Files
emacs-gdscript-mode/gdscript-eglot.el
2024-11-05 07:15:28 +00:00

83 lines
2.8 KiB
EmacsLisp

;;; gdscript-eglot.el --- Integration with eglot -*- lexical-binding: t; -*-
;;
;; Copyright (C) 2023 GDQuest and contributors
;;
;; Author: Ruijie Yu <ruijie@netyu.xyz>
;; URL: https://github.com/godotengine/emacs-gdscript-mode/
;; Version: 1.0.0
;; Package-Requires: ((emacs "26.3"))
;; Maintainer: nathan@gdquest.com
;; Created: June 2020
;; Keywords: languages
;;
;; This file is not part of GNU Emacs.
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;
;;; Commentary:
;;
;; Handles the configuraiton of eglot.
;; This supports `gdscript-mode' using `eglot'.
;;
;;; Code:
;;;###autoload
(defgroup gdscript-eglot nil
"Configurations in gdscript related to `eglot'."
:group 'gdscript)
;;;###autoload
(defcustom gdscript-eglot-version "4.3"
"The version of godot in use."
:type 'string)
(defun gdscript-eglot--get-config-dir ()
(pcase system-type
('darwin "~/Library/Application Support/Godot/")
('windows-nt (substitute-in-file-name "$APPDATA/Godot/"))
('gnu/linux (file-name-concat
(or (getenv "XDG_CONFIG_HOME") "~/.config/")
"godot"))))
(defun gdscript-eglot--extract-port (editor-settings-file)
(when (file-exists-p editor-settings-file)
(with-temp-buffer
(insert-file-contents editor-settings-file)
(when (re-search-forward
(rx "network/language_server/remote_port"
(* space) ?= (* space)
(group (+ digit)))
nil t)
(string-to-number (match-string 1))))))
;;;###autoload
(defun gdscript-eglot-contact (_interactive)
"Attempt to help `eglot' contact the running gdscript LSP.
Returns a list (HOST PORT) if successful, nil otherwise. See the
last definition of CONTACT in `eglot-server-programs' for
definitions of HOST, PORT, and INTERACTIVE.
For more context, see
https://lists.gnu.org/archive/html/bug-gnu-emacs/2023-04/msg01070.html."
(save-excursion
(let* ((config-dir (gdscript-eglot--get-config-dir))
(settings-file (file-name-concat
config-dir
(format "editor_settings-%s.tres" gdscript-eglot-version))))
(when-let ((port (gdscript-eglot--extract-port settings-file)))
(list "localhost" port)))))
(provide 'gdscript-eglot)
;;; gdscript-eglot.el ends here.