Fix a bug introduced by recent changes
[emacs.git] / lisp / find-dired.el
blob9458fdfec434b8ea63db846643c8ecf2435010d9
1 ;;; find-dired.el --- run a `find' command and dired the output
3 ;; Copyright (C) 1992, 1994, 1995, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Roland McGrath <roland@gnu.org>,
7 ;; Sebastian Kremer <sk@thp.uni-koeln.de>
8 ;; Maintainer: FSF
9 ;; Keywords: unix
11 ;; This file is part of GNU Emacs.
13 ;; GNU Emacs is free software: you can redistribute it and/or modify
14 ;; it under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation, either version 3 of the License, or
16 ;; (at your option) any later version.
18 ;; GNU Emacs is distributed in the hope that it will be useful,
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ;; GNU General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
26 ;;; Commentary:
28 ;;; Code:
30 (require 'dired)
32 (defgroup find-dired nil
33 "Run a `find' command and dired the output."
34 :group 'dired
35 :prefix "find-")
37 ;; find's -ls corresponds to these switches.
38 ;; Note -b, at least GNU find quotes spaces etc. in filenames
39 ;;;###autoload
40 (defcustom find-ls-option
41 (if (eq system-type 'berkeley-unix) (purecopy '("-ls" . "-gilsb"))
42 (purecopy '("-exec ls -ld {} \\;" . "-ld")))
43 "Description of the option to `find' to produce an `ls -l'-type listing.
44 This is a cons of two strings (FIND-OPTION . LS-SWITCHES). FIND-OPTION
45 gives the option (or options) to `find' that produce the desired output.
46 LS-SWITCHES is a list of `ls' switches to tell dired how to parse the output."
47 :type '(cons (string :tag "Find Option")
48 (string :tag "Ls Switches"))
49 :group 'find-dired)
51 ;;;###autoload
52 (defcustom find-ls-subdir-switches (purecopy "-al")
53 "`ls' switches for inserting subdirectories in `*Find*' buffers.
54 This should contain the \"-l\" switch.
55 Use the \"-F\" or \"-b\" switches if and only if you also use
56 them for `find-ls-option'."
57 :type 'string
58 :group 'find-dired
59 :version "22.1")
61 ;;;###autoload
62 (defcustom find-grep-options
63 (purecopy (if (or (eq system-type 'berkeley-unix)
64 (string-match "solaris2" system-configuration)
65 (string-match "irix" system-configuration))
66 "-s" "-q"))
67 "Option to grep to be as silent as possible.
68 On Berkeley systems, this is `-s'; on Posix, and with GNU grep, `-q' does it.
69 On other systems, the closest you can come is to use `-l'."
70 :type 'string
71 :group 'find-dired)
73 ;; This used to be autoloaded (see bug#4387).
74 (defcustom find-name-arg
75 (purecopy (if read-file-name-completion-ignore-case
76 "-iname"
77 "-name"))
78 "Argument used to specify file name pattern.
79 If `read-file-name-completion-ignore-case' is non-nil, -iname is used so that
80 find also ignores case. Otherwise, -name is used."
81 :type 'string
82 :group 'find-dired
83 :version "22.2")
85 (defvar find-args nil
86 "Last arguments given to `find' by \\[find-dired].")
88 ;; History of find-args values entered in the minibuffer.
89 (defvar find-args-history nil)
91 (defvar dired-sort-inhibit)
93 ;;;###autoload
94 (defun find-dired (dir args)
95 "Run `find' and go into Dired mode on a buffer of the output.
96 The command run (after changing into DIR) is
98 find . \\( ARGS \\) -ls
100 except that the variable `find-ls-option' specifies what to use
101 as the final argument."
102 (interactive (list (read-file-name "Run find in directory: " nil "" t)
103 (read-string "Run find (with args): " find-args
104 '(find-args-history . 1))))
105 (let ((dired-buffers dired-buffers))
106 ;; Expand DIR ("" means default-directory), and make sure it has a
107 ;; trailing slash.
108 (setq dir (file-name-as-directory (expand-file-name dir)))
109 ;; Check that it's really a directory.
110 (or (file-directory-p dir)
111 (error "find-dired needs a directory: %s" dir))
112 (switch-to-buffer (get-buffer-create "*Find*"))
114 ;; See if there's still a `find' running, and offer to kill
115 ;; it first, if it is.
