* emacs/guix-emacs.el: New file. * emacs.am (ELFILES): Add it. * emacs/guix-backend.el (guix-after-repl-operation-hook): Add 'guix-emacs-load-autoloads-maybe'. * emacs/guix-init.el.in: Autoload emacs packages. (guix-package-enable-at-startup): New variable.
		
			
				
	
	
		
			79 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
			
		
		
	
	
			79 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			EmacsLisp
		
	
	
	
	
	
;;; 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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