From a44a7271a8dd4d1fb92c9ea94b276ae266762463 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 14 Aug 2012 17:30:11 -0400
Subject: [PATCH] Warn about Upstart modules with an unknown startOn condition

---
 modules/system/upstart/upstart.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/system/upstart/upstart.nix b/modules/system/upstart/upstart.nix
index 92a7add88eb9..c31314f10919 100644
--- a/modules/system/upstart/upstart.nix
+++ b/modules/system/upstart/upstart.nix
@@ -59,7 +59,9 @@ let
       after =
         (if job.startOn == "stopped udevtrigger" then [ "systemd-udev-settle.service" ] else
          if job.startOn == "started udev" then [ "systemd-udev.service" ] else
-         []) ++ job.after;
+         if job.startOn == "" || job.startOn == "startup" then [ ] else
+         builtins.trace "Warning: job ‘${job.name}’ has unknown startOn value ‘${job.startOn}’." []
+        ) ++ job.after;
 
       wantedBy =
         (if job.startOn == "" then [ ] else [ "multi-user.target" ]) ++ job.wantedBy;