emacs: Add 'guix-browse-license-url' command.

* emacs/guix-main.scm (%licenses): New variable.
(licenses, license-names, lookup-license, lookup-license-uri): New
procedures.
* emacs/guix-read.el (guix-license-names, guix-read-license-name): New
procedures.
* emacs/guix-license.el: New file.
(guix-lookup-license-url): New procedure.
(guix-browse-license-url): New command.
* emacs.am (ELFILES): Add new file.

1 files changed, 10 insertions, 1 deletions

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