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[emacs.git] / lisp / dired-aux.el
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1 ;;; dired-aux.el --- less commonly used parts of dired
3 ;; Copyright (C) 1985-1986, 1992, 1994, 1998, 2000-2011
4 ;; Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
7 ;; Maintainer: FSF
8 ;; Keywords: files
9 ;; Package: emacs
11 ;; This file is part of GNU Emacs.
13 ;; GNU Emacs is free software: you can redistribute it and/or modify
14 ;; it under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation, either version 3 of the License, or
16 ;; (at your option) any later version.
18 ;; GNU Emacs is distributed in the hope that it will be useful,
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ;; GNU General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
26 ;;; Commentary:
28 ;; The parts of dired mode not normally used. This is a space-saving hack
29 ;; to avoid having to load a large mode when all that's wanted are a few
30 ;; functions.
32 ;; Rewritten in 1990/1991 to add tree features, file marking and
33 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
34 ;; Finished up by rms in 1992.
36 ;;; Code:
38 ;; We need macros in dired.el to compile properly,
39 ;; and we call subroutines in it too.
40 (require 'dired)
42 (defvar dired-create-files-failures nil
43 "Variable where `dired-create-files' records failing file names.
44 Functions that operate recursively can store additional names
45 into this list; they also should call `dired-log' to log the errors.")
47 ;;; 15K
48 ;;;###begin dired-cmd.el
49 ;; Diffing and compressing
51 (defconst dired-star-subst-regexp "\\(^\\|[ \t]\\)\\*\\([ \t]\\|$\\)")
52 (defconst dired-quark-subst-regexp "\\(^\\|[ \t]\\)\\?\\([ \t]\\|$\\)")
54 ;;;###autoload
55 (defun dired-diff (file &optional switches)
56 "Compare file at point with file FILE using `diff'.
57 FILE defaults to the file at the mark. (That's the mark set by
58 \\[set-mark-command], not by Dired's \\[dired-mark] command.)
59 The prompted-for file is the first file given to `diff'.
60 With prefix arg, prompt for second argument SWITCHES,
61 which is options for `diff'."
62 (interactive
63 (let* ((current (dired-get-filename t))
64 ;; Get the file at the mark.
65 (file-at-mark (if (mark t)
66 (save-excursion (goto-char (mark t))
67 (dired-get-filename t t))))
68 ;; Use it as default if it's not the same as the current file,
69 ;; and the target dir is the current dir or the mark is active.
70 (default (if (and (not (equal file-at-mark current))
71 (or (equal (dired-dwim-target-directory)
72 (dired-current-directory))
73 mark-active))
74 file-at-mark))
75 (target-dir (if default
76 (dired-current-directory)
77 (dired-dwim-target-directory)))
78 (defaults (dired-dwim-target-defaults (list current) target-dir)))
79 (require 'diff)
80 (list
81 (minibuffer-with-setup-hook
82 (lambda ()
83 (set (make-local-variable 'minibuffer-default-add-function) nil)
84 (setq minibuffer-default defaults))
85 (read-file-name
86 (format "Diff %s with%s: " current
87 (if default (format " (default %s)" default) ""))
88 target-dir default t))
89 (if current-prefix-arg
90 (read-string "Options for diff: "
91 (if (stringp diff-switches)
92 diff-switches
93 (mapconcat 'identity diff-switches " ")))))))
94 (let ((current (dired-get-filename t)))
95 (when (or (equal (expand-file-name file)
96 (expand-file-name current))
97 (and (file-directory-p file)
98 (equal (expand-file-name current file)
99 (expand-file-name current))))
100 (error "Attempt to compare the file to itself"))
101 (diff file current switches)))
103 ;;;###autoload
104 (defun dired-backup-diff (&optional switches)
105 "Diff this file with its backup file or vice versa.
