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1 ;;; find-dired.el --- run a `find' command and dired the output
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2
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3 ;;; Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
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4
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5 ;; Author: Roland McGrath <roland@gnu.ai.mit.edu>,
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6 ;; Sebastian Kremer <sk@thp.uni-koeln.de>
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7 ;; Keywords: unix
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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, 675 Mass Ave, Cambridge, MA 02139, USA.
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24
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25 ;;; Synched up with: FSF 19.30.
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26
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27 ;;; Commentary:
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28
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29 ;; To bind the following functionality to a key, put, e.g.:
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30 ;;
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31 ;; (global-set-key "\C-cf" 'find-dired)
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32 ;; (global-set-key "\C-cn" 'find-name-dired)
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33 ;; (global-set-key "\C-cl" 'find-grep-dired)
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34 ;;
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35 ;; in your ~/.emacs.
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36
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37 ;;; Code:
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38
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39 (require 'dired)
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40
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41 ;; find's -ls corresponds to these switches.
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42 ;; Note -b, at least GNU find quotes spaces etc. in filenames
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43 ;;;###autoload
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44 (defvar find-ls-option (purecopy
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45 ;; XEmacs: add purecopy
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46 (if (eq system-type 'berkeley-unix) '("-ls" . "-gilsb")
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47 '("-exec ls -ld {} \\;" . "-ld")))
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48 "*Description of the option to `find' to produce an `ls -l'-type listing.
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49 This is a cons of two strings (FIND-OPTION . LS-SWITCHES). FIND-OPTION
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50 gives the option (or options) to `find' that produce the desired output.
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51 LS-SWITCHES is a list of `ls' switches to tell dired how to parse the output.")
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52
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53 ;;;###autoload
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54 (defvar find-grep-options (purecopy
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55 ;; XEmacs: add purecopy
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56 (if (eq system-type 'berkeley-unix) "-s" "-q"))
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57 "*Option to grep to be as silent as possible.
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58 On Berkeley systems, this is `-s'; on Posix, and with GNU grep, `-q' does it.
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59 On other systems, the closest you can come is to use `-l'.")
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60
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61 ;; XEmacs additions: next two variables.
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62
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63 ;;;###autoload
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64 (defvar find-dired-multiple-buffers nil
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65 "*If non-nil, generates a new buffer for each find")
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66
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67 (defvar find-dired-dir-history nil
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68 "History of directories used by find-dired")
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69
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70 (defvar find-args nil
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71 "Last arguments given to `find' by \\[find-dired].")
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72
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73 (defvar find-args-history nil
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74 "Last arguments given to `find' by \\[find-dired].")
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75
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76 ;; XEmacs: various changes in next function.
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77
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78 ;;;###autoload
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79 (defun find-dired (dir args)
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80 "Run `find' and go into dired-mode on a buffer of the output.
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81 The command run (after changing into DIR) is
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82
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83 find . \\( ARGS \\) -ls"
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84 (interactive (list (read-file-name "Run find in directory: "
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85 nil "" t nil 'find-dired-dir-history)
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86 (if (featurep 'gmhist)
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87 (read-with-history-in 'find-args-history
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88 "Run find (with args): ")
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89 (read-string "Run find (with args): "
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90 (or (and (fboundp 'symbol-near-point)
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91 (symbol-near-point))
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92 (car find-args-history))
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93 'find-args-history))))
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94 ;; Expand DIR ("" means default-directory), and make sure it has a
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95 ;; trailing slash.
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96 (setq dir (file-name-as-directory (expand-file-name dir)))
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97 ;; Check that it's really a directory.
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98 (or (file-directory-p dir)
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99 (error "find-dired needs a directory: %s" dir))
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100 (switch-to-buffer-other-window (if find-dired-multiple-buffers
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101 (generate-new-buffer (concat "*Find-in-"
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102 (file-name-nondirectory (directory-file-name dir))
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103 "/..*"))
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104 (get-buffer-create "*Find*")))
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105 (widen)
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106 (kill-all-local-variables)
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107 (setq buffer-read-only nil)
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108 (erase-buffer)
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109 (setq default-directory dir
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110 find-args args ; save for next interactive call
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111 args (concat "find . "
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112 (if (string= args "")
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113 ""
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114 (concat "\\( " args " \\) "))
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115 (car find-ls-option)))
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116 ;; The next statement will bomb in classic dired (no optional arg allowed)
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117 (dired-mode dir (cdr find-ls-option))
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118 ;; This really should rerun the find command, but I don't
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119 ;; have time for that.
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120 (let ((keymap (make-sparse-keymap)))
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121 (set-keymap-parents keymap (list (current-local-map)))
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122 (define-key keymap "g" 'undefined)
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123 (use-local-map keymap))
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124 ;; Set subdir-alist so that Tree Dired will work:
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125 (if (fboundp 'dired-simple-subdir-alist)
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126 ;; will work even with nested dired format (dired-nstd.el,v 1.15
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127 ;; and later)
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128 (dired-simple-subdir-alist)
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129 ;; else we have an ancient tree dired (or classic dired, where
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130 ;; this does no harm)
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131 (set (make-local-variable 'dired-subdir-alist)
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132 (list (cons default-directory (point-min-marker)))))
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133 (setq buffer-read-only nil)
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134 ;; Subdir headlerline must come first because the first marker in
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135 ;; subdir-alist points there.