116 (let ((find (get-buffer-process (current-buffer))))
117 (when find
118 (if (or (not (eq (process-status find) 'run))
119 (yes-or-no-p "A `find' process is running; kill it? "))
120 (condition-case nil
121 (progn
122 (interrupt-process find)
123 (sit-for 1)
124 (delete-process find))
125 (error nil))
126 (error "Cannot have two processes in `%s' at once" (buffer-name)))))
128 (widen)
129 (kill-all-local-variables)
130 (setq buffer-read-only nil)
131 (erase-buffer)
132 (setq default-directory dir
133 find-args args ; save for next interactive call
134 args (concat find-program " . "
135 (if (string= args "")
137 (concat
138 (shell-quote-argument "(")
139 " " args " "
140 (shell-quote-argument ")")
141 " "))
142 (if (equal (car find-ls-option) "-exec ls -ld {} \\;")
143 (concat "-exec ls -ld "
144 (shell-quote-argument "{}")
146 (shell-quote-argument ";"))
147 (car find-ls-option))))
148 ;; Start the find process.
149 (shell-command (concat args "&") (current-buffer))
150 ;; The next statement will bomb in classic dired (no optional arg allowed)
151 (dired-mode dir (cdr find-ls-option))
152 (let ((map (make-sparse-keymap)))
153 (set-keymap-parent map (current-local-map))
154 (define-key map "\C-c\C-k" 'kill-find)
155 (use-local-map map))
156 (make-local-variable 'dired-sort-inhibit)
157 (setq dired-sort-inhibit t)
158 (set (make-local-variable 'revert-buffer-function)
159 `(lambda (ignore-auto noconfirm)
160 (find-dired ,dir ,find-args)))
161 ;; Set subdir-alist so that Tree Dired will work:
162 (if (fboundp 'dired-simple-subdir-alist)
163 ;; will work even with nested dired format (dired-nstd.el,v 1.15
164 ;; and later)
165 (dired-simple-subdir-alist)
166 ;; else we have an ancient tree dired (or classic dired, where
167 ;; this does no harm)
168 (set (make-local-variable 'dired-subdir-alist)
169 (list (cons default-directory (point-min-marker)))))
170 (set (make-local-variable 'dired-subdir-switches) find-ls-subdir-switches)
171 (setq buffer-read-only nil)
172 ;; Subdir headlerline must come first because the first marker in
173 ;; subdir-alist points there.
174 (insert " " dir ":\n")
175 ;; Make second line a ``find'' line in analogy to the ``total'' or
176 ;; ``wildcard'' line.
177 (insert " " args "\n")
178 (setq buffer-read-only t)
179 (let ((proc (get-buffer-process (current-buffer))))
180 (set-process-filter proc (function find-dired-filter))
181 (set-process-sentinel proc (function find-dired-sentinel))
182 ;; Initialize the process marker; it is used by the filter.
183 (move-marker (process-mark proc) 1 (current-buffer)))
184 (setq mode-line-process '(":%s"))))
186 (defun kill-find ()
187 "Kill the `find' process running in the current buffer."
188 (interactive)
189 (let ((find (get-buffer-process (current-buffer))))
190 (and find (eq (process-status find) 'run)
191 (eq (process-filter find) (function find-dired-filter))
192 (condition-case nil
193 (delete-process find)
194 (error nil)))))
196 ;;;###autoload
197 (defun find-name-dired (dir pattern)
198 "Search DIR recursively for files matching the globbing pattern PATTERN,
199 and run dired on those files.
200 PATTERN is a shell wildcard (not an Emacs regexp) and need not be quoted.
201 The command run (after changing into DIR) is
203 find . -name 'PATTERN' -ls"
204 (interactive
205 "DFind-name (directory): \nsFind-name (filename wildcard): ")
206 (find-dired dir (concat find-name-arg " " (shell-quote-argument pattern))))
208 ;; This functionality suggested by
209 ;; From: oblanc@watcgl.waterloo.edu (Olivier Blanc)
210 ;; Subject: find-dired, lookfor-dired
211 ;; Date: 10 May 91 17:50:00 GMT
212 ;; Organization: University of Waterloo
214 (defalias 'lookfor-dired 'find-grep-dired)
215 ;;;###autoload
216 (defun find-grep-dired (dir regexp)
217 "Find files in DIR containing a regexp REGEXP and start Dired on output.
