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1 ;;; ediff-ptch.el --- Ediff's patch support
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2
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3 ;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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4
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5 ;; Author: Michael Kifer <kifer@cs.sunysb.edu>
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6
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7 ;; This file is part of GNU Emacs.
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8
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9 ;; GNU Emacs is free software; you can redistribute it and/or modify
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10 ;; it under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; GNU Emacs is distributed in the hope that it will be useful,
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15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ;; GNU General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24
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25 ;;; Code:
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80
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26
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27 (provide 'ediff-ptch)
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28
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134
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29 (defgroup ediff-ptch nil
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30 "Ediff patch support"
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31 :tag "Patch"
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32 :prefix "ediff-"
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33 :group 'ediff)
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34
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80
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35 ;; compiler pacifier
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36 (defvar ediff-window-A)
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37 (defvar ediff-window-B)
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38 (defvar ediff-window-C)
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39 (defvar ediff-use-last-dir)
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40 (defvar ediff-shell)
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41
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42 (eval-when-compile
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43 (let ((load-path (cons (expand-file-name ".") load-path)))
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44 (or (featurep 'ediff-init)
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45 (load "ediff-init.el" nil nil 'nosuffix))
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46 (or (featurep 'ediff)
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47 (load "ediff.el" nil nil 'nosuffix))
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48 ))
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49 ;; end pacifier
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50
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78
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51 (require 'ediff-init)
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52
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53 (defvar ediff-last-dir-patch nil
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54 "Last directory used by an Ediff command for file to patch.")
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55
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56 (defvar ediff-backup-extension
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57 (if (memq system-type '(vax-vms axp-vms emx ms-dos windows-nt windows-95))
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58 "_orig" ".orig")
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59 "Backup extension used by the patch program.
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60 See also `ediff-backup-specs'.")
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61
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62 (defcustom ediff-backup-specs (format "-b %s" ediff-backup-extension)
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63 "*Backup directives to pass to the patch program.
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64 Ediff requires that the old version of the file \(before applying the patch\)
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65 is saved in a file named `the-patch-file.extension'. Usually `extension' is
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66 `.orig', but this can be changed by the user and may depend on the system.
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67 Therefore, Ediff needs to know the backup extension used by the patch program.
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68
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69 Some versions of the patch program let you specify `-b backup-extension'.
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70 Other versions only permit `-b', which assumes some canned extension
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71 \(usually `.orig'\).
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72
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73 Note that both `ediff-backup-extension' and `ediff-backup-specs'
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74 must be properly set. If your patch program takes the option `-b',
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75 but not `-b extension', the variable `ediff-backup-extension' must
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76 still be set so Ediff will know which extension to use."
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77 :type 'string
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78 :group 'ediff-ptch)
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78
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79
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80
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81 (defcustom ediff-patch-default-directory nil
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82 "*Default directory to look for patches."
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83 :type '(choice (const nil) string)
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84 :group 'ediff-ptch)
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85
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86 (defcustom ediff-context-diff-label-regexp
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87 (concat "\\(" ; context diff 2-liner
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88 "^\\*\\*\\* \\([^ \t]+\\)[^*]+[\t ]*\n--- \\([^ \t]+\\)"
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89 "\\|" ; GNU unified format diff 2-liner
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90 "^--- \\([^ \t]+\\)[\t ]+.*\n\\+\\+\\+ \\([^ \t]+\\)"
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91 "\\)")
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92 "*Regexp matching filename 2-liners at the start of each context diff."
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93 :type 'regexp
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94 :group 'ediff-ptch)
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95
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96 (defcustom ediff-patch-program "patch"
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97 "*Name of the program that applies patches.
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98 It is recommended to use GNU-compatible versions."
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99 :type 'string
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100 :group 'ediff-ptch)
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101 (defcustom ediff-patch-options "-f"
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102 "*Options to pass to ediff-patch-program.
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103
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104 Note: the `-b' option should be specified in `ediff-backup-specs'.
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105
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106 It is recommended to pass the `-f' option to the patch program, so it won't ask
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107 questions. However, some implementations don't accept this option, in which
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108 case the default value for this variable should be changed."
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109 :type 'string
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110 :group 'ediff-ptch)
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111
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112 ;; The buffer of the patch file. Local to control buffer.
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113 (ediff-defvar-local ediff-patchbufer nil "")
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114
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115 ;; The buffer where patch displays its diagnostics.
