ruby - 如何将 Thor::Group 注册为带参数的子命令

Question

这道题开始于here .但随着我对雷神的了解越来越多，情况发生了很大变化。

我正在尝试创建一个带参数的 Thor::Group 子命令。奇怪的是，如果没有参数，它就可以工作。

我可以使用 Thor::Group 作为子命令吗？

这在我输入时有效:foo counter

foo/bin/foo

module Foo
  class CLI < Thor
    register(Counter, 'counter', 'counter', 'Count up from the 1.')
  end

  class Counter < Thor::Group
    desc "Prints 1 2"

    def one
      puts 1
    end

    def two
      puts 2
    end

  end

end

Foo::CLI.start

但是当我输入时这不起作用:foo counter 5

module Foo
  class CLI < Thor
    register(Counter, 'counter', 'counter <number>', 'Count up from the input.')
  end

  class Counter < Thor::Group
    argument :number, :type => :numeric, :desc => "The number to start counting"
    desc "Prints 2 numbers based on input"

    def one
      puts number + 0
    end

    def two
      puts number + 1
    end

  end


end

Foo::CLI.start

它回复:计数器调用不正确。作为 foo 计数器编号调用

Answer 1

我有一个解决方案。我没有使用 Thor::Group，而是使用了调用

bin/foo 看起来像这样:

#!/usr/bin/env ruby

require 'foo'

Foo::CLI.start

lib/cli.rb - 将“生成”注册为基本命令 foo 的子任务:

module Foo
  class CLI < Thor
    register(Generate, 'generate', 'generate [something]', 'Type foo generate for more help.')
  end
end

lib/generate.rb 看起来像这样:

module Foo

  class Generate < Thor

    desc "project [name]", "Prints the project making step"
    def project(name)
      puts "making first project file #{name}"
      invoke :config
      invoke :project_sub
    end

    desc "config [name]", "Prints the config making step"
    def config(name)
      puts "making first config file #{name}"
      invoke :project_sub
    end

    desc "project_sub [name]", "Prints the project_sub making step"
    def project_sub(name)
      puts "making subsystem file #{name}"
    end

    def self.banner(task, namespace = false, subcommand = true)
       task.formatted_usage(self, true, subcommand).split(':').join(' ')
    end

  end

end

现在我可以输入:foo generate project fred

它会输出:

> making first project file fred
> making first config file fred
> making subsystem file fred

注意横幅覆盖。这意味着输入:foo generate project with invalid or missing args 将给出正确的帮助信息:

"project" was called incorrectly. Call as "foo generate project [name]".

相对于

"project" was called incorrectly. Call as "foo project [name]".