2008-11-16 Michael Kifer <kifer@cs.stonybrook.edu>
[emacs.git] / lisp / dired-aux.el
blob930c4e32340c53675d4f4bc64139e30208d6879b
1 ;;; dired-aux.el --- less commonly used parts of dired -*-byte-compile-dynamic: t;-*-
3 ;; Copyright (C) 1985, 1986, 1992, 1994, 1998, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
7 ;; Maintainer: FSF
8 ;; Keywords: files
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 ;;; Commentary:
27 ;; The parts of dired mode not normally used. This is a space-saving hack
28 ;; to avoid having to load a large mode when all that's wanted are a few
29 ;; functions.
31 ;; Rewritten in 1990/1991 to add tree features, file marking and
32 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
33 ;; Finished up by rms in 1992.
35 ;;; Code:
37 ;; We need macros in dired.el to compile properly,
38 ;; and we call subroutines in it too.
39 (require 'dired)
41 (defvar dired-create-files-failures nil
42 "Variable where `dired-create-files' records failing file names.
43 Functions that operate recursively can store additional names
44 into this list; they also should call `dired-log' to log the errors.")
46 ;;; 15K
47 ;;;###begin dired-cmd.el
48 ;; Diffing and compressing
50 (defconst dired-star-subst-regexp "\\(^\\|[ \t]\\)\\*\\([ \t]\\|$\\)")
51 (defconst dired-quark-subst-regexp "\\(^\\|[ \t]\\)\\?\\([ \t]\\|$\\)")
53 ;;;###autoload
54 (defun dired-diff (file &optional switches)
55 "Compare file at point with file FILE using `diff'.
56 FILE defaults to the file at the mark. (That's the mark set by
57 \\[set-mark-command], not by Dired's \\[dired-mark] command.)
58 The prompted-for file is the first file given to `diff'.
59 With prefix arg, prompt for second argument SWITCHES,
60 which is options for `diff'."
61 (interactive
62 (let ((current (dired-get-filename t))
63 (default (if (mark t)
64 (save-excursion (goto-char (mark t))
65 (dired-get-filename t t)))))
66 (if (or (equal default current)
67 (and (not (equal (dired-dwim-target-directory)
68 (dired-current-directory)))
69 (not mark-active)))
70 (setq default nil))
71 (require 'diff)
72 (list (read-file-name (format "Diff %s with%s: "
73 current
74 (if default
75 (concat " (default " default ")")
76 ""))
77 (if default
78 (dired-current-directory)
79 (dired-dwim-target-directory))
80 default t)
81 (if current-prefix-arg
82 (read-string "Options for diff: "
83 (if (stringp diff-switches)
84 diff-switches
85 (mapconcat 'identity diff-switches " ")))))))
86 (diff file (dired-get-filename t) switches))
88 ;;;###autoload
89 (defun dired-backup-diff (&optional switches)
90 "Diff this file with its backup file or vice versa.
91 Uses the latest backup, if there are several numerical backups.
92 If this file is a backup, diff it with its original.
93 The backup file is the first file given to `diff'.
94 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
95 (interactive
96 (if current-prefix-arg
97 (list (read-string "Options for diff: "
98 (if (stringp diff-switches)
99 diff-switches
100 (mapconcat 'identity diff-switches " "))))
101 nil))
102 (diff-backup (dired-get-filename) switches))
104 ;;;###autoload
105 (defun dired-compare-directories (dir2 predicate)
106 "Mark files with different file attributes in two dired buffers.
107 Compare file attributes of files in the current directory
108 with file attributes in directory DIR2 using PREDICATE on pairs of files
109 with the same name. Mark files for which PREDICATE returns non-nil.
110 Mark files with different names if PREDICATE is nil (or interactively
111 with empty input at the predicate prompt).
113 PREDICATE is a Lisp expression that can refer to the following variables:
115 size1, size2 - file size in bytes
116 mtime1, mtime2 - last modification time in seconds, as a float
117 fa1, fa2 - list of file attributes
118 returned by function `file-attributes'
120 where 1 refers to attribute of file in the current dired buffer
121 and 2 to attribute of file in second dired buffer.
123 Examples of PREDICATE:
125 (> mtime1 mtime2) - mark newer files
126 (not (= size1 size2)) - mark files with different sizes
127 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
128 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
129 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
130 (interactive
131 (list (read-directory-name (format "Compare %s with: "
132 (dired-current-directory))
133 (dired-dwim-target-directory)
134 (dired-dwim-target-directory))
135 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil "nil")))
136 (let* ((dir1 (dired-current-directory))
137 (file-alist1 (dired-files-attributes dir1))
138 (file-alist2 (dired-files-attributes dir2))
139 file-list1 file-list2)
140 (setq file-alist1 (delq (assoc "." file-alist1) file-alist1))
141 (setq file-alist1 (delq (assoc ".." file-alist1) file-alist1))
142 (setq file-alist2 (delq (assoc "." file-alist2) file-alist2))
143 (setq file-alist2 (delq (assoc ".." file-alist2) file-alist2))
144 (setq file-list1 (mapcar
145 'cadr
146 (dired-file-set-difference
147 file-alist1 file-alist2
148 predicate))
149 file-list2 (mapcar
150 'cadr
151 (dired-file-set-difference
152 file-alist2 file-alist1
153 predicate)))
154 (dired-fun-in-all-buffers
155 dir1 nil
156 (lambda ()
157 (dired-mark-if
158 (member (dired-get-filename nil t) file-list1) nil)))
159 (dired-fun-in-all-buffers
160 dir2 nil
161 (lambda ()
162 (dired-mark-if
163 (member (dired-get-filename nil t) file-list2) nil)))
164 (message "Marked in dir1: %s files, in dir2: %s files"
165 (length file-list1)
166 (length file-list2))))
168 (defun dired-file-set-difference (list1 list2 predicate)
169 "Combine LIST1 and LIST2 using a set-difference operation.
170 The result list contains all file items that appear in LIST1 but not LIST2.
171 This is a non-destructive function; it makes a copy of the data if necessary
172 to avoid corrupting the original LIST1 and LIST2.
173 PREDICATE (see `dired-compare-directories') is an additional match
174 condition. Two file items are considered to match if they are equal
175 *and* PREDICATE evaluates to t."
176 (if (or (null list1) (null list2))
177 list1
178 (let (res)
179 (dolist (file1 list1)
180 (unless (let ((list list2))
181 (while (and list
182 (not (let* ((file2 (car list))
183 (fa1 (car (cddr file1)))
184 (fa2 (car (cddr file2)))
185 (size1 (nth 7 fa1))
186 (size2 (nth 7 fa2))
187 (mtime1 (float-time (nth 5 fa1)))
188 (mtime2 (float-time (nth 5 fa2))))
189 (and
190 (equal (car file1) (car file2))
191 (not (eval predicate))))))
192 (setq list (cdr list)))
193 list)
194 (setq res (cons file1 res))))
195 (nreverse res))))
197 (defun dired-files-attributes (dir)
198 "Return a list of all file names and attributes from DIR.
199 List has a form of (file-name full-file-name (attribute-list))"
200 (mapcar
201 (lambda (file-name)
202 (let ((full-file-name (expand-file-name file-name dir)))
203 (list file-name
204 full-file-name
205 (file-attributes full-file-name))))
206 (directory-files dir)))
209 (defun dired-touch-initial (files)
210 "Create initial input value for `touch' command."
211 (let (initial)
212 (while files
213 (let ((current (nth 5 (file-attributes (car files)))))
214 (if (and initial (not (equal initial current)))
215 (setq initial (current-time) files nil)
216 (setq initial current))
217 (setq files (cdr files))))
218 (format-time-string "%Y%m%d%H%M.%S" initial)))
220 (defun dired-do-chxxx (attribute-name program op-symbol arg)
221 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
222 ;; refresh their file lines.
223 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
224 ;; PROGRAM is the program used to change the attribute.
225 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
226 ;; ARG describes which files to use, as in dired-get-marked-files.
227 (let* ((files (dired-get-marked-files t arg))
228 (new-attribute
229 (dired-mark-read-string
230 (concat "Change " attribute-name " of %s to: ")
231 (if (eq op-symbol 'touch) (dired-touch-initial files))
232 op-symbol arg files))
233 (operation (concat program " " new-attribute))
234 failures)
235 (setq failures
236 (dired-bunch-files 10000
237 (function dired-check-process)
238 (append
239 (list operation program)
240 (if (eq op-symbol 'touch)
241 '("-t") nil)
242 (list new-attribute)
243 (if (string-match "gnu" system-configuration)
244 '("--") nil))
245 files))
246 (dired-do-redisplay arg);; moves point if ARG is an integer
247 (if failures
248 (dired-log-summary
249 (format "%s: error" operation)
250 nil))))
252 ;;;###autoload
253 (defun dired-do-chmod (&optional arg)
254 "Change the mode of the marked (or next ARG) files.
255 Symbolic modes like `g+w' are allowed."
256 (interactive "P")
257 (let* ((files (dired-get-marked-files t arg))
258 (modestr (and (stringp (car files))
259 (nth 8 (file-attributes (car files)))))
260 (default
261 (and (stringp modestr)
262 (string-match "^.\\(...\\)\\(...\\)\\(...\\)$" modestr)
263 (replace-regexp-in-string
264 "-" ""
265 (format "u=%s,g=%s,o=%s"
266 (match-string 1 modestr)
267 (match-string 2 modestr)
268 (match-string 3 modestr)))))
269 (modes (dired-mark-read-string
270 "Change mode of %s to: " nil
271 'chmod arg files default))
272 (num-modes (if (string-match "^[0-7]+" modes)
273 (string-to-number modes 8))))
274 (dolist (file files)
275 (set-file-modes
276 file
277 (if num-modes num-modes
278 (file-modes-symbolic-to-number modes (file-modes file)))))
279 (dired-do-redisplay arg)))
281 ;;;###autoload
282 (defun dired-do-chgrp (&optional arg)
283 "Change the group of the marked (or next ARG) files."
284 (interactive "P")
285 (if (memq system-type '(ms-dos windows-nt))
286 (error "chgrp not supported on this system"))
287 (dired-do-chxxx "Group" "chgrp" 'chgrp arg))
289 ;;;###autoload
290 (defun dired-do-chown (&optional arg)
291 "Change the owner of the marked (or next ARG) files."
292 (interactive "P")
293 (if (memq system-type '(ms-dos windows-nt))
294 (error "chown not supported on this system"))
295 (dired-do-chxxx "Owner" dired-chown-program 'chown arg))
297 ;;;###autoload
298 (defun dired-do-touch (&optional arg)
299 "Change the timestamp of the marked (or next ARG) files.
300 This calls touch."
301 (interactive "P")
302 (dired-do-chxxx "Timestamp" dired-touch-program 'touch arg))
304 ;; Process all the files in FILES in batches of a convenient size,
305 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
306 ;; Batches are chosen to need less than MAX chars for the file names,
307 ;; allowing 3 extra characters of separator per file name.
308 (defun dired-bunch-files (max function args files)
309 (let (pending
310 past
311 (pending-length 0)
312 failures)
313 ;; Accumulate files as long as they fit in MAX chars,
314 ;; then process the ones accumulated so far.
315 (while files
316 (let* ((thisfile (car files))
317 (thislength (+ (length thisfile) 3))
318 (rest (cdr files)))
319 ;; If we have at least 1 pending file
320 ;; and this file won't fit in the length limit, process now.
321 (if (and pending (> (+ thislength pending-length) max))
322 (setq pending (nreverse pending)
323 ;; The elements of PENDING are now in forward order.
324 ;; Do the operation and record failures.
325 failures (nconc (apply function (append args pending))
326 failures)
327 ;; Transfer the elemens of PENDING onto PAST
328 ;; and clear it out. Now PAST contains the first N files
329 ;; specified (for some N), and FILES contains the rest.
330 past (nconc past pending)
331 pending nil
332 pending-length 0))
333 ;; Do (setq pending (cons thisfile pending))
334 ;; but reuse the cons that was in `files'.
335 (setcdr files pending)
336 (setq pending files)
337 (setq pending-length (+ thislength pending-length))
338 (setq files rest)))
339 (setq pending (nreverse pending))
340 (prog1
341 (nconc (apply function (append args pending))
342 failures)
343 ;; Now the original list FILES has been put back as it was.
344 (nconc past pending))))
346 ;;;###autoload
347 (defun dired-do-print (&optional arg)
348 "Print the marked (or next ARG) files.
