comparison lisp/prim/cleantree.el @ 30:ec9a17fef872 r19-15b98

Import from CVS: tag r19-15b98
author cvs
date Mon, 13 Aug 2007 08:52:29 +0200
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29:7976500f47f9 30:ec9a17fef872
1 ;;; cleantree.el --- Remove out of date .elcs in lisp directories
2
3 ;; Copyright (C) 1997 by Free Software Foundation, Inc.
4
5 ;; Author: Steven L Baur <steve@altair.xemacs.org>
6 ;; Keywords: internal
7
8 ;; This file is part of XEmacs.
9
10 ;; XEmacs is free software; you can redistribute it and/or modify it
11 ;; under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
14
15 ;; XEmacs is distributed in the hope that it will be useful, but
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;; General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 ;; 02111-1307, USA.
24
25 ;;; Synched up with: Not in FSF
26
27 ;;; Commentary:
28
29 ;; This code is derived from Gnus based on a suggestion by
30 ;; David Moore <dmoore@ucsd.edu>
31
32 ;;; Code:
33
34 (defun remove-old-elc-1 (dir &optional seen)
35 (setq dir (file-name-as-directory dir))
36 ;; Only scan this sub-tree if we haven't been here yet.
37 (unless (member (file-truename dir) seen)
38 (push (file-truename dir) seen)
39 ;; We descend recursively
40 (let ((dirs (directory-files dir t nil t))
41 dir)
42 (while (setq dir (pop dirs))
43 (when (and (not (member (file-name-nondirectory dir) '("." "..")))
44 (file-directory-p dir))
45 (remove-old-elc-1 dir seen))))
46 ;; Do this directory.
47 (let ((files (directory-files dir t ".el$"))
48 file file-c)
49 (while (setq file (car files))
50 (setq files (cdr files))
51 (setq file-c (concat file "c"))
52 (when (and (file-exists-p file-c)
53 (file-newer-than-file-p file file-c))
54 (message file-c)
55 (delete-file file-c))))))
56
57 ;;;###autoload
58 (defun batch-remove-old-elc ()
59 (defvar command-line-args-left)
60 (unless noninteractive
61 (error "`batch-remove-old-elc' is to be used only with -batch"))
62 (let ((dir (car command-line-args-left)))
63 (message "Cleaning out of date .elcs in directory `%s'..." dir)
64 (remove-old-elc-1 dir)
65 (message "Cleaning out of date .elcs in directory `%s'...done" dir))
66 (setq command-line-args-left nil))
67
68 ;;; cleantree.el ends here