HCoop / jackhill / guix / guix.git / blame
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1 | ;;; guix-emacs.el --- Emacs packages installed with Guix |
| 2 | ||
| 3 | ;; Copyright © 2014 Alex Kost <alezost@gmail.com> | |
| 4 | ||
| 5 | ;; This file is part of GNU Guix. | |
| 6 | ||
| 7 | ;; GNU Guix is free software; you can redistribute it and/or modify | |
| 8 | ;; it under the terms of the GNU General Public License as published by | |
| 9 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 10 | ;; (at your option) any later version. | |
| 11 | ||
| 12 | ;; GNU Guix is distributed in the hope that it will be useful, | |
| 13 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | ;; GNU General Public License for more details. | |
| 16 | ||
| 17 | ;; You should have received a copy of the GNU General Public License | |
| 18 | ;; along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | ||
| 20 | ;;; Commentary: | |
| 21 | ||
| 22 | ;; This file provides auxiliary code for working with Emacs packages | |
| 23 | ;; installed with Guix. | |
| 24 | ||
| 25 | ;;; Code: | |
| 26 | ||
| 27 | (require 'guix-profiles) | |
| 28 | ||
| 29 | (defcustom guix-emacs-activate-after-operation t | |
| 30 | "Activate Emacs packages after installing. | |
| 31 | If nil, do not load autoloads of the Emacs packages after | |
| 32 | they are successfully installed." | |
| 33 | :type 'boolean | |
| 34 | :group 'guix) | |
| 35 | ||
| 36 | (defvar guix-emacs-autoloads nil | |
| 37 | "List of the last loaded Emacs autoloads.") | |
| 38 | ||
| 39 | (defun guix-emacs-directory (&optional profile) | |
| 40 | "Return directory with Emacs packages installed in PROFILE. | |
| 41 | If PROFILE is nil, use `guix-user-profile'." | |
| 42 | (expand-file-name "share/emacs/site-lisp" | |
| 43 | (or profile guix-user-profile))) | |
| 44 | ||
| 45 | (defun guix-emacs-find-autoloads (&optional profile) | |
| 46 | "Return list of autoloads of Emacs packages installed in PROFILE. | |
| 47 | If PROFILE is nil, use `guix-user-profile'. | |
| 48 | Return nil if there are no emacs packages installed in PROFILE." | |
| 49 | (let ((dir (guix-emacs-directory profile))) | |
| 50 | (if (file-directory-p dir) | |
| 51 | (directory-files dir 'full-name "-autoloads\\.el\\'") | |
| 52 | (message "Directory '%s' does not exist." dir) | |
| 53 | nil))) | |
| 54 | ||
| 55 | ;;;###autoload | |
| 56 | (defun guix-emacs-load-autoloads (&optional all) | |
| 57 | "Load autoloads for Emacs packages installed in a user profile. | |
| 58 | If ALL is nil, activate only those packages that were installed | |
| 59 | after the last activation, otherwise activate all Emacs packages | |
| 60 | installed in `guix-user-profile'." | |
| 61 | (interactive "P") | |
| 62 | (let* ((autoloads (guix-emacs-find-autoloads)) | |
| 63 | (files (if all | |
| 64 | autoloads | |
| 65 | (cl-nset-difference autoloads guix-emacs-autoloads | |
| 66 | :test #'string=)))) | |
| 67 | (dolist (file files) | |
| 68 | (load file 'noerror)) | |
| 69 | (setq guix-emacs-autoloads autoloads))) | |
| 70 | ||
| 71 | (defun guix-emacs-load-autoloads-maybe () | |
| 72 | "Load autoloads for Emacs packages if needed. | |
| 73 | See `guix-emacs-activate-after-operation' for details." | |
| 74 | (and guix-emacs-activate-after-operation | |
| 75 | (guix-emacs-load-autoloads))) | |
| 76 | ||
| 77 | (provide 'guix-emacs) | |
| 78 | ||
| 79 | ;;; guix-emacs.el ends here |