add private attribute to repo, prefix job channels based on the private status, otherwise use what api hands over

assets/scripts/app/models/job.coffee

@@ -93,17 +93,18 @@ require 'travis/model'
     return if @get('subscribed')
     @set('subscribed', true)
     if Travis.pusher
-      Travis.pusher.subscribe "job-#{@get('id')}"
+      prefix = if @get('repo.private') then 'private-' else ''
+      Travis.pusher.subscribe "#{prefix}job-#{@get('id')}",
 
   unsubscribe: ->
     return unless @get('subscribed')
     @set('subscribed', false)
     if Travis.pusher
+      prefix = if @get('repo.private') then 'private-' else ''
       Travis.pusher.unsubscribe "job-#{@get('id')}"
 
   onStateChange: (->
-    if @get('state') == 'finished' && Travis.pusher
-      Travis.pusher.unsubscribe "job-#{@get('id')}"
+    @unsubscribe() if @get('state') == 'finished' && Travis.pusher
   ).observes('state')
 
   isPropertyLoaded: (key) ->

assets/scripts/app/models/repo.coffee

@@ -5,6 +5,7 @@ require 'travis/model'
   id:                  Ember.attr('string')
   slug:                Ember.attr('string')
   description:         Ember.attr('string')
+  private:             Ember.attr('boolean')
   lastBuildId:         Ember.attr('string')
   lastBuildNumber:     Ember.attr(Number)
   lastBuildState:      Ember.attr('string')

assets/scripts/app/pusher.coffee

@@ -4,7 +4,6 @@ Travis.Pusher = (key) ->
 
 $.extend Travis.Pusher,
   CHANNELS: ['common']
-  CHANNEL_PREFIX: ''
   ENCRYPTED: false
 
 $.extend Travis.Pusher.prototype,
@@ -27,19 +26,14 @@ $.extend Travis.Pusher.prototype,
     @subscribe(channel) for channel in channels
 
   subscribe: (channel) ->
-    channel = @prefix(channel)
     console.log("subscribing to #{channel}")
     unless @pusher?.channel(channel)
       @pusher.subscribe(channel).bind_all((event, data) => @receive(event, data))
 
   unsubscribe: (channel) ->
-    channel = @prefix(channel)
     console.log("unsubscribing from #{channel}")
     @pusher.unsubscribe(channel) if @pusher?.channel(channel)
 
-  prefix: (channel) ->
-    "#{Travis.Pusher.CHANNEL_PREFIX}#{channel}"
-
   # process pusher messages in batches every 5 minutes when the page is hidden
   processingIntervalWhenHidden: 1000 * 60 * 5