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1 ;;; package-admin.el --- Installation and Maintenance of XEmacs packages
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2
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3 ;; Copyright (C) 1997 by Free Software Foundation, Inc.
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4 ;; Copyright (C) 2003, Steve Youngs.
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5
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6 ;; Author: SL Baur <steve@xemacs.org>
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7 ;; Keywords: internal
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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24 ;; 02111-1307, USA.
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25
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26 ;;; Synched up with: Not in FSF
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27
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28 ;;; Commentary:
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29
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30 ;; First pass at lisp front end to package maintenance.
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31
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32 ;;; Code:
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33
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34 (require 'config)
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35
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36 (defvar package-admin-xemacs (concat invocation-directory invocation-name)
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37 "Location of XEmacs binary to use.")
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38
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39 (defvar package-admin-temp-buffer "*Package Output*"
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40 "Temporary buffer where output of backend commands is saved.")
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41
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42 (defvar package-admin-install-function (if (eq system-type 'windows-nt)
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43 'package-admin-install-function-mswindows
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44 'package-admin-default-install-function)
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45 "The function to call to install a package.
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46 Three args are passed: FILENAME PKG-DIR BUFFER
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47 Install package FILENAME into directory PKG-DIR, with any messages output
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48 to buffer BUFFER.")
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49
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50 (defvar package-admin-error-messages '(
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51 "No space left on device"
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52 "No such file or directory"
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53 "Filename too long"
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54 "Read-only file system"
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55 "File too large"
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56 "Too many open files"
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57 "Not enough space"
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58 "Permission denied"
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59 "Input/output error"
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60 "Out of memory"
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61 "Unable to create directory"
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62 "Directory checksum error"
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63 "Cannot exclusively open file"
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64 "corrupted file"
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65 "incomplete .* tree"
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66 "Bad table"
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67 "corrupt input"
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68 "invalid compressed data"
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69 "too many leaves in Huffman tree"
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70 "not a valid zip file"
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71 "first entry not deflated or stored"
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72 "encrypted file --"
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73 "unexpected end of file"
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74 )
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75 "Regular expressions of possible error messages.
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76 After each package extraction, the `package-admin-temp-buffer' buffer is
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77 scanned for these messages. An error code is returned if one of these are
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78 found.
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79
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80 This is awful, but it exists because error return codes aren't reliable
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81 under MS Windows.")
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82
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83 (defvar package-admin-tar-filename-regexps
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84 '(
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85 ;; GNU tar:
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86 ;; drwxrwxr-x john/doe 123 1997-02-18 15:48 pathname
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87 "\\S-+\\s-+[-a-z0-9_/]+\\s-+[0-9]+\\s-+[-0-9]+\\s-+[0-9:]+\\s-+\\(\\S-.*\\)"
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88 ;; HP-UX & SunOS tar:
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89 ;; rwxrwxr-x 501/501 123 Feb 18 15:46 1997 pathname
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90 ;; Solaris tar (phooey!):
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91 ;; rwxrwxr-x501/501 123 Feb 18 15:46 1997 pathname
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92 ;; AIX tar:
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93 ;; -rw-r--r-- 147 1019 32919 Mar 26 12:00:09 1992 pathname
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94 "\\S-+\\s-*[-a-z0-9_]+[/ ][-a-z0-9_]+\\s-+[0-9]+\\s-+[a-z][a-z][a-z]\\s-+[0-9]+\\s-+[0-9:]+\\s-+[0-9]+\\s-+\\(\\S-.*\\)"
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95
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96 ;; djtar:
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97 ;; drwx Aug 31 02:01:41 1998 123 pathname
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98 "\\S-+\\s-+[a-z][a-z][a-z]\\s-+[0-9]+\\s-+[0-9:]+\\s-+[0-9]+\\s-+[0-9]+\\s-+\\(\\S-.*\\)"
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99
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100 )
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101 "List of regexps to use to search for tar filenames.
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102 Note that \"\\(\" and \"\\)\" must be used to delimit the pathname (as
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103 match #1). Don't put \"^\" to match the beginning of the line; this
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104 is already implicit, as `looking-at' is used. Filenames can,
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105 unfortunately, contain spaces, so be careful in constructing any
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106 regexps.")
