;;; cedet-remove-builtin.el --- Remove CEDET version shipping with Emacs
;;
;; Copyright (C) 2011 Eric M. Ludlam
;;
;; Author: Eric M. Ludlam <eric@siege-engine.com>
;;
;; This program 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 2, or (at
;; your option) any later version.
;; This program 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 this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Code:
(defvar cedet-remove-builtin-package-list
'(eieio semantic srecode ede data-debug)
"CEDET packages part of Emacs proper that should be removed.
The 'cedet' package itself is implicitly included.")
(defun cedet-remove-builtin ()
"Force any CEDET package on load-path to be removed.
Force all symbols that belong to CEDET to be unloaded. This
should also (hopefully) remove additional CEDET installations
installed through package managers or similar. This is a needed
first step in getting CEDET installed from outside sources."
(interactive)
(when (featurep 'cedet)
(error "Cannot unload builtin CEDET since it is already loaded."))
(dolist (package cedet-remove-builtin-package-list)
(when (featurep package)
(error "%s is already loaded. Removing CEDET now would be unwise."
(symbol-name package))))
;; Remove from load-path.
(let (clp)
(while (setq clp (locate-library "cedet"))
(setq load-path (delete (directory-file-name (file-name-directory clp))
load-path))
(setq load-path (delete (file-name-directory (file-name-directory clp))
load-path))))
;; Find ALL autoloaded symbols related to CEDET, and delete them.
(dolist (R (append '(cedet) cedet-remove-builtin-package-list))
(dolist (S (append (apropos-internal (concat "^" (symbol-name R) "-"))
(apropos-internal (concat "^global-" (symbol-name R) "-"))))
(when (and (fboundp S)
(let ((sf (symbol-function S)))
(and (listp sf) (eq (car sf) 'autoload))))
(fmakunbound S))))
)
(cedet-remove-builtin)
(provide 'cedet-remove-builtin)
;;; cedet-remove-builtin.el ends here