349 Uses the shell command coming from variables `lpr-command' and
350 `lpr-switches' as default."
351 (interactive "P")
352 (let* ((file-list (dired-get-marked-files t arg))
353 (command (dired-mark-read-string
354 "Print %s with: "
355 (mapconcat 'identity
356 (cons lpr-command
357 (if (stringp lpr-switches)
358 (list lpr-switches)
359 lpr-switches))
360 " ")
361 'print arg file-list)))
362 (dired-run-shell-command (dired-shell-stuff-it command file-list nil))))
364 ;; Read arguments for a marked-files command that wants a string
365 ;; that is not a file name,
366 ;; perhaps popping up the list of marked files.
367 ;; ARG is the prefix arg and indicates whether the files came from
368 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
369 ;; If the current file was used, the list has but one element and ARG
370 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
372 (defun dired-mark-read-string (prompt initial op-symbol arg files &optional default)
373 ;; PROMPT for a string, with INITIAL input and DEFAULT value.
374 ;; Other args are used to give user feedback and pop-up:
375 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
376 (dired-mark-pop-up
377 nil op-symbol files
378 (function read-string)
379 (format prompt (dired-mark-prompt arg files)) initial nil default))
381 ;;; Cleaning a directory: flagging some backups for deletion.
383 (defvar dired-file-version-alist)
385 ;;;###autoload
386 (defun dired-clean-directory (keep)
387 "Flag numerical backups for deletion.
388 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
389 Positive prefix arg KEEP overrides `dired-kept-versions';
390 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
392 To clear the flags on these files, you can use \\[dired-flag-backup-files]
393 with a prefix argument."
394 (interactive "P")
395 (setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
396 (let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
397 (late-retention (if (<= keep 0) dired-kept-versions keep))
398 (dired-file-version-alist ()))
399 (message "Cleaning numerical backups (keeping %d late, %d old)..."
400 late-retention early-retention)
401 ;; Look at each file.
402 ;; If the file has numeric backup versions,
403 ;; put on dired-file-version-alist an element of the form
404 ;; (FILENAME . VERSION-NUMBER-LIST)
405 (dired-map-dired-file-lines (function dired-collect-file-versions))
406 ;; Sort each VERSION-NUMBER-LIST,
407 ;; and remove the versions not to be deleted.
408 (let ((fval dired-file-version-alist))
409 (while fval
410 (let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
411 (v-count (length sorted-v-list)))
412 (if (> v-count (+ early-retention late-retention))
413 (rplacd (nthcdr early-retention sorted-v-list)
414 (nthcdr (- v-count late-retention)
415 sorted-v-list)))
416 (rplacd (car fval)
417 (cdr sorted-v-list)))
418 (setq fval (cdr fval))))
419 ;; Look at each file. If it is a numeric backup file,
420 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
421 (dired-map-dired-file-lines (function dired-trample-file-versions))
422 (message "Cleaning numerical backups...done")))
424 ;;; Subroutines of dired-clean-directory.
426 (defun dired-map-dired-file-lines (fun)
427 ;; Perform FUN with point at the end of each non-directory line.
428 ;; FUN takes one argument, the absolute filename.
429 (save-excursion
430 (let (file buffer-read-only)
431 (goto-char (point-min))
432 (while (not (eobp))
433 (save-excursion
434 (and (not (looking-at dired-re-dir))
435 (not (eolp))
436 (setq file (dired-get-filename nil t)) ; nil on non-file
437 (progn (end-of-line)
438 (funcall fun file))))
439 (forward-line 1)))))
441 (defun dired-collect-file-versions (fn)
442 (let ((fn (file-name-sans-versions fn)))
443 ;; Only do work if this file is not already in the alist.
444 (if (assoc fn dired-file-version-alist)
446 ;; If it looks like file FN has versions, return a list of the versions.
447 ;;That is a list of strings which are file names.
448 ;;The caller may want to flag some of these files for deletion.
449 (let* ((base-versions
450 (concat (file-name-nondirectory fn) ".~"))
451 (backup-extract-version-start (length base-versions))
452 (possibilities (file-name-all-completions
453 base-versions
454 (file-name-directory fn)))
455 (versions (mapcar 'backup-extract-version possibilities)))
456 (if versions
457 (setq dired-file-version-alist
458 (cons (cons fn versions)
459 dired-file-version-alist)))))))
461 (defun dired-trample-file-versions (fn)
462 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
463 base-version-list)
464 (and start-vn
465 (setq base-version-list ; there was a base version to which
466 (assoc (substring fn 0 start-vn) ; this looks like a
467 dired-file-version-alist)) ; subversion
468 (not (memq (string-to-number (substring fn (+ 2 start-vn)))
469 base-version-list)) ; this one doesn't make the cut
470 (progn (beginning-of-line)
471 (delete-char 1)
472 (insert dired-del-marker)))))
474 ;;; Shell commands
476 (declare-function mailcap-file-default-commands "mailcap" (files))
478 (defun minibuffer-default-add-dired-shell-commands ()
479 "Return a list of all commands associted with current dired files.
480 This function is used to add all related commands retieved by `mailcap'
481 to the end of the list of defaults just after the default value."
482 (interactive)
483 (let ((commands (and (boundp 'files) (require 'mailcap nil t)
484 (mailcap-file-default-commands files))))
485 (if (listp minibuffer-default)
486 (append minibuffer-default commands)
487 (cons minibuffer-default commands))))
489 ;; This is an extra function so that you can redefine it, e.g., to use gmhist.
490 (defun dired-read-shell-command (prompt arg files)
491 "Read a dired shell command prompting with PROMPT (using read-shell-command).
492 ARG is the prefix arg and may be used to indicate in the prompt which
493 FILES are affected."
494 (minibuffer-with-setup-hook
495 (lambda ()
496 (set (make-local-variable 'minibuffer-default-add-function)
497 'minibuffer-default-add-dired-shell-commands))
498 (dired-mark-pop-up
499 nil 'shell files
500 #'read-shell-command
501 (format prompt (dired-mark-prompt arg files))
502 nil nil)))
504 ;;;###autoload
505 (defun dired-do-async-shell-command (command &optional arg file-list)
506 "Run a shell command COMMAND on the marked files asynchronously.
508 Like `dired-do-shell-command' but if COMMAND doesn't end in ampersand,
509 adds `* &' surrounded by whitespace and executes the command asynchronously.
510 The output appears in the buffer `*Async Shell Command*'."
511 (interactive
512 (let ((files (dired-get-marked-files t current-prefix-arg)))
513 (list
514 ;; Want to give feedback whether this file or marked files are used:
515 (dired-read-shell-command "& on %s: " current-prefix-arg files)
516 current-prefix-arg
517 files)))
518 (unless (string-match "[*?][ \t]*\\'" command)
519 (setq command (concat command " *")))
520 (unless (string-match "&[ \t]*\\'" command)
521 (setq command (concat command " &")))
522 (dired-do-shell-command command arg file-list))
524 ;; The in-background argument is only needed in Emacs 18 where
525 ;; shell-command doesn't understand an appended ampersand `&'.
526 ;;;###autoload
527 (defun dired-do-shell-command (command &optional arg file-list)
528 "Run a shell command COMMAND on the marked files.
529 If no files are marked or a specific numeric prefix arg is given,
530 the next ARG files are used. Just \\[universal-argument] means the current file.
531 The prompt mentions the file(s) or the marker, as appropriate.
533 If there is a `*' in COMMAND, surrounded by whitespace, this runs
534 COMMAND just once with the entire file list substituted there.
536 If there is no `*', but there is a `?' in COMMAND, surrounded by
537 whitespace, this runs COMMAND on each file individually with the
538 file name substituted for `?'.
540 Otherwise, this runs COMMAND on each file individually with the
541 file name added at the end of COMMAND (separated by a space).
543 `*' and `?' when not surrounded by whitespace have no special
544 significance for `dired-do-shell-command', and are passed through
545 normally to the shell, but you must confirm first. To pass `*' by
546 itself to the shell as a wildcard, type `*\"\"'.
548 If COMMAND produces output, it goes to a separate buffer.
550 This feature does not try to redisplay Dired buffers afterward, as
551 there's no telling what files COMMAND may have changed.
552 Type \\[dired-do-redisplay] to redisplay the marked files.
554 When COMMAND runs, its working directory is the top-level directory of
555 the Dired buffer, so output files usually are created there instead of
556 in a subdir.
558 In a noninteractive call (from Lisp code), you must specify
559 the list of file names explicitly with the FILE-LIST argument, which
560 can be produced by `dired-get-marked-files', for example."
561 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
562 ;;actual work and can be redefined for customization.
563 (interactive
564 (let ((files (dired-get-marked-files t current-prefix-arg)))
565 (list
566 ;; Want to give feedback whether this file or marked files are used:
567 (dired-read-shell-command (concat "! on "
568 "%s: ")
569 current-prefix-arg
570 files)
571 current-prefix-arg
572 files)))
573 (let* ((on-each (not (string-match dired-star-subst-regexp command)))
574 (subst (not (string-match dired-quark-subst-regexp command)))
575 (star (not (string-match "\\*" command)))
576 (qmark (not (string-match "\\?" command))))
577 ;; Get confirmation for wildcards that may have been meant
578 ;; to control substitution of a file name or the file name list.
579 (if (cond ((not (or on-each subst))
580 (error "You can not combine `*' and `?' substitution marks"))
581 ((and star (not on-each))
582 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
583 ((and qmark (not subst))
584 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
585 (t))
586 (if on-each
587 (dired-bunch-files
588 (- 10000 (length command))
589 (function (lambda (&rest files)
590 (dired-run-shell-command
591 (dired-shell-stuff-it command files t arg))))
593 file-list)
594 ;; execute the shell command
595 (dired-run-shell-command
596 (dired-shell-stuff-it command file-list nil arg))))))
598 ;; Might use {,} for bash or csh:
599 (defvar dired-mark-prefix ""
600 "Prepended to marked files in dired shell commands.")
601 (defvar dired-mark-postfix ""
602 "Appended to marked files in dired shell commands.")
603 (defvar dired-mark-separator " "
604 "Separates marked files in dired shell commands.")
606 (defun dired-shell-stuff-it (command file-list on-each &optional raw-arg)
607 ;; "Make up a shell command line from COMMAND and FILE-LIST.
608 ;; If ON-EACH is t, COMMAND should be applied to each file, else
609 ;; simply concat all files and apply COMMAND to this.
610 ;; FILE-LIST's elements will be quoted for the shell."
611 ;; Might be redefined for smarter things and could then use RAW-ARG
612 ;; (coming from interactive P and currently ignored) to decide what to do.
613 ;; Smart would be a way to access basename or extension of file names.
614 (let ((stuff-it
615 (if (or (string-match dired-star-subst-regexp command)
616 (string-match dired-quark-subst-regexp command))
617 (lambda (x)
618 (let ((retval command))
619 (while (string-match
620 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
621 (setq retval (replace-match x t t retval 2)))
622 retval))
623 (lambda (x) (concat command dired-mark-separator x)))))
624 (if on-each
625 (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
626 (let ((files (mapconcat 'shell-quote-argument
627 file-list dired-mark-separator)))
628 (if (> (length file-list) 1)
629 (setq files (concat dired-mark-prefix files dired-mark-postfix)))
630 (funcall stuff-it files)))))
632 ;; This is an extra function so that it can be redefined by ange-ftp.
633 ;;;###autoload
634 (defun dired-run-shell-command (command)
635 (let ((handler
636 (find-file-name-handler (directory-file-name default-directory)
637 'shell-command)))
638 (if handler (apply handler 'shell-command (list command))
639 (shell-command command)))
640 ;; Return nil for sake of nconc in dired-bunch-files.
641 nil)
644 (defun dired-check-process (msg program &rest arguments)
645 ; "Display MSG while running PROGRAM, and check for output.
646 ;Remaining arguments are strings passed as command arguments to PROGRAM.
647 ; On error, insert output
648 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
649 ; Caller can cons up a list of failed args.
650 ;Else returns nil for success."