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107
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628
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108 (defvar package-install-hook nil
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109 "*List of hook functions to be called when a new package is successfully
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110 installed. The hook function is passed two arguments: the package name, and
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111 the install directory.")
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112
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113 (defvar package-delete-hook nil
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114 "*List of hook functions to be called when a package is deleted. The
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115 hook is called *before* the package is deleted. The hook function is passed
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116 two arguments: the package name, and the install directory.")
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117
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118 (defun package-admin-install-function-mswindows (file pkg-dir buffer)
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119 "Install function for mswindows."
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120 (let ((default-directory (file-name-as-directory pkg-dir)))
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121 (unless (file-directory-p default-directory)
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122 (make-directory default-directory t))
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123 (call-process "minitar" nil buffer t file)))
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124
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444
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125 (defun package-admin-default-install-function (filename pkg-dir buffer)
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126 "Default function to install a package.
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127 Install package FILENAME into directory PKG-DIR, with any messages output
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128 to BUFFER."
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129 (let* ((pkg-dir (file-name-as-directory pkg-dir))
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130 (default-directory pkg-dir)
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131 (filename (expand-file-name filename)))
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132 (unless (file-directory-p pkg-dir)
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133 (make-directory pkg-dir t))
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134 ;; Don't assume GNU tar.
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135 (if (shell-command (concat "gunzip -c " filename " | tar xvf -") buffer)
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136 0
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137 1)))
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138
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139 ;; A few things needed by the following 2 functions.
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140 (eval-when-compile
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141 (require 'packages)
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142 (autoload 'package-get-info "package-get")
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143 (autoload 'paths-decode-directory-path "find-paths")
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144 (defvar package-get-install-to-user-init-directory))
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145
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146 (defun package-admin-find-top-directory (type &optional user-dir)
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147 "Return the top level directory for a package.
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148
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149 Argument TYPE is a symbol that determines the type of package we're
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150 trying to find a directory for.
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151
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152 Optional Argument USER-DIR if non-nil use directories off
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153 `early-package-directories'.
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154
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155 If we still can't find a suitable directory, return nil.
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156
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157 Possible values for TYPE are:
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158
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159 std == For \"standard\" packages that go in '/xemacs-packages/'
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160 mule == For \"mule\" packages that go in '/mule-packages/'
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161 site == For \"unsupported\" packages that go in '/site-packages/'
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162 "
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163 (let* ((hierarchies late-package-hierarchies)
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164
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165 (hierarchy-suffix
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166 (file-name-as-directory
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167 (cond
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168 ((eq type 'std) "xemacs-packages")
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169 ((eq type 'mule) "mule-packages")
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170 ((eq type 'site) "site-packages"))))
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171 (suffix-length (length hierarchy-suffix))
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172 top-dir)
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3179
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173
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174 (if user-dir
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175 (expand-file-name hierarchy-suffix
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176 (if configure-early-package-directories
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177 (car configure-early-package-directories)
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178 user-init-directory))
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179
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180 (while hierarchies
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181 (if (string-equal (substring (car hierarchies) (- suffix-length))
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182 hierarchy-suffix)
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183 (setq top-dir (car hierarchies)))
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184 (setq hierarchies (cdr hierarchies)))
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185 top-dir)))
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186
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187
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188 (defun package-admin-get-install-dir (package &optional pkg-dir)
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189 "Find a suitable installation directory for a package.
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190
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191 Argument PACKAGE is the package to find a installation directory for.
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192 Optional Argument PKG-DIR, if non-nil is a directory to use for
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193 installation.
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194
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195 If PKG-DIR is non-nil and writable, return that. Otherwise check to
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196 see if the PACKAGE is already installed and return that location, if
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197 it is writable. Finally, fall back to the `user-init-directory' if
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198 all else fails. As a side effect of installing packages under
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199 `user-init-directory' these packages become part of `early-package-hierarchies'."
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200 ;; If pkg-dir specified, return that if writable.
