From 0d9ff479f88be5b1e9cecb4aa489b4debe58d1a6 Mon Sep 17 00:00:00 2001
From: Nessdoor <tlopez@keio.jp>
Date: Sun, 27 Aug 2023 03:14:10 +0200
Subject: [PATCH] images/nixos: pass optional system attribute to evalConfig

This allows for image.nix to be used inside hermetic builds where
builtins.currentSystem is not available as an attribute.
---
 images/nixos/image.nix | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/images/nixos/image.nix b/images/nixos/image.nix
index 227039b..8e23f79 100644
--- a/images/nixos/image.nix
+++ b/images/nixos/image.nix
@@ -1,10 +1,16 @@
-{ pkgs ? import <nixpkgs> {} }:
+{ pkgs ? import <nixpkgs> { }
+, hostPlatform ? { system = builtins.currentSystem; }
+}:
 
 let
   makeDiskImage = import "${pkgs.path}/nixos/lib/make-disk-image.nix";
   evalConfig = import "${pkgs.path}/nixos/lib/eval-config.nix";
   config = (evalConfig {
-    modules = [ (import ./qemu-system-configuration.nix) ];
+    system = null; # Pass system parameters modularly
+    modules = [
+      (import ./qemu-system-configuration.nix)
+      ({ ... }: { nixpkgs.hostPlatform = hostPlatform; })
+    ];
   }).config;
 in
   makeDiskImage {
-- 
2.38.5