add facter.dhcp.enable option

Author: Mic92

modules/nixos/networking/default.nix

@@ -4,7 +4,11 @@
     ./broadcom.nix
     ./intel.nix
   ];
-  config = lib.mkIf (builtins.length (config.facter.report.network_interface or [ ]) > 0) {
+
+  options.facter.detected.dhcp.enable = lib.mkEnableOption "Facter dhcp module" // {
+    default = builtins.length config.facter.report.network_interface or [ ] > 0;
+  };
+  config = lib.mkIf config.facter.detected.dhcp.enable {
     networking.useDHCP = lib.mkDefault true;
     networking.useNetworkd = lib.mkDefault true;
   };