* Start a display manager (SLiM).

svn path=/nixos/trunk/; revision=8045

system/upstart.nix

@@ -118,8 +118,8 @@ import ../upstart-jobs/gather.nix {
   # X server.
   ++ optional ["services" "xserver" "enable"]
     (import ../upstart-jobs/xserver.nix {
-      inherit (pkgs) stdenv writeText lib xterm;
-      inherit (pkgs.xorg) xorgserver xinit twm
+      inherit (pkgs) stdenv writeText lib xterm slim;
+      inherit (pkgs.xorg) xorgserver xinit twm xauth
         xf86inputkeyboard xf86inputmouse xf86videovesa;
       fontDirectories = import ./fonts.nix {inherit pkgs;};
     })

upstart-jobs/xserver.nix

@@ -9,6 +9,9 @@
 , # Initial client/window manager.
   twm, xterm
 
+, # Needed for the display manager (SLiM).
+  slim, xauth
+
 , xf86inputkeyboard
 
 , xf86inputmouse
@@ -51,6 +54,24 @@ let
     ${xterm}/bin/xterm -ls
   ";
 
+  xserverArgs = [
+    "-ac"
+    "-nolisten tcp"
+    "-terminate"
+    "-logfile" "/var/log/X.${toString display}.log"
+    "-modulepath" "${xorgserver}/lib/xorg/modules,${xf86inputkeyboard}/lib/xorg/modules/input,${xf86inputmouse}/lib/xorg/modules/input,${xf86videovesa}/lib/xorg/modules/drivers"
+    "-config ${config}"
+    ":${toString display}" "vt${toString tty}"
+  ];
+
+  # Note: lines must not be indented.
+  slimConfig = writeText "slim.cfg" "
+xauth_path ${xauth}/bin/xauth
+default_xserver ${xorgserver}/bin/X
+xserver_arguments ${toString xserverArgs}
+login_cmd exec ${stdenv.bash}/bin/sh ${clientScript}
+  ";
+
 in
 
 rec {
@@ -63,13 +84,10 @@ start script
 
 end script
 
-# !!! -ac is a bad idea.
-exec ${xinit}/bin/xinit ${stdenv.bash}/bin/sh ${clientScript} -- ${xorgserver}/bin/X \\
-    -ac -nolisten tcp -terminate \\
-    -logfile /var/log/X.${toString display}.log \\
-    -modulepath ${xorgserver}/lib/xorg/modules,${xf86inputkeyboard}/lib/xorg/modules/input,${xf86inputmouse}/lib/xorg/modules/input,${xf86videovesa}/lib/xorg/modules/drivers \\
-    -config ${config} \\
-    :${toString display} vt${toString tty}
+env SLIM_CFGFILE=${slimConfig}
+env FONTCONFIG_FILE=/etc/fonts/fonts.conf # !!! cleanup
+
+exec ${slim}/bin/slim
   ";
   
 }