sanitizedChildDirectory method

Implementation

Directory sanitizedChildDirectory(String basename) {
  final segments = p.absolute(path, p.normalize(basename)).split(p.separator)
    ..removeWhere((element) => element == '..');

  final relative = p.relative(
    '${p.separator}${p.joinAll(segments)}',
    from: path,
  );

  return childDirectory(relative);
}