;;; cus-dep.el --- Find customization dependencies.
;; Copyright (C) 1997 Free Software Foundation, Inc.
;; Author: Per Abrahamsen <email@example.com>
;; Keywords: internal
;; This file is part of GNU Emacs.
;; GNU Emacs 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 2, or (at your option)
;; any later version.
;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
(defun custom-make-dependencies ()
"Batch function to extract custom dependencies from .el files.
Usage: emacs -batch -l ./cus-dep.el -f custom-make-dependencies DIRS"
(let ((enable-local-eval nil)
(get-buffer-create " cus-dep temp")
(set-buffer " cus-dep temp")
(message "Directory %s" (car all-subdirs))
(let ((files (directory-files (car all-subdirs) nil "\\`[^=].*\\.el\\'"))
(cd (car all-subdirs))
(setq file (car files)
files (cdr files))
(when (file-exists-p file)
(string-match "\\`\\(.*\\)\\.el\\'" file)
(let ((name (file-name-nondirectory (match-string 1 file))))
(while (re-search-forward "^(defcustom\\|^(defface\\|^(defgroup"
(setq is-autoloaded nil)
(if (looking-at generate-autoload-cookie)
(setq is-autoloaded t)))
(let ((expr (read (current-buffer))))
(put (nth 1 expr) 'custom-autoloaded is-autoloaded)
(put (nth 1 expr) 'custom-where name))
(setq all-subdirs (cdr all-subdirs)))))
(message "Generating cus-load.el...")
;;; cus-load.el --- automatically extracted custom dependencies
(mapatoms (lambda (symbol)
(let ((members (get symbol 'custom-group))
item where found)
(setq item (car (car members))
members (cdr members)
where (get item 'custom-where))
(unless (or (null where)
(member where found))
(insert " ")
(insert "(put '" (symbol-name symbol)
" 'custom-loads '("))
(prin1 where (current-buffer))
(push where found)))
;;; These are for handling :version. We need to have a minimum of
;;; information so `custom-changed-variables' could do its job.
;;; For both groups and variables we have to set `custom-version'.
;;; For variables we also set the `standard-value' and for groups
;;; `group-documentation' (which is shown in the customize buffer, so
;;; we don't have to load the file containing the group.
;;; `custom-versions-load-alist' is an alist that has as car a version
;;; number and as elts the files that have variables that contain that
;;; version. These files should be loaded before showing the
;;; customization buffer that `customize-changed-options' generates.
;;; This macro is used so we don't modify the information about
;;; variables and groups if it's already set. (We don't know when
;;; cus-load.el is going to be loaded and at that time some of the
;;; files might be loaded and some others might not).
(defmacro custom-put-if-not (symbol propname value)
`(unless (get ,symbol ,propname)
(put ,symbol ,propname ,value)))
(let ((version-alist nil))
(mapatoms (lambda (symbol)
(let ((version (get symbol 'custom-version))
(setq where (get symbol 'custom-where))
(when (and where
;; Don't bother to do anything if it's
;; autoloaded because we will have all
;; this info when emacs is running
(not (get symbol 'custom-autoloaded)))
(insert "(custom-put-if-not '" (symbol-name symbol)
" 'custom-version ")
(prin1 version (current-buffer))
(insert "(custom-put-if-not '" (symbol-name symbol))
(if (get symbol 'standard-value)
;; This means it's a variable
(insert " 'standard-value t)\n")
(if (assoc version version-alist)
(cdr (assoc version version-alist)))
(push where (cdr (assoc version version-alist))))
(push (cons version (list where)) version-alist)))
;; This is a group
(insert " 'group-documentation ")
(prin1 (get symbol 'group-documentation) (current-buffer))
(insert "\n(defvar custom-versions-load-alist "
(if version-alist "'" ""))
(prin1 version-alist (current-buffer))
(insert "\n \"For internal use by custom.\")\n"))
;;; cus-load.el ends here\n")
(let ((kept-new-versions 10000000))
(message "Generating cus-load.el...done")
;;; cus-dep.el ends here