lsp/presets/r-languageserver: init

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

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
+      '';
+    };
+  };
+}