nixos/facter: add reportPath guard to all modules

Add lib.mkIf condition checking if config.hardware.facter.reportPath != null
to all facter modules. This shortcuts the module effects when no facter
report is available, preventing unnecessary evaluation and potential errors
when the report is not provided.

nixos/modules/hardware/facter/disk.nix

@@ -22,7 +22,7 @@ in
     '';
   };
 
-  config = {
+  config = lib.mkIf (config.hardware.facter.reportPath != null) {
     boot.initrd.availableKernelModules = config.hardware.facter.detected.boot.disk.kernelModules;
   };
 }

nixos/modules/hardware/facter/firmware.nix

@@ -8,7 +8,7 @@ let
   hasIntelCpu = facterLib.hasIntelCpu report;
 in
 {
-  config = lib.mkIf isBaremetal {
+  config = lib.mkIf (config.hardware.facter.reportPath != null && isBaremetal) {
     # none (e.g. bare-metal)
     # provide firmware for devices that might not have been detected by nixos-facter
     hardware.enableRedistributableFirmware = lib.mkDefault true;

nixos/modules/hardware/facter/graphics/amd.nix

@@ -12,7 +12,7 @@ in
       defaultText = "hardware dependent";
     };
   };
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf (config.hardware.facter.reportPath != null && cfg.enable) {
     services.xserver.videoDrivers = [ "modesetting" ];
   };
 }

nixos/modules/hardware/facter/graphics/default.nix

@@ -28,7 +28,7 @@ in
     };
   };
 
-  config = lib.mkIf cfg.enable (
+  config = lib.mkIf (config.hardware.facter.reportPath != null && cfg.enable) (
     {
       boot.initrd.kernelModules = config.hardware.facter.detected.boot.graphics.kernelModules;
     }

nixos/modules/hardware/facter/keyboard.nix

@@ -15,7 +15,7 @@ in
     '';
   };
 
-  config = {
+  config = lib.mkIf (config.hardware.facter.reportPath != null) {
     boot.initrd.availableKernelModules = config.hardware.facter.detected.boot.keyboard.kernelModules;
   };
 }

nixos/modules/hardware/facter/networking/default.nix

@@ -60,10 +60,12 @@ in
       ];
     };
   };
-  config = lib.mkIf config.hardware.facter.detected.dhcp.enable {
-    networking.useDHCP = lib.mkDefault true;
+  config =
+    lib.mkIf (config.hardware.facter.reportPath != null && config.hardware.facter.detected.dhcp.enable)
+      {
+        networking.useDHCP = lib.mkDefault true;
 
-    # Per-interface DHCP configuration
-    networking.interfaces = perInterfaceConfig;
-  };
+        # Per-interface DHCP configuration
+        networking.interfaces = perInterfaceConfig;
+      };
 }

nixos/modules/hardware/facter/networking/initrd.nix

@@ -14,7 +14,7 @@ in
     '';
   };
 
-  config = lib.mkIf config.boot.initrd.network.enable {
+  config = lib.mkIf (config.hardware.facter.reportPath != null && config.boot.initrd.network.enable) {
     boot.initrd.kernelModules = config.hardware.facter.detected.boot.initrd.networking.kernelModules;
   };
 }

nixos/modules/hardware/facter/networking/intel.nix

@@ -49,7 +49,7 @@ in
     };
   };
 
-  config = {
+  config = lib.mkIf (config.hardware.facter.reportPath != null) {
     networking.enableIntel2200BGFirmware = lib.mkIf cfg._2200BG.enable (lib.mkDefault true);
     hardware.enableRedistributableFirmware = lib.mkIf cfg._3945ABG.enable (lib.mkDefault true);
   };

nixos/modules/hardware/facter/system.nix

@@ -6,7 +6,7 @@
 }:
 {
   # Skip setting hostPlatform if it's read-only
-  nixpkgs =
+  config.nixpkgs =
     lib.optionalAttrs
       (config.hardware.facter.report.system or null != null && !options.nixpkgs.hostPlatform.readOnly)
       {

nixos/modules/hardware/facter/virtualisation.nix

@@ -51,7 +51,7 @@ in
     };
   };
 
-  config = {
+  config = lib.mkIf (config.hardware.facter.reportPath != null) {
 
     # KVM support
     boot.kernelModules =