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feature #23451 [Cache] Add (filesystem|phpfiles) cache (adapter|simple) prune method and prune command (robfrawley)
This PR was merged into the 3.4 branch. Discussion ---------- [Cache] Add (filesystem|phpfiles) cache (adapter|simple) prune method and prune command | Q | A | ------------- | --- | Branch? | 3.4 | Bug fix? | no | New feature? | yes | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #21764, #21764 (comment) | License | MIT | Doc PR | symfony/symfony-docs#8209 As requested in #21764 (comment), this PR adds a `prune()` method to [`FilesystemTrait`](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/FilesystemTrait.php). This placement seems reasonable as it exposes the method in [`FilesystemAdapter`](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Adapter/FilesystemAdapter.php) and [`FilesystemCache`](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Simple/FilesystemCache.php). The return value is a `bool` representing either a partial or complete failure (when `false`) *or* complete success (when `true`). Once the API for the `prune` method is confirmed, I'll introduce a documentation PR, as well. --- *Stale-detection implementation:* The file modification time is used to determine if a cache item should be pruned. This seems reasonable, given the use of [`touch` in the common trait](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/FilesystemCommonTrait.php#L90). Interestingly, though, the [`doFetch` method](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/FilesystemTrait.php#L38) uses the timestamp saved at the top of the file itself to determine the stale state. Should this latter implementation be used for `prune` as well (or is the current one ok), for example: ```php foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory, \FilesystemIterator::SKIP_DOTS), \RecursiveIteratorIterator::LEAVES_ONLY, \RecursiveIteratorIterator::CATCH_GET_CHILD) as $file) { if ($h = @fopen($file, 'rb')) { if ($time >= (int) $expiresAt = fgets($h)) { fclose($h); if (isset($expiresAt[0])) { $okay = (@Unlink($file) && !file_exists($file)) && $okay; } } } } ``` Commits ------- f0d0c5f add (filesystem|phpfiles) cache (adapter|simple) prune method and prune command
2 parents 68d9df6 + f0d0c5f commit 44d1162

22 files changed

+574
-5
lines changed

‎src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md‎

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@@ -20,6 +20,8 @@ CHANGELOG
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`Symfony\Component\Translation\DependencyInjection\TranslatorPass` instead
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* Added `command` attribute to the `console.command` tag which takes the command
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name as value, using it makes the command lazy
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* Added `cache:pool:prune` command to allow manual stale cache item pruning of supported PSR-6 and PSR-16 cache pool
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implementations
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3.3.0
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-----

‎src/Symfony/Bundle/FrameworkBundle/Command/CachePoolPruneCommand.php‎

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<?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\Cache\PruneableInterface;
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use Symfony\Component\Console\Command\Command;
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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\Style\SymfonyStyle;
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/**
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* Cache pool pruner command.
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*
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* @author Rob Frawley 2nd <rmf@src.run>
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*/
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final class CachePoolPruneCommand extends Command
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{
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private $pools;
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/**
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* @param iterable|PruneableInterface[] $pools
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*/
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public function __construct($pools)
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{
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parent::__construct();
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$this->pools = $pools;
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}
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/**
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* {@inheritdoc}
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*/
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protected function configure()
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{
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$this
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->setName('cache:pool:prune')
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->setDescription('Prune cache pools')
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->setHelp(<<<'EOF'
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The <info>%command.name%</info> command deletes all expired items from all pruneable pools.
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%command.full_name%
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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 $output)
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{
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$io = new SymfonyStyle($input, $output);
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foreach ($this->pools as $name => $pool) {
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$io->comment(sprintf('Pruning cache pool: <info>%s</info>', $name));
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$pool->prune();
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}
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$io->success('Successfully pruned cache pool(s).');
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}
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}

‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/CachePoolPrunerPass.php‎

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<?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\DependencyInjection\Compiler;
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use Symfony\Component\Cache\PruneableInterface;
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use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
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use Symfony\Component\DependencyInjection\Reference;
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/**
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* @author Rob Frawley 2nd <rmf@src.run>
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*/
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class CachePoolPrunerPass implements CompilerPassInterface
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{
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private $cacheCommandServiceId;
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private $cachePoolTag;
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public function __construct($cacheCommandServiceId = 'cache.command.pool_pruner', $cachePoolTag = 'cache.pool')
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{
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$this->cacheCommandServiceId = $cacheCommandServiceId;
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$this->cachePoolTag = $cachePoolTag;
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}
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/**
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* {@inheritdoc}
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*/
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public function process(ContainerBuilder $container)
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{
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if (!$container->hasDefinition($this->cacheCommandServiceId)) {
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return;
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}
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$services = array();
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foreach ($container->findTaggedServiceIds($this->cachePoolTag) as $id => $tags) {
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$class = $container->getParameterBag()->resolveValue($container->getDefinition($id)->getClass());
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if (!$reflection = $container->getReflectionClass($class)) {
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throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
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}
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if ($reflection->implementsInterface(PruneableInterface::class)) {
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$services[$id] = new Reference($id);
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}
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}
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$container->getDefinition($this->cacheCommandServiceId)->replaceArgument(0, new IteratorArgument($services));
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}
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}

‎src/Symfony/Bundle/FrameworkBundle/FrameworkBundle.php‎

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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\CacheCollectorPass;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\CachePoolPass;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\CachePoolClearerPass;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\CachePoolPrunerPass;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\DataCollectorTranslatorPass;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\TemplatingPass;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\ProfilerPass;
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$container->addCompilerPass(new CachePoolPass(), PassConfig::TYPE_BEFORE_OPTIMIZATION, 32);
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$this->addCompilerPassIfExists($container, ValidateWorkflowsPass::class);
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$container->addCompilerPass(new CachePoolClearerPass(), PassConfig::TYPE_AFTER_REMOVING);
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$container->addCompilerPass(new CachePoolPrunerPass(), PassConfig::TYPE_AFTER_REMOVING);
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$this->addCompilerPassIfExists($container, FormPass::class);
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if ($container->getParameter('kernel.debug')) {

‎src/Symfony/Bundle/FrameworkBundle/Resources/config/cache.xml‎

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</call>
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</service>
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<service id="cache.command.pool_pruner" class="Symfony\Bundle\FrameworkBundle\Command\CachePoolPruneCommand">
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<argument type="iterator" />
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<tag name="console.command" command="cache:pool:prune" />
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</service>
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<service id="cache.default_clearer" class="Symfony\Component\HttpKernel\CacheClearer\Psr6CacheClearer" public="true">
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<tag name="kernel.cache_clearer" />
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</service>

‎src/Symfony/Bundle/FrameworkBundle/Tests/Command/CachePruneCommandTest.php‎

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<?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\Tests\Command;
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use Symfony\Bundle\FrameworkBundle\Command\CachePoolPruneCommand;
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use Symfony\Bundle\FrameworkBundle\Console\Application;
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use Symfony\Bundle\FrameworkBundle\Tests\TestCase;
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use Symfony\Component\Cache\PruneableInterface;
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use Symfony\Component\Console\Tester\CommandTester;
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use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
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use Symfony\Component\HttpKernel\KernelInterface;
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class CachePruneCommandTest extends TestCase
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{
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public function testCommandWithPools()
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{
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$tester = $this->getCommandTester($this->getKernel(), $this->getRewindableGenerator());
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$tester->execute(array());
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}
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public function testCommandWithNoPools()
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{
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$tester = $this->getCommandTester($this->getKernel(), $this->getEmptyRewindableGenerator());
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$tester->execute(array());
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}
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/**
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* @return RewindableGenerator
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*/
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private function getRewindableGenerator()
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{
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return new RewindableGenerator(function () {
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yield 'foo_pool' => $this->getPruneableInterfaceMock();
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yield 'bar_pool' => $this->getPruneableInterfaceMock();
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}, 2);
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}
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/**
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* @return RewindableGenerator
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*/
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private function getEmptyRewindableGenerator()
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{
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return new RewindableGenerator(function () {
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return new \ArrayIterator(array());
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}, 0);
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}
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/**
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* @return \PHPUnit_Framework_MockObject_MockObject|KernelInterface
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*/
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private function getKernel()
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{
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$container = $this
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->getMockBuilder('Symfony\Component\DependencyInjection\ContainerInterface')
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->getMock();
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$kernel = $this
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->getMockBuilder(KernelInterface::class)
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->getMock();
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$kernel
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->expects($this->any())
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->method('getContainer')
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->willReturn($container);
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$kernel
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->expects($this->once())
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->method('getBundles')
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->willReturn(array());
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return $kernel;
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}
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/**
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* @return \PHPUnit_Framework_MockObject_MockObject|PruneableInterface
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*/
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private function getPruneableInterfaceMock()
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{
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$pruneable = $this
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->getMockBuilder(PruneableInterface::class)
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->getMock();
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$pruneable
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->expects($this->atLeastOnce())
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->method('prune');
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return $pruneable;
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}
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/**
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* @param KernelInterface $kernel
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* @param RewindableGenerator $generator
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*
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* @return CommandTester
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*/
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private function getCommandTester(KernelInterface $kernel, RewindableGenerator $generator)
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{
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$application = new Application($kernel);
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$application->add(new CachePoolPruneCommand($generator));
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return new CommandTester($application->find('cache:pool:prune'));
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}
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}

