Symfony\Component\Filesystem\Filesystem;
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use Symfony\Component\Finder\Finder;
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use Symfony\Component\HttpKernel\CacheClearer\CacheClearerInterface;
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use Symfony\Component\HttpKernel\RebootableInterface;
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/**
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* Clear and Warmup the cache.
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*
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* @author Francis Besset <francis.besset@gmail.com>
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* @author Fabien Potencier <fabien@symfony.com>
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*
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* @final
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*/
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class CacheClearCommand extends Command
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{
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protected static $defaultName = 'cache:clear';
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protected static $defaultDescription = 'Clear the cache';
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private $cacheClearer;
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private $filesystem;
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public function __construct(CacheClearerInterface $cacheClearer, Filesystem $filesystem = null)
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{
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parent::__construct();
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$this->cacheClearer = $cacheClearer;
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$this->filesystem = $filesystem ?? new Filesystem();
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}
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/**
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* {@inheritdoc}
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*/
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protected function configure()
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{
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$this
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->setDefinition([
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new InputOption('no-warmup', '', InputOption::VALUE_NONE, 'Do not warm up the cache'),
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new InputOption('no-optional-warmers', '', InputOption::VALUE_NONE, 'Skip optional cache warmers (faster)'),
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])
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->setDescription(self::$defaultDescription)
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->setHelp(<<<'EOF'
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The <info>%command.name%</info> command clears and warms up the application cache for a given environment
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and debug mode:
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<info>php %command.full_name% --env=dev</info>
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<info>php %command.full_name% --env=prod --no-debug</info>
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EOF
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)
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;
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}
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/**
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* {@inheritdoc}
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*/
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protected function execute(InputInterface $input, OutputInterface $output): int
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{
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$fs = $this->filesystem;
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$io = new SymfonyStyle($input, $output);
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$kernel = $this->getApplication()->getKernel();
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$realCacheDir = $kernel->getContainer()->getParameter('kernel.cache_dir');
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$realBuildDir = $kernel->getContainer()->hasParameter('kernel.build_dir') ? $kernel->getContainer()->getParameter('kernel.build_dir') : $realCacheDir;
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// the old cache dir name must not be longer than the real one to avoid exceeding
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// the maximum length of a directory or file path within it (esp. Windows MAX_PATH)
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$oldCacheDir = substr($realCacheDir, 0, -1).(str_ends_with($realCacheDir, '~') ? '+' : '~');
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$fs->remove($oldCacheDir);
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if (!is_writable($realCacheDir)) {
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throw new RuntimeException(sprintf('Unable to write in the "%s" directory.', $realCacheDir));
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}
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$useBuildDir = $realBuildDir !== $realCacheDir;
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$oldBuildDir = substr($realBuildDir, 0, -1).('~' === substr($realBuildDir, -1) ? '+' : '~');
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if ($useBuildDir) {
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$fs->remove($oldBuildDir);
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if (!is_writable($realBuildDir)) {
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throw new RuntimeException(sprintf('Unable to write in the "%s" directory.', $realBuildDir));
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}
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if ($this->isNfs($realCacheDir)) {
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$fs->remove($realCacheDir);
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} else {
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$fs->rename($realCacheDir, $oldCacheDir);
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}
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$fs->mkdir($realCacheDir);
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}
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$io->comment(sprintf('Clearing the cache for the <info>%s</info> environment with debug <info>%s</info>', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
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if ($useBuildDir) {
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$this->cacheClearer->clear($realBuildDir);
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}
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$this->cacheClearer->clear($realCacheDir);
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// The current event dispatcher is stale, let's not use it anymore
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$this->getApplication()->setDispatcher(new EventDispatcher());
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$containerFile = (new \ReflectionObject($kernel->getContainer()))->getFileName();
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$containerDir = basename(\dirname($containerFile));
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// the warmup cache dir name must have the same length as the real one
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// to avoid the many problems in serialized resources files
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$warmupDir = substr($realBuildDir, 0, -1).('_' === substr($realBuildDir, -1) ? '-' : '_');
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if ($output->isVerbose() && $fs->exists($warmupDir)) {
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$io->comment('Clearing outdated warmup directory...');
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}
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$fs->remove($warmupDir);
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if ($_SERVER['REQUEST_TIME'] <= filemtime($containerFile) && filemtime($containerFile) <= time()) {
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if ($output->isVerbose()) {
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$io->comment('Cache is fresh.');
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}
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if (!$input->getOption('no-warmup') && !$input->getOption('no-optional-warmers')) {
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if ($output->isVerbose()) {
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$io->comment('Warming up optional cache...');
