git.chise.org Git - chise/xemacs-chise.git.1/blob - lisp/setup-paths.el

   1 ;;; setup-paths.el --- setup various XEmacs paths
   2
   3 ;; Copyright (C) 1985-1986, 1990, 1992-1997 Free Software Foundation, Inc.
   4 ;; Copyright (c) 1993, 1994 Sun Microsystems, Inc.
   5 ;; Copyright (C) 1995 Board of Trustees, University of Illinois
   6
   7 ;; Author: Mike Sperber <sperber@informatik.uni-tuebingen.de>
   8 ;; Maintainer: XEmacs Development Team
   9 ;; Keywords: internal, dumped
  10
  11 ;; This file is part of XEmacs.
  12
  13 ;; XEmacs is free software; you can redistribute it and/or modify it
  14 ;; under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation; either version 2, or (at your option)
  16 ;; any later version.
  17
  18 ;; XEmacs is distributed in the hope that it will be useful, but
  19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 ;; General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with XEmacs; see the file COPYING.  If not, write to the
  25 ;; Free Software Foundation, 59 Temple Place - Suite 330,
  26 ;; Boston, MA 02111-1307, USA.
  27
  28 ;;; Synched up with: Not in FSF.
  29
  30 ;;; Commentary:
  31
  32 ;; This file is dumped with XEmacs.
  33
  34 ;; This file describes and constructs the various paths into the
  35 ;; XEmacs hierarchy from a global viewpoint.
  36
  37 ;; It requires find-paths.el and packages.el.
  38 \f
  39 ;;; Code:
  40
  41 (defvar paths-load-path-depth 1
  42   "Depth of load-path searches in core Lisp paths.")
  43
  44 (defvar paths-default-info-directories
  45   (mapcar (function
  46            (lambda (dirlist)
  47              (paths-construct-path
  48               dirlist (char-to-string directory-sep-char))))
  49           '(("usr" "local" "info")
  50             ("usr" "info")
  51             ("usr" "local" "share" "info")
  52             ("usr" "share" "info")))
  53   "Directories appended to the end of the info path by default.")
  54
  55 (defun paths-find-site-lisp-directory (roots)
  56   "Find the site Lisp directory of the XEmacs hierarchy."
  57   (paths-find-site-directory roots "site-lisp"
  58                              nil
  59                              configure-site-directory))
  60
  61 (defun paths-find-site-module-directory (roots)
  62   "Find the site modules directory of the XEmacs hierarchy."
  63   (paths-find-site-directory roots "site-modules"
  64                              nil
  65                              configure-site-module-directory))
  66
  67 (defun paths-find-lisp-directory (roots)
  68   "Find the main Lisp directory of the XEmacs hierarchy."
  69   (paths-find-version-directory roots "lisp"
  70                                 nil
  71                                 configure-lisp-directory))
  72
  73 (defun paths-find-module-directory (roots)
  74   "Find the main modules directory of the XEmacs hierarchy."
  75   (paths-find-architecture-directory roots "modules"
  76                                      nil configure-module-directory))
  77
  78 (defun paths-construct-load-path
  79   (roots early-package-load-path late-package-load-path last-package-load-path
  80          lisp-directory
  81          &optional site-lisp-directory)
  82   "Construct the load path."
  83   (let* ((envvar-value (getenv "EMACSLOADPATH"))
  84          (env-load-path
  85           (and envvar-value
  86                (paths-decode-directory-path envvar-value 'drop-empties)))
  87          (site-lisp-load-path
  88           (and site-lisp-directory
  89                (paths-find-recursive-load-path (list site-lisp-directory)
  90                                                paths-load-path-depth)))
  91          (lisp-load-path
  92           (and lisp-directory
  93                (paths-find-recursive-load-path (list lisp-directory)
  94                                                paths-load-path-depth))))
  95     (append env-load-path
  96             early-package-load-path
  97             site-lisp-load-path
  98             late-package-load-path
  99             lisp-load-path
 100             last-package-load-path)))
 101
 102 (defun paths-construct-module-load-path
 103   (root module-directory &optional site-module-directory)
 104   "Construct the modules load path."
 105   (let* ((envvar-value (getenv "EMACSMODULEPATH"))
 106          (env-module-path
 107           (and envvar-value
 108                (paths-decode-directory-path envvar-value 'drop-empties)))
 109          (site-module-load-path
 110           (and site-module-directory
 111                (paths-find-recursive-load-path (list site-module-directory)
 112                                                paths-load-path-depth)))
 113          (module-load-path
 114           (and module-directory
 115                (paths-find-recursive-load-path (list module-directory)
 116                                                paths-load-path-depth))))
 117      (append env-module-path
 118             site-module-load-path
 119             module-load-path)))
 120
 121 (defun paths-construct-info-path (roots early-packages late-packages last-packages)
 122   "Construct the info path."
 123   (let ((info-path-envval (getenv "INFOPATH")))
 124     (paths-uniq-append
 125      (append
 126       (let ((info-directory
 127              (paths-find-version-directory roots "info"
 128                                            nil
 129                                            configure-info-directory)))
 130         (and info-directory
 131              (list info-directory)))
 132       (packages-find-package-info-path early-packages)
 133       (packages-find-package-info-path late-packages)
 134       (packages-find-package-info-path last-packages)
 135       (and info-path-envval
 136            (paths-decode-directory-path info-path-envval 'drop-empties)))
 137      (and (null info-path-envval)
 138           (paths-uniq-append
 139            (paths-directories-which-exist configure-info-path)
 140            (paths-directories-which-exist paths-default-info-directories))))))
 141
 142 (defun paths-find-doc-directory (roots)
 143   "Find the documentation directory."
 144   (paths-find-architecture-directory roots "lib-src" nil configure-doc-directory))
 145
 146 (defun paths-find-exec-directory (roots)
 147   "Find the binary directory."
 148   (paths-find-architecture-directory roots "lib-src"
 149                                      nil configure-exec-directory))
 150
 151 (defun paths-construct-exec-path (roots exec-directory
 152                                   early-packages late-packages last-packages)
 153   "Find the binary path."
 154   (append
 155    (let ((path-envval (getenv "PATH")))
 156      (if path-envval
 157          (paths-decode-directory-path path-envval 'drop-empties)))
 158    (packages-find-package-exec-path early-packages)
 159    (packages-find-package-exec-path late-packages)
 160    (let ((emacspath-envval (getenv "EMACSPATH")))
 161      (and emacspath-envval
 162           (split-path emacspath-envval)))
 163    (and exec-directory
 164         (list exec-directory))
 165    (packages-find-package-exec-path last-packages)))
 166
 167 (defun paths-find-data-directory (roots)
 168   "Find the data directory."
 169   (paths-find-version-directory roots "etc" "EMACSDATA" configure-data-directory))
 170
 171 (defun paths-construct-data-directory-list (data-directory
 172                                             early-packages late-packages last-packages)
 173   "Find the data path."
 174   (append
 175    (packages-find-package-data-path early-packages)
 176    (packages-find-package-data-path late-packages)
 177    (list data-directory)
 178    (packages-find-package-data-path last-packages)))
 179
 180 ;;; setup-paths.el ends here