emacs: Make "guix-emacs.el" independent.

"guix-emacs.el" may be used just for "instructing" Emacs where to find
Emacs packages installed with Guix, so it should have as few
dependencies as possible.

See <http://lists.gnu.org/archive/html/guix-devel/2016-01/msg00022.html>.

* emacs/guix-emacs.el: Require 'guix-profiles' optionally.
  (guix-emacs-load-autoloads): Use 'guix-profile-prompt' only if it is
  available.
This commit is contained in:
Alex Kost 2016-01-02 16:52:39 +03:00
parent 08207339aa
commit e4e2154644

View file

@ -1,6 +1,6 @@
;;; guix-emacs.el --- Emacs packages installed with Guix
;; Copyright © 2014 Alex Kost <alezost@gmail.com>
;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
@ -24,8 +24,9 @@
;;; Code:
(require 'guix-profiles)
(require 'cl-lib)
(unless (require 'guix-profiles nil t)
(defvar guix-user-profile (expand-file-name "~/.guix-profile")))
(defcustom guix-emacs-activate-after-operation t
"Activate Emacs packages after installing.
@ -90,7 +91,9 @@ Return nil if there are no emacs packages installed in PROFILE."
"Load autoloads for Emacs packages installed in PROFILE.
If PROFILE is nil, use `guix-user-profile'.
Add autoloads directories to `load-path'."
(interactive (list (guix-profile-prompt)))
(interactive (list (if (fboundp 'guix-profile-prompt)
(funcall 'guix-profile-prompt)
guix-user-profile)))
(let* ((autoloads (guix-emacs-find-autoloads profile))
(new-autoloads (cl-nset-difference autoloads
guix-emacs-autoloads