Current File : /home/tjamichg/cursos.tjamich.gob.mx/vendor/symfony/framework-bundle/Command/CacheClearCommand.php
<?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;
use Symfony\Component\HttpKernel\KernelInterface;
use Symfony\Component\Finder\Finder;
/**
* Clear and Warmup the cache.
*
* @author Francis Besset <francis.besset@gmail.com>
* @author Fabien Potencier <fabien@symfony.com>
*/
class CacheClearCommand extends ContainerAwareCommand
{
/**
* {@inheritdoc}
*/
protected function configure()
{
$this
->setName('cache:clear')
->setDefinition(array(
new InputOption('no-warmup', '', InputOption::VALUE_NONE, 'Do not warm up the cache'),
new InputOption('no-optional-warmers', '', InputOption::VALUE_NONE, 'Skip optional cache warmers (faster)'),
))
->setDescription('Clears the cache')
->setHelp(<<<'EOF'
The <info>%command.name%</info> command clears the application cache for a given environment
and debug mode:
<info>php %command.full_name% --env=dev</info>
<info>php %command.full_name% --env=prod --no-debug</info>
EOF
)
;
}
/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$outputIsVerbose = $output->isVerbose();
$io = new SymfonyStyle($input, $output);
$realCacheDir = $this->getContainer()->getParameter('kernel.cache_dir');
// the old cache dir name must not be longer than the real one to avoid exceeding
// the maximum length of a directory or file path within it (esp. Windows MAX_PATH)
$oldCacheDir = substr($realCacheDir, 0, -1).('~' === substr($realCacheDir, -1) ? '+' : '~');
$filesystem = $this->getContainer()->get('filesystem');
if (!is_writable($realCacheDir)) {
throw new \RuntimeException(sprintf('Unable to write in the "%s" directory', $realCacheDir));
}
if ($filesystem->exists($oldCacheDir)) {
$filesystem->remove($oldCacheDir);
}
$kernel = $this->getContainer()->get('kernel');
$io->comment(sprintf('Clearing the cache for the <info>%s</info> environment with debug <info>%s</info>', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
$this->getContainer()->get('cache_clearer')->clear($realCacheDir);
if ($input->getOption('no-warmup')) {
$filesystem->rename($realCacheDir, $oldCacheDir);
} else {
// the warmup cache dir name must have the same length than the real one
// to avoid the many problems in serialized resources files
$realCacheDir = realpath($realCacheDir);
$warmupDir = substr($realCacheDir, 0, -1).('_' === substr($realCacheDir, -1) ? '-' : '_');
if ($filesystem->exists($warmupDir)) {
if ($outputIsVerbose) {
$io->comment('Clearing outdated warmup directory...');
}
$filesystem->remove($warmupDir);
}
if ($outputIsVerbose) {
$io->comment('Warming up cache...');
}
$this->warmup($warmupDir, $realCacheDir, !$input->getOption('no-optional-warmers'));
$filesystem->rename($realCacheDir, $oldCacheDir);
if ('\\' === DIRECTORY_SEPARATOR) {
sleep(1); // workaround for Windows PHP rename bug
}
$filesystem->rename($warmupDir, $realCacheDir);
}
if ($outputIsVerbose) {
$io->comment('Removing old cache directory...');
}
$filesystem->remove($oldCacheDir);
if ($outputIsVerbose) {
$io->comment('Finished');
}
$io->success(sprintf('Cache for the "%s" environment (debug=%s) was successfully cleared.', $kernel->getEnvironment(), var_export($kernel->isDebug(), true)));
}
/**
* @param string $warmupDir
* @param string $realCacheDir
* @param bool $enableOptionalWarmers
*/
protected function warmup($warmupDir, $realCacheDir, $enableOptionalWarmers = true)
{
// create a temporary kernel
$realKernel = $this->getContainer()->get('kernel');
$realKernelClass = get_class($realKernel);
$namespace = '';
if (false !== $pos = strrpos($realKernelClass, '\\')) {
$namespace = substr($realKernelClass, 0, $pos);
$realKernelClass = substr($realKernelClass, $pos + 1);
