public function setDefaultBootstrapFiles($startDirectory = null)
{
foreach (self::getSubDirectoryPath($startDirectory ?: $this->getDirectory()) as $directory) {
$defaultBootstrapFile = $directory . static::defaultBootstrapFile;
if ($this->adapter->is_file($defaultBootstrapFile) === true) {
$this->setBootstrapFile($defaultBootstrapFile);
break;
}
}
return $this;
}