Adding wicd, taking in the patch sent by roconnor to nix-dev on 2010-01-07.

svn path=/nixos/trunk/; revision=19298

modules/module-list.nix

@@ -90,6 +90,7 @@
   ./services/networking/ssh/sshd.nix
   ./services/networking/tftpd.nix
   ./services/networking/vsftpd.nix
+  ./services/networking/wicd.nix
   ./services/networking/wpa_supplicant.nix
   ./services/networking/xinetd.nix
   ./services/printing/cupsd.nix

modules/services/networking/wicd.nix

@@ -0,0 +1,41 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+{
+
+  ###### interface
+
+  options = {
+  
+    networking.wicd.enable = mkOption {
+      default = false;
+      description = ''
+        Whether to start <command>wicd</command>. Wired and
+        wireless network configurations can then be managed by
+        wicd-client.
+      '';
+    };
+  };
+
+
+  ###### implementation
+  
+  config = mkIf config.networking.wicd.enable {
+
+    environment.systemPackages = [pkgs.wicd];
+
+    jobs.wicd = 
+      { startOn = "started network-interfaces";
+        stopOn = "stopping network-interfaces";
+
+        script =
+          "${pkgs.wicd}/sbin/wicd -f";
+      };
+
+    services.dbus.enable = true;
+    services.dbus.packages = [pkgs.wicd];
+  
+  };
+
+}