651 (let (err-buffer err (dir default-directory))
652 (message "%s..." msg)
653 (save-excursion
654 ;; Get a clean buffer for error output:
655 (setq err-buffer (get-buffer-create " *dired-check-process output*"))
656 (set-buffer err-buffer)
657 (erase-buffer)
658 (setq default-directory dir ; caller's default-directory
659 err (not (eq 0 (apply 'process-file program nil t nil arguments))))
660 (if err
661 (progn
662 (dired-log (concat program " " (prin1-to-string arguments) "\n"))
663 (dired-log err-buffer)
664 (or arguments program t))
665 (kill-buffer err-buffer)
666 (message "%s...done" msg)
667 nil))))
669 ;; Commands that delete or redisplay part of the dired buffer.
671 (defun dired-kill-line (&optional arg)
672 (interactive "P")
673 (setq arg (prefix-numeric-value arg))
674 (let (buffer-read-only file)
675 (while (/= 0 arg)
676 (setq file (dired-get-filename nil t))
677 (if (not file)
678 (error "Can only kill file lines")
679 (save-excursion (and file
680 (dired-goto-subdir file)
681 (dired-kill-subdir)))
682 (delete-region (progn (beginning-of-line) (point))
683 (progn (forward-line 1) (point)))
684 (if (> arg 0)
685 (setq arg (1- arg))
686 (setq arg (1+ arg))
687 (forward-line -1))))
688 (dired-move-to-filename)))
690 ;;;###autoload
691 (defun dired-do-kill-lines (&optional arg fmt)
692 "Kill all marked lines (not the files).
693 With a prefix argument, kill that many lines starting with the current line.
694 \(A negative argument kills backward.)
695 If you use this command with a prefix argument to kill the line
696 for a file that is a directory, which you have inserted in the
697 Dired buffer as a subdirectory, then it deletes that subdirectory
698 from the buffer as well.
699 To kill an entire subdirectory \(without killing its line in the
700 parent directory), go to its directory header line and use this
701 command with a prefix argument (the value does not matter)."
702 ;; Returns count of killed lines. FMT="" suppresses message.
703 (interactive "P")
704 (if arg
705 (if (dired-get-subdir)
706 (dired-kill-subdir)
707 (dired-kill-line arg))
708 (save-excursion
709 (goto-char (point-min))
710 (let (buffer-read-only
711 (count 0)
712 (regexp (dired-marker-regexp)))
713 (while (and (not (eobp))
714 (re-search-forward regexp nil t))
715 (setq count (1+ count))
716 (delete-region (progn (beginning-of-line) (point))
717 (progn (forward-line 1) (point))))
718 (or (equal "" fmt)
719 (message (or fmt "Killed %d line%s.") count (dired-plural-s count)))
720 count))))
722 ;;;###end dired-cmd.el
724 ;;; 30K
725 ;;;###begin dired-cp.el
727 (defun dired-compress ()
728 ;; Compress or uncompress the current file.
729 ;; Return nil for success, offending filename else.
730 (let* (buffer-read-only
731 (from-file (dired-get-filename))
732 (new-file (dired-compress-file from-file)))
733 (if new-file
734 (let ((start (point)))
735 ;; Remove any preexisting entry for the name NEW-FILE.
736 (condition-case nil
737 (dired-remove-entry new-file)
738 (error nil))
739 (goto-char start)
740 ;; Now replace the current line with an entry for NEW-FILE.
741 (dired-update-file-line new-file) nil)
742 (dired-log (concat "Failed to compress" from-file))
743 from-file)))
745 (defvar dired-compress-file-suffixes
746 '(("\\.gz\\'" "" "gunzip")
747 ("\\.tgz\\'" ".tar" "gunzip")
748 ("\\.Z\\'" "" "uncompress")
749 ;; For .z, try gunzip. It might be an old gzip file,
750 ;; or it might be from compact? pack? (which?) but gunzip handles both.
751 ("\\.z\\'" "" "gunzip")
752 ("\\.dz\\'" "" "dictunzip")
753 ("\\.tbz\\'" ".tar" "bunzip2")
754 ("\\.bz2\\'" "" "bunzip2")
755 ;; This item controls naming for compression.
756 ("\\.tar\\'" ".tgz" nil))
757 "Control changes in file name suffixes for compression and uncompression.
758 Each element specifies one transformation rule, and has the form:
759 (REGEXP NEW-SUFFIX PROGRAM)
760 The rule applies when the old file name matches REGEXP.
761 The new file name is computed by deleting the part that matches REGEXP
762 (as well as anything after that), then adding NEW-SUFFIX in its place.
763 If PROGRAM is non-nil, the rule is an uncompression rule,
764 and uncompression is done by running PROGRAM.
765 Otherwise, the rule is a compression rule, and compression is done with gzip.")
767 ;;;###autoload
768 (defun dired-compress-file (file)
769 ;; Compress or uncompress FILE.
770 ;; Return the name of the compressed or uncompressed file.
771 ;; Return nil if no change in files.
772 (let ((handler (find-file-name-handler file 'dired-compress-file))
773 suffix newname
774 (suffixes dired-compress-file-suffixes))
775 ;; See if any suffix rule matches this file name.
776 (while suffixes
777 (let (case-fold-search)
778 (if (string-match (car (car suffixes)) file)
779 (setq suffix (car suffixes) suffixes nil))
780 (setq suffixes (cdr suffixes))))
781 ;; If so, compute desired new name.
782 (if suffix
783 (setq newname (concat (substring file 0 (match-beginning 0))
784 (nth 1 suffix))))
785 (cond (handler
786 (funcall handler 'dired-compress-file file))
787 ((file-symlink-p file)
788 nil)
789 ((and suffix (nth 2 suffix))
790 ;; We found an uncompression rule.
791 (if (not (dired-check-process (concat "Uncompressing " file)
792 (nth 2 suffix) file))
793 newname))
795 ;;; We don't recognize the file as compressed, so compress it.
796 ;;; Try gzip; if we don't have that, use compress.
797 (condition-case nil
798 (let ((out-name (concat file ".gz")))
799 (and (or (not (file-exists-p out-name))
800 (y-or-n-p
801 (format "File %s already exists. Really compress? "
802 out-name)))
803 (not (dired-check-process (concat "Compressing " file)
804 "gzip" "-f" file))
805 (or (file-exists-p out-name)
806 (setq out-name (concat file ".z")))
807 ;; Rename the compressed file to NEWNAME
808 ;; if it hasn't got that name already.
809 (if (and newname (not (equal newname out-name)))
810 (progn
811 (rename-file out-name newname t)
812 newname)
813 out-name)))
814 (file-error
815 (if (not (dired-check-process (concat "Compressing " file)
816 "compress" "-f" file))
817 ;; Don't use NEWNAME with `compress'.
818 (concat file ".Z"))))))))
820 (defun dired-mark-confirm (op-symbol arg)
821 ;; Request confirmation from the user that the operation described
822 ;; by OP-SYMBOL is to be performed on the marked files.
823 ;; Confirmation consists in a y-or-n question with a file list
824 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
825 ;; The files used are determined by ARG (as in dired-get-marked-files).
826 (or (eq dired-no-confirm t)
827 (memq op-symbol dired-no-confirm)
828 ;; Pass t for DISTINGUISH-ONE-MARKED so that a single file which
829 ;; is marked pops up a window. That will help the user see
830 ;; it isn't the current line file.
831 (let ((files (dired-get-marked-files t arg nil t))
832 (string (if (eq op-symbol 'compress) "Compress or uncompress"
833 (capitalize (symbol-name op-symbol)))))
834 (dired-mark-pop-up nil op-symbol files (function y-or-n-p)
835 (concat string " "
836 (dired-mark-prompt arg files) "? ")))))
838 (defun dired-map-over-marks-check (fun arg op-symbol &optional show-progress)
839 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
840 ; and display failures.
842 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
843 ; the short form of the filename) for a failure and probably logs a
844 ; detailed error explanation using function `dired-log'.
846 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
847 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
848 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
849 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
851 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
852 (if (dired-mark-confirm op-symbol arg)
853 (let* ((total-list;; all of FUN's return values
854 (dired-map-over-marks (funcall fun) arg show-progress))
855 (total (length total-list))
856 (failures (delq nil total-list))
857 (count (length failures))
858 (string (if (eq op-symbol 'compress) "Compress or uncompress"
859 (capitalize (symbol-name op-symbol)))))
860 (if (not failures)
861 (message "%s: %d file%s."
862 string total (dired-plural-s total))
863 ;; end this bunch of errors:
864 (dired-log-summary
865 (format "Failed to %s %d of %d file%s"
866 (downcase string) count total (dired-plural-s total))
867 failures)))))
869 (defvar dired-query-alist
870 '((?\y . y) (?\040 . y) ; `y' or SPC means accept once
871 (?n . n) (?\177 . n) ; `n' or DEL skips once
872 (?! . yes) ; `!' accepts rest
873 (?q . no) (?\e . no) ; `q' or ESC skips rest
874 ;; None of these keys quit - use C-g for that.
877 ;;;###autoload
878 (defun dired-query (qs-var qs-prompt &rest qs-args)
879 ;; Query user and return nil or t.
880 ;; Store answer in symbol VAR (which must initially be bound to nil).
881 ;; Format PROMPT with ARGS.
882 ;; Binding variable help-form will help the user who types the help key.
883 (let* ((char (symbol-value qs-var))
884 (action (cdr (assoc char dired-query-alist))))
885 (cond ((eq 'yes action)
886 t) ; accept, and don't ask again
887 ((eq 'no action)
888 nil) ; skip, and don't ask again
889 (t;; no lasting effects from last time we asked - ask now
890 (let ((qprompt (concat qs-prompt
891 (if help-form
892 (format " [Type yn!q or %s] "
893 (key-description
894 (char-to-string help-char)))
895 " [Type y, n, q or !] ")))
896 result elt)
897 ;; Actually it looks nicer without cursor-in-echo-area - you can
898 ;; look at the dired buffer instead of at the prompt to decide.
899 (apply 'message qprompt qs-args)
900 (setq char (set qs-var (read-char)))
901 (while (not (setq elt (assoc char dired-query-alist)))
902 (message "Invalid char - type %c for help." help-char)
903 (ding)
904 (sit-for 1)
905 (apply 'message qprompt qs-args)
906 (setq char (set qs-var (read-char))))
907 ;; Display the question with the answer.
908 (message "%s" (concat (apply 'format qprompt qs-args)
909 (char-to-string char)))
910 (memq (cdr elt) '(t y yes)))))))
912 ;;;###autoload
913 (defun dired-do-compress (&optional arg)
914 "Compress or uncompress marked (or next ARG) files."
915 (interactive "P")
916 (dired-map-over-marks-check (function dired-compress) arg 'compress t))
918 ;; Commands for Emacs Lisp files - load and byte compile
920 (defun dired-byte-compile ()
921 ;; Return nil for success, offending file name else.
922 (let* ((filename (dired-get-filename))
923 elc-file buffer-read-only failure)
924 (condition-case err
925 (save-excursion (byte-compile-file filename))
926 (error
927 (setq failure err)))
928 (setq elc-file (byte-compile-dest-file filename))
929 (or (file-exists-p elc-file)
930 (setq failure t))
931 (if failure
932 (progn
933 (dired-log "Byte compile error for %s:\n%s\n" filename failure)
934 (dired-make-relative filename))
935 (dired-remove-file elc-file)
936 (forward-line) ; insert .elc after its .el file
937 (dired-add-file elc-file)
938 nil)))
940 ;;;###autoload
941 (defun dired-do-byte-compile (&optional arg)
942 "Byte compile marked (or next ARG) Emacs Lisp files."
943 (interactive "P")
944 (dired-map-over-marks-check (function dired-byte-compile) arg 'byte-compile t))
946 (defun dired-load ()
947 ;; Return nil for success, offending file name else.
948 (let ((file (dired-get-filename)) failure)
949 (condition-case err
950 (load file nil nil t)
951 (error (setq failure err)))
952 (if (not failure)
954 (dired-log "Load error for %s:\n%s\n" file failure)
955 (dired-make-relative file))))
957 ;;;###autoload
958 (defun dired-do-load (&optional arg)
959 "Load the marked (or next ARG) Emacs Lisp files."
960 (interactive "P")
961 (dired-map-over-marks-check (function dired-load) arg 'load t))
963 ;;;###autoload
964 (defun dired-do-redisplay (&optional arg test-for-subdir)
965 "Redisplay all marked (or next ARG) files.
966 If on a subdir line, redisplay that subdirectory. In that case,
967 a prefix arg lets you edit the `ls' switches used for the new listing.
