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80 lines
2.8 KiB
EmacsLisp
80 lines
2.8 KiB
EmacsLisp
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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
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