task to start rspec before deploy

staging.rb

 desc 'Start rspec before deploy'
  task :rspec, :roles => :app do
    puts 'Starting rspec examples ... prepare to be punished!'
    output = %x[bundle exec rspec]
    respond = output.split(/\n/)
    if respond.any? { |e| e.match(/Failures:/)}
      set(:confirmed) do
        puts "\n\t#{'='*75}\n\n\tThere are errors:\n\n\t>>> #{respond.detect { |e| e.match(/.*failure.*/) }.upcase}\n\n\t#{'='*75}\n"
        Capistrano::CLI.ui.ask("\n\tAre you sure you want to continue? (Y) ") == 'Y' ? true : false
      end

      unless fetch(:confirmed)
        puts "\nDeploy canceled!"
        exit
      end
    else
      puts 'All tests are done! Lets rock baby!'
    end
  end