diagnostics/nvim-lint: enable autocmd only if nvim-lint is enabled

fix(formatter/conform-nvim): allow disabling format on/after save

docs/release-notes/rl-0.8.md

@@ -235,8 +235,9 @@
 
 [alfarel](https://github.com/alfarelcynthesis):
 
-- Add missing `yazi.nvim` dependency (`snacks.nvim`).
+[conform.nvim]: https://github.com/stevearc/conform.nvim
 
+- Add missing `yazi.nvim` dependency (`snacks.nvim`).
 - Add [mkdir.nvim](https://github.com/jghauser/mkdir.nvim) plugin for automatic
   creation of parent directories when editing a nested file.
 - Add [nix-develop.nvim](https://github.com/figsoda/nix-develop.nvim) plugin for
@@ -248,6 +249,8 @@
   [friendly-snippets](https://github.com/rafamadriz/friendly-snippets) so
   blink.cmp can source snippets from it.
 - Fix [blink.cmp] breaking when built-in sources were modified.
+- Fix [conform.nvim] not allowing disabling formatting on and after save.
+  Use `null` value to disable them if conform is enabled.
 
 [TheColorman](https://github.com/TheColorman):
 

modules/plugins/diagnostics/nvim-lint/config.nix

@@ -31,7 +31,7 @@ in {
         '';
       };
     })
-    (mkIf cfg.lint_after_save {
+    (mkIf (cfg.enable && cfg.lint_after_save) {
       vim = {
         augroups = [{name = "nvf_nvim_lint";}];
         autocmds = [

modules/plugins/formatter/conform-nvim/conform-nvim.nix

@@ -4,7 +4,7 @@
   ...
 }: let
   inherit (lib.options) mkOption mkEnableOption literalExpression;
-  inherit (lib.types) attrs enum;
+  inherit (lib.types) attrs enum nullOr;
   inherit (lib.nvim.types) mkPluginSetupOption;
   inherit (lib.nvim.lua) mkLuaInline;
 in {
@@ -31,7 +31,7 @@ in {
       };
 
       format_on_save = mkOption {
-        type = attrs;
+        type = nullOr attrs;
         default = {
           lsp_format = "fallback";
           timeout_ms = 500;
@@ -43,7 +43,7 @@ in {
       };
 
       format_after_save = mkOption {
-        type = attrs;
+        type = nullOr attrs;
         default = {lsp_format = "fallback";};
         description = ''
           Table that will be passed to `conform.format()`. If this