Alert Campfire of a Capistrano deploy

campfire.rb

require 'httparty'
require 'json'
 
class Campfire
  include HTTParty
 
  base_uri 'http://your_domain.campfirenow.com'
  basic_auth 'your_auth_token', 'whatever'
  headers "Content-Type" => "application/json"
 
  def self.notify(body)
    post('/room/1/speak.json', :body => { :message => { :body => body }}.to_json)
  end
end

notify.rb

require File.expand_path('../campfire', __FILE__)

namespace :notify do
  desc 'Alert Campfire of a deploy'
  task :campfire do
    branch_name = branch.split('/', 2).last
    deployer = ENV["USER"]
    deployed = capture("cd #{previous_release} && git rev-parse HEAD")[0,7]
    deploying = capture("cd #{current_release} && git rev-parse HEAD")[0,7]
    compare_url = "#{source_repo_url}/compare/#{deployed}...#{deploying}"

    Campfire.notify(
      "#{deployer} deployed " +
      "#{branch_name} (#{deployed}..#{deploying}) to #{rails_env} " +
      "with `cap #{ARGV.join(' ')}` (#{compare_url})"
    )
  end
end

after "deploy:symlink", "notify:campfire"