From 79c7a8f214707c98c1ea1936fd62baec41177a81 Mon Sep 17 00:00:00 2001 From: Alex Kost Date: Fri, 1 Apr 2016 14:00:01 +0300 Subject: emacs: Separate package location code. * emacs/guix-base.el (guix-directory, guix-read-directory) (guix-set-directory): Move to "guix-backend.el". (guix-find-location, guix-package-location, guix-edit): Move to... * emacs/guix-location.el: ... here. New file. * emacs/guix-ui-package.el: Use it. * emacs.am (ELFILES): Add it. --- emacs/guix-location.el | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 emacs/guix-location.el (limited to 'emacs/guix-location.el') diff --git a/emacs/guix-location.el b/emacs/guix-location.el new file mode 100644 index 0000000000..4b23293d94 --- /dev/null +++ b/emacs/guix-location.el @@ -0,0 +1,72 @@ +;;; guix-location.el --- Package locations + +;; Copyright © 2016 Alex Kost + +;; 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 . + +;;; Commentary: + +;; This file provides the code to work with locations of Guix packages. + +;;; Code: + +(require 'cl-lib) +(require 'guix-backend) +(require 'guix-read) +(require 'guix-guile) + +(defun guix-package-location (id-or-name) + "Return location of a package with ID-OR-NAME. +For the meaning of location, see `guix-find-location'." + (guix-eval-read (guix-make-guile-expression + 'package-location-string id-or-name))) + +(defun guix-find-location (location &optional directory) + "Go to LOCATION of a package. +LOCATION is a string of the form: + + \"PATH:LINE:COLUMN\" + +If PATH is relative, it is considered to be relative to +DIRECTORY (`guix-directory' by default)." + (cl-multiple-value-bind (path line col) + (split-string location ":") + (let ((file (expand-file-name path (or directory guix-directory))) + (line (string-to-number line)) + (col (string-to-number col))) + (find-file file) + (goto-char (point-min)) + (forward-line (- line 1)) + (move-to-column col) + (recenter 1)))) + +;;;###autoload +(defun guix-edit (id-or-name &optional directory) + "Edit (go to location of) package with ID-OR-NAME. +See `guix-find-location' for the meaning of package location and +DIRECTORY. +Interactively, with prefix argument, prompt for DIRECTORY." + (interactive + (list (guix-read-package-name) + (guix-read-directory))) + (let ((loc (guix-package-location id-or-name))) + (if loc + (guix-find-location loc directory) + (message "Couldn't find package location.")))) + +(provide 'guix-location) + +;;; guix-location.el ends here -- cgit v1.2.3