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116 (ediff-defvar-local ediff-patch-diagnostics nil "")
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117
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118 ;; Map of patch buffer. Has the form:
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119 ;; ((filename1 marker1 marker2) (filename2 marker1 marker2) ...)
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120 ;; where filenames are files to which patch would have applied the patch;
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121 ;; marker1 delimits the beginning of the corresponding patch and marker2 does
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122 ;; it for the end.
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123 (ediff-defvar-local ediff-patch-map nil "")
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124
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125 ;; strip prefix from filename
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126 ;; returns /dev/null, if can't strip prefix
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127 (defsubst ediff-file-name-sans-prefix (filename prefix)
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128 (save-match-data
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129 (if (string-match (concat "^" prefix) filename)
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130 (substring filename (match-end 0))
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131 (concat "/null/" filename))))
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132
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133
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134
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135 ;; no longer used
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136 ;; return the number of matches of regexp in buf starting from the beginning
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137 (defun ediff-count-matches (regexp buf)
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138 (ediff-eval-in-buffer buf
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139 (let ((count 0) opoint)
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140 (save-excursion
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141 (goto-char (point-min))
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142 (while (and (not (eobp))
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143 (progn (setq opoint (point))
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144 (re-search-forward regexp nil t)))
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145 (if (= opoint (point))
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146 (forward-char 1)
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147 (setq count (1+ count)))))
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148 count)))
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149
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150 ;; Scan BUF (which is supposed to contain a patch) and make a list of the form
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151 ;; ((filename1 marker1 marker2) (filename2 marker1 marker2) ...)
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152 ;; where filenames are files to which patch would have applied the patch;
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153 ;; marker1 delimits the beginning of the corresponding patch and marker2 does
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154 ;; it for the end. This list is then assigned to ediff-patch-map.
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155 ;; Returns the number of elements in the list ediff-patch-map
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156 (defun ediff-map-patch-buffer (buf)
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157 (ediff-eval-in-buffer buf
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158 (let ((count 0)
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159 (mark1 (move-marker (make-marker) (point-min)))
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160 (mark1-end (point-min))
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161 (possible-file-names '("/dev/null" . "/dev/null"))
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162 mark2-end mark2 filenames
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163 beg1 beg2 end1 end2
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164 patch-map opoint)
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165 (save-excursion
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166 (goto-char (point-min))
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167 (setq opoint (point))
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168 (while (and (not (eobp))
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169 (re-search-forward ediff-context-diff-label-regexp nil t))
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170 (if (= opoint (point))
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171 (forward-char 1) ; ensure progress towards the end
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172 (setq mark2 (move-marker (make-marker) (match-beginning 0))
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173 mark2-end (match-end 0)
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174 beg1 (or (match-beginning 2) (match-beginning 4))
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175 end1 (or (match-end 2) (match-end 4))
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176 beg2 (or (match-beginning 3) (match-beginning 5))
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177 end2 (or (match-end 3) (match-end 5)))
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178 ;; possible-file-names is holding the new file names until we
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179 ;; insert the old file name in the patch map
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180 ;; It is a pair (filename from 1st header line . fn from 2nd line)
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181 (setq possible-file-names
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182 (cons (if (and beg1 end1)
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183 (buffer-substring beg1 end1)
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184 "/dev/null")
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185 (if (and beg2 end2)
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186 (buffer-substring beg2 end2)
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187 "/dev/null")))
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188 ;; check for any `Index:' or `Prereq:' lines, but don't use them
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189 (if (re-search-backward "^Index:" mark1-end 'noerror)
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190 (move-marker mark2 (match-beginning 0)))
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191 (if (re-search-backward "^Prereq:" mark1-end 'noerror)
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192 (move-marker mark2 (match-beginning 0)))
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193
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194 (goto-char mark2-end)
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195
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196 (if filenames
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197 (setq patch-map (cons (list filenames mark1 mark2) patch-map)))
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198 (setq mark1 mark2
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199 mark1-end mark2-end
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200 filenames possible-file-names))
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201 (setq opoint (point)
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202 count (1+ count))))
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203 (setq mark2 (point-max-marker)
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204 patch-map (cons (list possible-file-names mark1 mark2) patch-map))
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205 (setq ediff-patch-map (nreverse patch-map))
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206 count)))
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207
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208 ;; Fix up the file names in the list using the argument FILENAME
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209 ;; Algorithm: find the first file's directory and cut it out from each file
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210 ;; name in the patch. Prepend the directory of FILENAME to each file in the
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211 ;; patch. In addition, the first file in the patch is replaced by FILENAME.
