Capistrano task to notify Ratchet.io about deployment

deploy.rb

# I am trying out Ratchet.io and I want to add their deployment notification to my
# normal capistrano deployment process. Here is my first working attempt.

# Add this task to your deploy.rb
task :notify_ratchetio, :roles => :app do
  set :revision, `git log -n 1 --pretty=format:"%H"`
  set :local_user, `whoami`
  set :ratchetio_token, YOUR_ACCESS_TOKEN
  rails_env = fetch(:rails_env, "production")
  run "curl https://submit.ratchet.io/api/1/deploy/ -F access_token=#{ratchetio_token} -F environment=#{rails_env} -F revision=#{revision} -F local_username=#{local_user}", :once => true
end

# Then add this task to your deployment flow, i.e.
after :deploy, 'notify_ratchetio'