106 Uses the latest backup, if there are several numerical backups.
107 If this file is a backup, diff it with its original.
108 The backup file is the first file given to `diff'.
109 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
110 (interactive
111 (if current-prefix-arg
112 (list (read-string "Options for diff: "
113 (if (stringp diff-switches)
114 diff-switches
115 (mapconcat 'identity diff-switches " "))))
116 nil))
117 (diff-backup (dired-get-filename) switches))
119 ;;;###autoload
120 (defun dired-compare-directories (dir2 predicate)
121 "Mark files with different file attributes in two dired buffers.
122 Compare file attributes of files in the current directory
123 with file attributes in directory DIR2 using PREDICATE on pairs of files
124 with the same name. Mark files for which PREDICATE returns non-nil.
125 Mark files with different names if PREDICATE is nil (or interactively
126 with empty input at the predicate prompt).
128 PREDICATE is a Lisp expression that can refer to the following variables:
130 size1, size2 - file size in bytes
131 mtime1, mtime2 - last modification time in seconds, as a float
132 fa1, fa2 - list of file attributes
133 returned by function `file-attributes'
135 where 1 refers to attribute of file in the current dired buffer
136 and 2 to attribute of file in second dired buffer.
138 Examples of PREDICATE:
140 (> mtime1 mtime2) - mark newer files
141 (not (= size1 size2)) - mark files with different sizes
142 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
143 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
144 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
145 (interactive
146 (list
147 (let* ((target-dir (dired-dwim-target-directory))
148 (defaults (dired-dwim-target-defaults nil target-dir)))
149 (minibuffer-with-setup-hook
150 (lambda ()
151 (set (make-local-variable 'minibuffer-default-add-function) nil)
152 (setq minibuffer-default defaults))
153 (read-directory-name (format "Compare %s with: "
154 (dired-current-directory))
155 target-dir target-dir t)))
156 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil "nil")))
157 (let* ((dir1 (dired-current-directory))
158 (file-alist1 (dired-files-attributes dir1))
159 (file-alist2 (dired-files-attributes dir2))
160 file-list1 file-list2)
161 (setq file-alist1 (delq (assoc "." file-alist1) file-alist1))
162 (setq file-alist1 (delq (assoc ".." file-alist1) file-alist1))
163 (setq file-alist2 (delq (assoc "." file-alist2) file-alist2))
164 (setq file-alist2 (delq (assoc ".." file-alist2) file-alist2))
165 (setq file-list1 (mapcar
166 'cadr
167 (dired-file-set-difference
168 file-alist1 file-alist2
169 predicate))
170 file-list2 (mapcar
171 'cadr
172 (dired-file-set-difference
173 file-alist2 file-alist1
174 predicate)))
175 (dired-fun-in-all-buffers
176 dir1 nil
177 (lambda ()
178 (dired-mark-if
179 (member (dired-get-filename nil t) file-list1) nil)))
180 (dired-fun-in-all-buffers
181 dir2 nil
182 (lambda ()
183 (dired-mark-if
184 (member (dired-get-filename nil t) file-list2) nil)))
185 (message "Marked in dir1: %s files, in dir2: %s files"
186 (length file-list1)
187 (length file-list2))))
189 (defun dired-file-set-difference (list1 list2 predicate)
190 "Combine LIST1 and LIST2 using a set-difference operation.
191 The result list contains all file items that appear in LIST1 but not LIST2.
192 This is a non-destructive function; it makes a copy of the data if necessary
193 to avoid corrupting the original LIST1 and LIST2.
194 PREDICATE (see `dired-compare-directories') is an additional match
195 condition. Two file items are considered to match if they are equal
196 *and* PREDICATE evaluates to t."