218 The command run (after changing into DIR) is
220 find . -exec grep -s -e REGEXP {} \\\; -ls
222 Thus ARG can also contain additional grep options."
223 (interactive "DFind-grep (directory): \nsFind-grep (grep regexp): ")
224 ;; find -exec doesn't allow shell i/o redirections in the command,
225 ;; or we could use `grep -l >/dev/null'
226 ;; We use -type f, not ! -type d, to avoid getting screwed
227 ;; by FIFOs and devices. I'm not sure what's best to do
228 ;; about symlinks, so as far as I know this is not wrong.
229 (find-dired dir
230 (concat "-type f -exec " grep-program " " find-grep-options " -e "
231 (shell-quote-argument regexp)
233 (shell-quote-argument "{}")
235 (shell-quote-argument ";"))))
237 (defun find-dired-filter (proc string)
238 ;; Filter for \\[find-dired] processes.
239 (let ((buf (process-buffer proc))
240 (inhibit-read-only t))
241 (if (buffer-name buf)
242 (with-current-buffer buf
243 (save-excursion
244 (save-restriction
245 (widen)
246 (let ((buffer-read-only nil)
247 (beg (point-max))
248 (l-opt (and (consp find-ls-option)
249 (string-match "l" (cdr find-ls-option))))
250 (ls-regexp (concat "^ +[^ \t\r\n]+\\( +[^ \t\r\n]+\\) +"
251 "[^ \t\r\n]+ +[^ \t\r\n]+\\( +[0-9]+\\)")))
252 (goto-char beg)
253 (insert string)
254 (goto-char beg)
255 (or (looking-at "^")
256 (forward-line 1))
257 (while (looking-at "^")
258 (insert " ")
259 (forward-line 1))
260 ;; Convert ` ./FILE' to ` FILE'
261 ;; This would lose if the current chunk of output
262 ;; starts or ends within the ` ./', so back up a bit:
263 (goto-char (- beg 3)) ; no error if < 0
264 (while (search-forward " ./" nil t)
265 (delete-region (point) (- (point) 2)))
266 ;; Pad the number of links and file size. This is a
267 ;; quick and dirty way of getting the columns to line up
268 ;; most of the time, but it's not foolproof.
269 (when l-opt
270 (goto-char beg)
271 (goto-char (line-beginning-position))
272 (while (re-search-forward ls-regexp nil t)
273 (replace-match (format "%4s" (match-string 1))
274 nil nil nil 1)
275 (replace-match (format "%9s" (match-string 2))
276 nil nil nil 2)
277 (forward-line 1)))
278 ;; Find all the complete lines in the unprocessed
279 ;; output and process it to add text properties.
280 (goto-char (point-max))
281 (if (search-backward "\n" (process-mark proc) t)
282 (progn
283 (dired-insert-set-properties (process-mark proc)
284 (1+ (point)))
285 (move-marker (process-mark proc) (1+ (point)))))))))
286 ;; The buffer has been killed.
287 (delete-process proc))))
289 (defun find-dired-sentinel (proc state)
290 ;; Sentinel for \\[find-dired] processes.
291 (let ((buf (process-buffer proc))
292 (inhibit-read-only t))
293 (if (buffer-name buf)
294 (with-current-buffer buf
295 (let ((buffer-read-only nil))
296 (save-excursion
297 (goto-char (point-max))
298 (insert "\n find " state)
299 (forward-char -1) ;Back up before \n at end of STATE.
300 (insert " at " (substring (current-time-string) 0 19))
301 (forward-char 1)
302 (setq mode-line-process
303 (concat ":"
304 (symbol-name (process-status proc))))
305 ;; Since the buffer and mode line will show that the
306 ;; process is dead, we can delete it now. Otherwise it
307 ;; will stay around until M-x list-processes.
308 (delete-process proc)
309 (force-mode-line-update)))
310 (message "find-dired %s finished." (current-buffer))))))
313 (provide 'find-dired)
315 ;; arch-tag: 8edece95-af00-4221-bc74-a4bd2f75f9b0
316 ;;; find-dired.el ends here