}
$tempKernel = $this->getTempKernel($realKernel, $namespace, $realKernelClass, $warmupDir);
$tempKernel->boot();
$tempKernelReflection = new \ReflectionObject($tempKernel);
$tempKernelFile = $tempKernelReflection->getFileName();
// warmup temporary dir
$warmer = $tempKernel->getContainer()->get('cache_warmer');
if ($enableOptionalWarmers) {
$warmer->enableOptionalWarmers();
}
$warmer->warmUp($warmupDir);
// fix references to the Kernel in .meta files
$safeTempKernel = str_replace('\\', '\\\\', get_class($tempKernel));
$realKernelFQN = get_class($realKernel);
foreach (Finder::create()->files()->name('*.meta')->in($warmupDir) as $file) {
file_put_contents($file, preg_replace(
'/(C\:\d+\:)"'.$safeTempKernel.'"/',
sprintf('$1"%s"', $realKernelFQN),
file_get_contents($file)
));
}
// fix references to cached files with the real cache directory name
$search = array($warmupDir, str_replace('\\', '\\\\', $warmupDir));
$replace = str_replace('\\', '/', $realCacheDir);
foreach (Finder::create()->files()->in($warmupDir) as $file) {
$content = str_replace($search, $replace, file_get_contents($file));
file_put_contents($file, $content);
}
// fix references to kernel/container related classes
$fileSearch = $tempKernel->getName().ucfirst($tempKernel->getEnvironment()).'*';
$search = array(
$tempKernel->getName().ucfirst($tempKernel->getEnvironment()),
sprintf('\'kernel.name\' => \'%s\'', $tempKernel->getName()),
sprintf('key="kernel.name">%s<', $tempKernel->getName()),
);
$replace = array(
$realKernel->getName().ucfirst($realKernel->getEnvironment()),
sprintf('\'kernel.name\' => \'%s\'', $realKernel->getName()),
sprintf('key="kernel.name">%s<', $realKernel->getName()),
);
foreach (Finder::create()->files()->name($fileSearch)->in($warmupDir) as $file) {
$content = str_replace($search, $replace, file_get_contents($file));
file_put_contents(str_replace($search, $replace, $file), $content);
unlink($file);
}
// remove temp kernel file after cache warmed up
@unlink($tempKernelFile);
}
/**
* @param KernelInterface $parent
* @param string $namespace
* @param string $parentClass
* @param string $warmupDir
*
* @return KernelInterface
*/
protected function getTempKernel(KernelInterface $parent, $namespace, $parentClass, $warmupDir)
{
$cacheDir = var_export($warmupDir, true);
$rootDir = var_export(realpath($parent->getRootDir()), true);
$logDir = var_export(realpath($parent->getLogDir()), true);
// the temp kernel class name must have the same length than the real one
// to avoid the many problems in serialized resources files
$class = substr($parentClass, 0, -1).'_';
// the temp kernel name must be changed too
$name = var_export(substr($parent->getName(), 0, -1).'_', true);
$code = <<<EOF
<?php
namespace $namespace
{
class $class extends $parentClass
{
public function getCacheDir()
{
return $cacheDir;
}
public function getName()
{
return $name;
}
public function getRootDir()
{
return $rootDir;
}
public function getLogDir()
{
return $logDir;
}
protected function buildContainer()
{
\$container = parent::buildContainer();
// filter container's resources, removing reference to temp kernel file
\$resources = \$container->getResources();
\$filteredResources = array();
foreach (\$resources as \$resource) {
if ((string) \$resource !== __FILE__) {
\$filteredResources[] = \$resource;
}
}
\$container->setResources(\$filteredResources);
return \$container;
}
}
}
EOF;
$this->getContainer()->get('filesystem')->mkdir($warmupDir);
file_put_contents($file = $warmupDir.'/kernel.tmp', $code);
require_once $file;
$class = "$namespace\\$class";
return new $class($parent->getEnvironment(), $parent->isDebug());
}
}
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