api.rb

require 'yaml'
require 'hipchat'

module Robut::API
  def initialize
    @config = YAML.load_file('hal9000.yml')
    @token = @config['hipchat_token']
    @room = @config['hipchat_room_id']
    @client = HipChat::Client.new(@token, :api_version => 'v2')
  end

  def info(msg)
    @client[@room].send('HAL 9000', msg, :color => 'green', :notify => true)
  end

  def warning(msg)
    @client[@room].send('HAL 9000', msg, :color => 'yellow', :notify => true)
  end

  def error(msg)
    @client[@room].send('HAL 9000', msg, :color => 'red', :notify => true)
  end
end

workflow.rb

class Robut::Plugin::WorkFlow
  include Robut::API
  include Robut::Plugin

  desc 'Terraform workflow'
  def usage
    'migrate stack source destination'
  end

  def handle(time, sender_nick, message)
    if message =~ /^migrate/
      info('info')
    end
  end
end