} else if (child.isDirectory()) {
                visit(names, prefix + child.getName() + "/", child, ignoreDirs);
            }
        }
    }

    public boolean isSelfOrDescendant(File file) {
        if (file.getAbsolutePath().equals(getAbsolutePath())) {
            return true;
        }
        return isDescendant(file);
    }

    public boolean isDescendant(File file) {