* Define the Upstart package to use in one place.

svn path=/nixos/branches/upstart-0.6/; revision=18187

modules/config/system-path.nix

@@ -10,6 +10,7 @@ let
   requiredPackages =
     [ config.system.sbin.modprobe # must take precedence over module_init_tools
       config.system.sbin.mount # must take precedence over util-linux
+      config.system.build.upstart
       config.environment.nix
       pkgs.acl
       pkgs.attr
@@ -53,7 +54,6 @@ let
       pkgs.sysvtools
       pkgs.time
       pkgs.udev
-      pkgs.upstart
       pkgs.usbutils
       pkgs.utillinux
     ];

modules/services/networking/dhclient.nix

@@ -26,13 +26,13 @@ let
           # hostnames in its config file, then it will never do
           # anything ever again ("couldn't resolve ..., giving up on
           # it"), so we silently lose time synchronisation.
-          ${pkgs.upstart}/sbin/initctl stop ntpd
+          ${config.system.build.upstart}/sbin/initctl stop ntpd
           
-          ${pkgs.upstart}/sbin/initctl emit ip-up
+          ${config.system.build.upstart}/sbin/initctl emit ip-up
       fi
 
       if test "$reason" = EXPIRE -o "$reason" = RELEASE; then
-          ${pkgs.upstart}/sbin/initctl emit ip-down
+          ${config.system.build.upstart}/sbin/initctl emit ip-down
       fi
     '';
   

modules/services/networking/gw6c.nix

@@ -6,10 +6,12 @@ let
 
   cfg = config.services.gw6c;
 
+  # !!! Move this from the services tree to the nixos tree.
   gw6cService = import (servicesPath + /gw6c) {
     inherit (pkgs) stdenv gw6c coreutils 
-      procps upstart iputils gnused 
+      procps iputils gnused 
       gnugrep seccure writeScript;
+    upstart = config.system.build.upstart;
     username = cfg.username;
     password = cfg.password;
     server = cfg.server;

modules/services/x11/display-managers/kdm.nix

@@ -12,8 +12,8 @@ let
   defaultConfig =
     ''
       [Shutdown]
-      HaltCmd=${pkgs.upstart}/sbin/halt
+      HaltCmd=${config.system.build.upstart}/sbin/halt
-      RebootCmd=${pkgs.upstart}/sbin/reboot
+      RebootCmd=${config.system.build.upstart}/sbin/reboot
       ${optionalString (config.system.boot.loader.id == "grub") ''
         BootManager=Grub
       ''}

modules/services/x11/display-managers/slim.nix

@@ -14,8 +14,8 @@ let
       xserver_arguments ${dmcfg.xserverArgs}
       sessions ${pkgs.lib.concatStringsSep "," (dmcfg.session.names ++ ["custom"])}
       login_cmd exec ${pkgs.stdenv.bash}/bin/sh ${dmcfg.session.script} "%session"
-      halt_cmd ${pkgs.upstart}/sbin/shutdown -h now
+      halt_cmd ${config.system.build.upstart}/sbin/shutdown -h now
-      reboot_cmd ${pkgs.upstart}/sbin/shutdown -r now
+      reboot_cmd ${config.system.build.upstart}/sbin/shutdown -r now
       ${if cfg.defaultUser != "" then "default_user " + cfg.defaultUser else ""}
       ${if cfg.hideCursor then "hidecursor true" else ""}
     '';

modules/system/activation/top-level.nix

@@ -75,11 +75,11 @@ let
       ln -s ${config.system.activationScripts.script} $out/activate
       ln -s ${config.system.build.etc}/etc $out/etc
       ln -s ${config.system.path} $out/sw
-      ln -s ${pkgs.upstart} $out/upstart
+      ln -s ${config.system.build.upstart} $out/upstart
 
       echo "$kernelParams" > $out/kernel-params
       echo "$configurationName" > $out/configuration-name
-      echo "${toString pkgs.upstart.interfaceVersion}" > $out/upstart-interface-version
+      echo "${toString config.system.build.upstart.interfaceVersion}" > $out/upstart-interface-version
 
       mkdir $out/fine-tune
       childCount=0;
@@ -113,7 +113,7 @@ let
       pkgs.gnugrep
       pkgs.findutils
       pkgs.diffutils
-      pkgs.upstart # for initctl
+      config.system.build.upstart # for initctl
     ];
 
     # Boot loaders

modules/system/boot/stage-2.nix

@@ -15,9 +15,10 @@ let
 
   };
 
-  inherit (pkgs) substituteAll writeText coreutils utillinux udev upstart;
+  inherit (pkgs) substituteAll writeText coreutils utillinux udev;
   kernel = config.boot.kernelPackages.kernel;
   activateConfiguration = config.system.activationScripts.script;
+  upstart = config.system.build.upstart;
 
   # Path for Upstart jobs.  Should be quite minimal.
   upstartPath =
@@ -25,7 +26,7 @@ let
       pkgs.findutils
       pkgs.gnugrep
       pkgs.gnused
-      pkgs.upstart
+      upstart
     ];
 
   bootStage2 = substituteAll {

modules/system/upstart/upstart.nix

@@ -4,6 +4,9 @@ with pkgs.lib;
 
 let
 
+  upstart = pkgs.upstart;
+
+
   # From a job description, generate an Upstart job file.
   makeJob = job:
 
@@ -75,7 +78,7 @@ let
 
         
   jobs =
-    [pkgs.upstart] # for the built-in logd job
+    [ upstart ] # for the built-in logd job
     ++ map (job: job.upstartPkg) (attrValues config.jobs);
 
     
@@ -278,6 +281,8 @@ in
   
   config = {
 
+    system.build.upstart = upstart;
+
     environment.etc =
       [ { # The Upstart events defined above.
           source = "${jobsDir}/etc/event.d";