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}
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$warmer = $kernel->getContainer()->get('cache_warmer');
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// non optional warmers already ran during container compilation
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$warmer->enableOnlyOptionalWarmers();
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$preload = (array) $warmer->warmUp($realCacheDir);
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if ($preload && file_exists($preloadFile = $realCacheDir.'/'.$kernel->getContainer()->getParameter('kernel.container_class').'.preload.php')) {
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Preloader::append($preloadFile, $preload);
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}
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}
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} else {
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$fs->mkdir($warmupDir);
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if (!$input->getOption('no-warmup')) {
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if ($output->isVerbose()) {
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$io->comment('Warming up cache...');
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}
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$this->warmup($warmupDir, $realCacheDir, !$input->getOption('no-optional-warmers'));
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}
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if (!$fs->exists($warmupDir.'/'.$containerDir)) {
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$fs->rename($realBuildDir.'/'.$containerDir, $warmupDir.'/'.$containerDir);
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touch($warmupDir.'/'.$containerDir.'.legacy');
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}
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if ($this->isNfs($realBuildDir)) {
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$io->note('For better performances, you should move the cache and log directories to a non-shared folder of the VM.');
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$fs->remove($realBuildDir);
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} else {
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$fs->rename($realBuildDir, $oldBuildDir);
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}
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$fs->rename($warmupDir, $realBuildDir);
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if ($output->isVerbose()) {
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$io->comment('Removing old build and cache directory...');
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}
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if ($useBuildDir) {
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try {
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$fs->remove($oldBuildDir);
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} catch (IOException $e) {
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if ($output->isVerbose()) {
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$io->warning($e->getMessage());
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}
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}
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}
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try {
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$fs->remove($oldCacheDir);
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} catch (IOException $e) {
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if ($output->isVerbose()) {
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$io->warning($e->getMessage());
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}
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}
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}
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if ($output->isVerbose()) {
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$io->comment('Finished');
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}
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$io->success(sprintf('Cache for the "%s" environment (debug=%s) was successfully cleared.', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
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return 0;
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}
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private function isNfs(string $dir): bool
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{
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static $mounts = null;
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if (null === $mounts) {
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$mounts = [];
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if ('/' === \DIRECTORY_SEPARATOR && $files = @file('/proc/mounts')) {
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foreach ($files as $mount) {
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$mount = \array_slice(explode(' ', $mount), 1, -3);
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if (!\in_array(array_pop($mount), ['vboxsf', 'nfs'])) {
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continue;
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}
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$mounts[] = implode(' ', $mount).'/';
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}
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}
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}
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foreach ($mounts as $mount) {
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if (0 === strpos($dir, $mount)) {
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return true;
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}
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}
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return false;
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}
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private function warmup(string $warmupDir, string $realBuildDir, bool $enableOptionalWarmers = true)
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{
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// create a temporary kernel
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$kernel = $this->getApplication()->getKernel();
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if (!$kernel instanceof RebootableInterface) {
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throw new \LogicException('Calling "cache:clear" with a kernel that does not implement "Symfony\Component\HttpKernel\RebootableInterface" is not supported.');
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}
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$kernel->reboot($warmupDir);
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// warmup temporary dir
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if ($enableOptionalWarmers) {
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$warmer = $kernel->getContainer()->get('cache_warmer');
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// non optional warmers already ran during container compilation
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$warmer->enableOnlyOptionalWarmers();
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$preload = (array) $warmer->warmUp($warmupDir);
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if ($preload && file_exists($preloadFile = $warmupDir.'/'.$kernel->getContainer()->getParameter('kernel.container_class').'.preload.php')) {
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Preloader::append($preloadFile, $preload);
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}
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}
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// fix references to cached files with the real cache directory name
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$search = [$warmupDir, str_replace('\\', '\\\\', $warmupDir)];
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$replace = str_replace('\\', '/', $realBuildDir);
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foreach (Finder::create()->files()->in($warmupDir) as $file) {
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$content = str_replace($search, $replace, file_get_contents($file), $count);
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if ($count) {
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file_put_contents($file, $content);
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}
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}
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}
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}
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