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201 (if (and pkg-dir
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202 (file-writable-p (directory-file-name pkg-dir)))
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203 pkg-dir
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204 ;; If the user want her packages under ~/.xemacs/, do so.
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205 (let ((type (package-get-info package 'category)))
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206 (if package-get-install-to-user-init-directory
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207 (progn
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208 (cond ((equal type "standard")
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209 (setq pkg-dir (package-admin-find-top-directory 'std 'user-dir)))
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210 ((equal type "mule")
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211 (setq pkg-dir (package-admin-find-top-directory 'mule 'user-dir))))
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212 pkg-dir)
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213 ;; Maybe the package has been installed before, if so, return
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214 ;; that directory.
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215 (let ((package-feature (intern-soft (concat
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216 (symbol-name package) "-autoloads")))
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217 autoload-dir)
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218 (when (and (not (eq package 'unknown))
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219 (featurep package-feature)
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220 (setq autoload-dir (feature-file package-feature))
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221 (setq autoload-dir (file-name-directory autoload-dir))
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222 (member autoload-dir (append early-package-load-path late-package-load-path)))
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223 ;; Find the corresponding entry in late-package
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224 (setq pkg-dir
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225 (car-safe (member-if (lambda (h)
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226 (string-match (concat "^" (regexp-quote h))
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227 autoload-dir))
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228 (append (cdr early-package-hierarchies) late-package-hierarchies)))))
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229 (if (and pkg-dir
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230 (file-writable-p (directory-file-name pkg-dir)))
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231 pkg-dir
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232 ;; OK, the package hasn't been previously installed so we need
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233 ;; to guess where it should go.
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234 (cond ((equal type "standard")
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235 (setq pkg-dir (package-admin-find-top-directory 'std)))
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236 ((equal type "mule")
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237 (setq pkg-dir (package-admin-find-top-directory 'mule)))
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238 (t
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239 (error 'invalid-operation
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240 "Invalid package type")))
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241 (if (and pkg-dir
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242 (file-writable-p (directory-file-name pkg-dir)))
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243 pkg-dir
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244 ;; Oh no! Either we still haven't found a suitable
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245 ;; directory, or we can't write to the one we did find.
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246 ;; Drop back to the `user-init-directory'.
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247 (if (y-or-n-p (format "Directory isn't writable, use %s instead? "
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248 user-init-directory))
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249 (progn
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250 (cond ((equal type "standard")
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251 (setq pkg-dir (package-admin-find-top-directory 'std 'user-dir)))
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252 ((equal type "mule")
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253 (setq pkg-dir (package-admin-find-top-directory 'mule 'user-dir)))
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254 (t
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255 (error 'invalid-operation
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256 "Invalid package type")))
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1378
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257 ;; Turn on `package-get-install-to-user-init-directory'
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258 ;; so we don't get asked for each package we try to
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259 ;; install in this session.
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260 (setq package-get-install-to-user-init-directory t)
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261 pkg-dir)
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262 ;; If we get to here XEmacs can't make up its mind and
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263 ;; neither can the user, nothing left to do except barf. :-(
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264 (error 'search-failed
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265 (format
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266 "Can't find suitable installation directory for package: %s"
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267 package))))))))))
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268
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269 (defun package-admin-get-manifest-file (pkg-topdir package)
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270 "Return the name of the MANIFEST file for package PACKAGE.
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271 Note that PACKAGE is a symbol, and not a string."
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272 (let ((dir (file-name-as-directory
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273 (expand-file-name "pkginfo" pkg-topdir))))
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274 (expand-file-name (concat "MANIFEST." (symbol-name package)) dir)))
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275
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276 (defun package-admin-check-manifest (pkg-outbuf pkg-topdir)
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277 "Check for a MANIFEST.<package> file in the package distribution.
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278 If it doesn't exist, create and write one.
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279 PKG-OUTBUF is the buffer that holds the output from `tar', and PKG-TOPDIR
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280 is the top-level directory under which the package was installed."
