* emacs/guix-main.scm (license-names, license-name->license) (license-name->uri): New procedures. * emacs/guix-read.el (guix-license-names, guix-read-license-name): New procedures. * emacs/guix-license.el: New file. * emacs.am (ELFILES): Add it. --- emacs.am | 3 ++- emacs/guix-license.el | 44 ++++++++++++++++++++++++++++++++++++++++++++ emacs/guix-main.scm | 18 ++++++++++++++++++ emacs/guix-read.el | 11 ++++++++++- 4 files changed, 74 insertions(+), 2 deletions(-) create mode 100644 emacs/guix-license.el
diff --git a/emacs.am b/emacs.am index d0d4dfb..6af9596 100644 --- a/emacs.am +++ b/emacs.am @@ -1,5 +1,5 @@ # GNU Guix --- Functional package management for GNU -# Copyright © 2014, 2015 Alex Kost <alez...@gmail.com> +# Copyright © 2014, 2015, 2016 Alex Kost <alez...@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 0000000..a28b45e --- /dev/null +++ b/emacs/guix-license.el @@ -0,0 +1,44 @@ +;;; guix-license.el --- Licenses + +;; Copyright © 2016 Alex Kost <alez...@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-license-name->url (license) + "Return URL of a LICENSE." + (or (guix-eval-read (guix-make-guile-expression + 'license-name->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-license-name->url license))) + +(provide 'guix-license) + +;;; guix-license.el ends here diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm index 236c882..7706921 100644 --- a/emacs/guix-main.scm +++ b/emacs/guix-main.scm @@ -1042,3 +1042,21 @@ 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 (license-names) + "Return a list of names of available licenses." + (map license-name %licenses)) + +(define license-name->license + (memoize + (lambda (name) + (find (lambda (l) + (string=? name (license-name l))) + %licenses)))) + +(define (license-name->uri name) + (and=> (license-name->license name) + license-uri)) diff --git a/emacs/guix-read.el b/emacs/guix-read.el index 3bc7b16..a1a6b86 100644 --- a/emacs/guix-read.el +++ b/emacs/guix-read.el @@ -1,6 +1,6 @@ ;;; guix-read.el --- Minibuffer readers -;; Copyright © 2015 Alex Kost <alez...@gmail.com> +;; Copyright © 2015, 2016 Alex Kost <alez...@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 -- 2.7.0
