emacs/guix-license.el

   1 ;;; guix-license.el --- Licenses
   2
   3 ;; Copyright © 2016 Alex Kost <alezost@gmail.com>
   4
   5 ;; This file is part of GNU Guix.
   6
   7 ;; GNU Guix is free software; you can redistribute it and/or modify
   8 ;; it under the terms of the GNU General Public License as published by
   9 ;; the Free Software Foundation, either version 3 of the License, or
  10 ;; (at your option) any later version.
  11
  12 ;; GNU Guix is distributed in the hope that it will be useful,
  13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ;; GNU General Public License for more details.
  16
  17 ;; You should have received a copy of the GNU General Public License
  18 ;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 ;;; Commentary:
  21
  22 ;; This file provides the code to work with licenses of Guix packages.
  23
  24 ;;; Code:
  25
  26 (require 'guix-read)
  27 (require 'guix-backend)
  28 (require 'guix-guile)
  29
  30 (defun guix-lookup-license-url (license)
  31   "Return URL of a LICENSE."
  32   (or (guix-eval-read (guix-make-guile-expression
  33                        'lookup-license-uri license))
  34       (error "Hm, I don't know URL of '%s' license" license)))
  35
  36 ;;;###autoload
  37 (defun guix-browse-license-url (license)
  38   "Browse URL of a LICENSE."
  39   (interactive (list (guix-read-license-name)))
  40   (browse-url (guix-lookup-license-url license)))
  41
  42 (provide 'guix-license)
  43
  44 ;;; guix-license.el ends here