Merge pull request #568 from samueldr-wip/feature/installer-boot-closure

examples/installer: Add boot closure to installer

examples/installer/modules/all.nix

@@ -1,6 +1,7 @@
 {
   imports = [
     ./adb.nix
+    ./boot-closure.nix
     ./filesystems.nix
     ./installer-gui.nix
     ./installer-script.nix

examples/installer/modules/boot-closure.nix

@@ -0,0 +1,30 @@
+{ config, lib, ... }:
+
+let
+  inherit (lib)
+    mkIf
+    optionalString
+  ;
+  inherit (config.mobile)
+    system
+  ;
+in
+{
+  # Pins pre-built artifacts within the system closure that are going to be
+  # used by the installer.
+  system.extraSystemBuilderCmds = ''
+    echo ":: Adding pre-built boot files to closure..."
+    (
+      PS4=" $ "; set -x
+      mkdir -p $out/mobile-nixos-installer
+      cd $out/mobile-nixos-installer
+      ln -s ${config.mobile.boot.stage-1.kernel.package} kernel
+      ${optionalString (system.type == "depthcharge") ''
+        ln -s ${config.mobile.outputs.depthcharge.kpart} kpart
+      ''}
+      ${optionalString (system.type == "u-boot") ''
+        ln -s ${config.mobile.outputs.u-boot.boot-partition} boot-partition
+      ''}
+    )
+  '';
+}