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on 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-license-file (&optional directory) "Return name of the file with license definitions. DIRECTORY is a directory with Guix source (`guix-directory' by default)." (expand-file-name "guix/licenses.scm" (or directory guix-directory))) (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-find-license-definition (license &optional directory) "Open licenses file from DIRECTORY and move to the LICENSE definition. See `guix-license-file' for the meaning of DIRECTORY. Interactively, with prefix argument, prompt for DIRECTORY." (interactive (list (guix-read-license-name) (guix-read-directory))) (find-file (guix-license-file directory)) (goto-char (point-min)) (when (re-search-forward (concat "\"" (regexp-quote license) "\"") nil t) (beginning-of-defun) (recenter 1))) ;;;###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