/**
* Recursively process asset
* @param array $dependencies Collection of assets for compilation
*/
protected function processAsset($dependencies)
{
foreach ($dependencies as $source => $nothing) {
// Read asset content
$content = $this->fileManager->read($source);
$extension = pathinfo($source, PATHINFO_EXTENSION);
// Resource dependant resources
$innerDependencies = [];
// Compile content
$compiled = $content;
Event::fire(self::E_COMPILE, [$source, &$extension, &$compiled, &$innerDependencies]);
// Write compiled asset
$target = $this->getAssetProcessedPath($source);
$this->fileManager->write($target, $compiled);
$this->fileManager->touch($target, $this->fileManager->lastModified($source));
// Go deeper in recursion
$this->processAsset($innerDependencies);
}
}
/**
* Recursively replace import in content of the LESS file
*
* @param string $resource Resource full path
* @param string $content less file content
*
* @return string Content of LESS file with included imported resources
* @throws ResourceNotFound If importing resource could not be found
*/
protected function readImport($resource, $content)
{
// Rewrite imports
$matches = [];
if (preg_match_all(self::P_IMPORT_DECLARATION, $content, $matches)) {
for ($i = 0, $size = count($matches[0]); $i < $size; $i++) {
// Build absolute path to imported resource
$path = dirname($resource) . DIRECTORY_SEPARATOR . $matches['path'][$i];
// Append .less extension according to standard
if (false === ($path = realpath($this->fileManager->exists($path) ? $path : $path . '.less'))) {
throw new ResourceNotFound('Cannot import file: ' . $matches['path'][$i]);
}
// Add parent to child dependency
$this->dependencies[$path][$resource] = [];
// Replace path in LESS @import command with recursive call to this function
$content = str_replace($matches[0][$i], $this->readImport($path, $this->fileManager->read($path)), $content);
}
}
return $content;
}
