Added workaround for nil configuration

modules/plugins/languages/nix.nix

@@ -4,7 +4,8 @@
   lib,
   inputs,
   ...
-}: let
+}:
+let
   inherit (builtins) attrNames;
   inherit (lib) concatStringsSep;
   inherit (lib.meta) getExe;
@@ -12,7 +13,16 @@
   inherit (lib.modules) mkIf mkMerge;
   inherit (lib.lists) isList;
   inherit (lib.strings) optionalString;
-  inherit (lib.types) anything attrsOf enum either listOf nullOr package str;
+  inherit (lib.types)
+    anything
+    attrsOf
+    enum
+    either
+    listOf
+    nullOr
+    package
+    str
+    ;
   inherit (lib.nvim.types) mkGrammarOption diagnostics;
   inherit (lib.nvim.lua) expToLua toLuaObject;
 
@@ -22,10 +32,9 @@
   noFormat = "on_attach = attach_keymaps";
 
   defaultServer = "nil";
-  packageToCmd = package: defaultCmd:
+  packageToCmd =
-    if isList package
+    package: defaultCmd:
-    then expToLua package
+    if isList package then expToLua package else ''{"${package}/bin/${defaultCmd}"}'';
-    else ''{"${package}/bin/${defaultCmd}"}'';
   servers = {
     nil = {
       package = inputs.nil.packages.${pkgs.stdenv.system}.nil;
@@ -33,27 +42,22 @@
       lspConfig = ''
         lspconfig.nil_ls.setup{
           capabilities = capabilities,
-        ${
+        ${if cfg.format.enable then useFormat else noFormat},
-          if cfg.format.enable
-          then useFormat
-          else noFormat
-        },
           cmd = ${packageToCmd cfg.lsp.package "nil"},
         ${optionalString cfg.format.enable ''
           settings = {
             ["nil"] = {
-          ${optionalString (cfg.format.type == "alejandra")
+          ${optionalString (cfg.format.type == "alejandra") ''
-            ''
             formatting = {
               command = {"${cfg.format.package}/bin/alejandra", "--quiet"},
             },
           ''}
-          ${optionalString (cfg.format.type == "nixfmt")
+          ${optionalString (cfg.format.type == "nixfmt") ''
-            ''
             formatting = {
               command = {"${cfg.format.package}/bin/nixfmt"},
             },
           ''}
+            nix = ${toLuaObject cfg.lsp.options},
             },
           },
         ''}
@@ -67,28 +71,22 @@
       lspConfig = ''
         lspconfig.nixd.setup{
           capabilities = capabilities,
-        ${
+        ${if cfg.format.enable then useFormat else noFormat},
-          if cfg.format.enable
-          then useFormat
-          else noFormat
-        },
           cmd = ${packageToCmd cfg.lsp.package "nixd"},
         ${optionalString cfg.format.enable ''
           settings = {
             nixd = {
-          ${optionalString (cfg.format.type == "alejandra")
+          ${optionalString (cfg.format.type == "alejandra") ''
-            ''
             formatting = {
               command = {"${cfg.format.package}/bin/alejandra", "--quiet"},
             },
           ''}
-          ${optionalString (cfg.format.type == "nixfmt")
+          ${optionalString (cfg.format.type == "nixfmt") ''
-            ''
             formatting = {
               command = {"${cfg.format.package}/bin/nixfmt"},
             },
           ''}
-          options = ${toLuaObject cfg.lsp.options},
+            nix = ${toLuaObject cfg.lsp.options},
             },
           },
         ''}
@@ -108,7 +106,10 @@
     };
   };
 
-  defaultDiagnosticsProvider = ["statix" "deadnix"];
+  defaultDiagnosticsProvider = [
+    "statix"
+    "deadnix"
+  ];
   diagnosticsProviders = {
     statix = {
       package = pkgs.statix;
@@ -134,17 +135,22 @@
       '';
     };
   };
-in {
+in
+{
   options.vim.languages.nix = {
     enable = mkEnableOption "Nix language support";
 
     treesitter = {
-      enable = mkEnableOption "Nix treesitter" // {default = config.vim.languages.enableTreesitter;};
+      enable = mkEnableOption "Nix treesitter" // {
+        default = config.vim.languages.enableTreesitter;
+      };
       package = mkGrammarOption pkgs "nix";
     };
 
     lsp = {
-      enable = mkEnableOption "Nix LSP support" // {default = config.vim.lsp.enable;};
+      enable = mkEnableOption "Nix LSP support" // {
+        default = config.vim.lsp.enable;
+      };
       server = mkOption {
         description = "Nix LSP server to use";
         type = enum (attrNames servers);
@@ -166,7 +172,9 @@ in {
     };
 
     format = {
-      enable = mkEnableOption "Nix formatting" // {default = config.vim.languages.enableFormat;};
+      enable = mkEnableOption "Nix formatting" // {
+        default = config.vim.languages.enableFormat;
+      };
 
       type = mkOption {
         description = "Nix formatter to use";
@@ -182,7 +190,9 @@ in {
     };
 
     extraDiagnostics = {
-      enable = mkEnableOption "extra Nix diagnostics" // {default = config.vim.languages.enableExtraDiagnostics;};
+      enable = mkEnableOption "extra Nix diagnostics" // {
+        default = config.vim.languages.enableExtraDiagnostics;
+      };
 
       types = diagnostics {
         langDesc = "Nix";
@@ -236,10 +246,11 @@ in {
       vim.diagnostics.nvim-lint = {
         enable = true;
         linters_by_ft.nix = cfg.extraDiagnostics.types;
-        linters = mkMerge (map (name: {
+        linters = mkMerge (
+          map (name: {
             ${name}.cmd = getExe diagnosticsProviders.${name}.package;
-          })
+          }) cfg.extraDiagnostics.types
-          cfg.extraDiagnostics.types);
+        );
       };
     })
   ]);