Convert "swap"

svn path=/nixos/branches/fix-style/; revision=14402

system/options.nix

@@ -422,6 +422,8 @@ in
 
     (import ../upstart-jobs/filesystems.nix) # Mount file systems.
 
+    (import ../upstart-jobs/swap.nix)
+
 
     # security
     (import ../system/sudo.nix)

upstart-jobs/default.nix

@@ -71,12 +71,6 @@ let
   jobs = map makeJob
     ([
     
-    # Swapping.
-    (import ../upstart-jobs/swap.nix {
-      inherit (pkgs) utillinux lib;
-      swapDevices = config.swapDevices;
-    })
-
     # Network interfaces.
     (import ../upstart-jobs/network-interfaces.nix {
       inherit modprobe config;

upstart-jobs/swap.nix

@@ -1,7 +1,13 @@
-{lib, utillinux, swapDevices}:
+{pkgs, config, ...}:
+
+###### implementation
 
 let
 
+  inherit (pkgs) utillinux lib;
+
+  swapDevices = config.swapDevices;
+
   devicesByPath =
     map (x: x.device) (lib.filter (x: x ? device) swapDevices);
     
@@ -10,35 +16,39 @@ let
 
 in
 
+
 {
-  name = "swap";
+  services = {
+    extraJobs = [{
+      name = "swap";
       
-  job = "
+      job = "
-start on startup
+        start on startup
-start on new-devices
+        start on new-devices
         
-script
+        script
-    for device in ${toString devicesByPath}; do
+            for device in ${toString devicesByPath}; do
-        ${utillinux}/sbin/swapon \"$device\" || true
+                ${utillinux}/sbin/swapon \"$device\" || true
-    done
+            done
             
-    for label in ${toString devicesByLabel}; do
+            for label in ${toString devicesByLabel}; do
-        ${utillinux}/sbin/swapon -L \"$label\" || true
+                ${utillinux}/sbin/swapon -L \"$label\" || true
-    done
+            done
             
-    # Remove swap devices not listed in swapDevices.
+            # Remove swap devices not listed in swapDevices.
-    # !!! disabled because it doesn't work with labels
+            # !!! disabled because it doesn't work with labels
-    #for used in $(cat /proc/swaps | grep '^/' | sed 's/ .*//'); do
+            #for used in $(cat /proc/swaps | grep '^/' | sed 's/ .*//'); do
-    #    found=
+            #    found=
-    #    for device in $ {toString swapDevices}; do
+            #    for device in $ {toString swapDevices}; do
-    #        if test \"$used\" = \"$device\"; then found=1; fi
+            #        if test \"$used\" = \"$device\"; then found=1; fi
-    #    done
+            #    done
-    #    if test -z \"$found\"; then
+            #    if test -z \"$found\"; then
-    #        ${utillinux}/sbin/swapoff \"$used\" || true
+            #        ${utillinux}/sbin/swapoff \"$used\" || true
-    #    fi
+            #    fi
-    #done
+            #done
-    
-end script
-  ";
             
+        end script
+      ";
+    }];
+  };
 }