Bring better sortOrder for my repos back

app/models/repo.coffee

@@ -107,7 +107,7 @@ Repo = Model.extend
     duration
   ).property('_lastBuildDuration', 'lastBuildStartedAt', 'lastBuildFinishedAt')
 
-  sortOrder: (->
+  sortOrderForLandingPage: (->
     state = @get('lastBuildState')
     if state != 'passed' && state != 'failed'
       0
@@ -115,6 +115,14 @@ Repo = Model.extend
       parseInt(@get('lastBuildId'))
   ).property('lastBuildId', 'lastBuildState')
 
+  sortOrder: (->
+    # cuz sortAscending seems buggy when set to false
+    if lastBuildFinishedAt = @get('lastBuildFinishedAt')
+      - new Date(lastBuildFinishedAt).getTime()
+    else
+      - new Date('9999').getTime() - parseInt(@get('lastBuildId'))
+  ).property('lastBuildFinishedAt', 'lastBuildId')
+
   stats: (->
     if @get('slug')
       @get('_stats') || $.get("https://api.github.com/repos/#{@get('slug')}", (data) =>

app/routes/home.coffee

@@ -16,7 +16,7 @@ Route = BasicRoute.extend
       withExternal: Ember.computed.union('repos', 'external')
       sorted: Ember.computed.sort('withExternal', 'sortedReposKeys')
       content: limit('sorted', 'limit')
-      sortedReposKeys: ['sortOrder:desc']
+      sortedReposKeys: ['sortOrderForLandingPage:desc']
       limit: 3
     ).create()