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212 ;; Each file is actually a file-pair of files found in the context diff header
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213 ;; In the end, for each pair, we select the shortest existing file.
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214 ;; Note: Ediff doesn't recognize multi-file patches that are separated
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215 ;; with the `Index:' line. It treats them as a single-file patch.
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216 ;;
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217 ;; Executes inside the patch buffer
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218 (defun ediff-fixup-patch-map (filename)
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219 (setq filename (expand-file-name filename))
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220 (let ((actual-dir (if (file-directory-p filename)
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221 ;; directory part of filename
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222 (file-name-as-directory filename)
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223 (file-name-directory filename)))
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224 ;; directory part of the first file in the patch
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225 (base-dir1 (file-name-directory (car (car (car ediff-patch-map)))))
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226 (base-dir2 (file-name-directory (cdr (car (car ediff-patch-map)))))
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227 )
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228
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229 ;; chop off base-dirs
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230 (mapcar (function (lambda (triple)
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231 (or (string= (car (car triple)) "/dev/null")
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232 (setcar (car triple)
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233 (ediff-file-name-sans-prefix
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234 (car (car triple)) base-dir1)))
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235 (or (string= (cdr (car triple)) "/dev/null")
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236 (setcdr (car triple)
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237 (ediff-file-name-sans-prefix
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238 (cdr (car triple)) base-dir2)))
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239 ))
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240 ediff-patch-map)
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241
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242 ;; take the given file name into account
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243 (or (file-directory-p filename)
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244 (string= "/dev/null" filename)
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245 (progn
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246 (setcar (car ediff-patch-map)
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247 (cons (file-name-nondirectory filename)
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248 (file-name-nondirectory filename)))))
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249
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250 ;; prepend actual-dir
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251 (mapcar (function (lambda (triple)
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252 (if (and (string-match "^/null/" (car (car triple)))
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253 (string-match "^/null/" (cdr (car triple))))
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254 ;; couldn't strip base-dir1 and base-dir2
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255 ;; hence, something wrong
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256 (progn
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257 (with-output-to-temp-buffer ediff-msg-buffer
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258 (princ
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259 (format "
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260 The patch file contains a context diff for
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261
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262 %s
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263 %s
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264
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265 However, Ediff cannot infer the name of the actual file
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266 to be patched on your system. If you know the correct file name,
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267 please enter it now.
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268
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269 If you don't know and still would like to apply patches to
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270 other files, enter /dev/null
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271 "
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272 (substring (car (car triple)) 6)
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273 (substring (cdr (car triple)) 6))))
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274 (let ((directory t)
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275 user-file)
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276 (while directory
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277 (setq user-file
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278 (read-file-name
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279 "Please enter file name: "
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280 actual-dir actual-dir t))
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281 (if (not (file-directory-p user-file))
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282 (setq directory nil)
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283 (setq directory t)
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284 (beep)
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285 (message "%s is a directory" user-file)
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286 (sit-for 2)))
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287 (setcar triple (cons user-file user-file))))
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288 (setcar (car triple)
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289 (expand-file-name
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290 (concat actual-dir (car (car triple)))))
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291 (setcdr (car triple)
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292 (expand-file-name
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293 (concat actual-dir (cdr (car triple))))))
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294 ))
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295 ediff-patch-map)
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296 ;; check for the shorter existing file in each pair and discard the other
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297 ;; one
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298 (mapcar (function (lambda (triple)
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299 (let* ((file1 (car (car triple)))
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300 (file2 (cdr (car triple)))
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301 (f1-exists (file-exists-p file1))
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302 (f2-exists (file-exists-p file2)))
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303 (cond
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304 ((and (< (length file2) (length file1))
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305 f2-exists)
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306 (setcar triple file2))
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307 ((and (< (length file1) (length file2))
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308 f1-exists)
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309 (setcar triple file1))
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310 ((and f1-exists f2-exists
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311 (string= file1 file2))
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312 (setcar triple file1))
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313 ((and f1-exists f2-exists)
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314 (with-output-to-temp-buffer ediff-msg-buffer
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315 (princ (format "
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316 Ediff has inferred that
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317 %s
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318 %s
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319 are possible targets for applying the patch.
