nixos/udev: verify udev rules with udevadm (#406284)

Author: K900

nixos/modules/services/hardware/udev.nix

@@ -55,6 +55,13 @@ let
         preferLocalBuild = true;
         allowSubstitutes = false;
         packages = lib.unique (map toString udevPackages);
+
+        nativeBuildInputs = [
+          # We only include the out output here to avoid needing to include all
+          # other outputs in the installer tests as well
+          # We only need the udevadm command anyway
+          pkgs.systemdMinimal.out
+        ];
       }
       ''
         mkdir -p $out
@@ -147,6 +154,11 @@ let
           exit 1
         fi
 
+        # Verify all the udev rules
+        echo "Verifying udev rules using udevadm verify..."
+        udevadm verify --resolve-names=never --no-style $out
+        echo "OK"
+
         # If auto-configuration is disabled, then remove
         # udev's 80-drivers.rules file, which contains rules for
         # automatically calling modprobe.

nixos/tests/installer.nix

@@ -681,7 +681,7 @@ let
         {
           # The configuration of the system used to run "nixos-install".
           installer =
-            { config, ... }:
+            { config, pkgs, ... }:
             {
               imports = [
                 commonConfig
@@ -740,6 +740,11 @@ let
                   xorg.lndir
                   shellcheck-minimal
 
+                  # Only the out output is included here, which is what is
+                  # required to build the NixOS udev rules
+                  # See the comment in services/hardware/udev.nix
+                  systemdMinimal.out
+
                   # add curl so that rather than seeing the test attempt to download
                   # curl's tarball, we see what it's trying to download
                   curl