Ruby 如何让Thor显示选项？

这是我的Ruby代码：

require 'thor'
require 'thor/group'

module CLI

    class Greet < Thor
        desc 'hi', 'Say hi!'
        method_option :name, :type => :string, :description => 'Name to greet', :default => 'there'
        def hi
            puts "Hi, #{options[:name]}!"
        end

        desc 'bye', 'say bye!'
        def bye
            puts "Bye!"
        end
    end


    class Root < Thor
        register CLI::Greet, 'greet', 'greet [COMMAND]', 'Greet with a command'
    end
end


CLI::Root.start

我怎么才能让它看起来像这样

C:\temp>ruby greet.rb help greet
Usage:
  greet.rb greet [COMMAND]
    --name Name to greet

Greet with a command

---

你有两件事要做。首先，您将--name分配给了一个方法，而不是整个

CLI:：Greet

类。因此，如果使用该命令：

ruby greet.rb greet help hi

你得到

Usage:
  greet.rb hi

Options:
  [--name=NAME]  
                 # Default: there

Say hi!

是的，这是错误的——它在帮助中没有子命令。在托尔有一份申请。但是，它正确地显示了方法选项

然而，看起来您正在寻找的是一个类方法。这是为整个

CLI:：Greet

类定义的方法，而不仅仅是为

#hi

方法定义的方法

你应该这样做：

require 'thor'
require 'thor/group'

module CLI

    class Greet < Thor
        desc 'hi', 'Say hi!'
        class_option :number, :type => :string, :description => 'Number to call', :default => '555-1212'
        method_option :name, :type => :string, :description => 'Name to greet', :default => 'there'
        def hi
            puts "Hi, #{options[:name]}! Call me at #{options[:number]}"
        end

        desc 'bye', 'say bye!'
        def bye
            puts "Bye! Call me at #{options[:number]}"
        end
    end

    class Root < Thor
        register CLI::Greet, 'greet', 'greet [COMMAND]', 'Greet with a command'        
        tasks["greet"].options = CLI::Greet.class_options
    end
end

CLI::Root.start

注意这里仍然需要一个技巧：在

CLI:：Root

中的

tasks[“greet”].options=CLI:：greet.class_options

行。在托尔也有这样的档案

require 'thor'
require 'thor/group'

module CLI

    class Greet < Thor
        desc 'hi', 'Say hi!'
        class_option :number, :type => :string, :description => 'Number to call', :default => '555-1212'
        method_option :name, :type => :string, :description => 'Name to greet', :default => 'there'
        def hi
            puts "Hi, #{options[:name]}! Call me at #{options[:number]}"
        end

        desc 'bye', 'say bye!'
        def bye
            puts "Bye! Call me at #{options[:number]}"
        end
    end

    class Root < Thor
        register CLI::Greet, 'greet', 'greet [COMMAND]', 'Greet with a command'        
        tasks["greet"].options = CLI::Greet.class_options
    end
end

CLI::Root.start

Usage:
  greet.rb greet [COMMAND]

Options:
  [--number=NUMBER]  
                     # Default: 555-1212

Greet with a command