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281 (let ((manifest-buf " *pkg-manifest*")
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282 (old-case-fold-search case-fold-search)
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283 regexp package-name pathname regexps)
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428
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284 (unwind-protect
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285 (save-excursion ;; Probably redundant.
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286 (set-buffer (get-buffer pkg-outbuf)) ;; Probably already the current buffer.
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428
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287 (goto-char (point-min))
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288
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289 ;; Make filenames case-insensitive, if necessary
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290 (if (eq system-type 'windows-nt)
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291 (setq case-fold-search t))
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292
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293 (setq regexp (concat "\\bpkginfo"
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294 (char-to-string directory-sep-char)
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295 "MANIFEST\\...*"))
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428
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296
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297 ;; Look for the manifest.
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298 (if (not (re-search-forward regexp nil t))
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299 (progn
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300 ;; We didn't find a manifest. Make one.
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301
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302 ;; Yuk. We weren't passed the package name, and so we have
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303 ;; to dig for it. Look for it as the subdirectory name below
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304 ;; "lisp", or "man".
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428
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305 ;; Here, we don't use a single regexp because we want to search
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306 ;; the directories for a package name in a particular order.
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307 (if (catch 'done
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308 (let ((dirs '("lisp" "man"))
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309 rexp)
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428
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310 (while dirs
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311 (setq rexp (concat "\\b" (car dirs)
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312 "[\\/]\\([^\\/]+\\)[\//]"))
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313 (if (re-search-forward rexp nil t)
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314 (throw 'done t))
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315 (setq dirs (cdr dirs)))))
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428
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316 (progn
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317 (setq package-name (buffer-substring (match-beginning 1)
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318 (match-end 1)))
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319
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320 ;; Get and erase the manifest buffer
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321 (setq manifest-buf (get-buffer-create manifest-buf))
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322 (buffer-disable-undo manifest-buf)
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323 (erase-buffer manifest-buf)
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324
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325 ;; Now, scan through the output buffer, looking for
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326 ;; file and directory names.
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327 (goto-char (point-min))
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328 ;; for each line ...
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329 (while (< (point) (point-max))
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330 (beginning-of-line)
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331 (setq pathname nil)
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332
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333 ;; scan through the regexps, looking for a pathname
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334 (if (catch 'found-path
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335 (setq regexps package-admin-tar-filename-regexps)
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336 (while regexps
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337 (if (looking-at (car regexps))
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338 (progn
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339 (setq pathname
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340 (buffer-substring
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341 (match-beginning 1)
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342 (match-end 1)))
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343 (throw 'found-path t)))
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344 (setq regexps (cdr regexps))))
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428
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345 (progn
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346 ;; found a pathname -- add it to the manifest
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347 ;; buffer
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348 (save-excursion
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349 (set-buffer manifest-buf)
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350 (goto-char (point-max))
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1365
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351 (insert pathname "\n"))))
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352 (forward-line 1))
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428
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353
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354 ;; Processed all lines.
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355 ;; Now, create the file, pkginfo/MANIFEST.<pkgname>
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356
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357 ;; We use `expand-file-name' instead of `concat',
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358 ;; for portability.
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359 (setq pathname (expand-file-name "pkginfo"
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360 pkg-topdir))
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361 ;; Create pkginfo, if necessary
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362 (if (not (file-directory-p pathname))
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363 (make-directory pathname))
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444
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364 (setq pathname (expand-file-name
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428
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365 (concat "MANIFEST." package-name)
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366 pathname))
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367 (save-excursion
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368 (set-buffer manifest-buf)
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369 ;; Put the files in sorted order
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776
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370 (if-fboundp 'sort-lines
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371 (sort-lines nil (point-min) (point-max))
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1365
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372 (warn "`xemacs-base' not installed, MANIFEST.%s not sorted"
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373 package-name))
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428
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374 ;; Write the file.
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375 ;; Note that using `write-region' *BYPASSES* any check
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376 ;; to see if XEmacs is currently editing/visiting the
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377 ;; file.
