lisp/inc-vers.el

   1 ;;; inc-vers.el --- load this to increment the recorded Emacs version number.
   2
   3 ;; Copyright (C) 1985, 1986 Free Software Foundation, Inc.
   4
   5 ;; Maintainer: FSF
   6 ;; Keywords: internal
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it 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 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 ;;; Code:
  25
  26 (insert-file-contents "../lisp/version.el")
  27
  28 (re-search-forward "emacs-version \"[^\"]*[0-9]+\"")
  29 (forward-char -1)
  30 (save-excursion
  31   (save-restriction
  32     (narrow-to-region (point)
  33                       (progn (skip-chars-backward "0-9") (point)))
  34     (goto-char (point-min))
  35     (let ((version (read (current-buffer))))
  36       (delete-region (point-min) (point-max))
  37       (prin1 (1+ version) (current-buffer)))))
  38 (skip-chars-backward "^\"")
  39 (message "New Emacs version will be %s"
  40          (buffer-substring (point)
  41                            (progn (skip-chars-forward "^\"") (point))))
  42
  43
  44 (if (and (file-accessible-directory-p "../lisp/")
  45          (null (file-writable-p "../lisp/version.el")))
  46     (delete-file "../lisp/version.el"))
  47 (if (eq system-type 'ms-dos) (setq buffer-file-type t))
  48 (write-region (point-min) (point-max) "../lisp/version.el" nil 'nomsg)
  49 (erase-buffer)
  50 (set-buffer-modified-p nil)
  51
  52 (kill-emacs)
  53
  54 ;;; inc-vers.el ends here