Thorでサブコマンドを定義する

$ ./foo bar baz qux
qux

require 'thor'
require 'thor/group'

class Baz < Thor
  namespace 'bar baz'

  desc 'qux', 'qux!!!'
  def qux
    puts 'qux'
  end

  def self.banner(task, namespace = false, subcommand = true)
    super
  end
end

class Bar < Thor
  namespace :bar
  register(Baz, 'baz', 'baz [COMMAND]', 'subcommad for baz')

  def self.banner(task, namespace = false, subcommand = true)
    super
  end
end

class Foo < Thor
  register(Bar, 'bar', 'bar [COMMAND]', 'commands for bar')
end
Foo.start