formatter/conform-nvim/emacs: init

Author: snoweuph

docs/manual/release-notes/rl-26.12.md

@@ -49,6 +49,8 @@
 
 - `formatter/conform-nvim/presets/sblc`: initialize.
 
+- `formatter/conform-nvim/presets/emacs`: initialize.
+
 [gmvar](https://github.com/gmvar):
 
 [beancount-language-server]: https://github.com/polarmutex/beancount-language-server

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

@@ -18,6 +18,7 @@
     ./deno.nix
     ./djlint.nix
     ./dockerfmt.nix
+    ./emacs.nix
     ./fantomas.nix
     ./fish-indent.nix
     ./floskell.nix

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

@@ -0,0 +1,39 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (lib.nvim.types) mkFormatterPresetEnableOption;
+  inherit (lib.meta) getExe;
+
+  cfg = config.vim.formatter.conform-nvim.presets.emacs;
+in {
+  options.vim.formatter.conform-nvim.presets.emacs = {
+    enable = mkFormatterPresetEnableOption {
+      option = "emacs";
+      display = "Emacs";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    vim.formatter.conform-nvim.setupOpts.formatters.emacs = {
+      command = getExe pkgs.emacs-nox;
+      args = [
+        "--batch"
+        "--eval"
+        # elisp
+        ''
+          (let ((file (car command-line-args-left)))
+            (with-current-buffer (find-file-noselect file)
+              (lisp-mode)
+              (indent-region (point-min) (point-max))
+              (save-buffer)))
+        ''
+        "$FILENAME"
+      ];
+      stdin = false;
+    };
+  };
+}

modules/plugins/languages/lisp.nix

@@ -12,8 +12,8 @@
 
   cfg = config.vim.languages.lisp;
 
-  defaultFormat = ["sbcl"];
-  formats = ["sbcl" "injected"];
+  defaultFormat = ["emacs"];
+  formats = ["sbcl" "emacs" "injected"];
 in {
   options.vim.languages.lisp = {
     enable = mkEnableOption "Lisp support";