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136 (insert " " dir ":\n")
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137 ;; Make second line a ``find'' line in analogy to the ``total'' or
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138 ;; ``wildcard'' line.
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139 (insert " " args "\n")
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140 ;; Start the find process
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141 (message "Searching .... (but you can continue other work)")
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142 (sit-for 0)
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143 (let ((proc (start-process-shell-command "find" (current-buffer) args)))
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144 (set-process-filter proc (function find-dired-filter))
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145 (set-process-sentinel proc (function find-dired-sentinel))
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146 ;; Initialize the process marker; it is used by the filter.
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147 (move-marker (process-mark proc) 1 (current-buffer)))
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148 (setq modeline-process '(": %s")))
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149
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150 ;;;###autoload
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151 (defun find-name-dired (dir pattern)
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152 "Search DIR recursively for files matching the globbing pattern PATTERN,
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153 and run dired on those files.
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154 PATTERN is a shell wildcard (not an Emacs regexp) and need not be quoted.
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155 The command run (after changing into DIR) is
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156
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157 find . -name 'PATTERN' -ls"
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158 (interactive
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159 "DFind-name (directory): \nsFind-name (filename wildcard): ")
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160 (find-dired dir (concat "-name '" pattern "'")))
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161
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162 ;; This functionality suggested by
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163 ;; From: oblanc@watcgl.waterloo.edu (Olivier Blanc)
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164 ;; Subject: find-dired, lookfor-dired
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165 ;; Date: 10 May 91 17:50:00 GMT
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166 ;; Organization: University of Waterloo
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167
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168 (defalias 'lookfor-dired 'find-grep-dired)
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169
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170 ;; XEmacs addition
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171 (defvar find-grep-dired-history nil
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172 "history for find-grep-dired input")
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173
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174 ;;;###autoload
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175 (defun find-grep-dired (dir args)
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176 "Find files in DIR containing a regexp ARG and start Dired on output.
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177 The command run (after changing into DIR) is
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178
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179 find . -type f -exec test -r {} \\\; -exec egrep -s ARG {} \\\; -ls
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180
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181 Thus ARG can also contain additional grep options."
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182 (interactive
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183 ;; XEmacs improvements here.
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184 (list (read-string "Find-grep (directory): "
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185 default-directory 'find-dired-dir-history)
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186 (read-string "Find-grep (grep args): " (and (fboundp 'symbol-near-point)
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187 (symbol-near-point))
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188 'find-grep-dired-history)))
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189 ;; find -exec doesn't allow shell i/o redirections in the command,
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190 ;; or we could use `grep -l >/dev/null'
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191 (find-dired dir
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192 ;; XEmacs improvements here.
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193 (concat "-type f -exec test -r {} \\\; -exec egrep "
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194 find-grep-options " " args " {} \\\; ")))
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195
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196 (defun find-dired-filter (proc string)
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197 ;; Filter for \\[find-dired] processes.
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198 (let ((buf (process-buffer proc)))
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199 (if (buffer-name buf) ; not killed?
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200 (save-excursion
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201 (set-buffer buf)
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202 (save-restriction
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203 (widen)
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204 (save-excursion
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205 (let ((buffer-read-only nil)
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206 (end (point-max)))
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207 (goto-char end)
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208 (insert string)
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209 (goto-char end)
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210 (or (looking-at "^")
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211 (forward-line 1))
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212 (while (looking-at "^")
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213 (insert " ")
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214 (forward-line 1))
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215 ;; Convert ` ./FILE' to ` FILE'
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216 ;; This would lose if the current chunk of output
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217 ;; starts or ends within the ` ./', so back up a bit:
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218 (goto-char (- end 3)) ; no error if < 0
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219 (while (search-forward " ./" nil t)
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220 (delete-region (point) (- (point) 2)))
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221 ;; Find all the complete lines in the unprocessed
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222 ;; output and process it to add text properties.
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223 (goto-char end)
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224 (if (search-backward "\n" (process-mark proc) t)
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225 (progn
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226 (dired-insert-set-properties (process-mark proc)
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227 (1+ (point)))
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228 (move-marker (process-mark proc) (1+ (point)))))
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229 ))))
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230 ;; The buffer has been killed.
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231 (delete-process proc))))
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232
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233 (defun find-dired-sentinel (proc state)
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234 ;; Sentinel for \\[find-dired] processes.
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235 (let ((buf (process-buffer proc)))
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236 (if (buffer-name buf)
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237 (save-excursion
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238 (set-buffer buf)
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239 (let ((buffer-read-only nil))
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240 (save-excursion
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241 (goto-char (point-max))
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242 (insert "\nfind " state)
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243 (forward-char -1) ;Back up before \n at end of STATE.
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244 (insert " at " (substring (current-time-string) 0 19))
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245 (forward-char 1)
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246 (setq modeline-process ;; XEmacs: newer spelling
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247 (concat ":"
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248 (symbol-name (process-status proc))))
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249 ;; Since the buffer and mode line will show that the
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250 ;; process is dead, we can delete it now. Otherwise it
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251 ;; will stay around until M-x list-processes.
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252 (delete-process proc)
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253 (redraw-modeline))) ;; XEmacs function
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254 (message "find-dired %s finished." (current-buffer))))))
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255
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256 (provide 'find-dired)
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257
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258 ;;; find-dired.el ends here
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