Only import from github when changes are made, rather than exporting. This…

Only import from github when changes are made, rather than exporting. This prevents bugs in the cms from preventing changes via git

cms/djangoapps/github_sync/views.py

@@ -5,7 +5,7 @@ from django.http import HttpResponse
 from django.conf import settings
 from django_future.csrf import csrf_exempt
 
-from . import sync_with_github, load_repo_settings
+from . import import_from_github, load_repo_settings
 
 log = logging.getLogger()
 
@@ -46,6 +46,6 @@ def github_post_receive(request):
         log.info('Ignoring changes to non-tracked branch %s in repo %s' % (branch_name, repo_name))
         return HttpResponse('Ignoring non-tracked branch')
 
-    sync_with_github(repo)
+    import_from_github(repo)
 
     return HttpResponse('Push received')