raise exception if gitolite is broken

app/views/errors/gitolite.html.haml

@@ -15,7 +15,7 @@
       %p
         Diagnostic tool:
         %pre
-          bundle exec rake gitlab:app:status RAILS_ENV=production
+          bundle exec rake gitlab:check RAILS_ENV=production
     %li
       %p
         Permissions:

lib/gitlab/backend/gitolite_config.rb

@@ -6,6 +6,7 @@ module Gitlab
   class GitoliteConfig
     class PullError < StandardError; end
     class PushError < StandardError; end
+    class BrokenGitolite < StandardError; end
 
     attr_reader :config_tmp_dir, :ga_repo, :conf
 
@@ -72,6 +73,10 @@ module Gitlab
       log("Push error ->  " + " " + ex.message)
       raise Gitolite::AccessDenied, ex.message
 
+    rescue BrokenGitolite => ex
+      log("Gitolite error ->  " + " " + ex.message)
+      raise Gitolite::AccessDenied, ex.message
+
     rescue Exception => ex
       log(ex.class.name + " " + ex.message)
       raise Gitolite::AccessDenied.new("gitolite timeout")
@@ -202,7 +207,15 @@ module Gitlab
       system('git commit -m "GitLab"') # git commit returns 0 on success, and 1 if there is nothing to commit
       raise "Git commit failed." unless [0,1].include? $?.exitstatus
 
-      if system('git push')
+      stdin, stdout, stderr = Open3.popen3('git push')
+      push_output = stderr.read
+      push_status = $?.to_i
+
+      if push_output =~ /remote\: FATAL/
+        raise BrokenGitolite, push_output
+      end
+
+      if push_status.zero?
         Dir.chdir(Rails.root)
       else
         raise PushError, "unable to push gitolite-admin repo"