From 43c9825e49d25fbd2c19abcdeb8f73aee8be2a4c Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Wed, 14 May 2025 10:50:27 +0200
Subject: ...

---
 modules/installer.nix | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 modules/installer.nix

(limited to 'modules/installer.nix')

diff --git a/modules/installer.nix b/modules/installer.nix
new file mode 100644
index 00000000..3e5c6d5b
--- /dev/null
+++ b/modules/installer.nix
@@ -0,0 +1,56 @@
+{ flake, config, lib, pkgs, ... }:
+
+let
+  cfg = config.installer.links;
+
+  installerOutPath = {
+    "cd-dvd" = _: installerBuild: "${installerBuild.config.system.build.isoImage}/iso";
+    "netboot" = {system, variant}: installerBuild: pkgs.runCommandLocal "${system}-${variant}" {} ''
+      mkdir $out
+      install -m 0444 -t $out \
+        ${installerBuild.config.system.build.netbootRamdisk}/initrd \
+        ${installerBuild.config.system.build.kernel}/${config.system.boot.loader.kernelFile} \
+        ${installerBuild.config.system.build.netbootIpxeScript}/netboot.ipxe \
+        ${pkgs.ipxe.override {
+          additionalTargets = {
+            "bin-i386-efi/ipxe.efi" = "i386-ipxe.efi";
+          };
+          additionalOptions = [
+            "NSLOOKUP_CMD"
+            "PING_CMD"
+            "CONSOLE_CMD"
+          ];
+          embedScript = pkgs.writeText "netboot.ipxe" ''
+            #!ipxe
+
+            chain netboot.ipxe
+          '';
+        }}/{ipxe.efi,i386-ipxe.efi,ipxe.lkrn}
+    '';
+  };
+in {
+  options = {
+    installer.links = lib.mkOption {
+      type = lib.types.listOf (lib.types.submodule {
+        options = {
+          system = lib.mkOption {
+            type = lib.types.str;
+          };
+          variant = lib.mkOption {
+            type = lib.types.str;
+          };
+        };
+      });
+      default = [];
+    };
+  };
+
+  config = lib.mkIf (cfg != []) {
+    systemd.tmpfiles.rules = map (installer'@{system, variant}:
+      let
+        installer = "${system}-${variant}";
+        installerBuild = builtins.addErrorContext "while evaluating installer-${installer}" flake.nixosConfigurations.${"installer-${installer}"};
+      in "L+ /run/installer-${installer} - - - - ${installerOutPath.${variant} installer' installerBuild}"
+    ) cfg;
+  };
+}
-- 
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