004ea62955
Fixes <http://bugs.gnu.org/22550>. Reported by myglc2 <myglc2@gmail.com>. * emacs/guix-emacs.el (guix-emacs-autoload-packages): Autoload Emacs packages installed in a system profile.
123 lines
4.7 KiB
EmacsLisp
123 lines
4.7 KiB
EmacsLisp
;;; guix-emacs.el --- Emacs packages installed with Guix
|
|
|
|
;; Copyright © 2014, 2015, 2016 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 'cl-lib)
|
|
(unless (require 'guix-profiles nil t)
|
|
(defvar guix-user-profile (expand-file-name "~/.guix-profile")))
|
|
|
|
(defcustom guix-package-enable-at-startup t
|
|
"If non-nil, activate Emacs packages installed in a user profile.
|
|
Set this variable to nil before requiring `guix-emacs' file to
|
|
avoid loading autoloads of Emacs packages installed in
|
|
`guix-user-profile'."
|
|
:type 'boolean
|
|
:group 'guix)
|
|
|
|
(defvar guix-emacs-autoloads nil
|
|
"List of the last loaded Emacs autoloads.")
|
|
|
|
(defvar guix-emacs-autoloads-regexp
|
|
(rx (group (* any) "-autoloads")
|
|
".el" (zero-or-one "c") string-end)
|
|
"Regexp to match Emacs 'autoloads' file.")
|
|
|
|
(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 (directory)
|
|
"Return a list of Emacs 'autoloads' files in DIRECTORY.
|
|
The files in the list do not have extensions (.el, .elc)."
|
|
(cl-remove-duplicates
|
|
(delq nil
|
|
(mapcar (lambda (file)
|
|
(when (string-match guix-emacs-autoloads-regexp file)
|
|
(match-string 1 file)))
|
|
(directory-files directory 'full-name nil 'no-sort)))
|
|
:test #'string=))
|
|
|
|
(defun guix-emacs-subdirs (directory)
|
|
"Return list of DIRECTORY subdirectories."
|
|
(cl-remove-if (lambda (file)
|
|
(or (string-match-p (rx "/." string-end) file)
|
|
(string-match-p (rx "/.." string-end) file)
|
|
(not (file-directory-p file))))
|
|
(directory-files directory 'full-name nil 'no-sort)))
|
|
|
|
(defun guix-emacs-directories (&optional profile)
|
|
"Return the list of directories under PROFILE that contain Emacs packages.
|
|
This includes both `share/emacs/site-lisp/guix.d/PACKAGE'
|
|
sub-directories and `share/emacs/site-lisp' itself.
|
|
|
|
If PROFILE is nil, use `guix-user-profile'.
|
|
Return nil, if Emacs packages are not installed in PROFILE."
|
|
(let ((root-dir (guix-emacs-directory (or profile guix-user-profile))))
|
|
(when (file-directory-p root-dir)
|
|
(let* ((pkgs-dir (expand-file-name "guix.d" root-dir))
|
|
(pkgs-dirs (when (file-directory-p pkgs-dir)
|
|
(guix-emacs-subdirs pkgs-dir))))
|
|
(cons root-dir pkgs-dirs)))))
|
|
|
|
;;;###autoload
|
|
(defun guix-emacs-autoload-packages (&rest profiles)
|
|
"Autoload Emacs packages installed in PROFILES.
|
|
If PROFILES are not specified, use a default user and system
|
|
profiles.
|
|
|
|
'Autoload' means add directories with Emacs packages to
|
|
`load-path' and load 'autoloads' files matching
|
|
`guix-emacs-autoloads-regexp'."
|
|
(interactive (list (if (fboundp 'guix-profile-prompt)
|
|
(funcall 'guix-profile-prompt)
|
|
guix-user-profile)))
|
|
(let ((profiles (or profiles
|
|
(list "/run/current-system/profile"
|
|
guix-user-profile))))
|
|
(dolist (profile profiles)
|
|
(let ((dirs (guix-emacs-directories profile)))
|
|
(when dirs
|
|
(let* ((autoloads (cl-mapcan #'guix-emacs-find-autoloads
|
|
dirs))
|
|
(new-autoloads (cl-nset-difference autoloads
|
|
guix-emacs-autoloads
|
|
:test #'string=)))
|
|
(dolist (dir dirs)
|
|
(cl-pushnew (directory-file-name dir)
|
|
load-path
|
|
:test #'string=))
|
|
(dolist (file new-autoloads)
|
|
(load file 'noerror))
|
|
(setq guix-emacs-autoloads
|
|
(append new-autoloads guix-emacs-autoloads))))))))
|
|
|
|
(when guix-package-enable-at-startup
|
|
(guix-emacs-autoload-packages))
|
|
|
|
(provide 'guix-emacs)
|
|
|
|
;;; guix-emacs.el ends here
|