Regenerated

Droidnix/README.org

@@ -378,30 +378,35 @@ let
 
   moduleSwitches = import ../../../assets/system/conf/modules.conf;
 
+  # STEP 1: evaluate all modules
   evaluatedModules =
-    map (m:
-      if builtins.isFunction m then m { inherit lib config; } else m
-    ) imported.imports;
+    map (m: if builtins.isFunction m then m { inherit lib config; } else m) imported.imports;
 
+  # STEP 2: attach names safely
   modulesWithNames =
     map (m: {
       name = if m ? _file then builtins.replaceSuffix ".nix" "" (builtins.baseNameOf m._file) else "unknown";
       value = m;
     }) evaluatedModules;
 
-  enabledModules =
-    builtins.filter (m: moduleSwitches.${m.name} or false) modulesWithNames;
-
-  moduleList = map (m: m.value) enabledModules;
+  # STEP 3: filter enabled modules
+  enabledModules = builtins.filter (m: moduleSwitches.${m.name} or false) modulesWithNames;
 
+  # STEP 4: build debug string
   debugContents = builtins.concatStringsSep "\n"
     (map (m: "${m.name} (${builtins.toString (builtins.length (builtins.attrNames m.value))} attrs)") enabledModules);
 
-  # write debug file on host
-  debugFile = pkgs.writeTextFile {
-    name = "traveldroid-modules-debug";
-    text = debugContents;
-  };
+  # STEP 5: force evaluation to print to screen
+  _ = builtins.trace ("==== Enabled modules (" + toString (builtins.length enabledModules) + ") ====\n" + debugContents) true;
+
+  # STEP 6: write to host /tmp during build
+  hostDebugFile = pkgs.runCommand "traveldroid-modules-debug-host" {
+    buildInputs = [ pkgs.coreutils ];
+  } ''
+    echo "${debugContents}" > /tmp/traveldroid-modules-debug.txt
+    mkdir -p $out
+    touch $out/dummy
+  '';
 
 in
 {
@@ -413,16 +418,13 @@ in
     ./hardware-configuration.nix
   ];
 
-  home-manager.users = lib.mkMerge (
-    # force evaluation so that trace prints
-    map (m:
-      let _ = builtins.trace ("Module loaded: " + m.name) true;
-      in m.value
-    ) enabledModules
-  );
+  home-manager.users = lib.mkMerge (map (m: m.value) enabledModules);
 
-  # create the debug file
-  environment.etc."traveldroid-modules-debug.txt".source = debugFile;
+  # Write debug file inside VM
+  environment.etc."traveldroid-modules-debug.txt".text = debugContents;
+
+  # Ensure host-side debug file is built
+  system.build.hostDebugDummy = hostDebugFile;
 }
 #+END_SRC