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<?php |
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/* |
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* This file is part of php-cache\cache-bundle package. |
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* |
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* (c) 2015 Aaron Scherer <[email protected]>, Tobias Nyholm <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Cache\CacheBundle\Command; |
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use Cache\Taggable\TaggablePoolInterface; |
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use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand; |
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use Symfony\Component\Console\Input\ArrayInput; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Symfony\Component\Console\Question\ConfirmationQuestion; |
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/** |
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* Class CacheFlushCommand. |
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* |
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* @author Aaron Scherer <[email protected]> |
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*/ |
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class CacheFlushCommand extends ContainerAwareCommand |
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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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$this->setName('cache:flush'); |
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$this->setDescription('Flushes the given cache'); |
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$this->addArgument('type', InputArgument::OPTIONAL, sprintf('Which type of cache do you want to clear? Valid types are: %s', implode(', ', $this->getValidTypes()))); |
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$this->addArgument('service', InputArgument::OPTIONAL, 'If using type "provider" you must give a service id for the cache you want to clear.'); |
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$this->setHelp(<<<'EOD' |
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Types and their description |
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all Clear all types of caches |
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annotation Clear annotation cache |
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doctrine Clear doctrine cache for query, result and metadata |
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privider cache.acme Clear all the cache for the provider with service id "cache.acme" |
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router Clear router cache |
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serializer Clear serializer cache |
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session Clear session cache. All your logged in users will be logged out. |
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symfony Clear Symfony cache. This is the same as cache:clear |
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validation Clear validation cache |
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EOD |
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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) |
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{ |
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if (false === $type = $this->verifyArguments($input, $output)) { |
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return 0; |
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} |
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$builtInTypes = ['annotation', 'doctrine', 'serializer', 'session', 'router', 'validation']; |
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if (in_array($type, $builtInTypes)) { |
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return $this->clearCacheForBuiltInType($type) ? 0 : 1; |
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} |
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if ($type === 'symfony') { |
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return $this->clearSymfonyCache($output) ? 0 : 1; |
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} |
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if ($type === 'provider') { |
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return $this->clearCacheForProvider($input->getArgument('service')) ? 0 : 1; |
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} |
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if ($type === 'all') { |
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$result = true; |
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foreach ($builtInTypes as $builtInType) { |
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$result = $result && $this->clearCacheForBuiltInType($builtInType); |
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} |
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$result = $result && $this->clearSymfonyCache($output); |
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return $result ? 0 : 1; |
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} |
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} |
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/** |
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* Clear the cache for a type. |
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* |
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* @param string $type |
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* |
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* @return bool |
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*/ |
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private function clearCacheForBuiltInType($type) |
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{ |
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if (!$this->getContainer()->hasParameter(sprintf('cache.%s', $type))) { |
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return true; |
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} |
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$config = $this->getContainer()->getParameter(sprintf('cache.%s', $type)); |
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if ($type === 'doctrine') { |
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$result = true; |
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$result = $result && $this->clearTypedCacheFromService($type, $config['metadata']['service_id']); |
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$result = $result && $this->clearTypedCacheFromService($type, $config['result']['service_id']); |
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$result = $result && $this->clearTypedCacheFromService($type, $config['query']['service_id']); |
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return $result; |
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} else { |
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return $this->clearTypedCacheFromService($type, $config['service_id']); |
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} |
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} |
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/** |
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* @param string $type |
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* @param string $serviceId |
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* |
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* @return bool |
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*/ |
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private function clearTypedCacheFromService($type, $serviceId) |
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{ |
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/** @type \Psr\Cache\CacheItemPoolInterface $service */ |
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$service = $this->getContainer()->get($serviceId); |
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if ($service instanceof TaggablePoolInterface) { |
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return $service->clearTags([$type]); |
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} else { |
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return $service->clear(); |
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} |
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} |
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/** |
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* @param InputInterface $input |
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* @param OutputInterface $output |
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* |
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* @return string|bool type or false if invalid arguements |
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*/ |
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protected function verifyArguments(InputInterface $input, OutputInterface $output) |
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{ |
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$type = $input->getArgument('type'); |
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$validTypes = $this->getValidTypes(); |
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if ($type === null) { |
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// ask a question and default $type='all' |
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$helper = $this->getHelper('question'); |
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$question = new ConfirmationQuestion('Do you want to clear all cache? [N] ', false); |
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if (!$helper->ask($input, $output, $question)) { |
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return false; |
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} |
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$type = 'all'; |
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} |
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if (!in_array($type, $validTypes)) { |
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$output->writeln( |
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sprintf( |
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'<error>Type "%s" does not exist. Valid type are: %s.</error>', |
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$type, |
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implode(', ', $validTypes) |
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) |
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); |
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return false; |
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} |
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if ($type === 'provider' && !$input->hasArgument('service')) { |
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$output->writeln( |
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'<error>When using type "provider" you must specify a service id for that provider.</error>' |
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); |
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$output->writeln('<error>Usage: php app/console cache:flush provider cache.provider.acme</error>'); |
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return false; |
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} |
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return $type; |
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} |
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/** |
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* @param string $serviceId |
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* |
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* @return bool |
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*/ |
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protected function clearCacheForProvider($serviceId) |
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{ |
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/** @type \Psr\Cache\CacheItemPoolInterface $service */ |
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$service = $this->getContainer()->get($serviceId); |
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return $service->clear(); |
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} |
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/** |
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* @param OutputInterface $output |
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* |
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* @return bool |
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*/ |
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protected function clearSymfonyCache(OutputInterface $output) |
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{ |
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$command = $this->getApplication()->find('cache:clear'); |
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$arguments = [ |
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'command' => 'cache:clear', |
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]; |
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return $command->run(new ArrayInput($arguments), $output) === 0; |
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} |
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/** |
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* List of valid cache identifiers. |
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* |
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* @return string[] |
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*/ |
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private function getValidTypes() |
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{ |
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return ['all', 'annotation', 'session', 'serializer', 'router', 'doctrine', 'symfony', 'validation', 'provider']; |
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} |
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} |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.