plugin.rb

# Here we define plugins for the bot. This is different from commands.

module Plugin
  attr_accessor :match, :classes

  def self.included(base)
    @classes = [] || @classes
    @classes << base.name
  end

  def match str
    @match = str
  end

  def self.classes
    @classes
  end
end

class Hello
  include Plugin

  match '/hello'
end