summaryrefslogtreecommitdiff
path: root/lisp/cus-dep.el
blob: e49d86a9ecdc78e6b35a27efa4a350d0ad08498f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
;;; cus-dep.el --- find customization dependencies
;;
;; Copyright (C) 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
;;   2008  Free Software Foundation, Inc.
;;
;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;;; Code:

(eval-when-compile (require 'cl))
(require 'widget)
(require 'cus-face)

(defvar generated-custom-dependencies-file "cus-load.el"
  "Output file for `custom-make-dependencies'.")

;; See finder-no-scan-regexp in finder.el.
(defvar custom-dependencies-no-scan-regexp "\\(^\\.#\\|\\(loaddefs\\|\
ldefs-boot\\|cus-load\\|finder-inf\\|esh-groups\\|subdirs\\)\\.el$\\)"
  "Regexp matching file names not to scan for `custom-make-dependencies'.")

(autoload 'autoload-rubric "autoload")

(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))
    (with-temp-buffer
      (dolist (subdir command-line-args-left)
        (message "Directory %s" subdir)
        (let ((files (directory-files subdir nil "\\`[^=].*\\.el\\'"))
              (default-directory (expand-file-name subdir))
              (preloaded (concat "\\`"
                                 (regexp-opt (mapcar
                                              (lambda (f)
                                                (file-name-sans-extension
                                                 (file-name-nondirectory f)))
                                              preloaded-file-list) t)
                                 "\\.el\\'")))
          (dolist (file files)
            (unless (or (string-match custom-dependencies-no-scan-regexp file)
                        (string-match preloaded file)
                        (not (file-exists-p file)))
              (erase-buffer)
              (insert-file-contents file)
              (goto-char (point-min))
              (string-match "\\`\\(.*\\)\\.el\\'" file)
              (let ((name (file-name-nondirectory (match-string 1 file)))
                    (load-file-name file))
                (if (save-excursion
                      (re-search-forward
		     (concat "(provide[ \t\n]+\\('\\|(quote[ \t\n]\\)[ \t\n]*"
			     (regexp-quote name) "[ \t\n)]")
		     nil t))
                    (setq name (intern name)))
                (condition-case nil
                    (while (re-search-forward
                            "^(def\\(custom\\|face\\|group\\)" nil t)
                      (beginning-of-line)
                      (let ((expr (read (current-buffer))))
                        (condition-case nil
                            (let ((custom-dont-initialize t))
                              (eval expr)
                              (put (nth 1 expr) 'custom-where name))
                          (error nil))))
                  (error nil)))))))))
  (message "Generating %s..." generated-custom-dependencies-file)
  (set-buffer (find-file-noselect generated-custom-dependencies-file))
  (setq buffer-undo-list t)
  (erase-buffer)
  (insert (autoload-rubric generated-custom-dependencies-file
                           "custom dependencies"))
  (search-backward "")
  (mapatoms (lambda (symbol)
	      (let ((members (get symbol 'custom-group))
                    where found)
		(when members
		  (dolist (member
                           ;; So x and no-x builds won't differ.
                           (sort (mapcar 'car members) 'string<))
		    (setq where (get member 'custom-where))
		    (unless (or (null where)
				(member where found))
		      (push where found)))
		  (when found
		    (insert "(put '" (symbol-name symbol)
                            " 'custom-loads '")
                    (prin1 (nreverse found) (current-buffer))
                    (insert ")\n"))))))
  (insert "\
;; These are for handling :version.  We need to have a minimum of
;; information so `customize-changed-options' could do its job.

;; For groups we set `custom-version', `group-documentation' and
;; `custom-tag' (which are 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 or faces 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
;; " (file-name-nondirectory generated-custom-dependencies-file)
      " 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))
		      where)
		  (when version
		    (setq where (get symbol 'custom-where))
		    (when where
		      (if (or (custom-variable-p symbol)
			      (custom-facep symbol))
			  ;; This means it's a variable or a face.
			  (progn
			    (if (assoc version version-alist)
				(unless
				    (member where
					    (cdr (assoc version version-alist)))
				  (push where (cdr (assoc version version-alist))))
			      (push (list version where) version-alist)))
			;; This is a group
			(insert "(custom-put-if-not '" (symbol-name symbol)
				" 'custom-version ")
			(prin1 version (current-buffer))
			(insert ")\n")
			(insert "(custom-put-if-not '" (symbol-name symbol))
			(insert " 'group-documentation ")
			(prin1 (get symbol 'group-documentation) (current-buffer))
			(insert ")\n")
			(when (get symbol 'custom-tag)
			  (insert "(custom-put-if-not '" (symbol-name symbol))
			  (insert " 'custom-tag ")
			  (prin1 (get symbol 'custom-tag) (current-buffer))
			  (insert ")\n"))
			))))))

    (insert "\n(defvar custom-versions-load-alist "
	    (if version-alist "'" ""))
    (prin1 version-alist (current-buffer))
    (insert "\n \"For internal use by custom.\")\n"))
  (save-buffer)
  (message "Generating %s...done" generated-custom-dependencies-file))



;; arch-tag: b7b6421a-bf7a-44fd-a382-6f44976bdf68
;;; cus-dep.el ends here