namespace :unicorn do
  desc "Terminate unicorn processes (blocks until complete)"
  task :terminate do
    on roles(:app) do
      n = 0
      while n < 10 && !capture("pgrep -f unicorn").blank?
        execute "pgrep -f unicorn | xargs -SIGTERM"
        n += 1
      end

      if n == 10
        execute "pgrep -f unicorn | xargs -SIGKILL"
      end
    end
  end
end