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1365
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378 (write-region (point-min) (point-max) pathname))
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379 (kill-buffer manifest-buf))))))
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428
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380 ;; Restore old case-fold-search status
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1365
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381 (setq case-fold-search old-case-fold-search))))
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428
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382
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383 ;;;###autoload
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384 (defun package-admin-add-binary-package (file &optional pkg-dir)
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385 "Install a pre-bytecompiled XEmacs package into package hierarchy."
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386 (interactive "fPackage tarball: ")
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387 (let ((buf (get-buffer-create package-admin-temp-buffer))
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388 (status 1)
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1365
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389 start err-list)
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428
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390 (setq pkg-dir (package-admin-get-install-dir 'unknown pkg-dir))
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391 ;; Ensure that the current directory doesn't change
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392 (save-excursion
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393 (set-buffer buf)
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394 ;; This is not really needed
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395 (setq default-directory (file-name-as-directory pkg-dir))
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396 (setq case-fold-search t)
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397 (buffer-disable-undo)
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398 (goto-char (setq start (point-max)))
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399 (if (= 0 (setq status (funcall package-admin-install-function
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400 file pkg-dir buf)))
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401 (progn
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402 ;; First, check for errors.
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403 ;; We can't necessarily rely upon process error codes.
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404 (catch 'done
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405 (goto-char start)
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406 (setq err-list package-admin-error-messages)
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407 (while err-list
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408 (if (re-search-forward (car err-list) nil t)
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409 (progn
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410 (setq status 1)
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1365
|
411 (throw 'done nil)))
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|
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412 (setq err-list (cdr err-list))))
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428
|
413 ;; Make sure that the MANIFEST file exists
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1365
|
414 (package-admin-check-manifest buf pkg-dir))))
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415 status))
|
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428
|
416
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|
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417 (defun package-admin-rmtree (directory)
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418 "Delete a directory and all of its contents, recursively.
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419 This is a feeble attempt at making a portable rmdir."
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420 (setq directory (file-name-as-directory directory))
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421 (let ((files (directory-files directory nil nil nil t))
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422 (dirs (directory-files directory nil nil nil 'dirs)))
|
|
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423 (while dirs
|
|
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424 (if (not (member (car dirs) '("." "..")))
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425 (let ((dir (expand-file-name (car dirs) directory)))
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|
426 (condition-case err
|
|
|
427 (if (file-symlink-p dir) ;; just in case, handle symlinks
|
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428 (delete-file dir)
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|
429 (package-admin-rmtree dir))
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|
|
430 (file-error
|
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|
431 (message "%s: %s: \"%s\"" (nth 1 err) (nth 2 err) (nth 3 err)))))
|
|
|
432 (setq dirs (cdr dirs))))
|
|
|
433 (while files
|
|
|
434 (condition-case err
|
|
|
435 (delete-file (expand-file-name (car files) directory))
|
|
|
436 (file-error
|
|
|
437 (message "%s: %s: \"%s\"" (nth 1 err) (nth 2 err) (nth 3 err))))
|
|
|
438 (setq files (cdr files)))
|
|
|
439 (condition-case err
|
|
|
440 (delete-directory directory)
|
|
|
441 (file-error
|
|
|
442 (message "%s: %s: \"%s\"" (nth 1 err) (nth 2 err) (nth 3 err))))))
|
|
|
443
|
|
|
444 (defun package-admin-get-lispdir (pkg-topdir package)
|
|
|
445 (let (package-lispdir)
|
|
|
446 (if (and (setq package-lispdir (expand-file-name "lisp" pkg-topdir))
|
|
|
447 (setq package-lispdir (expand-file-name (symbol-name package)
|
|
|
448 package-lispdir))
|
|
|
449 (file-accessible-directory-p package-lispdir))
|
|
1365
|
450 package-lispdir)))
|
|
428
|
451
|
|
|
452 (defun package-admin-delete-binary-package (package pkg-topdir)
|
|
|
453 "Delete a binary installation of PACKAGE below directory PKG-TOPDIR.
