guix/emacs/guix-ui-system-generation.el

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;;; guix-ui-system-generation.el --- Interface for displaying system generations -*- lexical-binding: t -*-
;; 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 an interface for displaying system generations
;; in 'list' and 'info' buffers, and commands for working with them.
;;; Code:
(require 'cl-lib)
(require 'guix-list)
(require 'guix-ui)
(require 'guix-ui-generation)
(require 'guix-profiles)
(guix-ui-define-entry-type system-generation)
(defun guix-system-generation-get-display (search-type &rest search-values)
"Search for system generations and show results.
See `guix-ui-get-entries' for the meaning of SEARCH-TYPE and
SEARCH-VALUES."
(apply #'guix-list-get-display-entries
'system-generation
guix-system-profile
search-type search-values))
;;; System generation 'info'
(guix-ui-info-define-interface system-generation
:buffer-name "*Guix Generation Info*"
:format '((number format guix-generation-info-insert-number)
(label format (format))
(prev-number format (format))
(current format guix-generation-info-insert-current)
(path format (format guix-file))
(time format (time))
(root-device format (format))
(kernel format (format guix-file)))
:titles guix-generation-info-titles)
;;; System generation 'list'
;; FIXME It is better to make `guix-generation-list-shared-map' with
;; common keys for both usual and system generations.
(defvar guix-system-generation-list-mode-map
(copy-keymap guix-generation-list-mode-map)
"Keymap for `guix-system-generation-list-mode' buffers.")
(guix-ui-list-define-interface system-generation
:buffer-name "*Guix Generation List*"
:format '((number nil 5 guix-list-sort-numerically-0 :right-align t)
(current guix-generation-list-get-current 10 t)
(label nil 40 t)
(time guix-list-get-time 20 t)
(path guix-list-get-file-name 30 t))
:titles guix-generation-list-titles
:sort-key '(number . t)
:marks '((delete . ?D)))
;;; Interactive commands
;;;###autoload
(defun guix-system-generations ()
"Display information about system generations."
(interactive)
(guix-system-generation-get-display 'all))
;;;###autoload
(defun guix-last-system-generations (number)
"Display information about last NUMBER of system generations."
(interactive "nThe number of last generations: ")
(guix-system-generation-get-display 'last number))
;;;###autoload
(defun guix-system-generations-by-time (from to)
"Display information about system generations created between FROM and TO."
(interactive
(list (guix-read-date "Find generations (from): ")
(guix-read-date "Find generations (to): ")))
(guix-system-generation-get-display
'time (float-time from) (float-time to)))
(provide 'guix-ui-system-generation)
;;; guix-ui-system-generation.el ends here