* Udev jobs can now declare a passthru attribute which is

useful for testing the building of specific parts of
  a service, e.g. you can do
  
    $ nix-build /etc/nixos/nixos/ -A upstartJobs.udev.passthru.udevRules

  to build the udev rules directory of the udev service.

svn path=/nixos/trunk/; revision=12243

upstart-jobs/make-job.nix

@@ -33,4 +33,6 @@
   
   # Allow jobs to declare groups that should be created.
   groups = if job ? groups then job.groups else [];
+
+  passthru = if job ? passthru then job.passthru else {};
 }