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emacs: Add interface for package locations.

* emacs/guix-main.scm (%package-location-param-alist): New variable.
(package-location->sexp, package-location-entries): New procedures.
* emacs/guix-ui-location.el: New file.
* emacs.am (ELFILES): Add it.
* doc/emacs.texi (Emacs Package Locations): Document 'guix-locations'.
* NEWS: Mention it.
gn-latest-20200428
Alex Kost 6 years ago
parent
commit
b4b9975d4a
  1. 6
      NEWS
  2. 7
      doc/emacs.texi
  3. 1
      emacs.am
  4. 12
      emacs/guix-main.scm
  5. 83
      emacs/guix-ui-location.el

6
NEWS

@ -10,6 +10,12 @@ Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
Please send Guix bug reports to bug-guix@gnu.org.
* Changes in 0.11.0 (since 0.10.0)
** Package management
*** New Emacs interface for package locations: M-x guix-locations
* Changes in 0.10.0 (since 0.9.0)
** Community

7
doc/emacs.texi

@ -556,6 +556,13 @@ get lost in these locations:
@table @kbd
@item M-x guix-locations
Display a list of package locations. You can press @key{RET} there to
display packages placed in the current location in the same way as
@kbd{M-x guix-packages-by-location} would do (@pxref{Emacs Commands}).
Note that when the point is on a location button, @key{RET} will open
this location file.
@item M-x guix-find-location
Open the given package definition source file (press @key{TAB} to choose
a location from a completion list).

1
emacs.am

@ -49,6 +49,7 @@ ELFILES = \
emacs/guix-read.el \
emacs/guix-ui.el \
emacs/guix-ui-license.el \
emacs/guix-ui-location.el \
emacs/guix-ui-package.el \
emacs/guix-ui-generation.el \
emacs/guix-ui-system-generation.el \

12
emacs/guix-main.scm

@ -1127,3 +1127,15 @@ Return #t if the shell command was executed successfully."
(lambda ()
"Return the list of file names of all package locations."
(force files)))))
(define %package-location-param-alist
`((id . ,identity)
(location . ,identity)
(number-of-packages . ,(lambda (location)
(length (packages-by-location-file location))))))
(define package-location->sexp
(object-transformer %package-location-param-alist))
(define (package-location-entries)
(map package-location->sexp (package-location-files)))

83
emacs/guix-ui-location.el

@ -0,0 +1,83 @@
;;; 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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