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<?php |
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namespace Application\Bundle\DefaultBundle\Twig; |
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/** |
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* Class AssetVersionExtension. |
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* |
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* @author Timur Bolotiukh <[email protected]> |
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*/ |
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class AssetVersionExtension extends \Twig_Extension |
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{ |
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/** @var string */ |
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private $webRoot; |
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/** @var string */ |
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private $environment; |
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const REV_MANIFEST_FILE = 'rev-manifest.json'; |
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/** |
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* AssetVersionExtension constructor. |
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* |
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* @param string $rootDir |
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* @param string $environment |
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*/ |
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public function __construct($rootDir, $environment) |
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{ |
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$this->webRoot = realpath($rootDir.'/../web'); |
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$this->environment = $environment; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getFilters() |
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{ |
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return array( |
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new \Twig_SimpleFilter('app_asset_version', array($this, 'getAssetVersion')), |
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); |
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} |
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/** |
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* @param string $asset |
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* |
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* @return string |
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* |
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* @throws \Exception |
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*/ |
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public function getAssetVersion($asset) |
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{ |
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if ('test' === $this->environment) { |
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return $asset; |
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} |
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$path = pathinfo($this->webRoot.DIRECTORY_SEPARATOR.$asset); |
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$manifestFile = $path['dirname'].DIRECTORY_SEPARATOR.self::REV_MANIFEST_FILE; |
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if (!file_exists($manifestFile)) { |
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throw new \Exception(sprintf('Cannot find manifest file: "%s"', $manifestFile)); |
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} |
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$manifestPaths = json_decode(file_get_contents($manifestFile), true); |
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if (!isset($manifestPaths[$path['basename']])) { |
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throw new \Exception(sprintf('There is no file "%s" in the version manifest!', $path['basename'])); |
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} |
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return pathinfo($asset)['dirname'].DIRECTORY_SEPARATOR.$manifestPaths[$path['basename']]; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return 'app_asset_version'; |
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} |
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} |
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stfalcon /
fwdays