‎src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Compiler/CachePoolPrunerPassTest.php‎

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<?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\Tests\DependencyInjection\Compiler;
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use PHPUnit\Framework\TestCase;
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use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\CachePoolPrunerPass;
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use Symfony\Component\Cache\Adapter\FilesystemAdapter;
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use Symfony\Component\Cache\Adapter\PhpFilesAdapter;
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use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Reference;
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class CachePoolPrunerPassTest extends TestCase
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{
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public function testCompilerPassReplacesCommandArgument()
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{
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$container = new ContainerBuilder();
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$container->register('cache.command.pool_pruner')->addArgument(array());
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$container->register('pool.foo', FilesystemAdapter::class)->addTag('cache.pool');
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$container->register('pool.bar', PhpFilesAdapter::class)->addTag('cache.pool');
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$pass = new CachePoolPrunerPass();
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$pass->process($container);
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$expected = array(
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'pool.foo' => new Reference('pool.foo'),
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'pool.bar' => new Reference('pool.bar'),
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);
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$argument = $container->getDefinition('cache.command.pool_pruner')->getArgument(0);
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$this->assertInstanceOf(IteratorArgument::class, $argument);
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$this->assertEquals($expected, $argument->getValues());
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}
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public function testCompilePassIsIgnoredIfCommandDoesNotExist()
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{
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$container = $this
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->getMockBuilder(ContainerBuilder::class)
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->setMethods(array('hasDefinition', 'getDefinition', 'findTaggedServiceIds'))
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->getMock();
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$container
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->expects($this->atLeastOnce())
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->method('hasDefinition')
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->with('cache.command.pool_pruner')
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->will($this->returnValue(false));
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$container
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->expects($this->never())
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->method('getDefinition');
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$container
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->expects($this->never())
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->method('findTaggedServiceIds');
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$pass = new CachePoolPrunerPass();
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$pass->process($container);
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}
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/**
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* @expectedException \Symfony\Component\DependencyInjection\Exception\InvalidArgumentException
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* @expectedExceptionMessage Class "Symfony\Bundle\FrameworkBundle\Tests\DependencyInjection\Compiler\NotFound" used for service "pool.not-found" cannot be found.
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*/
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public function testCompilerPassThrowsOnInvalidDefinitionClass()
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{
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$container = new ContainerBuilder();
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$container->register('cache.command.pool_pruner')->addArgument(array());
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$container->register('pool.not-found', NotFound::class)->addTag('cache.pool');
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$pass = new CachePoolPrunerPass();
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$pass->process($container);
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}
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}

‎src/Symfony/Bundle/FrameworkBundle/composer.json‎

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"require": {
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"php": ">=5.5.9",
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"ext-xml": "*",
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"symfony/cache": "~3.3|~4.0",
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"symfony/cache": "~3.4|~4.0",
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"symfony/class-loader": "~3.2",
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"symfony/dependency-injection": "~3.3|~4.0",
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"symfony/config": "~3.3|~4.0",

‎src/Symfony/Component/Cache/Adapter/FilesystemAdapter.php‎

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namespace Symfony\Component\Cache\Adapter;
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use Symfony\Component\Cache\PruneableInterface;
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use Symfony\Component\Cache\Traits\FilesystemTrait;
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class FilesystemAdapter extends AbstractAdapter
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class FilesystemAdapter extends AbstractAdapter implements PruneableInterface
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{
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use FilesystemTrait;
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‎src/Symfony/Component/Cache/Adapter/PhpFilesAdapter.php‎

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namespace Symfony\Component\Cache\Adapter;
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use Symfony\Component\Cache\Exception\CacheException;
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use Symfony\Component\Cache\PruneableInterface;
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use Symfony\Component\Cache\Traits\PhpFilesTrait;
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class PhpFilesAdapter extends AbstractAdapter
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class PhpFilesAdapter extends AbstractAdapter implements PruneableInterface
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{
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use PhpFilesTrait;
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