/**
* Transform content and/or content type for the specified preprocessing chain object
*
* @param PreProcessor\Chain $chain
* @return void
*/
public function process(PreProcessor\Chain $chain)
{
if ($this->minification->isEnabled(pathinfo($chain->getTargetAssetPath(), PATHINFO_EXTENSION)) && $this->minification->isMinifiedFilename($chain->getTargetAssetPath()) && !$this->minification->isMinifiedFilename($chain->getOrigAssetPath())) {
$content = $this->adapter->minify($chain->getContent());
$chain->setContent($content);
}
}
/**
* Get path to minified file for specified original file
*
* @param string $originalFile path to original file relative to pub/view_cache
* @param string $targetFile path relative to pub/view_cache
* @return void
*/
public function minifyFile($originalFile, $targetFile)
{
if ($this->_isUpdateNeeded($targetFile)) {
$content = $this->rootDirectory->readFile($originalFile);
$content = $this->adapter->minify($content);
$this->pubViewCacheDir->writeFile($targetFile, $content);
}
}
/**
* Perform actual minification
*
* @return void
*/
protected function minify()
{
$isExists = $this->staticViewDir->isExist($this->path);
if (!$isExists) {
$shouldMinify = true;
} elseif ($this->strategy == self::FILE_EXISTS) {
$shouldMinify = false;
} else {
$origlFile = $this->rootDir->getRelativePath($this->originalAsset->getSourceFile());
$origMtime = $this->rootDir->stat($origlFile)['mtime'];
$minMtime = $this->staticViewDir->stat($this->path)['mtime'];
$shouldMinify = $origMtime != $minMtime;
}
if ($shouldMinify) {
$content = $this->adapter->minify($this->originalAsset->getContent());
$this->staticViewDir->writeFile($this->path, $content);
}
}
/**
* @return string
*/
public function getMinResolverCode()
{
$excludes = [];
foreach ($this->minification->getExcludes('js') as $expression) {
$excludes[] = '!url.match(/' . str_replace('/', '\\/', $expression) . '/)';
}
$excludesCode = empty($excludes) ? 'true' : implode('&&', $excludes);
$result = <<<code
if (!require.s.contexts._.__load) {
require.s.contexts._.__load = require.s.contexts._.load;
require.s.contexts._.load = function(id, url) {
if ({$excludesCode}) {
url = url.replace(/(\\.min)?\\.js\$/, '.min.js');
}
return require.s.contexts._.__load.apply(require.s.contexts._, [id, url]);
}
}
code;
if ($this->minification->isEnabled('js')) {
$result = $this->minifyAdapter->minify($result);
}
return $result;
}