969 Dired remembers switches specified with a prefix arg, so that reverting
970 the buffer will not reset them. However, using `dired-undo' to re-insert
971 or delete subdirectories can bypass this machinery. Hence, you sometimes
972 may have to reset some subdirectory switches after a `dired-undo'.
973 You can reset all subdirectory switches to the default using
974 \\<dired-mode-map>\\[dired-reset-subdir-switches].
975 See Info node `(emacs)Subdir switches' for more details."
976 ;; Moves point if the next ARG files are redisplayed.
977 (interactive "P\np")
978 (if (and test-for-subdir (dired-get-subdir))
979 (let* ((dir (dired-get-subdir))
980 (switches (cdr (assoc-string dir dired-switches-alist))))
981 (dired-insert-subdir
983 (when arg
984 (read-string "Switches for listing: "
985 (or switches
986 dired-subdir-switches
987 dired-actual-switches)))))
988 (message "Redisplaying...")
989 ;; message much faster than making dired-map-over-marks show progress
990 (dired-uncache
991 (if (consp dired-directory) (car dired-directory) dired-directory))
992 (dired-map-over-marks (let ((fname (dired-get-filename)))
993 (message "Redisplaying... %s" fname)
994 (dired-update-file-line fname))
995 arg)
996 (dired-move-to-filename)
997 (message "Redisplaying...done")))
999 (defun dired-reset-subdir-switches ()
1000 "Set `dired-switches-alist' to nil and revert dired buffer."
1001 (interactive)
1002 (setq dired-switches-alist nil)
1003 (revert-buffer))
1005 (defun dired-update-file-line (file)
1006 ;; Delete the current line, and insert an entry for FILE.
1007 ;; If FILE is nil, then just delete the current line.
1008 ;; Keeps any marks that may be present in column one (doing this
1009 ;; here is faster than with dired-add-entry's optional arg).
1010 ;; Does not update other dired buffers. Use dired-relist-entry for that.
1011 (beginning-of-line)
1012 (let ((char (following-char)) (opoint (point))
1013 (buffer-read-only))
1014 (delete-region (point) (progn (forward-line 1) (point)))
1015 (if file
1016 (progn
1017 (dired-add-entry file nil t)
1018 ;; Replace space by old marker without moving point.
1019 ;; Faster than goto+insdel inside a save-excursion?
1020 (subst-char-in-region opoint (1+ opoint) ?\040 char))))
1021 (dired-move-to-filename))
1023 ;;;###autoload
1024 (defun dired-add-file (filename &optional marker-char)
1025 (dired-fun-in-all-buffers
1026 (file-name-directory filename) (file-name-nondirectory filename)
1027 (function dired-add-entry) filename marker-char))
1029 (defun dired-add-entry (filename &optional marker-char relative)
1030 ;; Add a new entry for FILENAME, optionally marking it
1031 ;; with MARKER-CHAR (a character, else dired-marker-char is used).
1032 ;; Note that this adds the entry `out of order' if files sorted by
1033 ;; time, etc.
1034 ;; At least this version inserts in the right subdirectory (if present).
1035 ;; And it skips "." or ".." (see `dired-trivial-filenames').
1036 ;; Hidden subdirs are exposed if a file is added there.
1037 (setq filename (directory-file-name filename))
1038 ;; Entry is always for files, even if they happen to also be directories
1039 (let* ((opoint (point))
1040 (cur-dir (dired-current-directory))
1041 (orig-file-name filename)
1042 (directory (if relative cur-dir (file-name-directory filename)))
1043 reason)
1044 (setq filename
1045 (if relative
1046 (file-relative-name filename directory)
1047 (file-name-nondirectory filename))
1048 reason
1049 (catch 'not-found
1050 (if (string= directory cur-dir)
1051 (progn
1052 (skip-chars-forward "^\r\n")
1053 (if (eq (following-char) ?\r)
1054 (dired-unhide-subdir))
1055 ;; We are already where we should be, except when
1056 ;; point is before the subdir line or its total line.
1057 (let ((p (dired-after-subdir-garbage cur-dir)))
1058 (if (< (point) p)
1059 (goto-char p))))
1060 ;; else try to find correct place to insert
1061 (if (dired-goto-subdir directory)
1062 (progn ;; unhide if necessary
1063 (if (looking-at "\r") ;; point is at end of subdir line
1064 (dired-unhide-subdir))
1065 ;; found - skip subdir and `total' line
1066 ;; and uninteresting files like . and ..
1067 ;; This better not moves into the next subdir!
1068 (dired-goto-next-nontrivial-file))
1069 ;; not found
1070 (throw 'not-found "Subdir not found")))
1071 (let (buffer-read-only opoint)
1072 (beginning-of-line)
1073 (setq opoint (point))
1074 ;; Don't expand `.'. Show just the file name within directory.
1075 (let ((default-directory directory))
1076 (dired-insert-directory directory
1077 (concat dired-actual-switches "d")
1078 (list filename)))
1079 (goto-char opoint)
1080 ;; Put in desired marker char.
1081 (when marker-char
1082 (let ((dired-marker-char
1083 (if (integerp marker-char) marker-char dired-marker-char)))
1084 (dired-mark nil)))
1085 ;; Compensate for a bug in ange-ftp.
1086 ;; It inserts the file's absolute name, rather than
1087 ;; the relative one. That may be hard to fix since it
1088 ;; is probably controlled by something in ftp.
1089 (goto-char opoint)
1090 (let ((inserted-name (dired-get-filename 'verbatim)))
1091 (if (file-name-directory inserted-name)
1092 (let (props)
1093 (end-of-line)
1094 (forward-char (- (length inserted-name)))
1095 (setq props (text-properties-at (point)))
1096 (delete-char (length inserted-name))
1097 (let ((pt (point)))
1098 (insert filename)
1099 (set-text-properties pt (point) props))
1100 (forward-char 1))
1101 (forward-line 1)))
1102 (forward-line -1)
1103 (if dired-after-readin-hook ;; the subdir-alist is not affected...
1104 (save-excursion ;; ...so we can run it right now:
1105 (save-restriction
1106 (beginning-of-line)
1107 (narrow-to-region (point) (save-excursion
1108 (forward-line 1) (point)))
1109 (run-hooks 'dired-after-readin-hook))))
1110 (dired-move-to-filename))
1111 ;; return nil if all went well
1112 nil))
1113 (if reason ; don't move away on failure
1114 (goto-char opoint))
1115 (not reason))) ; return t on success, nil else
1117 (defun dired-after-subdir-garbage (dir)
1118 ;; Return pos of first file line of DIR, skipping header and total
1119 ;; or wildcard lines.
1120 ;; Important: never moves into the next subdir.
1121 ;; DIR is assumed to be unhidden.
1122 (save-excursion
1123 (or (dired-goto-subdir dir) (error "This cannot happen"))
1124 (forward-line 1)
1125 (while (and (not (eolp)) ; don't cross subdir boundary
1126 (not (dired-move-to-filename)))
1127 (forward-line 1))
1128 (point)))
1130 ;;;###autoload
1131 (defun dired-remove-file (file)
1132 (dired-fun-in-all-buffers
1133 (file-name-directory file) (file-name-nondirectory file)
1134 (function dired-remove-entry) file))
1136 (defun dired-remove-entry (file)
1137 (save-excursion
1138 (and (dired-goto-file file)
1139 (let (buffer-read-only)
1140 (delete-region (progn (beginning-of-line) (point))
1141 (save-excursion (forward-line 1) (point)))))))
1143 ;;;###autoload
1144 (defun dired-relist-file (file)
1145 "Create or update the line for FILE in all Dired buffers it would belong in."
1146 (dired-fun-in-all-buffers (file-name-directory file)
1147 (file-name-nondirectory file)
1148 (function dired-relist-entry) file))
1150 (defun dired-relist-entry (file)
1151 ;; Relist the line for FILE, or just add it if it did not exist.
1152 ;; FILE must be an absolute file name.
1153 (let (buffer-read-only marker)
1154 ;; If cursor is already on FILE's line delete-region will cause
1155 ;; save-excursion to fail because of floating makers,
1156 ;; moving point to beginning of line. Sigh.
1157 (save-excursion
1158 (and (dired-goto-file file)
1159 (delete-region (progn (beginning-of-line)
1160 (setq marker (following-char))
1161 (point))
1162 (save-excursion (forward-line 1) (point))))
1163 (setq file (directory-file-name file))
1164 (dired-add-entry file (if (eq ?\040 marker) nil marker)))))
1166 ;;; Copy, move/rename, making hard and symbolic links
1168 (defcustom dired-backup-overwrite nil
1169 "*Non-nil if Dired should ask about making backups before overwriting files.
1170 Special value `always' suppresses confirmation."
1171 :type '(choice (const :tag "off" nil)
1172 (const :tag "suppress" always)
1173 (other :tag "ask" t))
1174 :group 'dired)
1176 ;; This is a fluid var used in dired-handle-overwrite. It should be
1177 ;; let-bound whenever dired-copy-file etc are called. See
1178 ;; dired-create-files for an example.
1179 (defvar dired-overwrite-confirmed)
1181 (defun dired-handle-overwrite (to)
1182 ;; Save old version of file TO that is to be overwritten.
1183 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1184 ;; from dired-create-files.
1185 (let (backup)
1186 (when (and dired-backup-overwrite
1187 dired-overwrite-confirmed
1188 (setq backup (car (find-backup-file-name to)))
1189 (or (eq 'always dired-backup-overwrite)
1190 (dired-query 'overwrite-backup-query
1191 "Make backup for existing file `%s'? "
1192 to)))
1193 (rename-file to backup 0) ; confirm overwrite of old backup
1194 (dired-relist-entry backup))))
1196 ;;;###autoload
1197 (defun dired-copy-file (from to ok-flag)
1198 (dired-handle-overwrite to)
1199 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1200 dired-recursive-copies))
1202 (declare-function make-symbolic-link "fileio.c")
1204 (defun dired-copy-file-recursive (from to ok-flag &optional
1205 preserve-time top recursive)
1206 (let ((attrs (file-attributes from))
1207 dirfailed)
1208 (if (and recursive
1209 (eq t (car attrs))
1210 (or (eq recursive 'always)
1211 (yes-or-no-p (format "Recursive copies of %s? " from))))
1212 ;; This is a directory.
1213 (let ((mode (file-modes from))
1214 (files
1215 (condition-case err
1216 (directory-files from nil dired-re-no-dot)
1217 (file-error
1218 (push (dired-make-relative from)
1219 dired-create-files-failures)
1220 (dired-log "Copying error for %s:\n%s\n" from err)
1221 (setq dirfailed t)
1222 nil))))
1223 (if (eq recursive 'top) (setq recursive 'always)) ; Don't ask any more.
1224 (unless dirfailed
1225 (if (file-exists-p to)
1226 (or top (dired-handle-overwrite to))
1227 (condition-case err
1228 ;; We used to call set-file-modes here, but on some
1229 ;; Linux kernels, that returns an error on vfat
1230 ;; filesystems
1231 (let ((default-mode (default-file-modes)))
1232 (unwind-protect
1233 (progn
1234 (set-default-file-modes #o700)
1235 (make-directory to))
1236 (set-default-file-modes default-mode)))
1237 (file-error
1238 (push (dired-make-relative from)
1239 dired-create-files-failures)
1240 (setq files nil)
1241 (dired-log "Copying error for %s:\n%s\n" from err)))))
1242 (dolist (file files)
1243 (let ((thisfrom (expand-file-name file from))
1244 (thisto (expand-file-name file to)))
1245 ;; Catch errors copying within a directory,
1246 ;; and report them through the dired log mechanism
1247 ;; just as our caller will do for the top level files.
1248 (condition-case err
1249 (dired-copy-file-recursive
1250 thisfrom thisto
1251 ok-flag preserve-time nil recursive)
1252 (file-error
1253 (push (dired-make-relative thisfrom)
1254 dired-create-files-failures)
1255 (dired-log "Copying error for %s:\n%s\n" thisfrom err)))))
1256 (when (file-directory-p to)
1257 (set-file-modes to mode)))
1258 ;; Not a directory.
1259 (or top (dired-handle-overwrite to))
1260 (condition-case err
1261 (if (stringp (car attrs))
1262 ;; It is a symlink
1263 (make-symbolic-link (car attrs) to ok-flag)
1264 (copy-file from to ok-flag dired-copy-preserve-time))
1265 (file-date-error
1266 (push (dired-make-relative from)
1267 dired-create-files-failures)
1268 (dired-log "Can't set date on %s:\n%s\n" from err))))))
1270 ;;;###autoload
1271 (defun dired-rename-file (file newname ok-if-already-exists)
1272 (dired-handle-overwrite newname)
1273 (rename-file file newname ok-if-already-exists) ; error is caught in -create-files
1274 ;; Silently rename the visited file of any buffer visiting this file.
