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<?php |
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|
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/* |
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* This file is part of Twig. |
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* |
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* (c) Fabien Potencier |
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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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|
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namespace Twig\Cache; |
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|
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/** |
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* Implements a cache on the filesystem. |
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* |
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* @author Andrew Tch <andrew@noop.lv> |
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*/ |
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class FilesystemCache implements CacheInterface |
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{ |
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public const FORCE_BYTECODE_INVALIDATION = 1; |
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|
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private $directory; |
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private $options; |
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|
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public function __construct(string $directory, int $options = 0) |
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{ |
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$this->directory = rtrim($directory, '\/').'/'; |
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$this->options = $options; |
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} |
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|
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public function generateKey(string $name, string $className): string |
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{ |
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$hash = hash('sha256', $className); |
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|
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return $this->directory.$hash[0].$hash[1].'/'.$hash.'.php'; |
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} |
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|
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public function load(string $key): void |
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{ |
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if (is_file($key)) { |
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@include_once $key; |
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} |
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} |
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|
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public function write(string $key, string $content): void |
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{ |
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$dir = \dirname($key); |
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if (!is_dir($dir)) { |
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if (false === @mkdir($dir, 0777, true)) { |
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clearstatcache(true, $dir); |
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if (!is_dir($dir)) { |
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throw new \RuntimeException(sprintf('Unable to create the cache directory (%s).', $dir)); |
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} |
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} |
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} elseif (!is_writable($dir)) { |
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throw new \RuntimeException(sprintf('Unable to write in the cache directory (%s).', $dir)); |
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} |
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|
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$tmpFile = tempnam($dir, basename($key)); |
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if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $key)) { |
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@chmod($key, 0666 & ~umask()); |
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|
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if (self::FORCE_BYTECODE_INVALIDATION == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) { |
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// Compile cached file into bytecode cache |
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if (\function_exists('opcache_invalidate') && filter_var(ini_get('opcache.enable'), \FILTER_VALIDATE_BOOLEAN)) { |
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@opcache_invalidate($key, true); |
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} elseif (\function_exists('apc_compile_file')) { |
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apc_compile_file($key); |
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} |
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} |
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|
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return; |
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} |
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|
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throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $key)); |
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} |
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|
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public function getTimestamp(string $key): int |
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{ |
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if (!is_file($key)) { |
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return 0; |
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} |
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|
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return (int) @filemtime($key); |
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} |
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} |
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|