|
|
|
454 PACKAGE is a symbol, not a string."
|
|
1365
|
455 (let (manifest-file package-lispdir dirs file)
|
|
428
|
456 (setq pkg-topdir (package-admin-get-install-dir package pkg-topdir))
|
|
|
457 (setq manifest-file (package-admin-get-manifest-file pkg-topdir package))
|
|
628
|
458 (run-hook-with-args 'package-delete-hook package pkg-topdir)
|
|
428
|
459 (if (file-exists-p manifest-file)
|
|
|
460 (progn
|
|
|
461 ;; The manifest file exists! Use it to delete the old distribution.
|
|
|
462 (message "Removing old files for package \"%s\" ..." package)
|
|
|
463 (sit-for 0)
|
|
1365
|
464 (with-temp-buffer
|
|
428
|
465 (buffer-disable-undo)
|
|
|
466 (erase-buffer)
|
|
|
467 (insert-file-contents manifest-file)
|
|
|
468 (goto-char (point-min))
|
|
|
469
|
|
|
470 ;; For each entry in the MANIFEST ...
|
|
|
471 (while (< (point) (point-max))
|
|
|
472 (beginning-of-line)
|
|
|
473 (setq file (expand-file-name (buffer-substring
|
|
|
474 (point)
|
|
|
475 (point-at-eol))
|
|
|
476 pkg-topdir))
|
|
|
477 (if (file-directory-p file)
|
|
|
478 ;; Keep a record of each directory
|
|
|
479 (setq dirs (cons file dirs))
|
|
|
480 ;; Delete each file.
|
|
|
481 ;; Make sure that the file is writable.
|
|
|
482 ;; (This is important under MS Windows.)
|
|
|
483 ;; I do not know why it important under MS Windows but
|
|
629
|
484 ;; 1. It bombs out when the file does not exist. This can be condition-cased
|
|
428
|
485 ;; 2. If I removed the write permissions, I do not want XEmacs to just ignore them.
|
|
|
486 ;; If it wants to, XEmacs may ask, but that is about all
|
|
|
487 ;; (set-file-modes file 438) ;; 438 -> #o666
|
|
|
488 ;; Note, user might have removed the file!
|
|
|
489 (condition-case ()
|
|
|
490 (delete-file file)
|
|
444
|
491 (error nil))) ;; We may want to turn the error into a Warning?
|
|
428
|
492 (forward-line 1))
|
|
444
|
493
|
|
428
|
494 ;; Delete empty directories.
|
|
|
495 (if dirs
|
|
1365
|
496 (progn
|
|
|
497 (mapc
|
|
|
498 (lambda (dir)
|
|
|
499 (condition-case ()
|
|
|
500 (delete-directory dir)))
|
|
|
501 dirs)))
|
|
428
|
502 ;; Delete the MANIFEST file
|
|
|
503 ;; (set-file-modes manifest-file 438) ;; 438 -> #o666
|
|
|
504 ;; Note. Packages can have MANIFEST in MANIFEST.
|
|
|
505 (condition-case ()
|
|
|
506 (delete-file manifest-file)
|
|
|
507 (error nil)) ;; Do warning?
|
|
1365
|
508 (message "Removing old files for package \"%s\" ... done" package)))
|
|
|
509 ;; The manifest file doesn't exist. Fallback to just deleting the
|
|
|
510 ;; package-specific lisp directory, if it exists.
|
|
|
511 ;;
|
|
|
512 ;; Delete old lisp directory, if any
|
|
|
513 ;; Gads, this is ugly. However, we're not supposed to use `concat'
|
|
|
514 ;; in the name of portability.
|
|
|
515 (setq package-lispdir (package-admin-get-lispdir pkg-topdir package))
|
|
1378
|
516 (when package-lispdir
|
|
|
517 (message "Removing old lisp directory \"%s\" ..." package-lispdir)
|
|
|
518 (sit-for 0)
|
|
|
519 (package-admin-rmtree package-lispdir)
|
|
|
520 (message "Removing old lisp directory \"%s\" ... done" package-lispdir)))
|
|
428
|
521 ;; Delete the package from the database of installed packages.
|
|
|
522 (package-delete-name package)))
|
|
|
523
|
|
|
524 (provide 'package-admin)
|
|
|
525
|
|
|
526 ;;; package-admin.el ends here
|
