# File lib/travis/cli/sync.rb, line 12
      def run
        authenticate

        if check?
          say "#{"not " unless user.syncing?}syncing", "#{user.login} is currently %s"
        elsif user.syncing? and not force?
          error "user is already syncing"
        elsif background?
          say "starting synchronization"
          sync(false)
        else
          say "synchronizing: "
          sync
          say color(" done", :success)
        end
      end