/**
* @param string[] $dirs
* @param string $fileMatch
* @param string|null $cacheDir
*
* @return array
* @throws RuntimeException
*/
protected function parseFiles(array $dirs, $fileMatch, $cacheDir = null)
{
$files = $this->filesystem->getFilesOfDirs($dirs, $fileMatch);
$results = [];
$tmpFile = $cacheDir !== null ? $cacheDir . '/' . $this->getCacheFile() : null;
$oldCache = [];
if ($tmpFile !== null && file_exists($tmpFile)) {
$oldCache = unserialize(file_get_contents($tmpFile));
}
foreach ($files as $file) {
$realPath = $file->getRealPath();
if (!$realPath) {
return [];
}
$hash = $this->filesystem->getFileHash($realPath);
if (isset($oldCache[$hash])) {
$fileResult = $this->fromCache($oldCache[$hash], $file);
unset($oldCache[$hash]);
} else {
$fileResult = $this->parseFile($realPath);
}
$results[$hash] = $fileResult;
}
if ($tmpFile !== null) {
$this->filesystem->writeFile($tmpFile, serialize($results));
}
return $results;
}
