modules/lsp: move server module to dedicated file

modules/lsp/default.nix

@@ -4,57 +4,10 @@
   ...
 }:
 let
-  inherit (lib) mkOption types;
+  inherit (lib) types;
   inherit (lib.nixvim) toLuaObject;
 
   cfg = config.lsp;
-
-  serverType = types.submodule {
-    options = {
-      enable = lib.mkEnableOption "the language server";
-
-      activate = lib.mkOption {
-        type = types.bool;
-        description = ''
-          Whether to call `vim.lsp.enable()` for this server.
-        '';
-        default = true;
-        example = false;
-      };
-
-      package = lib.mkOption {
-        type = with types; nullOr package;
-        default = null;
-        description = ''
-          Package to use for this language server.
-
-          Alternatively, the language server should be available on your `$PATH`.
-        '';
-      };
-
-      config = mkOption {
-        type = with types; attrsOf anything;
-        description = ''
-          Configurations for each language server.
-        '';
-        default = { };
-        example = {
-          cmd = [
-            "clangd"
-            "--background-index"
-          ];
-          root_markers = [
-            "compile_commands.json"
-            "compile_flags.txt"
-          ];
-          filetypes = [
-            "c"
-            "cpp"
-          ];
-        };
-      };
-    };
-  };
 in
 {
   options.lsp = {
@@ -70,8 +23,8 @@ in
       enable = lib.mkEnableOption "inlay hints globally";
     };
 
-    servers = mkOption {
+    servers = lib.mkOption {
-      type = types.attrsOf serverType;
+      type = types.attrsOf (types.submodule ./server.nix);
       description = ''
         LSP servers to enable and/or configure.
 

modules/lsp/server.nix

@@ -0,0 +1,50 @@
+{ lib, ... }:
+let
+  inherit (lib) types;
+in
+{
+  options = {
+    enable = lib.mkEnableOption "the language server";
+
+    activate = lib.mkOption {
+      type = types.bool;
+      description = ''
+        Whether to call `vim.lsp.enable()` for this server.
+      '';
+      default = true;
+      example = false;
+    };
+
+    package = lib.mkOption {
+      type = with types; nullOr package;
+      default = null;
+      description = ''
+        Package to use for this language server.
+
+        Alternatively, the language server should be available on your `$PATH`.
+      '';
+    };
+
+    config = lib.mkOption {
+      type = with types; attrsOf anything;
+      description = ''
+        Configurations for each language server.
+      '';
+      default = { };
+      example = {
+        cmd = [
+          "clangd"
+          "--background-index"
+        ];
+        root_markers = [
+          "compile_commands.json"
+          "compile_flags.txt"
+        ];
+        filetypes = [
+          "c"
+          "cpp"
+        ];
+      };
+    };
+  };
+}