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;;; guix-ui-location.el --- Interface for displaying package locations
;; 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 Location as published by
;; the Free Software Foundation, either version 3 of the Location, 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 Location for more details.
;; You should have received a copy of the GNU General Public Location
;; along with this program. If not, see <http://www.gnu.org/locations/>.
;;; Commentary:
;; This file provides a 'list' interface for displaying locations of Guix
;; packages.
;;; Code:
(require 'guix-buffer)
(require 'guix-list)
(require 'guix-location)
(require 'guix-backend)
(guix-define-entry-type location)
(defun guix-location-get-entries ()
"Receive 'package location' entries."
(guix-eval-read "(package-location-entries)"))
;;; Location 'list'
(guix-list-define-interface location
:buffer-name "*Guix Package Locations*"
:get-entries-function 'guix-location-get-entries
:format '((location guix-location-list-file-name-specification 50 t)
(number-of-packages nil 10 guix-list-sort-numerically-1
:right-align t))
:sort-key '(location))
(let ((map guix-location-list-mode-map))
(define-key map (kbd "RET") 'guix-location-list-show-packages)
;; "Location Info" buffer is not defined (it would be useless), so
;; unbind "i" key (by default, it is used to display Info buffer).
(define-key map (kbd "i") nil))
(defun guix-location-list-file-name-specification (location &optional _)
"Return LOCATION button specification for `tabulated-list-entries'."
(list location
'face 'guix-list-file-name
'action (lambda (btn)
(guix-find-location (button-get btn 'location)))
'follow-link t
'help-echo (concat "Find location: " location)
'location location))
(declare-function guix-packages-by-location "guix-ui-package")
(defun guix-location-list-show-packages ()
"Display packages placed in the location at point."
(interactive)
(guix-packages-by-location (guix-list-current-id)))
;;; Interactive commands
;;;###autoload
(defun guix-locations ()
"Display locations of the Guix packages."
(interactive)
(guix-list-get-display-entries 'location))
(provide 'guix-ui-location)
;;; guix-ui-location.el ends here
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