gistfile1.rb

      def thor_task(klass, task_name, &block)
        if program.nil?
          warn "WARNING: no program is associated with #{class_name.upcase} task, does not make sense to create a thor task."
          return nil
        end          
        if klass
          wrapper = self   
          klass.class_eval do            
            wrapper.options.each_pair do |name, opt|
              method_option name, opt
            end #each_pair
            # Thor's behavior should be respected passing attributes
            define_method task_name do |*args|
              #it's mandatory that the first and second parameter are respectively wrapper and task
              raise ArgumentError, "wrong number of arguments (#{args.size} for #{block.parameters.size-2})" if args.size != block.parameters.size-2
              yield wrapper, self, *args
            end
          end#class_eval
        end #klass
      end #thor_task