;;; cedet.el --- Setup CEDET environment

;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 by David Ponce

;; Author: David Ponce <david@dponce.com>
;; Maintainer: CEDET developers <http://sf.net/projects/cedet>
;; Created: 09 Dec 2002
;; Keywords: syntax
;; X-RCS: $Id: cedet.el,v 1.21 2007/06/06 00:50:33 zappo Exp $

;; This file is not part of Emacs

;; 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.

;;; Commentary:
;;
;; This library automatically setups your [X]Emacs to use CEDET tools.
;;
;; First download the latest CEDET distribution, provided in a
;; cedet-<VERSION>.tar.gz tarball, from the project page at:
;; <http://sf.net/projects/cedet>.
;;  
;; Unpack the tarball in a directory of your choice.  It will install
;; the following directory tree:
;;
;;   cedet
;;     |
;;     +- common
;;     |
;;     +- cogre
;;     |
;;     +- ede
;;     |
;;     +- eieio
;;     |
;;     +- semantic
;;     |
;;     +- speedbar
;;     |
;;     \- contrib
;;
;; Then, add the following into your ~/.emacs startup file:
;;
;;   (load-file "<INSTALL-PATH>/cedet/common/cedet.el")
;;
;; If you want to turn on useful or all Semantic features by default,
;; respectively add:
;;
;;   (setq semantic-load-turn-useful-things-on t)
;; or
;;   (setq semantic-load-turn-everything-on t)
;;
;; before loading this file, like this:
;;
;;   (setq semantic-load-turn-useful-things-on t)
;;   (load-file "<INSTALL-PATH>/cedet/common/cedet.el")
;;
;; That's it!
;;

;;; History:
;;

;;; Code:
(eval-when-compile
  (require 'cl)
  )

(defconst cedet-version "1.0pre4"
  "Current version of CEDET.")

(defconst cedet-packages
  `(
    ;;PACKAGE   MIN-VERSION      INSTALLDIR
    (cedet         ,cedet-version  "common" )
    (cogre         "0.5"                    )
    (ede           "1.0pre4"                )
    (eieio         "1.0"                    )
    (semantic      "2.0pre4"                )
    (speedbar      "1.0.1"                  )
    (cedet-contrib "1.0pre4"      "contrib" )
    )
  "Table of CEDET packages to install.")

;; This file must be in "<INSTALL-DIR>/cedet/common"!
(let ((default-directory
        (file-name-directory
         (or load-file-name (buffer-file-name)))))
  
  ;; Add "<INSTALL-DIR>/cedet/common" to `load-path'.
  (add-to-list 'load-path default-directory)
  (message "%S added to `load-path'" default-directory)
  ;; Require the inversion library.
  (require 'inversion)
  
  ;; Go up to the parent "<INSTALL-DIR>/cedet" directory.
  (let ((default-directory (expand-file-name ".."))
        package min-version installdir)

    ;; Add the CEDET packages subdirectories to the `load-path' if
    ;; necessary.
    (dolist (package-spec cedet-packages)
      (setq package     (nth 0 package-spec)
            min-version (nth 1 package-spec)
            installdir  (nth 2 package-spec))
      (when installdir
        (setq installdir (expand-file-name installdir)))
      (inversion-add-to-load-path package min-version installdir))

    ;; Then run every package setup.
    (dolist (package-spec cedet-packages)
      (setq package (nth 0 package-spec))
      (message "Setting up %s..." package)
      (condition-case err
          (progn
            (require (intern (format "%s-load" package)))
            (message "Setting up %s...done" package))
        (error
         (message "%s" (error-message-string err)))))
    ))

(eval-when-compile
  (require 'inversion))

(defun cedet-version ()
  "Display all active versions of CEDET and Dependant packages.

The PACKAGE column is the name of a given package from CEDET.

REQUESTED VERSION is the version requested by the CEDET load script.
See `cedet-packages' for details.

FILE VERSION is the version number found in the source file
for the specificed PACKAGE.

LOADED VERSION is the version of PACKAGE current loaded in Emacs
memory and (presumably) running in this Emacs instance.  Value is X
if the package has not been loaded."
  (interactive)
  (with-output-to-temp-buffer "*CEDET*"
    (princ "CEDET Version:\t") (princ cedet-version)
    (princ "\n  \t\t\tRequested\tFile\t\tLoaded")
    (princ "\n  Package\t\tVersion\t\tVersion\t\tVersion")
    (princ "\n  ----------------------------------------------------------")
    (let ((p cedet-packages))
      (while p
	(let ((sym (symbol-name (car (car p)))))
	  (princ "\n  ")
	  (princ sym)
	  (princ ":\t")
	  (if (< (length sym) 5)
	      (princ "\t"))
	  (if (< (length sym) 13)
	      (princ "\t"))
	  (let ((reqver (nth 1 (car p)))
		(filever (car (inversion-find-version sym)))
		(loadver (when (featurep (car (car p)))
			   (symbol-value (intern-soft (concat sym "-version"))))))
	    (princ reqver)
	    (if (< (length reqver) 8) (princ "\t"))
	    (princ "\t")
	    (if (string= filever reqver)
		;; I tried the words "check" and "match", but that
		;; just looked lame.
		(princ "ok\t")
	      (princ filever)
	      (if (< (length filever) 8) (princ "\t")))
	    (princ "\t")
	    (if loadver
		(if (string= loadver reqver)
		    (princ "ok")
		  (princ loadver))
	      (princ "Not Loaded"))
	    ))
	(setq p (cdr p))))
    (princ "\n\n\nC-h f cedet-version RET\n  for details on output format.")
    ))

(provide 'cedet)

;;; cedet.el ends here