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.
This commit is contained in:
Alex Kost 2016-04-01 14:00:01 +03:00
parent b4ea535a9f
commit 79c7a8f214
5 changed files with 98 additions and 62 deletions

View file

@ -40,6 +40,7 @@ ELFILES = \
emacs/guix-init.el \
emacs/guix-license.el \
emacs/guix-list.el \
emacs/guix-location.el \
emacs/guix-messages.el \
emacs/guix-pcomplete.el \
emacs/guix-popup.el \

View file

@ -82,7 +82,7 @@ If you have a slow system, try to increase this time."
:type 'string
:group 'guix-repl)
(defcustom guix-after-start-repl-hook ()
(defcustom guix-after-start-repl-hook '(guix-set-directory)
"Hook called after Guix REPL is started."
:type 'hook
:group 'guix-repl)
@ -336,6 +336,28 @@ additional internal REPL if it exists."
(interactive "P")
(geiser-repl--switch-to-buffer (guix-get-repl-buffer internal)))
;;; Guix directory
(defvar guix-directory nil
"Default directory with Guix source.
If it is not set by a user, it is set after starting Guile REPL.
This directory is used to define package locations.")
(defun guix-read-directory ()
"Return `guix-directory' or prompt for it.
This function is intended for using in `interactive' forms."
(if current-prefix-arg
(read-directory-name "Directory with Guix modules: "
guix-directory)
guix-directory))
(defun guix-set-directory ()
"Set `guix-directory' if needed."
(or guix-directory
(setq guix-directory
(guix-eval-read "%guix-dir"))))
;;; Evaluating expressions

View file

@ -48,53 +48,7 @@
(when output (concat ":" output))))
;;; Location of packages, profiles and manifests
(defvar guix-directory nil
"Default Guix directory.
If it is not set by a user, it is set after starting Guile REPL.
This directory is used to define location of the packages.")
(defun guix-read-directory ()
"Return `guix-directory' or prompt for it.
This function is intended for using in `interactive' forms."
(if current-prefix-arg
(read-directory-name "Directory with Guix modules: "
guix-directory)
guix-directory))
(defun guix-set-directory ()
"Set `guix-directory' if needed."
(or guix-directory
(setq guix-directory
(guix-eval-read "%guix-dir"))))
(add-hook 'guix-after-start-repl-hook 'guix-set-directory)
(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))))
(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)))
;;; Location of profiles and manifests
(defun guix-generation-file (profile generation)
"Return the file name of a PROFILE's GENERATION."
@ -120,20 +74,6 @@ See `guix-packages-profile'."
(expand-file-name "manifest"
(guix-packages-profile profile generation system?)))
;;;###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."))))
;;; Actions on packages and generations

72
emacs/guix-location.el Normal file
View file

@ -0,0 +1,72 @@
;;; guix-location.el --- 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 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

View file

@ -38,6 +38,7 @@
(require 'guix-hydra-build)
(require 'guix-read)
(require 'guix-license)
(require 'guix-location)
(require 'guix-profiles)
(guix-ui-define-entry-type package)