Stream list()

in lib/src/list_tree.dart [182:198]

• 13 lines of code
• 4 McCabe index (conditional complexity)

  Stream<FileSystemEntity> list({String? root, bool followLinks = true}) {
    root ??= '.';
    var group = StreamGroup<FileSystemEntity>();
    for (var rootDir in _trees.keys) {
      var dir = rootDir == '.' ? root : rootDir;
      group.add(
          _trees[rootDir]!.list(dir, _fileSystem, followLinks: followLinks));
    }
    group.close();

    if (!_canOverlap) return group.stream;

    // TODO: Rather than filtering here, avoid double-listing directories
    // in the first place.
    var seen = <String>{};
    return group.stream.where((entity) => seen.add(entity.path));
  }