diff options
| -rw-r--r-- | emacs.am | 3 | ||||
| -rw-r--r-- | emacs/guix-license.el | 44 | ||||
| -rw-r--r-- | emacs/guix-main.scm | 30 | ||||
| -rw-r--r-- | emacs/guix-read.el | 11 |
4 files changed, 86 insertions, 2 deletions
diff --git a/emacs.am b/emacs.am index d0d4dfb9bd..6af9596ce9 100644 --- a/emacs.am +++ b/emacs.am @@ -1,5 +1,5 @@ # GNU Guix --- Functional package management for GNU -# Copyright © 2014, 2015 Alex Kost <alezost@gmail.com> +# Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com> # # This file is part of GNU Guix. # @@ -37,6 +37,7 @@ ELFILES = \ emacs/guix-hydra-jobset.el \ emacs/guix-info.el \ emacs/guix-init.el \ + emacs/guix-license.el \ emacs/guix-list.el \ emacs/guix-messages.el \ emacs/guix-pcomplete.el \ diff --git a/emacs/guix-license.el b/emacs/guix-license.el new file mode 100644 index 0000000000..940f5518e2 --- /dev/null +++ b/emacs/guix-license.el @@ -0,0 +1,44 @@ +;;; 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 diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm index 236c882e3c..0aee206a15 100644 --- a/emacs/guix-main.scm +++ b/emacs/guix-main.scm @@ -1042,3 +1042,33 @@ Return #t if the shell command was executed successfully." ;; See the comment to 'guix-package-names' function in "guix-popup.el". (define (package-names-lists) (map list (package-names))) + + +;;; Licenses + +(define %licenses + (delay + (filter license? + (module-map (lambda (_ var) + (variable-ref var)) + (resolve-interface '(guix licenses)))))) + +(define (licenses) + (force %licenses)) + +(define (license-names) + "Return a list of names of available licenses." + (map license-name (licenses))) + +(define lookup-license + (memoize + (lambda (name) + "Return a license by its name." + (find (lambda (l) + (string=? name (license-name l))) + (licenses))))) + +(define (lookup-license-uri name) + "Return a license URI by its name." + (and=> (lookup-license name) + license-uri)) diff --git a/emacs/guix-read.el b/emacs/guix-read.el index 3bc7b16587..a1a6b86364 100644 --- a/emacs/guix-read.el +++ b/emacs/guix-read.el @@ -1,6 +1,6 @@ ;;; guix-read.el --- Minibuffer readers -;; Copyright © 2015 Alex Kost <alezost@gmail.com> +;; Copyright © 2015, 2016 Alex Kost <alezost@gmail.com> ;; This file is part of GNU Guix. @@ -58,6 +58,10 @@ 'package-names-lists))) #'string<)) +(guix-memoized-defun guix-license-names () + "Return a list of names of available licenses." + (guix-eval-read (guix-make-guile-expression 'license-names))) + ;;; Readers @@ -122,6 +126,11 @@ :multiple-prompt "Package,s: " :multiple-separator " ") +(guix-define-readers + :completions-getter guix-license-names + :single-reader guix-read-license-name + :single-prompt "License: ") + (provide 'guix-read) ;;; guix-read.el ends here |