dmitriy-kiriyenko/soprano

Capistrano::Configuration.instance(:must_exist).load do
  def unicorn_conf
    fetch(:unicorn_conf, "#{current_path}/config/unicorn.rb")
  end

  def unicorn_bin
    fetch(:unicorn_bin, 'bundle exec unicorn')
  end

  def unicorn_pid
    fetch(:unicorn_pid, "#{deploy_to}/shared/pids/unicorn.pid")
  end

  def restart_signal
    fetch(:restart_signal, 'USR2')
  end

  def kill_signal
    fetch(:kill_signal, 'QUIT')
  end

  namespace :deploy do
    desc "Start application."
    task :start, :roles => :app do
      run "cd #{current_path} && #{unicorn_bin} -c #{unicorn_conf} -E #{rails_env} -D"
    end

    desc "Stop application."
    task :stop, :roles => :app do
      run "if [ -f #{unicorn_pid} ] && [ -e /proc/$(cat #{unicorn_pid}) ]; then kill -#{kill_signal} `cat #{unicorn_pid}`; fi"
    end

    desc "Restart application."
    task :restart, :roles => :app do
      run "if [ -f #{unicorn_pid} ] && [ -e /proc/$(cat #{unicorn_pid}) ]; then kill -#{restart_signal} `cat #{unicorn_pid}`; else cd #{current_path} && #{unicorn_bin} -c #{unicorn_conf} -E #{rails_env} -D; fi"
    end
  end

end