Initial revision

diff --git a/lisp/cus-dep.el b/lisp/cus-dep.el
new file mode 100644 (file)
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--- /dev/null
+++ b/lisp/cus-dep.el
@@ -0,0 +1,67 @@
+;;; cus-dep.el --- Find customization dependencies.
+;;
+;; Copyright (C) 1997 Free Software Foundation, Inc.
+;;
+;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
+;; Keywords: internal
+
+;;; Code:
+
+(require 'cl)
+(load-file "widget.el")
+(load-file "custom.el")
+(load-file "cus-face.el")
+
+(defun custom-make-dependencies ()
+  "Batch function to extract custom dependencies from .el files.
+Usage: emacs -batch -l ./cus-dep.el -f custom-make-dependencies"
+  (let ((enable-local-eval nil)
+       (files (directory-files "" nil "\\`[^=].*\\.el\\'" t))
+       file)
+    (while files
+      (setq file (car files)
+           files (cdr files))
+      (message "Checking %s..." file)
+      (set-buffer (find-file-noselect file))
+      (goto-char (point-min))
+      (string-match "\\`\\(.*\\)\\.el\\'" file)
+      (condition-case nil
+         (let ((name (file-name-nondirectory (match-string 1 file))))
+           (while t
+             (let ((expr (read (current-buffer))))
+               (when (and (listp expr)
+                          (memq (car expr) '(defcustom defface defgroup)))
+                 (eval expr)
+                 (put (nth 1 expr) 'custom-where name)))))
+       (error nil))
+      (kill-buffer (current-buffer))))
+  (message "Generating cus-load.el...")
+  (find-file "cus-load.el")
+  (erase-buffer)
+  (insert "\
+;;; cus-load.el --- automatically extracted custom dependencies
+;;
+;;; Code:
+")
+  (mapatoms (lambda (symbol)
+             (let ((members (get symbol 'custom-group))
+                   item where found)
+               (when members
+                 (while members
+                   (setq item (car (car members))
+                         members (cdr members)
+                         where (get item 'custom-where))
+                   (unless (or (null where)
+                               (member where found))
+                     (if found
+                         (insert " ")
+                       (insert "(put '" (symbol-name symbol) 
+                               " 'custom-loads '("))
+                     (insert (prin1-to-string where))
+                     (push where found)))
+                 (insert "))\n")))))
+  (insert "\n;;; cus-load.el ends here\n")
+  (save-buffer)
+  (message "Generating cus-load.el..."))
+
+;;; cus-dep.el ends here