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320 Both files seem to be plausible alternatives.
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321
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322 Please advice:
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323 Type `y' to use %s as the target;
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324 Type `n' to use %s as the target.
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325 "
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326 file1 file2 file2 file1)))
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327 (setcar triple
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328 (if (y-or-n-p (format "Use %s ? " file2))
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329 file2 file1)))
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330 (f2-exists (setcar triple file2))
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331 (f1-exists (setcar triple file1))
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332 (t
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333 (with-output-to-temp-buffer ediff-msg-buffer
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334 (princ (format "
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335 Ediff inferred that
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336 %s
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337 %s
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338 are possible alternative targets for this patch.
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339
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340 However, these files do not exist.
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341
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342 Please enter an alternative patch target ...
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343 "
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344 file1 file2)))
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345 (let ((directory t)
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346 target)
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347 (while directory
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348 (setq target (read-file-name
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349 "Please enter a patch target: "
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350 actual-dir actual-dir t))
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351 (if (not (file-directory-p target))
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352 (setq directory nil)
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353 (beep)
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354 (message "%s is a directory" target)
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355 (sit-for 2)))
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356 (setcar triple target)))))))
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357 ediff-patch-map)
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358 ))
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359
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360 (defun ediff-show-patch-diagnostics ()
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361 (interactive)
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362 (cond ((window-live-p ediff-window-A)
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363 (set-window-buffer ediff-window-A ediff-patch-diagnostics))
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364 ((window-live-p ediff-window-B)
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365 (set-window-buffer ediff-window-B ediff-patch-diagnostics))
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366 (t (display-buffer ediff-patch-diagnostics 'not-this-window))))
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367
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368 (defun ediff-get-patch-buffer ()
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369 "Obtain patch buffer. If patch is already in a buffer---use it.
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370 Else, read patch file into a new buffer."
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371 (let ((dir (cond (ediff-patch-default-directory) ; try patch default dir
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372 (ediff-use-last-dir ediff-last-dir-patch)
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373 (t default-directory)))
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374 patch-buf)
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375 (if (y-or-n-p "Is the patch already in a buffer? ")
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376 (setq patch-buf
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377 (get-buffer
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378 (read-buffer
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379 "Which buffer contains the patch? "
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380 (current-buffer) 'must-match)))
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381 (setq patch-buf
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382 (find-file-noselect
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78
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383 (read-file-name "Which file contains the patch? "
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384 dir nil 'must-match))))
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0
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385
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386 (ediff-eval-in-buffer patch-buf
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387 (goto-char (point-min))
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388 (or (ediff-get-visible-buffer-window patch-buf)
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389 (progn
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390 (pop-to-buffer patch-buf 'other-window)
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391 (select-window (previous-window)))))
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392 (ediff-map-patch-buffer patch-buf)
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393 patch-buf))
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394
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395 ;; Dispatch the right patch file function: regular or meta-level,
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396 ;; depending on how many patches are in the patch file.
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397 ;; At present, there is no support for meta-level patches.
