Added node-modules

node_modules/piler/lib/livecss.coffee

@@ -0,0 +1,99 @@
+fs = require "fs"
+
+
+
+try
+  socketio = require('socket.io')
+catch e
+  socketio = null
+
+incUrlSeq = (url) ->
+  seqRegexp = /(--([0-9]+))\..*$/
+  match = url.match seqRegexp
+  seq = parseInt match?[2] or 0, 10
+
+  if match
+    cleanUrl = url.replace match[1], ""
+  else
+    cleanUrl = url
+
+  cleanUrl = cleanUrl.substr(0,cleanUrl.lastIndexOf('.'))+"--#{ seq+1 }"+cleanUrl.substr(cleanUrl.lastIndexOf('.'))
+
+# Yep, this function will be executed in the browser.
+clientUpdater = ->
+  console.log "CSS updater is active. Waiting for connection..."
+
+  pile = io.connect('/pile')
+
+  pile.on "connect", ->
+    console.log "CSS updater has connected"
+
+  pile.on "disconnect", ->
+    console.log "CSS updater has disconnected! Refresh to reconnect"
+
+  pile.on "update", (fileId) ->
+    elem = document.getElementById "pile-" + fileId
+    if elem
+      console.log "updating", fileId, elem
+      elem.href = PILE.incUrlSeq elem.href
+    else
+      console.log "id", fileId, "not found"
+
+class LiveUpdateMixin
+
+  installSocketIo: (userio) ->
+
+    @addUrl "/socket.io/socket.io.js"
+    @addOb PILE:
+      incUrlSeq: incUrlSeq
+    @addExec clientUpdater
+
+    if not userio
+      io = socketio.listen @app
+    else
+      io = userio
+
+    # Why does not work?
+    io.configure ->
+      io.set 'log level', 0
+
+    @io = io.of "/pile"
+
+
+  liveUpdate: (cssmanager, userio) ->
+    if @production
+      @logger.info "Not activating live update in production"
+      return
+
+    if not @app
+      throw new Error 'JSManager must be bind to a http server (Express app)
+        before it can live update CSS'
+
+    @installSocketIo userio
+
+    listener = if @server then @server else @app
+    listener.on "listening", =>
+      @logger.info "Activating CSS updater"
+
+      for k, pile of cssmanager.piles
+        for codeOb in pile.code
+          @_watch pile, codeOb
+
+
+  _watch: (pile, codeOb) ->
+    return unless codeOb.type is "file"
+    @logger.info "watching #{ codeOb.filePath } for changes"
+    fs.watch codeOb.filePath, =>
+      @logger.info "updated", codeOb.filePath
+      @io.emit "update", codeOb.getId()
+
+# For testing
+LiveUpdateMixin.incUrlSeq = incUrlSeq
+
+if socketio?
+  module.exports = LiveUpdateMixin
+else
+  module.exports = class LiveUpdateDisabled
+    liveUpdate: ->
+      @logger.error "No socket.io installed. Live update won't work."
+