/**
* Returns a key that may represent a relative path
* relative to $this->path as an absolute path
* @param boolean $ensure_exists throw exception if final path does not exist
* @return string
*/
public function getAsAbsolutePath($key, $ensure_exists = true)
{
$path = $this->get($key);
if (!$path) {
throw new \Exception("Configuration key `{$key}` not found in `{$this->path}`.");
}
if (!FS::isAbsolutePath($path)) {
$path = realpath(FS::join(dirname($this->path), $path));
}
if ($ensure_exists && !file_exists($path)) {
throw new \Exception("File or folder `{$path}` doesn't exist!");
}
return $path;
}
