* Make all Upstart jobs shut down on the `starting shutdown' event.

This ensures that they're gone by the time the shutdown job runs, so
  it doesn't have to stop them itself.
* Don't respawn tasks, as it doesn't seem useful (if they fail they're
  likely to fail again if they're restarted).

svn path=/nixos/trunk/; revision=22099

modules/system/upstart-events/runlevel.nix

@@ -14,9 +14,9 @@ with pkgs.lib;
       script =
         ''
           case "$RUNLEVEL" in
-              0) initctl start shutdown MODE=poweroff;;
+              0) initctl start shutdown --no-wait MODE=poweroff;;
-              1) initctl start shutdown MODE=maintenance;;
+              1) initctl start shutdown --no-wait MODE=maintenance;;
-              6) initctl start shutdown MODE=reboot;;
+              6) initctl start shutdown --no-wait MODE=reboot;;
               *) echo "Unsupported runlevel: $RUNLEVEL";;
           esac
         '';

modules/system/upstart-events/shutdown.nix

@@ -9,8 +9,12 @@ with pkgs.lib;
 
       task = true;
 
+      stopOn = ""; # must override the default ("starting shutdown")
+
       environment = { MODE = "poweroff"; };
 
+      extraConfig = "console owner";
+
       script =
         ''
           set +e # continue in case of errors
@@ -29,24 +33,10 @@ with pkgs.lib;
           export PATH=${pkgs.utillinux}/bin:${pkgs.utillinux}/sbin:$PATH
       
 
-          # Set the hardware clock to the system time.
-          echo "setting the hardware clock..."
-          hwclock --systohc --utc
-      
-      
           # Do an initial sync just in case.
           sync
 
 
-          # Stop all Upstart jobs.
-          initctl list | while IFS=", " read jobName status rest; do
-              if test "$jobName" != shutdown -a "$status" != "stop/waiting"; then
-                  echo "stopping $jobName..."
-                  stop "$jobName"
-              fi
-          done
-      
-      
           # Kill all remaining processes except init and this one.
           echo "sending the TERM signal to all processes..."
           kill -TERM -1
@@ -64,12 +54,17 @@ with pkgs.lib;
               echo ""
               echo "<<< Maintenance shell >>>"
               echo ""
-              while ! ${pkgs.bash}/bin/bash --login; do true; done
+              ${pkgs.pam_login}/bin/login root
               initctl emit -n startup
               exit 0
           fi
                 
       
+          # Set the hardware clock to the system time.
+          echo "setting the hardware clock..."
+          hwclock --systohc --utc
+      
+      
           # Unmount helper functions.
           getMountPoints() {
               cat /proc/mounts \

modules/system/upstart/upstart.nix

@@ -75,7 +75,7 @@ let
           ''}
           
           ${optionalString job.task "task"}
-          ${optionalString job.respawn "respawn"}
+          ${optionalString (!job.task && job.respawn) "respawn"}
 
           ${optionalString (job.preStop != "") ''
             pre-stop script
@@ -153,7 +153,7 @@ let
 
     stopOn = mkOption {
       type = types.string;
-      default = "shutdown";
+      default = "starting shutdown";
       description = ''
         The Upstart event that triggers this job to be stopped.
       '';