class Thor::Group

def get_options_from_invocations(group_options, base_options) #:nodoc:
  invocations.each do |name, from_option|
    value = if from_option
      option = class_options[name]
      option.type == :boolean ? name : option.default
    else
      name
    end
    next unless value
    klass, _ = prepare_for_invocation(name, value)
    next unless klass && klass.respond_to?(:class_options)
    value = value.to_s
    human_name = value.respond_to?(:classify) ? value.classify : value
    group_options[human_name] ||= []
    group_options[human_name] += klass.class_options.values.select do |class_option|
      base_options[class_option.name.to_sym].nil? && class_option.group.nil? &&
      !group_options.values.flatten.any? { |i| i.name == class_option.name }
    end
    yield klass if block_given?
  end
end