ping.coffeeをping.jsへ書き換えようとしたときに生じたエラー(?

もとのping.coffee

# Description:
#   Utility commands surrounding Hubot uptime.
#
# Commands:
#   hubot ping - Reply with pong
#   hubot echo <text> - Reply back with <text>
#   hubot time - Reply with current time
#   hubot die - End hubot process

module.exports = (robot) ->
  robot.respond /PING$/i, (msg) ->
    msg.send "PONG!"

  robot.respond /ADAPTER$/i, (msg) ->
    msg.send robot.adapterName

  robot.respond /ECHO (.*)$/i, (msg) ->
    msg.send msg.match[1]

  robot.respond /TIME$/i, (msg) ->
    msg.send "Server time is: #{new Date()}"

  robot.respond /DIE$/i, (msg) ->
    msg.send "Goodbye, cruel world."
    process.exit 0

ここから単純なコマンドでここだけ抜き出そうとしたら、

module.exports = (robot) ->
  robot.respond /PING$/i, (msg) ->
    msg.send "PONG!"

実行するとこんなメッセージが

[Tue Oct 14 2014 18:50:59 GMT+0900 (JST)] INFO /Users/ryousuke/Sites/offside/hubot/scripts/bbpull.js is using deprecated documentation syntax

descriptionを入れる必要があるみたい

たぶんドキュメントに書いてるんだろうけど..

# Description:
#   Utility commands surrounding Hubot uptime.
#
# Commands:
#   hubot ping - Reply with pong
#   hubot echo <text> - Reply back with <text>
#   hubot time - Reply with current time
#   hubot die - End hubot process

module.exports = (robot) ->
  robot.respond /PING$/i, (msg) ->
    msg.send "PONG!"

js変換するとこんな感じです。 commandsは無くても問題ないかも。

// Description:
//   Messing around with the today API.
// Commands:
//   hubot today  - Return today at random.

module.exports = function(robot) {
  return robot.respond(/BBB$/i, function(msg) {
    return msg.send("PONGbbb!");
  });
};

まとめ

hubotはコメントアウトのメッセージまで読み込んでたんですね。