197 (if (or (null list1) (null list2))
198 list1
199 (let (res)
200 (dolist (file1 list1)
201 (unless (let ((list list2))
202 (while (and list
203 (not (let* ((file2 (car list))
204 (fa1 (car (cddr file1)))
205 (fa2 (car (cddr file2)))
206 (size1 (nth 7 fa1))
207 (size2 (nth 7 fa2))
208 (mtime1 (float-time (nth 5 fa1)))
209 (mtime2 (float-time (nth 5 fa2))))
210 (and
211 (equal (car file1) (car file2))
212 (not (eval predicate))))))
213 (setq list (cdr list)))
214 list)
215 (setq res (cons file1 res))))
216 (nreverse res))))
218 (defun dired-files-attributes (dir)
219 "Return a list of all file names and attributes from DIR.
220 List has a form of (file-name full-file-name (attribute-list))."
221 (mapcar
222 (lambda (file-name)
223 (let ((full-file-name (expand-file-name file-name dir)))
224 (list file-name
225 full-file-name
226 (file-attributes full-file-name))))
227 (directory-files dir)))
230 (defun dired-touch-initial (files)
231 "Create initial input value for `touch' command."
232 (let (initial)
233 (while files
234 (let ((current (nth 5 (file-attributes (car files)))))
235 (if (and initial (not (equal initial current)))
236 (setq initial (current-time) files nil)
237 (setq initial current))
238 (setq files (cdr files))))
239 (format-time-string "%Y%m%d%H%M.%S" initial)))
241 (defun dired-do-chxxx (attribute-name program op-symbol arg)
242 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
243 ;; refresh their file lines.
244 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
245 ;; PROGRAM is the program used to change the attribute.
246 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
247 ;; ARG describes which files to use, as in dired-get-marked-files.
248 (let* ((files (dired-get-marked-files t arg))
249 (new-attribute
250 (dired-mark-read-string
251 (concat "Change " attribute-name " of %s to: ")
252 (if (eq op-symbol 'touch) (dired-touch-initial files))
253 op-symbol arg files))
254 (operation (concat program " " new-attribute))
255 failures)
256 (setq failures
257 (dired-bunch-files 10000
258 (function dired-check-process)
259 (append
260 (list operation program)
261 (if (eq op-symbol 'touch)
262 '("-t") nil)
263 (list new-attribute)
264 (if (string-match "gnu" system-configuration)
265 '("--") nil))
266 files))
267 (dired-do-redisplay arg);; moves point if ARG is an integer
268 (if failures
269 (dired-log-summary
270 (format "%s: error" operation)
271 nil))))
273 ;;;###autoload
274 (defun dired-do-chmod (&optional arg)
275 "Change the mode of the marked (or next ARG) files.
276 Symbolic modes like `g+w' are allowed."
277 (interactive "P")
278 (let* ((files (dired-get-marked-files t arg))
279 (modestr (and (stringp (car files))
280 (nth 8 (file-attributes (car files)))))
281 (default
282 (and (stringp modestr)
283 (string-match "^.\\(...\\)\\(...\\)\\(...\\)$" modestr)
284 (replace-regexp-in-string
285 "-" ""
286 (format "u=%s,g=%s,o=%s"
287 (match-string 1 modestr)
288 (match-string 2 modestr)
289 (match-string 3 modestr)))))
290 (modes (dired-mark-read-string
291 "Change mode of %s to: " nil
292 'chmod arg files default))
293 (num-modes (if (string-match "^[0-7]+" modes)
294 (string-to-number modes 8))))
295 (dolist (file files)
296 (set-file-modes
297 file
298 (if num-modes num-modes
299 (file-modes-symbolic-to-number modes (file-modes file)))))
300 (dired-do-redisplay arg)))
302 ;;;###autoload
303 (defun dired-do-chgrp (&optional arg)
304 "Change the group of the marked (or next ARG) files."
305 (interactive "P")
306 (if (memq system-type '(ms-dos windows-nt))
307 (error "chgrp not supported on this system"))
308 (dired-do-chxxx "Group" "chgrp" 'chgrp arg))
310 ;;;###autoload
311 (defun dired-do-chown (&optional arg)
312 "Change the owner of the marked (or next ARG) files."
313 (interactive "P")
314 (if (memq system-type '(ms-dos windows-nt))
315 (error "chown not supported on this system"))
316 (dired-do-chxxx "Owner" dired-chown-program 'chown arg))
318 ;;;###autoload
319 (defun dired-do-touch (&optional arg)
320 "Change the timestamp of the marked (or next ARG) files.
321 This calls touch."
322 (interactive "P")
323 (dired-do-chxxx "Timestamp" dired-touch-program 'touch arg))
325 ;; Process all the files in FILES in batches of a convenient size,
326 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
327 ;; Batches are chosen to need less than MAX chars for the file names,
328 ;; allowing 3 extra characters of separator per file name.
329 (defun dired-bunch-files (max function args files)
330 (let (pending
331 past
332 (pending-length 0)
333 failures)
334 ;; Accumulate files as long as they fit in MAX chars,
335 ;; then process the ones accumulated so far.
336 (while files
337 (let* ((thisfile (car files))
338 (thislength (+ (length thisfile) 3))
339 (rest (cdr files)))
340 ;; If we have at least 1 pending file
341 ;; and this file won't fit in the length limit, process now.
342 (if (and pending (> (+ thislength pending-length) max))
343 (setq pending (nreverse pending)
344 ;; The elements of PENDING are now in forward order.
345 ;; Do the operation and record failures.
346 failures (nconc (apply function (append args pending))
347 failures)
348 ;; Transfer the elemens of PENDING onto PAST
349 ;; and clear it out. Now PAST contains the first N files
350 ;; specified (for some N), and FILES contains the rest.
351 past (nconc past pending)
352 pending nil
353 pending-length 0))
354 ;; Do (setq pending (cons thisfile pending))
355 ;; but reuse the cons that was in `files'.
356 (setcdr files pending)
357 (setq pending files)
358 (setq pending-length (+ thislength pending-length))
359 (setq files rest)))
360 (setq pending (nreverse pending))
361 (prog1
362 (nconc (apply function (append args pending))
363 failures)
364 ;; Now the original list FILES has been put back as it was.
365 (nconc past pending))))
367 ;;;###autoload
368 (defun dired-do-print (&optional arg)
369 "Print the marked (or next ARG) files.
370 Uses the shell command coming from variables `lpr-command' and
371 `lpr-switches' as default."
372 (interactive "P")
373 (let* ((file-list (dired-get-marked-files t arg))
374 (command (dired-mark-read-string
375 "Print %s with: "
376 (mapconcat 'identity
377 (cons lpr-command
378 (if (stringp lpr-switches)
379 (list lpr-switches)
380 lpr-switches))
381 " ")
382 'print arg file-list)))
383 (dired-run-shell-command (dired-shell-stuff-it command file-list nil))))
385 ;; Read arguments for a marked-files command that wants a string
386 ;; that is not a file name,
387 ;; perhaps popping up the list of marked files.
388 ;; ARG is the prefix arg and indicates whether the files came from
389 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
390 ;; If the current file was used, the list has but one element and ARG
391 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
393 (defun dired-mark-read-string (prompt initial op-symbol arg files &optional default)
394 ;; PROMPT for a string, with INITIAL input and DEFAULT value.
395 ;; Other args are used to give user feedback and pop-up:
396 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
397 (dired-mark-pop-up
398 nil op-symbol files
399 (function read-string)
400 (format prompt (dired-mark-prompt arg files)) initial nil default))
402 ;;; Cleaning a directory: flagging some backups for deletion.
404 (defvar dired-file-version-alist)
406 ;;;###autoload
407 (defun dired-clean-directory (keep)
408 "Flag numerical backups for deletion.
409 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
410 Positive prefix arg KEEP overrides `dired-kept-versions';
411 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
413 To clear the flags on these files, you can use \\[dired-flag-backup-files]
414 with a prefix argument."
415 (interactive "P")
416 (setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
417 (let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
418 (late-retention (if (<= keep 0) dired-kept-versions keep))
419 (dired-file-version-alist ()))
420 (message "Cleaning numerical backups (keeping %d late, %d old)..."
