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428
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1 ;;; setup-paths.el --- setup various XEmacs paths
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2
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3 ;; Copyright (C) 1985-1986, 1990, 1992-1997 Free Software Foundation, Inc.
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4 ;; Copyright (c) 1993, 1994 Sun Microsystems, Inc.
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5 ;; Copyright (C) 1995 Board of Trustees, University of Illinois
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6
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7 ;; Author: Mike Sperber <sperber@informatik.uni-tuebingen.de>
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8 ;; Maintainer: XEmacs Development Team
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9 ;; Keywords: internal, dumped
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; XEmacs is free software; you can redistribute it and/or modify it
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14 ;; under the terms of the GNU General Public License as published by
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15 ;; the Free Software Foundation; either version 2, or (at your option)
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16 ;; any later version.
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17
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18 ;; XEmacs is distributed in the hope that it will be useful, but
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19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 ;; General Public License for more details.
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22
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23 ;; You should have received a copy of the GNU General Public License
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24 ;; along with XEmacs; see the file COPYING. If not, write to the
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25 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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26 ;; Boston, MA 02111-1307, USA.
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27
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28 ;;; Synched up with: Not in FSF.
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29
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30 ;;; Commentary:
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31
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32 ;; This file is dumped with XEmacs.
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33
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34 ;; This file describes and constructs the various paths into the
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35 ;; XEmacs hierarchy from a global viewpoint.
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36
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37 ;; It requires find-paths.el and packages.el.
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38
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39 ;;; Code:
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40
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41 (defvar paths-load-path-depth 1
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42 "Depth of load-path searches in core Lisp paths.")
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43
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44 (defvar paths-default-info-directories
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45 (mapcar (function
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46 (lambda (dirlist)
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47 (paths-construct-path
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48 dirlist (char-to-string directory-sep-char))))
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49 '(("usr" "local" "info")
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50 ("usr" "info")
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51 ("usr" "local" "share" "info")
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52 ("usr" "share" "info")))
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53 "Directories appended to the end of the info path by default.")
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54
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55 (defun paths-find-site-lisp-directory (roots)
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56 "Find the site Lisp directory of the XEmacs hierarchy."
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57 (paths-find-site-directory roots "site-lisp"
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58 nil
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59 configure-site-directory))
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60
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61 (defun paths-find-site-module-directory (roots)
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62 "Find the site modules directory of the XEmacs hierarchy."
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63 (paths-find-site-directory roots "site-modules"
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64 nil
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65 configure-site-module-directory))
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66
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67 (defun paths-find-lisp-directory (roots)
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68 "Find the main Lisp directory of the XEmacs hierarchy."
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69 (paths-find-version-directory roots "lisp"
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70 nil
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71 configure-lisp-directory))
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72
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73 (defun paths-find-module-directory (roots)
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74 "Find the main modules directory of the XEmacs hierarchy."
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75 (paths-find-architecture-directory roots "modules"
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76 nil configure-module-directory))
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77
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78 (defun paths-construct-load-path
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79 (roots early-package-load-path late-package-load-path last-package-load-path
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80 lisp-directory
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81 &optional site-lisp-directory)
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82 "Construct the load path."
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83 (let* ((envvar-value (getenv "EMACSLOADPATH"))
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84 (env-load-path
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85 (and envvar-value
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86 (paths-decode-directory-path envvar-value 'drop-empties)))
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87 (site-lisp-load-path
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88 (and site-lisp-directory
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89 (paths-find-recursive-load-path (list site-lisp-directory)
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90 paths-load-path-depth)))
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91 (lisp-load-path
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92 (and lisp-directory
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93 (paths-find-recursive-load-path (list lisp-directory)
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94 paths-load-path-depth))))
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95 (append env-load-path
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96 early-package-load-path
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97 site-lisp-load-path
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98 late-package-load-path
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99 lisp-load-path
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100 last-package-load-path)))
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101
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102 (defun paths-construct-module-load-path
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103 (root module-directory &optional site-module-directory)
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104 "Construct the modules load path."
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105 (let* ((envvar-value (getenv "EMACSMODULEPATH"))
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106 (env-module-path
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107 (and envvar-value
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108 (paths-decode-directory-path envvar-value 'drop-empties)))
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109 (site-module-load-path
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110 (and site-module-directory
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111 (paths-find-recursive-load-path (list site-module-directory)
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112 paths-load-path-depth)))
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113 (module-load-path
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114 (and module-directory
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115 (paths-find-recursive-load-path (list module-directory)
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116 paths-load-path-depth))))
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117 (append env-module-path
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118 site-module-load-path
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119 module-load-path)))
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120
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121 (defun paths-construct-info-path (roots early-packages late-packages last-packages)
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122 "Construct the info path."
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123 (let ((info-path-envval (getenv "INFOPATH")))
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124 (paths-uniq-append
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125 (append
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126 (let ((info-directory
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127 (paths-find-version-directory roots "info"
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128 nil
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129 configure-info-directory)))
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130 (and info-directory
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131 (list info-directory)))
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132 (packages-find-package-info-path early-packages)
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133 (packages-find-package-info-path late-packages)
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134 (packages-find-package-info-path last-packages)
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135 (and info-path-envval
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136 (paths-decode-directory-path info-path-envval 'drop-empties)))
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137 (and (null info-path-envval)
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138 (paths-uniq-append
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139 (paths-directories-which-exist configure-info-path)
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140 (paths-directories-which-exist paths-default-info-directories))))))
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141
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142 (defun paths-find-doc-directory (roots)
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143 "Find the documentation directory."
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144 (paths-find-architecture-directory roots "lib-src" nil configure-doc-directory))
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145
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146 (defun paths-find-lock-directory (roots)
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147 "Find the lock directory."
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148 (defvar configure-lock-directory)
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149 (paths-find-site-directory roots "lock" "EMACSLOCKDIR" configure-lock-directory))
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150
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151 (defun paths-find-superlock-file (lock-directory)
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152 "Find the superlock file."
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153 ;; #### There is no such variable configure-superlock-file!
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154 (cond
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155 ((null lock-directory)
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156 nil)
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157 ((and configure-superlock-file
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158 (file-directory-p (file-name-directory configure-superlock-file)))
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159 configure-superlock-file)
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160 (t
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161 (expand-file-name "!!!SuperLock!!!" lock-directory))))
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162
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163 (defun paths-find-exec-directory (roots)
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164 "Find the binary directory."
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165 (paths-find-architecture-directory roots "lib-src"
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166 nil configure-exec-directory))
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167
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168 (defun paths-construct-exec-path (roots exec-directory
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169 early-packages late-packages last-packages)
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170 "Find the binary path."
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171 (append
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172 (let ((path-envval (getenv "PATH")))
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173 (if path-envval
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174 (paths-decode-directory-path path-envval 'drop-empties)))
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175 (packages-find-package-exec-path early-packages)
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176 (packages-find-package-exec-path late-packages)
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177 (let ((emacspath-envval (getenv "EMACSPATH")))
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178 (and emacspath-envval
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179 (split-path emacspath-envval)))
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180 (and exec-directory
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181 (list exec-directory))
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182 (packages-find-package-exec-path last-packages)))
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183
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184 (defun paths-find-data-directory (roots)
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185 "Find the data directory."
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186 (paths-find-version-directory roots "etc" "EMACSDATA" configure-data-directory))
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187
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188 (defun paths-construct-data-directory-list (data-directory
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189 early-packages late-packages last-packages)
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190 "Find the data path."
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191 (append
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192 (packages-find-package-data-path early-packages)
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193 (packages-find-package-data-path late-packages)
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194 (list data-directory)
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195 (packages-find-package-data-path last-packages)))
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196
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197 ;;; setup-paths.el ends here
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