1 ;;; cus-dep.el --- find customization dependencies
3 ;; Copyright (C) 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
4 ;; 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 (eval-when-compile (require 'cl))
33 (defvar generated-custom-dependencies-file "cus-load.el"
34 "Output file for `custom-make-dependencies'.")
36 ;; See finder-no-scan-regexp in finder.el.
37 (defvar custom-dependencies-no-scan-regexp "\\(^\\.#\\|\\(loaddefs\\|\
38 ldefs-boot\\|cus-load\\|finder-inf\\|esh-groups\\|subdirs\\)\\.el$\\)"
39 "Regexp matching file names not to scan for `custom-make-dependencies'.")
41 (autoload 'autoload-rubric "autoload")
43 (defun custom-make-dependencies ()
44 "Batch function to extract custom dependencies from .el files.
45 Usage: emacs -batch -l ./cus-dep.el -f custom-make-dependencies DIRS"
46 (let ((enable-local-eval nil))
48 (dolist (subdir command-line-args-left)
49 (message "Directory %s" subdir)
50 (let ((files (directory-files subdir nil "\\`[^=].*\\.el\\'"))
51 (default-directory (expand-file-name subdir))
52 (preloaded (concat "\\`"
55 (file-name-sans-extension
56 (file-name-nondirectory f)))
57 preloaded-file-list) t)
60 (unless (or (string-match custom-dependencies-no-scan-regexp file)
61 (string-match preloaded file)
62 (not (file-exists-p file)))
64 (insert-file-contents file)
65 (goto-char (point-min))
66 (string-match "\\`\\(.*\\)\\.el\\'" file)
67 (let ((name (file-name-nondirectory (match-string 1 file)))
68 (load-file-name file))
71 (concat "(provide[ \t\n]+\\('\\|(quote[ \t\n]\\)[ \t\n]*"
72 (regexp-quote name) "[ \t\n)]")
74 (setq name (intern name)))
76 (while (re-search-forward
77 "^(def\\(custom\\|face\\|group\\)" nil t)
79 (let ((expr (read (current-buffer))))
81 (let ((custom-dont-initialize t))
83 (put (nth 1 expr) 'custom-where name))
86 (message "Generating %s..." generated-custom-dependencies-file)
87 (set-buffer (find-file-noselect generated-custom-dependencies-file))
88 (setq buffer-undo-list t)
90 (insert (autoload-rubric generated-custom-dependencies-file
91 "custom dependencies" t))
92 (search-backward "
\f")
93 (mapatoms (lambda (symbol)
94 (let ((members (get symbol 'custom-group))
98 ;; So x and no-x builds won't differ.
99 (sort (mapcar 'car members) 'string<))
100 (setq where (get member 'custom-where))
101 (unless (or (null where)
102 (member where found))
105 (insert "(put '" (symbol-name symbol)
107 (prin1 (nreverse found) (current-buffer))
110 ;; These are for handling :version. We need to have a minimum of
111 ;; information so `customize-changed-options' could do its job.
113 ;; For groups we set `custom-version', `group-documentation' and
114 ;; `custom-tag' (which are shown in the customize buffer), so we
115 ;; don't have to load the file containing the group.
117 ;; `custom-versions-load-alist' is an alist that has as car a version
118 ;; number and as elts the files that have variables or faces that
119 ;; contain that version. These files should be loaded before showing
120 ;; the customization buffer that `customize-changed-options'
123 ;; This macro is used so we don't modify the information about
124 ;; variables and groups if it's already set. (We don't know when
125 ;; " (file-name-nondirectory generated-custom-dependencies-file)
126 " is going to be loaded and at that time some of the
127 ;; files might be loaded and some others might not).
128 \(defmacro custom-put-if-not (symbol propname value)
129 `(unless (get ,symbol ,propname)
130 (put ,symbol ,propname ,value)))
133 (let ((version-alist nil))
134 (mapatoms (lambda (symbol)
135 (let ((version (get symbol 'custom-version))
138 (setq where (get symbol 'custom-where))
140 (if (or (custom-variable-p symbol)
141 (custom-facep symbol))
142 ;; This means it's a variable or a face.
144 (if (assoc version version-alist)
147 (cdr (assoc version version-alist)))
148 (push where (cdr (assoc version version-alist))))
149 (push (list version where) version-alist)))
151 (insert "(custom-put-if-not '" (symbol-name symbol)
153 (prin1 version (current-buffer))
155 (insert "(custom-put-if-not '" (symbol-name symbol))
156 (insert " 'group-documentation ")
157 (prin1 (get symbol 'group-documentation) (current-buffer))
159 (when (get symbol 'custom-tag)
160 (insert "(custom-put-if-not '" (symbol-name symbol))
161 (insert " 'custom-tag ")
162 (prin1 (get symbol 'custom-tag) (current-buffer))
166 (insert "\n(defvar custom-versions-load-alist "
167 (if version-alist "'" ""))
168 (prin1 version-alist (current-buffer))
169 (insert "\n \"For internal use by custom.\")\n"))
171 (message "Generating %s...done" generated-custom-dependencies-file))
175 ;; arch-tag: b7b6421a-bf7a-44fd-a382-6f44976bdf68
176 ;;; cus-dep.el ends here