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<?php |
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namespace Metadata\Cache; |
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use Metadata\ClassMetadata; |
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class FileCache implements CacheInterface |
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{ |
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private $dir; |
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public function __construct(string $dir) |
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{ |
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if (!is_dir($dir)) { |
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throw new \InvalidArgumentException(sprintf('The directory "%s" does not exist.', $dir)); |
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} |
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if (!is_writable($dir)) { |
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throw new \InvalidArgumentException(sprintf('The directory "%s" is not writable.', $dir)); |
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} |
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$this->dir = rtrim($dir, '\\/'); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function load(string $class): ?ClassMetadata |
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{ |
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$path = $this->dir . '/' . strtr($class, '\\', '-') . '.cache.php'; |
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if (!file_exists($path)) { |
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return null; |
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} |
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return include $path; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function put(ClassMetadata $metadata): void |
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{ |
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$path = $this->dir . '/' . strtr($metadata->name, '\\', '-') . '.cache.php'; |
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$tmpFile = tempnam($this->dir, 'metadata-cache'); |
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file_put_contents($tmpFile, '<?php return unserialize(' . var_export(serialize($metadata), true) . ');'); |
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// Let's not break filesystems which do not support chmod. |
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@chmod($tmpFile, 0666 & ~umask()); |
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$this->renameFile($tmpFile, $path); |
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} |
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/** |
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* Renames a file with fallback for windows |
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* |
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* @param string $source |
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* @param string $target |
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*/ |
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private function renameFile($source, $target) |
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{ |
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if (false === @rename($source, $target)) { |
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if (defined('PHP_WINDOWS_VERSION_BUILD')) { |
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if (false === copy($source, $target)) { |
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throw new \RuntimeException(sprintf('(WIN) Could not write new cache file to %s.', $target)); |
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} |
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if (false === unlink($source)) { |
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throw new \RuntimeException(sprintf('(WIN) Could not delete temp cache file to %s.', $source)); |
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} |
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} else { |
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throw new \RuntimeException(sprintf('Could not write new cache file to %s.', $target)); |
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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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public function evict(string $class): void |
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{ |
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$path = $this->dir . '/' . strtr($class, '\\', '-') . '.cache.php'; |
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if (file_exists($path)) { |
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unlink($path); |
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} |
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} |
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} |
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schmittjoh /
metadata
If you suppress an error, we recommend checking for the error condition explicitly: