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;;; guix-license.el --- Licenses
;; Copyright © 2016 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
;; GNU Guix is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Guix is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides the code to work with licenses of Guix packages.
;;; Code:
(require 'guix-read)
(require 'guix-backend)
(require 'guix-guile)
(defun guix-lookup-license-url (license)
"Return URL of a LICENSE."
(or (guix-eval-read (guix-make-guile-expression
'lookup-license-uri license))
(error "Hm, I don't know URL of '%s' license" license)))
;;;###autoload
(defun guix-browse-license-url (license)
"Browse URL of a LICENSE."
(interactive (list (guix-read-license-name)))
(browse-url (guix-lookup-license-url license)))
(provide 'guix-license)
;;; guix-license.el ends here
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