1275 (and (get-file-buffer file)
1276 (with-current-buffer (get-file-buffer file)
1277 (set-visited-file-name newname nil t)))
1278 (dired-remove-file file)
1279 ;; See if it's an inserted subdir, and rename that, too.
1280 (dired-rename-subdir file newname))
1282 (defun dired-rename-subdir (from-dir to-dir)
1283 (setq from-dir (file-name-as-directory from-dir)
1284 to-dir (file-name-as-directory to-dir))
1285 (dired-fun-in-all-buffers from-dir nil
1286 (function dired-rename-subdir-1) from-dir to-dir)
1287 ;; Update visited file name of all affected buffers
1288 (let ((expanded-from-dir (expand-file-name from-dir))
1289 (blist (buffer-list)))
1290 (while blist
1291 (save-excursion
1292 (set-buffer (car blist))
1293 (if (and buffer-file-name
1294 (dired-in-this-tree buffer-file-name expanded-from-dir))
1295 (let ((modflag (buffer-modified-p))
1296 (to-file (dired-replace-in-string
1297 (concat "^" (regexp-quote from-dir))
1298 to-dir
1299 buffer-file-name)))
1300 (set-visited-file-name to-file)
1301 (set-buffer-modified-p modflag))))
1302 (setq blist (cdr blist)))))
1304 (defun dired-rename-subdir-1 (dir to)
1305 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1306 ;; one of its subdirectories is expanded in this buffer.
1307 (let ((expanded-dir (expand-file-name dir))
1308 (alist dired-subdir-alist)
1309 (elt nil))
1310 (while alist
1311 (setq elt (car alist)
1312 alist (cdr alist))
1313 (if (dired-in-this-tree (car elt) expanded-dir)
1314 ;; ELT's subdir is affected by the rename
1315 (dired-rename-subdir-2 elt dir to)))
1316 (if (equal dir default-directory)
1317 ;; if top level directory was renamed, lots of things have to be
1318 ;; updated:
1319 (progn
1320 (dired-unadvertise dir) ; we no longer dired DIR...
1321 (setq default-directory to
1322 dired-directory (expand-file-name;; this is correct
1323 ;; with and without wildcards
1324 (file-name-nondirectory dired-directory)
1325 to))
1326 (let ((new-name (file-name-nondirectory
1327 (directory-file-name dired-directory))))
1328 ;; try to rename buffer, but just leave old name if new
1329 ;; name would already exist (don't try appending "<%d>")
1330 (or (get-buffer new-name)
1331 (rename-buffer new-name)))
1332 ;; ... we dired TO now:
1333 (dired-advertise)))))
1335 (defun dired-rename-subdir-2 (elt dir to)
1336 ;; Update the headerline and dired-subdir-alist element, as well as
1337 ;; dired-switches-alist element, of directory described by
1338 ;; alist-element ELT to reflect the moving of DIR to TO. Thus, ELT
1339 ;; describes either DIR itself or a subdir of DIR.
1340 (save-excursion
1341 (let ((regexp (regexp-quote (directory-file-name dir)))
1342 (newtext (directory-file-name to))
1343 buffer-read-only)
1344 (goto-char (dired-get-subdir-min elt))
1345 ;; Update subdir headerline in buffer
1346 (if (not (looking-at dired-subdir-regexp))
1347 (error "%s not found where expected - dired-subdir-alist broken?"
1348 dir)
1349 (goto-char (match-beginning 1))
1350 (if (re-search-forward regexp (match-end 1) t)
1351 (replace-match newtext t t)
1352 (error "Expected to find `%s' in headerline of %s" dir (car elt))))
1353 ;; Update buffer-local dired-subdir-alist and dired-switches-alist
1354 (let ((cons (assoc-string (car elt) dired-switches-alist))
1355 (cur-dir (dired-normalize-subdir
1356 (dired-replace-in-string regexp newtext (car elt)))))
1357 (setcar elt cur-dir)
1358 (when cons (setcar cons cur-dir))))))
1360 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1361 (defun dired-create-files (file-creator operation fn-list name-constructor
1362 &optional marker-char)
1364 ;; Create a new file for each from a list of existing files. The user
1365 ;; is queried, dired buffers are updated, and at the end a success or
1366 ;; failure message is displayed
1368 ;; FILE-CREATOR must accept three args: oldfile newfile ok-if-already-exists
1370 ;; It is called for each file and must create newfile, the entry of
1371 ;; which will be added. The user will be queried if the file already
1372 ;; exists. If oldfile is removed by FILE-CREATOR (i.e, it is a
1373 ;; rename), it is FILE-CREATOR's responsibility to update dired
1374 ;; buffers. FILE-CREATOR must abort by signaling a file-error if it
1375 ;; could not create newfile. The error is caught and logged.
1377 ;; OPERATION (a capitalized string, e.g. `Copy') describes the
1378 ;; operation performed. It is used for error logging.
1380 ;; FN-LIST is the list of files to copy (full absolute file names).
1382 ;; NAME-CONSTRUCTOR returns a newfile for every oldfile, or nil to
1383 ;; skip. If it skips files for other reasons than a direct user
1384 ;; query, it is supposed to tell why (using dired-log).
1386 ;; Optional MARKER-CHAR is a character with which to mark every
1387 ;; newfile's entry, or t to use the current marker character if the
1388 ;; oldfile was marked.
1390 (let (dired-create-files-failures failures
1391 skipped (success-count 0) (total (length fn-list)))
1392 (let (to overwrite-query
1393 overwrite-backup-query) ; for dired-handle-overwrite
1394 (dolist (from fn-list)
1395 (setq to (funcall name-constructor from))
1396 (if (equal to from)
1397 (progn
1398 (setq to nil)
1399 (dired-log "Cannot %s to same file: %s\n"
1400 (downcase operation) from)))
1401 (if (not to)
1402 (setq skipped (cons (dired-make-relative from) skipped))
1403 (let* ((overwrite (file-exists-p to))
1404 (dired-overwrite-confirmed ; for dired-handle-overwrite
1405 (and overwrite
1406 (let ((help-form '(format "\
1407 Type SPC or `y' to overwrite file `%s',
1408 DEL or `n' to skip to next,
1409 ESC or `q' to not overwrite any of the remaining files,
1410 `!' to overwrite all remaining files with no more questions." to)))
1411 (dired-query 'overwrite-query
1412 "Overwrite `%s'?" to))))
1413 ;; must determine if FROM is marked before file-creator
1414 ;; gets a chance to delete it (in case of a move).
1415 (actual-marker-char
1416 (cond ((integerp marker-char) marker-char)
1417 (marker-char (dired-file-marker from)) ; slow
1418 (t nil))))
1419 (condition-case err
1420 (progn
1421 (funcall file-creator from to dired-overwrite-confirmed)
1422 (if overwrite
1423 ;; If we get here, file-creator hasn't been aborted
1424 ;; and the old entry (if any) has to be deleted
1425 ;; before adding the new entry.
1426 (dired-remove-file to))
1427 (setq success-count (1+ success-count))
1428 (message "%s: %d of %d" operation success-count total)
1429 (dired-add-file to actual-marker-char))
1430 (file-error ; FILE-CREATOR aborted
1431 (progn
1432 (push (dired-make-relative from)
1433 failures)
1434 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1435 operation from to err))))))))
1436 (cond
1437 (dired-create-files-failures
1438 (setq failures (nconc failures dired-create-files-failures))
1439 (dired-log-summary
1440 (format "%s failed for %d file%s in %d requests"
1441 operation (length failures)
1442 (dired-plural-s (length failures))
1443 total)
1444 failures))
1445 (failures
1446 (dired-log-summary
1447 (format "%s failed for %d of %d file%s"
1448 operation (length failures)
1449 total (dired-plural-s total))
1450 failures))
1451 (skipped
1452 (dired-log-summary
1453 (format "%s: %d of %d file%s skipped"
1454 operation (length skipped) total
1455 (dired-plural-s total))
1456 skipped))
1458 (message "%s: %s file%s"
1459 operation success-count (dired-plural-s success-count)))))
1460 (dired-move-to-filename))
1462 (defun dired-do-create-files (op-symbol file-creator operation arg
1463 &optional marker-char op1
1464 how-to)
1465 "Create a new file for each marked file.
1466 Prompts user for target, which is a directory in which to create
1467 the new files. Target may also be a plain file if only one marked
1468 file exists. The way the default for the target directory is
1469 computed depends on the value of `dired-dwim-target-directory'.
1470 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1471 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1472 FILE-CREATOR and OPERATION as in `dired-create-files'.
1473 ARG as in `dired-get-marked-files'.
1474 Optional arg MARKER-CHAR as in `dired-create-files'.
1475 Optional arg OP1 is an alternate form for OPERATION if there is
1476 only one file.
1477 Optional arg HOW-TO determiness how to treat the target.
1478 If HOW-TO is nil, use `file-directory-p' to determine if the
1479 target is a directory. If so, the marked file(s) are created
1480 inside that directory. Otherwise, the target is a plain file;
1481 an error is raised unless there is exactly one marked file.
1482 If HOW-TO is t, target is always treated as a plain file.
1483 Otherwise, HOW-TO should be a function of one argument, TARGET.
1484 If its return value is nil, TARGET is regarded as a plain file.
1485 If it return value is a list, TARGET is a generalized
1486 directory (e.g. some sort of archive). The first element of
1487 this list must be a function with at least four arguments:
1488 operation - as OPERATION above.
1489 rfn-list - list of the relative names for the marked files.
1490 fn-list - list of the absolute names for the marked files.
1491 target - the name of the target itself.
1492 The rest of into-dir are optional arguments.
1493 For any other return value, TARGET is treated as a directory."
1494 (or op1 (setq op1 operation))
1495 (let* ((fn-list (dired-get-marked-files nil arg))
1496 (rfn-list (mapcar (function dired-make-relative) fn-list))
1497 (dired-one-file ; fluid variable inside dired-create-files
1498 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1499 (target-dir (dired-dwim-target-directory))
1500 (default (and dired-one-file
1501 (expand-file-name (file-name-nondirectory (car fn-list))
1502 target-dir)))
1503 (target (expand-file-name ; fluid variable inside dired-create-files
1504 (dired-mark-read-file-name
1505 (concat (if dired-one-file op1 operation) " %s to: ")
1506 target-dir op-symbol arg rfn-list default)))
1507 (into-dir (cond ((null how-to)
1508 ;; Allow DOS/Windows users to change the letter
1509 ;; case of a directory. If we don't test these
1510 ;; conditions up front, file-directory-p below
1511 ;; will return t because the filesystem is
1512 ;; case-insensitive, and Emacs will try to move
1513 ;; foo -> foo/foo, which fails.
1514 (if (and (memq system-type '(ms-dos windows-nt cygwin))
1515 (eq op-symbol 'move)
1516 dired-one-file
1517 (string= (downcase
1518 (expand-file-name (car fn-list)))
1519 (downcase
1520 (expand-file-name target)))
1521 (not (string=
1522 (file-name-nondirectory (car fn-list))
1523 (file-name-nondirectory target))))
1525 (file-directory-p target)))
1526 ((eq how-to t) nil)
1527 (t (funcall how-to target)))))
1528 (if (and (consp into-dir) (functionp (car into-dir)))
1529 (apply (car into-dir) operation rfn-list fn-list target (cdr into-dir))
1530 (if (not (or dired-one-file into-dir))
1531 (error "Marked %s: target must be a directory: %s" operation target))
1532 ;; rename-file bombs when moving directories unless we do this:
1533 (or into-dir (setq target (directory-file-name target)))
1534 (dired-create-files
1535 file-creator operation fn-list
1536 (if into-dir ; target is a directory
1537 ;; This function uses fluid variable target when called
1538 ;; inside dired-create-files:
1539 (function
1540 (lambda (from)
1541 (expand-file-name (file-name-nondirectory from) target)))
1542 (function (lambda (from) target)))
1543 marker-char))))
1545 ;; Read arguments for a marked-files command that wants a file name,
1546 ;; perhaps popping up the list of marked files.
