capistrano/capistrano

desc "Execute remote commands"
task :console do
  stage = fetch(:stage)
  puts I18n.t("console.welcome", scope: :capistrano, stage: stage)
  loop do
    print "#{stage}> "

    command = (input = $stdin.gets) ? input.chomp : "exit"

    next if command.empty?

    if %w{quit exit q}.include? command
      puts t("console.bye")
      break
    else
      begin
        on roles :all do
          execute command
        end
      rescue => e
        puts e
      end
    end
  end
end