class Puma::Cluster

def start_phased_restart
  @events.fire_on_restart!
  @phase += 1
  log "- Starting phased worker restart, phase: #{@phase}"
  # Be sure to change the directory again before loading
  # the app. This way we can pick up new code.
  dir = @launcher.restart_dir
  log "+ Changing to #{dir}"
  Dir.chdir dir
end