lib/call-machine: Allow to pass extra config

So far callMachine only accepted the system attribute as its sole
argument, but especially if there are more machines with common
attributes, it makes sense to actually call the machines with option
definitions that are for example enabling a specific profile module.

For example:

let
  commonAttrs.extraConfig = {
    common.profile.enable = true;
  };
in {
  foo = callMachine ./foo commonAttrs;
  bar = callMachine ./bar commonAttrs;
}

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/lib/call-machine.nix b/lib/call-machine.nix
index 79829995..16abb9d2 100644
--- a/lib/call-machine.nix
+++ b/lib/call-machine.nix
@@ -1,11 +1,15 @@
-path: { system ? builtins.currentSystem }:
+path:
+
+{ system ? builtins.currentSystem
+, extraConfig ? {}
+}:
 
 let
   nixpkgs = import ../nixpkgs-path.nix;
 
   eval = import "${nixpkgs}/nixos/lib/eval-config.nix" {
     inherit system;
-    modules = [ path ] ++ import ../modules/module-list.nix;
+    modules = [ path extraConfig ] ++ import ../modules/module-list.nix;
   };
 
   iso = mkIso "${nixpkgs}/nixos/modules/installer/cd-dvd/iso-image.nix" (
@@ -55,7 +59,7 @@ let
   };
 
   config = {
-    imports = [ path ] ++ import ../modules/module-list.nix;
+    imports = [ path extraConfig ] ++ import ../modules/module-list.nix;
   };
 
   vm = (import "${nixpkgs}/nixos" {