Merge pull request #614 from aaronott/master

Add a call for commandlinefu

src/scripts/commandlinefu.coffee

@@ -0,0 +1,37 @@
+# Description:
+#   Returns a command from commandlinefu.com
+#
+# Dependencies:
+#   None
+#
+# Configuration:
+#   None
+#
+# Commands:
+#   hubot commandlinefu me - returns random command
+#   hubot commandlinefu me <command> - random entry for the comand passed
+#
+# Author:
+#   aaronott
+
+module.exports = (robot) ->
+  robot.respond /commandlinefu(?: me)? *(.*)?/i, (msg) ->
+    query = if msg.match[1]
+          "matching/#{msg.match[1]}/#{new Buffer(msg.match[1]).toString('base64')}/json"
+        else 
+          "random/json"
+    command msg, "http://www.commandlinefu.com/commands/#{query}", (cmd) ->
+      msg.send cmd
+
+command = (msg, uri, cb) ->
+  msg.http(uri)
+    .get() (err, res, body) ->
+      # The random call passes back a 302 to redirect to a new page, if this
+      # happens we redirect through a recursive function call passing the new
+      # location to retrieve
+      if res.statusCode == 302
+        command msg, res.headers.location, cb
+      else
+        # choose a random command from the returned list
+        cc = msg.random JSON.parse(body)
+        cb("-- #{cc.summary}\n#{cc.command}")