From 1a20f75b57ffcd4e7a386e316db402a726fcaa60 Mon Sep 17 00:00:00 2001
From: Snoweuph <snow@euph.email>
Date: Sat, 11 Apr 2026 17:06:06 +0200
Subject: [PATCH] lsp/presets/r-languageserver: init

---
 modules/plugins/lsp/presets/default.nix       |  1 +
 .../plugins/lsp/presets/r-languageserver.nix  | 37 +++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 modules/plugins/lsp/presets/r-languageserver.nix

diff --git a/modules/plugins/lsp/presets/default.nix b/modules/plugins/lsp/presets/default.nix
index 6bf89a6d..ee705924 100644
--- a/modules/plugins/lsp/presets/default.nix
+++ b/modules/plugins/lsp/presets/default.nix
@@ -3,6 +3,7 @@
     ./deno.nix
     ./harper.nix
     ./lemminx.nix
+    ./r-languageserver.nix
     ./ruby-lsp.nix
     ./solargraph.nix
     ./sqls.nix
diff --git a/modules/plugins/lsp/presets/r-languageserver.nix b/modules/plugins/lsp/presets/r-languageserver.nix
new file mode 100644
index 00000000..9e83eecd
--- /dev/null
+++ b/modules/plugins/lsp/presets/r-languageserver.nix
@@ -0,0 +1,37 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (lib.meta) getExe;
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkEnableOption;
+  inherit (lib.generators) mkLuaInline;
+
+  cfg = config.vim.lsp.presets.r-languageserver;
+in {
+  options.vim.lsp.presets.r-languageserver = {
+    enable = mkEnableOption "the R Language Server";
+  };
+
+  config = mkIf cfg.enable {
+    vim.lsp.servers.r-languageserver = {
+      enable = true;
+      cmd = [
+        (getExe (pkgs.rWrapper.override {
+          packages = [pkgs.rPackages.languageserver];
+        }))
+        "--no-echo"
+        "-e"
+        "languageserver::run()"
+      ];
+      root_markers = [".git"];
+      root_dir = mkLuaInline ''
+        function(bufnr, on_dir)
+          on_dir(vim.fs.root(bufnr, '.git') or vim.uv.os_homedir())
+        end
+      '';
+    };
+  };
+}