;;; guix-emacs.el --- Emacs packages installed with Guix ;; Copyright © 2014 Alex Kost <alezost@gmail.com> ;; This file is part of GNU Guix. ;; GNU Guix 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. ;; GNU Guix 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 <http://www.gnu.org/licenses/>. ;;; Commentary: ;; This file provides auxiliary code for working with Emacs packages ;; installed with Guix. ;;; Code: (require 'guix-profiles) (defcustom guix-emacs-activate-after-operation t "Activate Emacs packages after installing. If nil, do not load autoloads of the Emacs packages after they are successfully installed." :type 'boolean :group 'guix) (defvar guix-emacs-autoloads nil "List of the last loaded Emacs autoloads.") (defun guix-emacs-directory (&optional profile) "Return directory with Emacs packages installed in PROFILE. If PROFILE is nil, use `guix-user-profile'." (expand-file-name "share/emacs/site-lisp" (or profile guix-user-profile))) (defun guix-emacs-find-autoloads (&optional profile) "Return list of autoloads of Emacs packages installed in PROFILE. If PROFILE is nil, use `guix-user-profile'. Return nil if there are no emacs packages installed in PROFILE." (let ((dir (guix-emacs-directory profile))) (if (file-directory-p dir) (directory-files dir 'full-name "-autoloads\\.el\\'") (message "Directory '%s' does not exist." dir) nil))) ;;;###autoload (defun guix-emacs-load-autoloads (&optional all) "Load autoloads for Emacs packages installed in a user profile. If ALL is nil, activate only those packages that were installed after the last activation, otherwise activate all Emacs packages installed in `guix-user-profile'." (interactive "P") (let* ((autoloads (guix-emacs-find-autoloads)) (files (if all autoloads (cl-nset-difference autoloads guix-emacs-autoloads :test #'string=)))) (dolist (file files) (load file 'noerror)) (setq guix-emacs-autoloads autoloads))) (defun guix-emacs-load-autoloads-maybe () "Load autoloads for Emacs packages if needed. See `guix-emacs-activate-after-operation' for details." (and guix-emacs-activate-after-operation (guix-emacs-load-autoloads))) (provide 'guix-emacs) ;;; guix-emacs.el ends here