From 8c1b7661ae7801233df2ef5cacb07c7382d74fdd Mon Sep 17 00:00:00 2001
From: aszlig <aszlig@redmoonstudios.org>
Date: Tue, 15 Dec 2015 04:30:10 +0100
Subject: lib/call-machine: Clean up expression

This gets rid of the use attribute, which is now called "config". We had
the "config" attribute before but it was kinda pointless, because it was
just the import of the path and nothing else.

So the config attribute now is the machine configuration with all of the
vuizvui modules imported as well.

The "build" attribute is now called "eval", which is more appropriate,
because it's the evaluation of the configuration and not the finished
system build.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
---
 lib/call-machine.nix | 38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)

(limited to 'lib')

diff --git a/lib/call-machine.nix b/lib/call-machine.nix
index 3d524439..6061113f 100644
--- a/lib/call-machine.nix
+++ b/lib/call-machine.nix
@@ -1,14 +1,13 @@
-system: path:
+path: { system ? builtins.currentSystem }:
 
 let
   nixpkgs = import ../nixpkgs-path.nix;
 
-in rec {
-  config = import path;
-  build = import "${nixpkgs}/nixos/lib/eval-config.nix" {
+  eval = import "${nixpkgs}/nixos/lib/eval-config.nix" {
     inherit system;
-    modules = [ config ] ++ import ../modules/module-list.nix;
+    modules = [ path ] ++ import ../modules/module-list.nix;
   };
+
   iso = let
     isoModule = "${nixpkgs}/nixos/modules/installer/cd-dvd/iso-image.nix";
     patchedModule = (import nixpkgs {}).runCommand "iso-image.nix" {} ''
@@ -17,14 +16,14 @@ in rec {
           "${isoModule}" > "$out"
     '';
     wrapIso = { config, pkgs, lib, ... }@attrs: let
-      eval = (import patchedModule attrs);
-      evalcfg = eval.config or {};
-      bootcfg = evalcfg.boot or {};
-      fscfg = evalcfg.fileSystems or {};
+      patchedEval = (import patchedModule attrs);
+      patchedEvalcfg = eval.config or {};
+      bootcfg = patchedEvalcfg.boot or {};
+      fscfg = patchedEvalcfg.fileSystems or {};
     in {
-      options = eval.options or {};
-      imports = eval.imports or [];
-      config = evalcfg // {
+      options = patchedEval.options or {};
+      imports = patchedEval.imports or [];
+      config = patchedEvalcfg // {
         boot = bootcfg // lib.optionalAttrs (bootcfg ? loader) {
           loader = lib.mkForce bootcfg.loader;
         };
@@ -40,10 +39,10 @@ in rec {
   in import "${nixpkgs}/nixos/lib/eval-config.nix" {
     inherit system;
     modules = [
-      use wrapIso
+      config wrapIso
       (
         { lib, ... }: let
-          name = build.config.networking.hostName;
+          name = eval.config.networking.hostName;
           upperName = lib.toUpper name;
         in rec {
           isoImage.isoName = "${name}.iso";
@@ -55,11 +54,16 @@ in rec {
       )
     ];
   };
-  use = {
-    imports = [ config ] ++ import ../modules/module-list.nix;
+
+  config = {
+    imports = [ path ] ++ import ../modules/module-list.nix;
   };
+
   vm = (import "${nixpkgs}/nixos" {
     inherit system;
-    configuration = use;
+    configuration = config;
   }).vm;
+
+in {
+  inherit config eval iso vm;
 }
-- 
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