nixos/home/routing-common: Move mstpd config to separate file

nixos/boxes/home/routing-common/default.nix

@@ -59,27 +59,18 @@ in
       let
         inherit (lib) mkIf mkMerge mkForce;
         inherit (lib.my) networkdAssignment;
-
-        # TODO: Move into nixpkgs
-        mstpd = pkgs.mstpd.overrideAttrs {
-          patches = [ ./mstpd.patch ];
-        };
       in
       {
-        imports = [ (import ./dns.nix index) ];
+        imports = map (m: import m index) [
+          ./mstpd.nix
+          ./dns.nix
+        ];
 
         config = {
           environment = {
-            systemPackages = [
-              pkgs.ethtool
-              mstpd
+            systemPackages = with pkgs; [
+              ethtool
             ];
-            etc = {
-              "bridge-stp.conf".text = ''
-                MANAGE_MSTPD=n
-                MSTP_BRIDGES=lan
-              '';
-            };
           };
 
           services = {
@@ -95,43 +86,11 @@ in
               openFirewall = true;
             };
 
-            networkd-dispatcher = {
-              enable = true;
-              rules = {
-                configure-mstpd = {
-                  onState = [ "routable" ];
-                  script = ''
-                    #!${pkgs.runtimeShell}
-                    if [ $IFACE = "lan" ]; then
-                      ${mstpd}/sbin/mstpctl setforcevers $IFACE rstp
-                    fi
-                  '';
-                };
-              };
-            };
+            networkd-dispatcher.enable = true;
           };
 
           networking.domain = "h.${pubDomain}";
 
-          systemd = {
-            services = {
-              mstpd = {
-                description = "MSTP daemon";
-                before = [ "network-pre.target" ];
-                serviceConfig = {
-                  Type = "forking";
-                  ExecStart = "${mstpd}/sbin/bridge-stp restart";
-                  ExecReload = "${mstpd}/sbin/bridge-stp restart_config";
-                  PIDFile = "/run/mstpd.pid";
-                  Restart = "always";
-                  PrivateTmp = true;
-                  ProtectHome = true;
-                };
-                wantedBy = [ "multi-user.target" ];
-              };
-            };
-          };
-
           systemd.network = {
             wait-online.enable = false;
             config = {

nixos/boxes/home/routing-common/mstpd.nix

@@ -0,0 +1,53 @@
+index: { lib, pkgs, ... }:
+let
+  # TODO: Move into nixpkgs
+  mstpd = pkgs.mstpd.overrideAttrs {
+    patches = [ ./mstpd.patch ];
+  };
+in
+{
+  environment = {
+    systemPackages = [
+      mstpd
+    ];
+    etc = {
+      "bridge-stp.conf".text = ''
+        MANAGE_MSTPD=n
+        MSTP_BRIDGES=lan
+      '';
+    };
+  };
+
+  services = {
+    networkd-dispatcher.rules = {
+      configure-mstpd = {
+        onState = [ "routable" ];
+        script = ''
+          #!${pkgs.runtimeShell}
+          if [ $IFACE = "lan" ]; then
+            ${mstpd}/sbin/mstpctl setforcevers $IFACE rstp
+          fi
+        '';
+      };
+    };
+  };
+
+  systemd = {
+    services = {
+      mstpd = {
+        description = "MSTP daemon";
+        before = [ "network-pre.target" ];
+        serviceConfig = {
+          Type = "forking";
+          ExecStart = "${mstpd}/sbin/bridge-stp restart";
+          ExecReload = "${mstpd}/sbin/bridge-stp restart_config";
+          PIDFile = "/run/mstpd.pid";
+          Restart = "always";
+          PrivateTmp = true;
+          ProtectHome = true;
+        };
+        wantedBy = [ "multi-user.target" ];
+      };
+    };
+  };
+}