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;;; guix-emacs.el --- Emacs packages installed with Guix |
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;; Copyright © 2014 Alex Kost <alezost@gmail.com> |
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;; This file is part of GNU Guix. |
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;; GNU Guix is free software; you can redistribute it and/or modify |
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;; it under the terms of the GNU General Public License as published by |
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;; the Free Software Foundation, either version 3 of the License, or |
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;; (at your option) any later version. |
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;; GNU Guix is distributed in the hope that it will be useful, |
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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;; GNU General Public License for more details. |
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;; You should have received a copy of the GNU General Public License |
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;; along with this program. If not, see <http://www.gnu.org/licenses/>. |
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;;; Commentary: |
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;; This file provides auxiliary code for working with Emacs packages |
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;; installed with Guix. |
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;;; Code: |
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(require 'guix-profiles) |
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(defcustom guix-emacs-activate-after-operation t |
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"Activate Emacs packages after installing. |
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If nil, do not load autoloads of the Emacs packages after |
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they are successfully installed." |
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:type 'boolean |
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:group 'guix) |
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(defvar guix-emacs-autoloads nil |
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"List of the last loaded Emacs autoloads.") |
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(defun guix-emacs-directory (&optional profile) |
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"Return directory with Emacs packages installed in PROFILE. |
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If PROFILE is nil, use `guix-user-profile'." |
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(expand-file-name "share/emacs/site-lisp" |
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(or profile guix-user-profile))) |
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(defun guix-emacs-find-autoloads (&optional profile) |
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"Return list of autoloads of Emacs packages installed in PROFILE. |
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If PROFILE is nil, use `guix-user-profile'. |
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Return nil if there are no emacs packages installed in PROFILE." |
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(let ((dir (guix-emacs-directory profile))) |
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(if (file-directory-p dir) |
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(directory-files dir 'full-name "-autoloads\\.el\\'") |
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(message "Directory '%s' does not exist." dir) |
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nil))) |
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;;;###autoload |
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(defun guix-emacs-load-autoloads (&optional all) |
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"Load autoloads for Emacs packages installed in a user profile. |
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If ALL is nil, activate only those packages that were installed |
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after the last activation, otherwise activate all Emacs packages |
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installed in `guix-user-profile'." |
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(interactive "P") |
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(let* ((autoloads (guix-emacs-find-autoloads)) |
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(files (if all |
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autoloads |
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(cl-nset-difference autoloads guix-emacs-autoloads |
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:test #'string=)))) |
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(dolist (file files) |
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(load file 'noerror)) |
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(setq guix-emacs-autoloads autoloads))) |
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(defun guix-emacs-load-autoloads-maybe () |
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"Load autoloads for Emacs packages if needed. |
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See `guix-emacs-activate-after-operation' for details." |
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(and guix-emacs-activate-after-operation |
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(guix-emacs-load-autoloads))) |
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(provide 'guix-emacs) |
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;;; guix-emacs.el ends here |