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<?php |
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namespace allejo\stakx\AssetEngine\Sass; |
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use allejo\stakx\RuntimeStatus; |
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use allejo\stakx\Service; |
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use Leafo\ScssPhp\Compiler as BaseCompiler; |
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/** |
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* A modified version of our Sass compiler. |
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*/ |
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class Compiler extends BaseCompiler |
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{ |
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/** |
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* @var int |
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*/ |
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protected $lastTouched; |
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/** |
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* Overridden method for handling Sass import statements. |
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* |
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* Our compiler will need to be able to refresh the Sass output if an import |
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* has changed since it was cached. This is used solely for the purpose of |
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* supporting our built-in dev server so that it can recompile Sass with the |
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* latest changes made in imports. |
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* |
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* @param string $path |
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* @param array $out |
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*/ |
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protected function importFile($path, $out) |
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{ |
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if (!Service::hasRunTimeFlag(RuntimeStatus::IN_SERVE_MODE)) |
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{ |
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parent::importFile($path, $out); |
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return; |
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} |
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$realPath = realpath($path); |
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// If we've compiled our Sass once already, then the last modified time |
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// will exist in our listing. At this point, we already have Sass trees |
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// cached, so we should only clear the outdated ones. |
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if (isset($this->lastTouched[$realPath])) |
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{ |
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// If the imported file has been modified since our last |
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// compilation, then we will need to clear the cached tree to allow |
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// our engine to build a new tree. |
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if (($t = filemtime($realPath)) > $this->lastTouched[$realPath]) |
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{ |
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$this->clearImportCache($realPath); |
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$this->lastTouched[$realPath] = $t; |
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} |
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} |
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else |
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{ |
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$this->lastTouched[$realPath] = filemtime($realPath); |
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} |
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parent::importFile($path, $out); |
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} |
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/** |
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* Remove an import from the Sass cache. |
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* |
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* @param string|null $file The absolute path to an imported file that will |
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* be cleared from the cache. When given null, the |
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* entire cache will be cleared. |
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*/ |
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public function clearImportCache($file = null) |
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{ |
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if ($file === null) { |
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$this->importCache = []; |
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return; |
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} |
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unset($this->importCache[$file]); |
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} |
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} |
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stakx-io /
stakx
