protected function getWpRootFolder()
{
if (empty($this->wpRootFolder)) {
// allow me not to bother with traling slashes
$wpRootFolder = Utils::untrailslashit($this->config['wpRootFolder']) . DIRECTORY_SEPARATOR;
// maybe the user is using the `~` symbol for home?
$this->wpRootFolder = Utils::homeify($wpRootFolder);
}
return $this->wpRootFolder;
}