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398 ;; Should return either the ctl buffer or the meta-buffer
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399 (defun ediff-dispatch-file-patching-job (patch-buf filename
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400 &optional startup-hooks)
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401 (ediff-eval-in-buffer patch-buf
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402 ;; relativize names in the patch with respect to source-file
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403 (ediff-fixup-patch-map filename)
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404 (if (< (length ediff-patch-map) 2)
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405 (ediff-patch-file-internal
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406 patch-buf
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407 (if (and (not (string-match "^/dev/null" (car (car ediff-patch-map))))
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408 (> (length (car (car ediff-patch-map))) 1))
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409 (car (car ediff-patch-map))
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410 filename)
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411 startup-hooks)
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412 (ediff-multi-patch-internal patch-buf startup-hooks))
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413 ))
|
|
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414
|
|
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415
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416 (defun ediff-patch-buffer-internal (patch-buf buf-to-patch-name
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417 &optional startup-hooks)
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418 (let* ((buf-to-patch (get-buffer buf-to-patch-name))
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419 (file-name-ok (if buf-to-patch (buffer-file-name buf-to-patch)))
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420 (buf-mod-status (buffer-modified-p buf-to-patch))
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421 (multifile-patch-p (> (length (ediff-eval-in-buffer patch-buf
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422 ediff-patch-map)) 1))
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423 default-dir file-name ctl-buf)
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424 (if file-name-ok
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425 (setq file-name file-name-ok)
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426 (if multifile-patch-p
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427 (error
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|
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428 "Can't apply multi-file patches to buffers that visit no files"))
|
|
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429 (ediff-eval-in-buffer buf-to-patch
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430 (setq default-dir default-directory)
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431 (setq file-name (ediff-make-temp-file buf-to-patch))
|
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432 (set-visited-file-name file-name)
|
|
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433 (setq buffer-auto-save-file-name nil) ; don't create auto-save file
|
|
|
434 ;;don't confuse the user with a new bufname
|
|
|
435 (rename-buffer buf-to-patch-name)
|
|
|
436 (set-buffer-modified-p nil)
|
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|
437 (set-visited-file-modtime) ; sync buffer and temp file
|
|
|
438 (setq default-directory default-dir)
|
|
|
439 ))
|
|
|
440
|
|
|
441 ;; dispatch a patch function
|
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442 (setq ctl-buf (ediff-dispatch-file-patching-job
|
|
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443 patch-buf file-name startup-hooks))
|
|
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444
|
|
|
445 (if file-name-ok
|
|
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446 ()
|
|
|
447 ;; buffer wasn't visiting any file,
|
|
|
448 ;; so we will not run meta-level ediff here
|
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|
449 (ediff-eval-in-buffer ctl-buf
|
|
|
450 (delete-file (buffer-file-name ediff-buffer-A))
|
|
|
451 (delete-file (buffer-file-name ediff-buffer-B))
|
|
|
452 (ediff-eval-in-buffer ediff-buffer-A
|
|
|
453 (if default-dir (setq default-directory default-dir))
|
|
|
454 (set-visited-file-name nil)
|
|
|
455 (rename-buffer buf-to-patch-name)
|
|
|
456 (set-buffer-modified-p buf-mod-status))
|
|
|
457 (ediff-eval-in-buffer ediff-buffer-B
|
|
|
458 (setq buffer-auto-save-file-name nil) ; don't create auto-save file
|
|
|
459 (if default-dir (setq default-directory default-dir))
|
|
|
460 (set-visited-file-name nil)
|
|
|
461 (rename-buffer (ediff-unique-buffer-name
|
|
|
462 (concat buf-to-patch-name "_patched") ""))
|
|
|
463 (set-buffer-modified-p t))))
|
|
|
464 ))
|
|
|
465
|
|
|
466 (defun ediff-patch-file-internal (patch-buf source-filename
|
|
|
467 &optional startup-hooks)
|
|
|
468 (setq source-filename (expand-file-name source-filename))
|
|
|
469
|
|
78
|
470 (let* ((shell-file-name ediff-shell)
|
|
0
|
471 (patch-diagnostics (get-buffer-create "*ediff patch diagnostics*"))
|
|
|
472 ;; ediff-find-file may use a temp file to do the patch
|
|
|
473 ;; so, we save source-filename and true-source-filename as a var
|
|
|
474 ;; that initially is source-filename but may be changed to a temp
|
|
|
475 ;; file for the purpose of patching.
|
|
|
476 (true-source-filename source-filename)
|
|
|
477 (target-filename source-filename)
|
|
78
|
478 target-buf buf-to-patch file-name-magic-p
|
|
|
479 patch-return-code ctl-buf backup-style aux-wind)
|
|
0
|
480
|
|
|
481 (if (string-match "-V" ediff-patch-options)
|
|
|
482 (error
|
|
|
483 "Ediff doesn't take the -V option in `ediff-patch-options'--sorry"))
|
|
|
484
|
|
|
485 ;; Make a temp file, if source-filename has a magic file handler (or if
|
|
|
486 ;; it is handled via auto-mode-alist and similar magic).
|
|
|
487 ;; Check if there is a buffer visiting source-filename and if they are in
|
|
|
488 ;; sync; arrange for the deletion of temp file.
|
|
|
489 (ediff-find-file 'true-source-filename 'buf-to-patch
|
|
|
490 'ediff-last-dir-patch 'startup-hooks)
|
|
|
491
|
|
|
492 ;; Check if source file name has triggered black magic, such as file name
|
|
|
493 ;; handlers or auto mode alist, and make a note of it.
|
|
|
494 ;; true-source-filename should be either the original name or a
|
|
|
495 ;; temporary file where we put the after-product of the file handler.
