getPassword method

Implementation

String getPassword(final String userName)
{
  String? password;
  final askPassword = globalResults?.flag('password');
  if (askPassword == true) {
    stdout.write('Password for the user $userName: ');
    stdin.echoMode = false;
    while (password == null) {
      password = stdin.readLineSync();
    }
    stdin.echoMode = true;
  } else {
    password = '';
  }
  return password;
}