add --invalidate-cache option to update-repoinfo command

rhodecode/lib/paster_commands/update_repoinfo.py

@@ -68,6 +68,11 b' class Command(BasePasterCommand):'
             repo_list = Repository.getAll()
         RepoModel.update_repoinfo(repositories=repo_list)
         Session().commit()
+
+        if self.options.invalidate_cache:
+            for r in repo_list:
+                r.invalidate
+        Session().commit()
         log.info('Updated cache for %s repositories' % (len(repo_list)))
 
     def update_parser(self):
@@ -75,5 +80,9 b' class Command(BasePasterCommand):'
                           action='store',
                           dest='repo_update_list',
                           help="Specifies a comma separated list of repositores "
-                                "to update last commit info for. OPTIONAL",
-                          )
+                                "to update last commit info for. OPTIONAL")
+        self.parser.add_option('--invalidate-cache',
+                           action='store_true',
+                           dest='invalidate_cache',
+                           help="Trigger cache invalidation event for repos. "
+                                "OPTIONAL")