|
|
|
496 (setq file-name-magic-p (not (equal (file-truename true-source-filename)
|
|
|
497 (file-truename source-filename))))
|
|
|
498
|
|
78
|
499 ;; Checkout orig file, if necessary, so that the patched file
|
|
|
500 ;; could be checked back in.
|
|
|
501 (ediff-maybe-checkout buf-to-patch)
|
|
0
|
502
|
|
|
503 (ediff-eval-in-buffer patch-diagnostics
|
|
|
504 (insert-buffer patch-buf)
|
|
|
505 (message "Applying patch ... ")
|
|
|
506 ;; fix environment for gnu patch, so it won't make numbered extensions
|
|
|
507 (setq backup-style (getenv "VERSION_CONTROL"))
|
|
|
508 (setenv "VERSION_CONTROL" nil)
|
|
78
|
509 (setq patch-return-code
|
|
|
510 (call-process-region
|
|
|
511 (point-min) (point-max)
|
|
|
512 shell-file-name
|
|
|
513 t ; delete region (which contains the patch
|
|
|
514 t ; insert output (patch diagnostics) in current buffer
|
|
|
515 nil ; don't redisplay
|
|
|
516 shell-command-switch ; usually -c
|
|
|
517 (format "%s %s %s %s"
|
|
|
518 ediff-patch-program
|
|
|
519 ediff-patch-options
|
|
|
520 ediff-backup-specs
|
|
|
521 (expand-file-name true-source-filename))
|
|
|
522 ))
|
|
|
523
|
|
0
|
524 ;; restore environment for gnu patch
|
|
|
525 (setenv "VERSION_CONTROL" backup-style))
|
|
|
526
|
|
|
527 (message "Applying patch ... done")
|
|
|
528 (message "")
|
|
|
529
|
|
|
530 (switch-to-buffer patch-diagnostics)
|
|
|
531 (sit-for 0) ; synchronize - let the user see diagnostics
|
|
|
532
|
|
78
|
533 (or (and (eq patch-return-code 0) ; patch reported success
|
|
|
534 (file-exists-p
|
|
|
535 (concat true-source-filename ediff-backup-extension)))
|
|
|
536 (progn
|
|
|
537 (with-output-to-temp-buffer ediff-msg-buffer
|
|
|
538 (princ (format "
|
|
|
539 Patch has failed OR the backup version of the patched file was not created by
|
|
|
540 the patch program.
|
|
|
541
|
|
|
542 One reason may be that the values of the variables
|
|
|
543
|
|
|
544 ediff-patch-options = %S
|
|
|
545 ediff-backup-extension = %S
|
|
|
546 ediff-backup-specs = %S
|
|
|
547
|
|
|
548 are not appropriate for the program specified in the variable
|
|
|
549
|
|
|
550 ediff-patch-program = %S
|
|
|
551
|
|
|
552 Another reason could be that the %S program doesn't understand
|
|
|
553 the format of the patch file you used.
|
|
|
554
|
|
|
555 See Ediff on-line manual for more details on these variables.
|
|
|
556 \(Or use a GNU-compatible patch program and stay out of trouble.\)
|
|
|
557
|
|
|
558 Type any key to continue...
|
|
|
559 "
|
|
|
560 ediff-patch-options
|
|
|
561 ediff-backup-extension
|
|
|
562 ediff-backup-specs
|
|
|
563 ediff-patch-program
|
|
|
564 ediff-patch-program)))
|
|
|
565 (beep 1)
|
|
|
566 (if (setq aux-wind (get-buffer-window ediff-msg-buffer))
|
|
|
567 (progn
|
|
|
568 (select-window aux-wind)
|
|
|
569 (goto-char (point-max))))
|
|
|
570 (read-char-exclusive)
|
|
|
571 (if aux-wind (bury-buffer)) ; ediff-msg-buffer
|
|
|
572 (if (setq aux-wind (get-buffer-window patch-diagnostics))
|
|
|
573 (progn
|
|
|
574 (select-window aux-wind)
|
|
|
575 (bury-buffer)))
|
|
|
576 (error "Patch appears to have failed")))
|
|
80
|
577
|
|
0
|
578 ;; If black magic is involved, apply patch to a temp copy of the
|
|
|
579 ;; file. Otherwise, apply patch to the orig copy. If patch is applied
|
|
|
580 ;; to temp copy, we name the result old-name_patched for local files
|
|
|
581 ;; and temp-copy_patched for remote files. The orig file name isn't
|
|
|
582 ;; changed, and the temp copy of the original is later deleted.
