/**
* Gets all the files needed for the provided CSS file. This will extract the imports from the CSS.
* @param zibo\core\Zibo $zibo Instance of Zibo
* @param zibo\library\filesystem\File $file CSS source file
* @return array Array with the path of the file as key and the File object as value
*/
private function getFilesFromStyle(Zibo $zibo, File $file)
{
$source = $file->read();
$source = preg_replace(CSSMin::REGEX_COMMENT, '', $source);
$files = array();
$parent = $file->getParent();
$lines = explode("\n", $source);
foreach ($lines as $line) {
$line = trim($line);
if (empty($line)) {
continue;
}
if (!preg_match(CSSMin::REGEX_IMPORT, $line)) {
break;
}
$importFileName = $this->getFileNameFromImportLine($line);
$importFile = $zibo->getRelativeFile(new File($parent, $importFileName));
$importFile = $zibo->getFile($importFile);
if (!$importFile) {
continue;
}
$styleFiles = $this->getFilesFromStyle($zibo, $importFile);
$files = Structure::merge($files, $styleFiles);
}
$files[$file->getPath()] = $file;
return $files;
}