1547 ;; ARG is the prefix arg and indicates whether the files came from
1548 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1549 ;; If the current file was used, the list has but one element and ARG
1550 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1551 ;; DEFAULT is the default value to return if the user just hits RET;
1552 ;; if it is omitted or nil, then the name of the directory is used.
1554 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1555 &optional default)
1556 (dired-mark-pop-up
1557 nil op-symbol files
1558 (function read-file-name)
1559 (format prompt (dired-mark-prompt arg files)) dir default))
1561 (defun dired-dwim-target-directory ()
1562 ;; Try to guess which target directory the user may want.
1563 ;; If there is a dired buffer displayed in the next window, use
1564 ;; its current subdir, else use current subdir of this dired buffer.
1565 (let ((this-dir (and (eq major-mode 'dired-mode)
1566 (dired-current-directory))))
1567 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1568 (if dired-dwim-target
1569 (let* ((other-buf (window-buffer (next-window)))
1570 (other-dir (save-excursion
1571 (set-buffer other-buf)
1572 (and (eq major-mode 'dired-mode)
1573 (dired-current-directory)))))
1574 (or other-dir this-dir))
1575 this-dir)))
1577 ;;;###autoload
1578 (defun dired-create-directory (directory)
1579 "Create a directory called DIRECTORY."
1580 (interactive
1581 (list (read-file-name "Create directory: " (dired-current-directory))))
1582 (let* ((expanded (directory-file-name (expand-file-name directory)))
1583 (try expanded) new)
1584 ;; Find the topmost nonexistent parent dir (variable `new')
1585 (while (and try (not (file-exists-p try)) (not (equal new try)))
1586 (setq new try
1587 try (directory-file-name (file-name-directory try))))
1588 (make-directory expanded t)
1589 (when new
1590 (dired-add-file new)
1591 (dired-move-to-filename))))
1593 (defun dired-into-dir-with-symlinks (target)
1594 (and (file-directory-p target)
1595 (not (file-symlink-p target))))
1596 ;; This may not always be what you want, especially if target is your
1597 ;; home directory and it happens to be a symbolic link, as is often the
1598 ;; case with NFS and automounters. Or if you want to make symlinks
1599 ;; into directories that themselves are only symlinks, also quite
1600 ;; common.
1602 ;; So we don't use this function as value for HOW-TO in
1603 ;; dired-do-symlink, which has the minor disadvantage of
1604 ;; making links *into* a symlinked-dir, when you really wanted to
1605 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1606 ;; just have to remove that symlink by hand before making your marked
1607 ;; symlinks.
1609 (defvar dired-copy-how-to-fn nil
1610 "nil or a function used by `dired-do-copy' to determine target.
1611 See HOW-TO argument for `dired-do-create-files'.")
1613 ;;;###autoload
1614 (defun dired-do-copy (&optional arg)
1615 "Copy all marked (or next ARG) files, or copy the current file.
1616 This normally preserves the last-modified date when copying.
1617 When operating on just the current file, you specify the new name.
1618 When operating on multiple or marked files, you specify a directory,
1619 and new copies of these files are made in that directory
1620 with the same names that the files currently have. The default
1621 suggested for the target directory depends on the value of
1622 `dired-dwim-target', which see.
1624 This command copies symbolic links by creating new ones,
1625 like `cp -d'."
1626 (interactive "P")
1627 (let ((dired-recursive-copies dired-recursive-copies))
1628 (dired-do-create-files 'copy (function dired-copy-file)
1629 "Copy"
1630 arg dired-keep-marker-copy
1631 nil dired-copy-how-to-fn)))
1633 ;;;###autoload
1634 (defun dired-do-symlink (&optional arg)
1635 "Make symbolic links to current file or all marked (or next ARG) files.
1636 When operating on just the current file, you specify the new name.
1637 When operating on multiple or marked files, you specify a directory
1638 and new symbolic links are made in that directory
1639 with the same names that the files currently have. The default
1640 suggested for the target directory depends on the value of
1641 `dired-dwim-target', which see.
1643 For relative symlinks, use \\[dired-do-relsymlink]."
1644 (interactive "P")
1645 (dired-do-create-files 'symlink (function make-symbolic-link)
1646 "Symlink" arg dired-keep-marker-symlink))
1648 ;;;###autoload
1649 (defun dired-do-hardlink (&optional arg)
1650 "Add names (hard links) current file or all marked (or next ARG) files.
1651 When operating on just the current file, you specify the new name.
1652 When operating on multiple or marked files, you specify a directory
1653 and new hard links are made in that directory
1654 with the same names that the files currently have. The default
1655 suggested for the target directory depends on the value of
1656 `dired-dwim-target', which see."
1657 (interactive "P")
1658 (dired-do-create-files 'hardlink (function dired-hardlink)
1659 "Hardlink" arg dired-keep-marker-hardlink))
1661 (defun dired-hardlink (file newname &optional ok-if-already-exists)
1662 (dired-handle-overwrite newname)
1663 ;; error is caught in -create-files
1664 (add-name-to-file file newname ok-if-already-exists)
1665 ;; Update the link count
1666 (dired-relist-file file))
1668 ;;;###autoload
1669 (defun dired-do-rename (&optional arg)
1670 "Rename current file or all marked (or next ARG) files.
1671 When renaming just the current file, you specify the new name.
1672 When renaming multiple or marked files, you specify a directory.
1673 This command also renames any buffers that are visiting the files.
1674 The default suggested for the target directory depends on the value
1675 of `dired-dwim-target', which see."
1676 (interactive "P")
1677 (dired-do-create-files 'move (function dired-rename-file)
1678 "Move" arg dired-keep-marker-rename "Rename"))
1679 ;;;###end dired-cp.el
1681 ;;; 5K
1682 ;;;###begin dired-re.el
1683 (defun dired-do-create-files-regexp
1684 (file-creator operation arg regexp newname &optional whole-name marker-char)
1685 ;; Create a new file for each marked file using regexps.
1686 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1687 ;; ARG as in dired-get-marked-files.
1688 ;; Matches each marked file against REGEXP and constructs the new
1689 ;; filename from NEWNAME (like in function replace-match).
1690 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1691 ;; instead of only the non-directory part of the file.
1692 ;; Optional arg MARKER-CHAR as in dired-create-files.
1693 (let* ((fn-list (dired-get-marked-files nil arg))
1694 (fn-count (length fn-list))
1695 (operation-prompt (concat operation " `%s' to `%s'?"))
1696 (rename-regexp-help-form (format "\
1697 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1698 `!' to %s all remaining matches with no more questions."
1699 (downcase operation)
1700 (downcase operation)))
1701 (regexp-name-constructor
1702 ;; Function to construct new filename using REGEXP and NEWNAME:
1703 (if whole-name ; easy (but rare) case
1704 (function
1705 (lambda (from)
1706 (let ((to (dired-string-replace-match regexp from newname))
1707 ;; must bind help-form directly around call to
1708 ;; dired-query
1709 (help-form rename-regexp-help-form))
1710 (if to
1711 (and (dired-query 'rename-regexp-query
1712 operation-prompt
1713 from
1716 (dired-log "%s: %s did not match regexp %s\n"
1717 operation from regexp)))))
1718 ;; not whole-name, replace non-directory part only
1719 (function
1720 (lambda (from)
1721 (let* ((new (dired-string-replace-match
1722 regexp (file-name-nondirectory from) newname))
1723 (to (and new ; nil means there was no match
1724 (expand-file-name new
1725 (file-name-directory from))))
1726 (help-form rename-regexp-help-form))
1727 (if to
1728 (and (dired-query 'rename-regexp-query
1729 operation-prompt
1730 (dired-make-relative from)
1731 (dired-make-relative to))
1733 (dired-log "%s: %s did not match regexp %s\n"
1734 operation (file-name-nondirectory from) regexp)))))))
1735 rename-regexp-query)
1736 (dired-create-files
1737 file-creator operation fn-list regexp-name-constructor marker-char)))
1739 (defun dired-mark-read-regexp (operation)
1740 ;; Prompt user about performing OPERATION.
1741 ;; Read and return list of: regexp newname arg whole-name.
1742 (let* ((whole-name
1743 (equal 0 (prefix-numeric-value current-prefix-arg)))
1744 (arg
1745 (if whole-name nil current-prefix-arg))
1746 (regexp
1747 (dired-read-regexp
1748 (concat (if whole-name "Abs. " "") operation " from (regexp): ")))
1749 (newname
1750 (read-string
1751 (concat (if whole-name "Abs. " "") operation " " regexp " to: "))))
1752 (list regexp newname arg whole-name)))
1754 ;;;###autoload
1755 (defun dired-do-rename-regexp (regexp newname &optional arg whole-name)
1756 "Rename selected files whose names match REGEXP to NEWNAME.
1758 With non-zero prefix argument ARG, the command operates on the next ARG
1759 files. Otherwise, it operates on all the marked files, or the current
1760 file if none are marked.
1762 As each match is found, the user must type a character saying
1763 what to do with it. For directions, type \\[help-command] at that time.
1764 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1765 REGEXP defaults to the last regexp used.
1767 With a zero prefix arg, renaming by regexp affects the absolute file name.
1768 Normally, only the non-directory part of the file name is used and changed."
1769 (interactive (dired-mark-read-regexp "Rename"))
1770 (dired-do-create-files-regexp
1771 (function dired-rename-file)
1772 "Rename" arg regexp newname whole-name dired-keep-marker-rename))
1774 ;;;###autoload
1775 (defun dired-do-copy-regexp (regexp newname &optional arg whole-name)
1776 "Copy selected files whose names match REGEXP to NEWNAME.
1777 See function `dired-do-rename-regexp' for more info."
1778 (interactive (dired-mark-read-regexp "Copy"))
1779 (let ((dired-recursive-copies nil)) ; No recursive copies.
1780 (dired-do-create-files-regexp
1781 (function dired-copy-file)
1782 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1783 arg regexp newname whole-name dired-keep-marker-copy)))
1785 ;;;###autoload
1786 (defun dired-do-hardlink-regexp (regexp newname &optional arg whole-name)
1787 "Hardlink selected files whose names match REGEXP to NEWNAME.
1788 See function `dired-do-rename-regexp' for more info."
1789 (interactive (dired-mark-read-regexp "HardLink"))
1790 (dired-do-create-files-regexp
1791 (function add-name-to-file)
1792 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink))
1794 ;;;###autoload
1795 (defun dired-do-symlink-regexp (regexp newname &optional arg whole-name)
1796 "Symlink selected files whose names match REGEXP to NEWNAME.
1797 See function `dired-do-rename-regexp' for more info."
1798 (interactive (dired-mark-read-regexp "SymLink"))
1799 (dired-do-create-files-regexp
1800 (function make-symbolic-link)
1801 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink))
1803 (defun dired-create-files-non-directory
1804 (file-creator basename-constructor operation arg)
1805 ;; Perform FILE-CREATOR on the non-directory part of marked files
1806 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1807 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1808 (let (rename-non-directory-query)
1809 (dired-create-files
1810 file-creator
1811 operation
1812 (dired-get-marked-files nil arg)
1813 (function
1814 (lambda (from)
1815 (let ((to (concat (file-name-directory from)
1816 (funcall basename-constructor
1817 (file-name-nondirectory from)))))
1818 (and (let ((help-form (format "\
1819 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1820 `!' to %s all remaining matches with no more questions."
1821 (downcase operation)
1822 (downcase operation))))
1823 (dired-query 'rename-non-directory-query
1824 (concat operation " `%s' to `%s'")
1825 (dired-make-relative from)
1826 (dired-make-relative to)))
1827 to))))
1828 dired-keep-marker-rename)))
1830 (defun dired-rename-non-directory (basename-constructor operation arg)
1831 (dired-create-files-non-directory
1832 (function dired-rename-file)
1833 basename-constructor operation arg))
1835 ;;;###autoload
1836 (defun dired-upcase (&optional arg)
1837 "Rename all marked (or next ARG) files to upper case."
1838 (interactive "P")
1839 (dired-rename-non-directory (function upcase) "Rename upcase" arg))
1841 ;;;###autoload
1842 (defun dired-downcase (&optional arg)
1843 "Rename all marked (or next ARG) files to lower case."
1844 (interactive "P")
1845 (dired-rename-non-directory (function downcase) "Rename downcase" arg))
1847 ;;;###end dired-re.el
1849 ;;; 13K
1850 ;;;###begin dired-ins.el
1852 ;;;###autoload
1853 (defun dired-maybe-insert-subdir (dirname &optional
1854 switches no-error-if-not-dir-p)
1855 "Insert this subdirectory into the same dired buffer.
