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<?php |
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namespace JK\Sam\Filter\Minify; |
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use Exception; |
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use JK\Sam\Filter\Filter; |
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use MatthiasMullie\Minify\CSS; |
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use MatthiasMullie\Minify\JS; |
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use SplFileInfo; |
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class MinifyFilter extends Filter |
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{ |
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/** |
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* @param SplFileInfo[] $sources |
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* @param SplFileInfo[] $destinations |
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* @return SplFileInfo[] |
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*/ |
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public function run(array $sources, array $destinations) |
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{ |
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$cssMinifier = new CSS(); |
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$jsMinifier = new JS(); |
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$hasJs = false; |
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$hasCss = false; |
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// add source files to the minifier |
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foreach ($sources as $source) { |
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if ($source->getExtension() == 'js') { |
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$this->addNotification('Add '.$source.' to js minification'); |
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$jsMinifier->add($source); |
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$hasJs = true; |
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} |
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if ($source->getExtension() == 'css') { |
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$this->addNotification('add '.$source.' to css minification'); |
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$cssMinifier->add($source); |
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$hasCss = true; |
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} |
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} |
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$cssMinPath = $this->getCacheDir().'minified.css'; |
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$jsMinPath = $this->getCacheDir().'minified.js'; |
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$updatedSources = []; |
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// js minification if required |
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if ($hasJs) { |
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$this->addNotification($jsMinPath.' js minification'); |
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$jsMinifier->minify($jsMinPath); |
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$updatedSources[] = $jsMinPath; |
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} |
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// css minification if required |
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if ($hasCss) { |
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$this->addNotification($cssMinPath.' css minification'); |
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// avoid css rewriting by not passing an argument to the minify() method and dump the content into the file |
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// ourselves |
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$content = $cssMinifier->minify(); |
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file_put_contents($cssMinPath, $content); |
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$updatedSources[] = $cssMinPath; |
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} |
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return $updatedSources; |
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} |
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/** |
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* @throws Exception |
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*/ |
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public function checkRequirements() |
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{ |
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if (!class_exists('MatthiasMullie\Minify\CSS')) { |
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throw new Exception( |
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'MatthiasMullie\Minify\CSS should exists. '. |
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'Install the MatthiasMullie\Minify library (composer require matthiasmullie/minify)' |
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); |
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} |
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} |
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/** |
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* Return the file extensions supported by this filter. |
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* |
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* @return string[] |
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*/ |
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public function getSupportedExtensions() |
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{ |
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return [ |
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'css', |
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'js', |
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]; |
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} |
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} |
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johnkrovitch /
Sam
