* Support entering maintenance mode ("shutdown now") and powering off

the system ("halt").

svn path=/nixu/trunk/; revision=7083

test/boot-environment.nix

@@ -101,6 +101,16 @@ rec {
       (import ./upstart-jobs/dhclient.nix {
         dhcp = pkgs.dhcpWrapper;
       })
+
+      # Handles the maintenance/stalled event (single-user shell).
+      (import ./upstart-jobs/maintenance-shell.nix {
+        inherit (pkgs) bash;
+      })
+
+      # Handles the reboot/halt events.
+      (import ./upstart-jobs/halt.nix {
+        inherit (pkgs) bash;
+      })
     ]
 
     # The terminals on ttyX.

test/upstart-jobs/halt.nix

@@ -0,0 +1,23 @@
+{bash}:
+
+{
+  name = "sys-halt";
+  
+  job = "
+start on reboot
+start on halt
+start on system-halt
+start on power-off
+
+script
+    exec < /dev/tty1 > /dev/tty1 2>&1
+    echo \"\"
+    echo \"<<< SYSTEM SHUTDOWN >>>\"
+    echo \"\"
+
+    # Right now all events above power off the system.
+    exec halt -f -p
+end script
+  ";
+  
+}

test/upstart-jobs/maintenance-shell.nix

@@ -0,0 +1,19 @@
+{bash}:
+
+{
+  name = "maintenance-shell";
+  
+  job = "
+start on maintenance
+start on stalled
+
+script
+    exec < /dev/tty1 > /dev/tty1 2>&1
+    echo \"\"
+    echo \"<<< MAINTENANCE SHELL >>>\"
+    echo \"\"
+    exec ${bash}/bin/sh
+end script
+  ";
+  
+}