1856 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1857 else inserts it at its natural place (as `ls -lR' would have done).
1858 With a prefix arg, you may edit the ls switches used for this listing.
1859 You can add `R' to the switches to expand the whole tree starting at
1860 this subdirectory.
1861 This function takes some pains to conform to `ls -lR' output.
1863 Dired remembers switches specified with a prefix arg, so that reverting
1864 the buffer will not reset them. However, using `dired-undo' to re-insert
1865 or delete subdirectories can bypass this machinery. Hence, you sometimes
1866 may have to reset some subdirectory switches after a `dired-undo'.
1867 You can reset all subdirectory switches to the default using
1868 \\<dired-mode-map>\\[dired-reset-subdir-switches].
1869 See Info node `(emacs)Subdir switches' for more details."
1870 (interactive
1871 (list (dired-get-filename)
1872 (if current-prefix-arg
1873 (read-string "Switches for listing: "
1874 (or dired-subdir-switches dired-actual-switches)))))
1875 (let ((opoint (point)))
1876 ;; We don't need a marker for opoint as the subdir is always
1877 ;; inserted *after* opoint.
1878 (setq dirname (file-name-as-directory dirname))
1879 (or (and (not switches)
1880 (dired-goto-subdir dirname))
1881 (dired-insert-subdir dirname switches no-error-if-not-dir-p))
1882 ;; Push mark so that it's easy to find back. Do this after the
1883 ;; insert message so that the user sees the `Mark set' message.
1884 (push-mark opoint)))
1886 ;;;###autoload
1887 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
1888 "Insert this subdirectory into the same dired buffer.
1889 If it is already present, overwrites previous entry,
1890 else inserts it at its natural place (as `ls -lR' would have done).
1891 With a prefix arg, you may edit the `ls' switches used for this listing.
1892 You can add `R' to the switches to expand the whole tree starting at
1893 this subdirectory.
1894 This function takes some pains to conform to `ls -lR' output."
1895 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1896 ;; Prospero where dired-ls does the right thing, but
1897 ;; file-directory-p has not been redefined.
1898 (interactive
1899 (list (dired-get-filename)
1900 (if current-prefix-arg
1901 (read-string "Switches for listing: "
1902 (or dired-subdir-switches dired-actual-switches)))))
1903 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1904 (or no-error-if-not-dir-p
1905 (file-directory-p dirname)
1906 (error "Attempt to insert a non-directory: %s" dirname))
1907 (let ((elt (assoc dirname dired-subdir-alist))
1908 (cons (assoc-string dirname dired-switches-alist))
1909 (modflag (buffer-modified-p))
1910 (old-switches switches)
1911 switches-have-R mark-alist case-fold-search buffer-read-only)
1912 (and (not switches) cons (setq switches (cdr cons)))
1913 (dired-insert-subdir-validate dirname switches)
1914 ;; case-fold-search is nil now, so we can test for capital `R':
1915 (if (setq switches-have-R (and switches (string-match "R" switches)))
1916 ;; avoid duplicated subdirs
1917 (setq mark-alist (dired-kill-tree dirname t)))
1918 (if elt
1919 ;; If subdir is already present, remove it and remember its marks
1920 (setq mark-alist (nconc (dired-insert-subdir-del elt) mark-alist))
1921 (dired-insert-subdir-newpos dirname)) ; else compute new position
1922 (dired-insert-subdir-doupdate
1923 dirname elt (dired-insert-subdir-doinsert dirname switches))
1924 (when old-switches
1925 (if cons
1926 (setcdr cons switches)
1927 (push (cons dirname switches) dired-switches-alist)))
1928 (when switches-have-R
1929 (dired-build-subdir-alist switches)
1930 (setq switches (dired-replace-in-string "R" "" switches))
1931 (dolist (cur-ass dired-subdir-alist)
1932 (let ((cur-dir (car cur-ass)))
1933 (and (dired-in-this-tree cur-dir dirname)
1934 (let ((cur-cons (assoc-string cur-dir dired-switches-alist)))
1935 (if cur-cons
1936 (setcdr cur-cons switches)
1937 (push (cons cur-dir switches) dired-switches-alist)))))))
1938 (dired-initial-position dirname)
1939 (save-excursion (dired-mark-remembered mark-alist))
1940 (restore-buffer-modified-p modflag)))
1942 (defun dired-insert-subdir-validate (dirname &optional switches)
1943 ;; Check that it is valid to insert DIRNAME with SWITCHES.
1944 ;; Signal an error if invalid (e.g. user typed `i' on `..').
1945 (or (dired-in-this-tree dirname (expand-file-name default-directory))
1946 (error "%s: not in this directory tree" dirname))
1947 (let ((real-switches (or switches dired-subdir-switches)))
1948 (when real-switches
1949 (let (case-fold-search)
1950 (mapcar
1951 (function
1952 (lambda (x)
1953 (or (eq (null (string-match x real-switches))
1954 (null (string-match x dired-actual-switches)))
1955 (error
1956 "Can't have dirs with and without -%s switches together" x))))
1957 ;; all switches that make a difference to dired-get-filename:
1958 '("F" "b"))))))
1960 (defun dired-alist-add (dir new-marker)
1961 ;; Add new DIR at NEW-MARKER. Sort alist.
1962 (dired-alist-add-1 dir new-marker)
1963 (dired-alist-sort))
1965 (defun dired-alist-sort ()
1966 ;; Keep the alist sorted on buffer position.
1967 (setq dired-subdir-alist
1968 (sort dired-subdir-alist
1969 (function (lambda (elt1 elt2)
1970 (> (dired-get-subdir-min elt1)
1971 (dired-get-subdir-min elt2)))))))
1973 (defun dired-kill-tree (dirname &optional remember-marks kill-root)
1974 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
1975 Interactively, you can kill DIRNAME as well by using a prefix argument.
1976 In interactive use, the command prompts for DIRNAME.
1978 When called from Lisp, if REMEMBER-MARKS is non-nil, return an alist
1979 of marked files. If KILL-ROOT is non-nil, kill DIRNAME as well."
1980 (interactive "DKill tree below directory: \ni\nP")
1981 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1982 (let ((s-alist dired-subdir-alist) dir m-alist)
1983 (while s-alist
1984 (setq dir (car (car s-alist))
1985 s-alist (cdr s-alist))
1986 (and (or kill-root (not (string-equal dir dirname)))
1987 (dired-in-this-tree dir dirname)
1988 (dired-goto-subdir dir)
1989 (setq m-alist (nconc (dired-kill-subdir remember-marks) m-alist))))
1990 m-alist))
1992 (defun dired-insert-subdir-newpos (new-dir)
1993 ;; Find pos for new subdir, according to tree order.
1994 ;;(goto-char (point-max))
1995 (let ((alist dired-subdir-alist) elt dir pos new-pos)
1996 (while alist
1997 (setq elt (car alist)
1998 alist (cdr alist)
1999 dir (car elt)
2000 pos (dired-get-subdir-min elt))
2001 (if (dired-tree-lessp dir new-dir)
2002 ;; Insert NEW-DIR after DIR
2003 (setq new-pos (dired-get-subdir-max elt)
2004 alist nil)))
2005 (goto-char new-pos))
2006 ;; want a separating newline between subdirs
2007 (or (eobp)
2008 (forward-line -1))
2009 (insert "\n")
2010 (point))
2012 (defun dired-insert-subdir-del (element)
2013 ;; Erase an already present subdir (given by ELEMENT) from buffer.
2014 ;; Move to that buffer position. Return a mark-alist.
2015 (let ((begin-marker (dired-get-subdir-min element)))
2016 (goto-char begin-marker)
2017 ;; Are at beginning of subdir (and inside it!). Now determine its end:
2018 (goto-char (dired-subdir-max))
2019 (or (eobp);; want a separating newline _between_ subdirs:
2020 (forward-char -1))
2021 (prog1
2022 (dired-remember-marks begin-marker (point))
2023 (delete-region begin-marker (point)))))
2025 (defun dired-insert-subdir-doinsert (dirname switches)
2026 ;; Insert ls output after point.
2027 ;; Return the boundary of the inserted text (as list of BEG and END).
2028 (save-excursion
2029 (let ((begin (point)))
2030 (let ((dired-actual-switches
2031 (or switches
2032 dired-subdir-switches
2033 (dired-replace-in-string "R" "" dired-actual-switches))))
2034 (if (equal dirname (car (car (last dired-subdir-alist))))
2035 ;; If doing the top level directory of the buffer,
2036 ;; redo it as specified in dired-directory.
2037 (dired-readin-insert)
2038 (dired-insert-directory dirname dired-actual-switches nil nil t)))
2039 (list begin (point)))))
2041 (defun dired-insert-subdir-doupdate (dirname elt beg-end)
2042 ;; Point is at the correct subdir alist position for ELT,
2043 ;; BEG-END is the subdir-region (as list of begin and end).
2044 (if elt ; subdir was already present
2045 ;; update its position (should actually be unchanged)
2046 (set-marker (dired-get-subdir-min elt) (point-marker))
2047 (dired-alist-add dirname (point-marker)))
2048 ;; The hook may depend on the subdir-alist containing the just
2049 ;; inserted subdir, so run it after dired-alist-add:
2050 (if dired-after-readin-hook
2051 (save-excursion
2052 (let ((begin (nth 0 beg-end))
2053 (end (nth 1 beg-end)))
2054 (goto-char begin)
2055 (save-restriction
2056 (narrow-to-region begin end)
2057 ;; hook may add or delete lines, but the subdir boundary
2058 ;; marker floats
2059 (run-hooks 'dired-after-readin-hook))))))
2061 (defun dired-tree-lessp (dir1 dir2)
2062 ;; Lexicographic order on file name components, like `ls -lR':
2063 ;; DIR1 < DIR2 if DIR1 comes *before* DIR2 in an `ls -lR' listing,
2064 ;; i.e., if DIR1 is a (grand)parent dir of DIR2,
2065 ;; or DIR1 and DIR2 are in the same parentdir and their last
2066 ;; components are string-lessp.
2067 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
2068 ;; string-lessp could arguably be replaced by file-newer-than-file-p
2069 ;; if dired-actual-switches contained `t'.
2070 (setq dir1 (file-name-as-directory dir1)
2071 dir2 (file-name-as-directory dir2))
2072 (let ((components-1 (dired-split "/" dir1))
2073 (components-2 (dired-split "/" dir2)))
2074 (while (and components-1
2075 components-2
2076 (equal (car components-1) (car components-2)))
2077 (setq components-1 (cdr components-1)
2078 components-2 (cdr components-2)))
2079 (let ((c1 (car components-1))
2080 (c2 (car components-2)))
2082 (cond ((and c1 c2)
2083 (string-lessp c1 c2))
2084 ((and (null c1) (null c2))
2085 nil) ; they are equal, not lessp
2086 ((null c1) ; c2 is a subdir of c1: c1<c2
2088 ((null c2) ; c1 is a subdir of c2: c1>c2
2089 nil)
2090 (t (error "This can't happen"))))))
2092 ;; There should be a builtin split function - inverse to mapconcat.
2093 (defun dired-split (pat str &optional limit)
2094 "Splitting on regexp PAT, turn string STR into a list of substrings.
2095 Optional third arg LIMIT (>= 1) is a limit to the length of the
2096 resulting list.
2097 Thus, if SEP is a regexp that only matches itself,
2099 (mapconcat 'identity (dired-split SEP STRING) SEP)
2101 is always equal to STRING."
2102 (let* ((start (string-match pat str))
2103 (result (list (substring str 0 start)))
2104 (count 1)
2105 (end (if start (match-end 0))))
2106 (if end ; else nothing left
2107 (while (and (or (not (integerp limit))
2108 (< count limit))
2109 (string-match pat str end))
2110 (setq start (match-beginning 0)
2111 count (1+ count)
2112 result (cons (substring str end start) result)
2113 end (match-end 0)
2114 start end)
2116 (if (and (or (not (integerp limit))
2117 (< count limit))
2118 end) ; else nothing left
2119 (setq result
2120 (cons (substring str end) result)))
2121 (nreverse result)))
2123 ;;; moving by subdirectories
2125 ;;;###autoload
2126 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip)
2127 "Go to previous subdirectory, regardless of level.