|
|
|
583 ;; Without magic, the original file is renamed (usually into
|
|
|
584 ;; old-name_orig) and the result of patching will have the same name as
|
|
|
585 ;; the original.
|
|
|
586 (if (not file-name-magic-p)
|
|
|
587 (ediff-eval-in-buffer buf-to-patch
|
|
78
|
588 (set-visited-file-name
|
|
|
589 (concat source-filename ediff-backup-extension))
|
|
0
|
590 (set-buffer-modified-p nil))
|
|
|
591
|
|
|
592 ;; Black magic in effect.
|
|
|
593 ;; If orig file was remote, put the patched file in the temp directory.
|
|
|
594 ;; If orig file is local, put the patched file in the directory of
|
|
|
595 ;; the orig file.
|
|
|
596 (setq target-filename
|
|
|
597 (concat
|
|
|
598 (if (ediff-file-remote-p (file-truename source-filename))
|
|
|
599 true-source-filename
|
|
|
600 source-filename)
|
|
|
601 "_patched"))
|
|
|
602
|
|
|
603 (rename-file true-source-filename target-filename t)
|
|
|
604
|
|
|
605 ;; arrange that the temp copy of orig will be deleted
|
|
78
|
606 (rename-file (concat true-source-filename ediff-backup-extension)
|
|
0
|
607 true-source-filename t))
|
|
80
|
608
|
|
0
|
609 ;; make orig buffer read-only
|
|
|
610 (setq startup-hooks
|
|
|
611 (cons 'ediff-set-read-only-in-buf-A startup-hooks))
|
|
80
|
612
|
|
0
|
613 ;; set up a buf for the patched file
|
|
|
614 (setq target-buf (find-file-noselect target-filename))
|
|
|
615
|
|
|
616 (setq ctl-buf
|
|
|
617 (ediff-buffers-internal
|
|
|
618 buf-to-patch target-buf nil
|
|
|
619 startup-hooks 'epatch))
|
|
|
620 (ediff-eval-in-buffer ctl-buf
|
|
|
621 (setq ediff-patchbufer patch-buf
|
|
|
622 ediff-patch-diagnostics patch-diagnostics))
|
|
|
623
|
|
|
624 (bury-buffer patch-diagnostics)
|
|
|
625 (message "Type `P', if you need to see patch diagnostics")
|
|
|
626 ctl-buf))
|
|
|
627
|
|
|
628 (defun ediff-multi-patch-internal (patch-buf &optional startup-hooks)
|
|
|
629 (let (meta-buf)
|
|
|
630 (setq startup-hooks
|
|
|
631 ;; this sets various vars in the meta buffer inside
|
|
|
632 ;; ediff-prepare-meta-buffer
|
|
|
633 (cons (` (lambda ()
|
|
|
634 ;; tell what to do if the user clicks on a session record
|
|
|
635 (setq ediff-session-action-function
|
|
|
636 'ediff-patch-file-form-meta
|
|
|
637 ediff-meta-patchbufer patch-buf)
|
|
|
638 ))
|
|
|
639 startup-hooks))
|
|
|
640 (setq meta-buf (ediff-prepare-meta-buffer
|
|
|
641 'ediff-filegroup-action
|
|
|
642 (ediff-eval-in-buffer patch-buf
|
|
|
643 ;; nil replaces a regular expression
|
|
|
644 (cons (list nil (format "%S" patch-buf))
|
|
|
645 ediff-patch-map))
|
|
|
646 "*Ediff Session Group Panel"
|
|
|
647 'ediff-redraw-directory-group-buffer
|
|
|
648 'ediff-multifile-patch
|
|
|
649 startup-hooks))
|
|
|
650 (ediff-show-meta-buffer meta-buf)
|
|
|
651 ))
|
|
|
652
|
|
|
653
|
|
|
654
|
|
|
655
|
|
|
656 ;;; Local Variables:
|
|
|
657 ;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun)
|
|
|
658 ;;; eval: (put 'ediff-eval-in-buffer 'lisp-indent-hook 1)
|
|
78
|
659 ;;; eval: (put 'ediff-eval-in-buffer 'edebug-form-spec '(form body))
|
|
0
|
660 ;;; End:
|
|
|
661
|
|
|
662 ;;; ediff-ptch.el ends here
|
