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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\HttpKernel\CacheWarmer;
  13  
  14  /**
  15   * Abstract cache warmer that knows how to write a file to the cache.
  16   *
  17   * @author Fabien Potencier <fabien@symfony.com>
  18   */
  19  abstract class CacheWarmer implements CacheWarmerInterface
  20  {
  21      protected function writeCacheFile($file, $content)
  22      {
  23          $tmpFile = tempnam(dirname($file), basename($file));
  24          if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $file)) {
  25              @chmod($file, 0666 & ~umask());
  26  
  27              return;
  28          }
  29  
  30          throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $file));
  31      }
  32  }