2128 When called interactively and not on a subdir line, go to this subdir's line."
2129 ;;(interactive "p")
2130 (interactive
2131 (list (if current-prefix-arg
2132 (prefix-numeric-value current-prefix-arg)
2133 ;; if on subdir start already, don't stay there!
2134 (if (dired-get-subdir) 1 0))))
2135 (dired-next-subdir (- arg) no-error-if-not-found no-skip))
2137 (defun dired-subdir-min ()
2138 (save-excursion
2139 (if (not (dired-prev-subdir 0 t t))
2140 (error "Not in a subdir!")
2141 (point))))
2143 ;;;###autoload
2144 (defun dired-goto-subdir (dir)
2145 "Go to end of header line of DIR in this dired buffer.
2146 Return value of point on success, otherwise return nil.
2147 The next char is either \\n, or \\r if DIR is hidden."
2148 (interactive
2149 (prog1 ; let push-mark display its message
2150 (list (expand-file-name
2151 (completing-read "Goto in situ directory: " ; prompt
2152 dired-subdir-alist ; table
2153 nil ; predicate
2154 t ; require-match
2155 (dired-current-directory))))
2156 (push-mark)))
2157 (setq dir (file-name-as-directory dir))
2158 (let ((elt (assoc dir dired-subdir-alist)))
2159 (and elt
2160 (goto-char (dired-get-subdir-min elt))
2161 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
2162 ;; at either \r or \n after this function succeeds.
2163 (progn (skip-chars-forward "^\r\n")
2164 (point)))))
2166 ;;;###autoload
2167 (defun dired-mark-subdir-files ()
2168 "Mark all files except `.' and `..' in current subdirectory.
2169 If the Dired buffer shows multiple directories, this command
2170 marks the files listed in the subdirectory that point is in."
2171 (interactive)
2172 (let ((p-min (dired-subdir-min)))
2173 (dired-mark-files-in-region p-min (dired-subdir-max))))
2175 ;;;###autoload
2176 (defun dired-kill-subdir (&optional remember-marks)
2177 "Remove all lines of current subdirectory.
2178 Lower levels are unaffected."
2179 ;; With optional REMEMBER-MARKS, return a mark-alist.
2180 (interactive)
2181 (let* ((beg (dired-subdir-min))
2182 (end (dired-subdir-max))
2183 (modflag (buffer-modified-p))
2184 (cur-dir (dired-current-directory))
2185 (cons (assoc-string cur-dir dired-switches-alist))
2186 buffer-read-only)
2187 (if (equal cur-dir default-directory)
2188 (error "Attempt to kill top level directory"))
2189 (prog1
2190 (if remember-marks (dired-remember-marks beg end))
2191 (delete-region beg end)
2192 (if (eobp) ; don't leave final blank line
2193 (delete-char -1))
2194 (dired-unsubdir cur-dir)
2195 (when cons
2196 (setq dired-switches-alist (delete cons dired-switches-alist)))
2197 (restore-buffer-modified-p modflag))))
2199 (defun dired-unsubdir (dir)
2200 ;; Remove DIR from the alist
2201 (setq dired-subdir-alist
2202 (delq (assoc dir dired-subdir-alist) dired-subdir-alist)))
2204 ;;;###autoload
2205 (defun dired-tree-up (arg)
2206 "Go up ARG levels in the dired tree."
2207 (interactive "p")
2208 (let ((dir (dired-current-directory)))
2209 (while (>= arg 1)
2210 (setq arg (1- arg)
2211 dir (file-name-directory (directory-file-name dir))))
2212 ;;(setq dir (expand-file-name dir))
2213 (or (dired-goto-subdir dir)
2214 (error "Cannot go up to %s - not in this tree" dir))))
2216 ;;;###autoload
2217 (defun dired-tree-down ()
2218 "Go down in the dired tree."
2219 (interactive)
2220 (let ((dir (dired-current-directory)) ; has slash
2221 pos case-fold-search) ; filenames are case sensitive
2222 (let ((rest (reverse dired-subdir-alist)) elt)
2223 (while rest
2224 (setq elt (car rest)
2225 rest (cdr rest))
2226 (if (dired-in-this-tree (directory-file-name (car elt)) dir)
2227 (setq rest nil
2228 pos (dired-goto-subdir (car elt))))))
2229 (if pos
2230 (goto-char pos)
2231 (error "At the bottom"))))
2233 ;;; hiding
2235 (defun dired-unhide-subdir ()
2236 (let (buffer-read-only)
2237 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?\r ?\n)))
2239 (defun dired-hide-check ()
2240 (or selective-display
2241 (error "selective-display must be t for subdir hiding to work!")))
2243 (defun dired-subdir-hidden-p (dir)
2244 (and selective-display
2245 (save-excursion
2246 (dired-goto-subdir dir)
2247 (looking-at "\r"))))
2249 ;;;###autoload
2250 (defun dired-hide-subdir (arg)
2251 "Hide or unhide the current subdirectory and move to next directory.
2252 Optional prefix arg is a repeat factor.
2253 Use \\[dired-hide-all] to (un)hide all directories."
2254 (interactive "p")
2255 (dired-hide-check)
2256 (let ((modflag (buffer-modified-p)))
2257 (while (>= (setq arg (1- arg)) 0)
2258 (let* ((cur-dir (dired-current-directory))
2259 (hidden-p (dired-subdir-hidden-p cur-dir))
2260 (elt (assoc cur-dir dired-subdir-alist))
2261 (end-pos (1- (dired-get-subdir-max elt)))
2262 buffer-read-only)
2263 ;; keep header line visible, hide rest
2264 (goto-char (dired-get-subdir-min elt))
2265 (skip-chars-forward "^\n\r")
2266 (if hidden-p
2267 (subst-char-in-region (point) end-pos ?\r ?\n)
2268 (subst-char-in-region (point) end-pos ?\n ?\r)))
2269 (dired-next-subdir 1 t))
2270 (restore-buffer-modified-p modflag)))
2272 ;;;###autoload
2273 (defun dired-hide-all (arg)
2274 "Hide all subdirectories, leaving only their header lines.
2275 If there is already something hidden, make everything visible again.
2276 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2277 (interactive "P")
2278 (dired-hide-check)
2279 (let ((modflag (buffer-modified-p))
2280 buffer-read-only)
2281 (if (save-excursion
2282 (goto-char (point-min))
2283 (search-forward "\r" nil t))
2284 ;; unhide - bombs on \r in filenames
2285 (subst-char-in-region (point-min) (point-max) ?\r ?\n)
2286 ;; hide
2287 (let ((pos (point-max)) ; pos of end of last directory
2288 (alist dired-subdir-alist))
2289 (while alist ; while there are dirs before pos
2290 (subst-char-in-region (dired-get-subdir-min (car alist)) ; pos of prev dir
2291 (save-excursion
2292 (goto-char pos) ; current dir
2293 ;; we're somewhere on current dir's line
2294 (forward-line -1)
2295 (point))
2296 ?\n ?\r)
2297 (setq pos (dired-get-subdir-min (car alist))) ; prev dir gets current dir
2298 (setq alist (cdr alist)))))
2299 (restore-buffer-modified-p modflag)))
2301 ;;;###end dired-ins.el
2304 ;; Search only in file names in the Dired buffer.
2306 (defcustom dired-isearch-filenames nil
2307 "*If non-nil, Isearch in Dired matches only file names."
2308 :type '(choice (const :tag "No restrictions" nil)
2309 (const :tag "Isearch only in file names" dired-filename))
2310 :group 'dired
2311 :version "23.1")
2313 (defvar dired-isearch-orig-success-function nil)
2315 (defun dired-isearch-filenames-toggle ()
2316 "Toggle file names searching on or off.
2317 When on, Isearch checks the success of the current matching point
2318 using the function `dired-isearch-success-function' that matches only
2319 at file names. When off, it uses the default function
2320 `isearch-success-function-default'."
2321 (interactive)
2322 (setq isearch-success-function
2323 (if (eq isearch-success-function 'dired-isearch-success-function)
2324 'isearch-success-function-default
2325 'dired-isearch-success-function))
2326 (setq isearch-success t isearch-adjusted t)
2327 (isearch-update))
2329 ;;;###autoload
2330 (defun dired-isearch-filenames-setup ()
2331 "Set up isearch to search in Dired file names.
2332 Intended to be added to `isearch-mode-hook'."
2333 (when dired-isearch-filenames
2334 (define-key isearch-mode-map "\M-sf" 'dired-isearch-filenames-toggle)
2335 (setq dired-isearch-orig-success-function
2336 (default-value 'isearch-success-function))
2337 (setq-default isearch-success-function 'dired-isearch-success-function)
2338 (add-hook 'isearch-mode-end-hook 'dired-isearch-filenames-end nil t)))
2340 (defun dired-isearch-filenames-end ()
2341 "Clean up the Dired file name search after terminating isearch."
2342 (define-key isearch-mode-map "\M-sf" nil)
2343 (setq-default isearch-success-function dired-isearch-orig-success-function)
2344 (remove-hook 'isearch-mode-end-hook 'dired-isearch-filenames-end t))
2346 (defun dired-isearch-success-function (beg end)
2347 "Match only at visible regions with the text property `dired-filename'."
2348 (and (isearch-success-function-default beg end)
2349 (if dired-isearch-filenames
2350 (text-property-not-all (min beg end) (max beg end)
2351 'dired-filename nil)
2352 t)))
2354 ;;;###autoload
2355 (defun dired-isearch-filenames ()
2356 "Search for a string using Isearch only in file names in the Dired buffer."
2357 (interactive)
2358 (let ((dired-isearch-filenames t)
2359 (isearch-message-prefix-add "filename "))
2360 (isearch-forward)))
2362 ;;;###autoload
2363 (defun dired-isearch-filenames-regexp ()
2364 "Search for a regexp using Isearch only in file names in the Dired buffer."
2365 (interactive)
2366 (let ((dired-isearch-filenames t)
2367 (isearch-message-prefix-add "filename "))
2368 (isearch-forward-regexp)))
2371 ;; Functions for searching in tags style among marked files.
2373 ;;;###autoload
2374 (defun dired-do-isearch ()
2375 "Search for a string through all marked files using Isearch."
2376 (interactive)
2377 (multi-isearch-files
2378 (dired-get-marked-files nil nil 'dired-nondirectory-p)))
2380 ;;;###autoload
2381 (defun dired-do-isearch-regexp ()
2382 "Search for a regexp through all marked files using Isearch."
2383 (interactive)
2384 (multi-isearch-files-regexp
2385 (dired-get-marked-files nil nil 'dired-nondirectory-p)))
2387 ;;;###autoload
2388 (defun dired-do-search (regexp)
2389 "Search through all marked files for a match for REGEXP.
2390 Stops when a match is found.
2391 To continue searching for next match, use command \\[tags-loop-continue]."
2392 (interactive "sSearch marked files (regexp): ")
2393 (tags-search regexp '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2395 ;;;###autoload
2396 (defun dired-do-query-replace-regexp (from to &optional delimited)
2397 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2398 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2399 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2400 with the command \\[tags-loop-continue]."
2401 (interactive
2402 (let ((common
2403 (query-replace-read-args
2404 "Query replace regexp in marked files" t t)))
2405 (list (nth 0 common) (nth 1 common) (nth 2 common))))
2406 (dolist (file (dired-get-marked-files nil nil 'dired-nondirectory-p))
2407 (let ((buffer (get-file-buffer file)))
2408 (if (and buffer (with-current-buffer buffer
2409 buffer-read-only))
2410 (error "File `%s' is visited read-only" file))))
2411 (tags-query-replace from to delimited
2412 '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2414 (defun dired-nondirectory-p (file)
2415 (not (file-directory-p file)))
2417 ;;;###autoload
2418 (defun dired-show-file-type (file &optional deref-symlinks)
2419 "Print the type of FILE, according to the `file' command.
2420 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2421 true then the type of the file linked to by FILE is printed instead."
2422 (interactive (list (dired-get-filename t) current-prefix-arg))
2423 (with-temp-buffer
2424 (if deref-symlinks
2425 (call-process "file" nil t t "-L" "--" file)
2426 (call-process "file" nil t t "--" file))
2427 (when (bolp)
2428 (backward-delete-char 1))
2429 (message "%s" (buffer-string))))
2431 (provide 'dired-aux)
2433 ;; arch-tag: 4b508de9-a153-423d-8d3f-a1bbd86f4f60
2434 ;;; dired-aux.el ends here