421 late-retention early-retention)
422 ;; Look at each file.
423 ;; If the file has numeric backup versions,
424 ;; put on dired-file-version-alist an element of the form
425 ;; (FILENAME . VERSION-NUMBER-LIST)
426 (dired-map-dired-file-lines (function dired-collect-file-versions))
427 ;; Sort each VERSION-NUMBER-LIST,
428 ;; and remove the versions not to be deleted.
429 (let ((fval dired-file-version-alist))
430 (while fval
431 (let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
432 (v-count (length sorted-v-list)))
433 (if (> v-count (+ early-retention late-retention))
434 (rplacd (nthcdr early-retention sorted-v-list)
435 (nthcdr (- v-count late-retention)
436 sorted-v-list)))
437 (rplacd (car fval)
438 (cdr sorted-v-list)))
439 (setq fval (cdr fval))))
440 ;; Look at each file. If it is a numeric backup file,
441 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
442 (dired-map-dired-file-lines (function dired-trample-file-versions))
443 (message "Cleaning numerical backups...done")))
445 ;;; Subroutines of dired-clean-directory.
447 (defun dired-map-dired-file-lines (fun)
448 ;; Perform FUN with point at the end of each non-directory line.
449 ;; FUN takes one argument, the absolute filename.
450 (save-excursion
451 (let (file buffer-read-only)
452 (goto-char (point-min))
453 (while (not (eobp))
454 (save-excursion
455 (and (not (looking-at dired-re-dir))
456 (not (eolp))
457 (setq file (dired-get-filename nil t)) ; nil on non-file
458 (progn (end-of-line)
459 (funcall fun file))))
460 (forward-line 1)))))
462 (defun dired-collect-file-versions (fn)
463 (let ((fn (file-name-sans-versions fn)))
464 ;; Only do work if this file is not already in the alist.
465 (if (assoc fn dired-file-version-alist)
467 ;; If it looks like file FN has versions, return a list of the versions.
468 ;;That is a list of strings which are file names.
469 ;;The caller may want to flag some of these files for deletion.
470 (let* ((base-versions
471 (concat (file-name-nondirectory fn) ".~"))
472 (backup-extract-version-start (length base-versions))
473 (possibilities (file-name-all-completions
474 base-versions
475 (file-name-directory fn)))
476 (versions (mapcar 'backup-extract-version possibilities)))
477 (if versions
478 (setq dired-file-version-alist
479 (cons (cons fn versions)
480 dired-file-version-alist)))))))
482 (defun dired-trample-file-versions (fn)
483 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
484 base-version-list)
485 (and start-vn
486 (setq base-version-list ; there was a base version to which
487 (assoc (substring fn 0 start-vn) ; this looks like a
488 dired-file-version-alist)) ; subversion
489 (not (memq (string-to-number (substring fn (+ 2 start-vn)))
490 base-version-list)) ; this one doesn't make the cut
491 (progn (beginning-of-line)
492 (delete-char 1)
493 (insert dired-del-marker)))))
495 ;;; Shell commands
497 (declare-function mailcap-file-default-commands "mailcap" (files))
499 (defun minibuffer-default-add-dired-shell-commands ()
500 "Return a list of all commands associated with current dired files.
501 This function is used to add all related commands retrieved by `mailcap'
502 to the end of the list of defaults just after the default value."
503 (interactive)
504 (let ((commands (and (boundp 'files) (require 'mailcap nil t)
505 (mailcap-file-default-commands files))))
506 (if (listp minibuffer-default)
507 (append minibuffer-default commands)
508 (cons minibuffer-default commands))))
510 ;; This is an extra function so that you can redefine it, e.g., to use gmhist.
511 (defun dired-read-shell-command (prompt arg files)
512 "Read a dired shell command prompting with PROMPT.
513 Passes the prefix argument ARG to `dired-mark-prompt', so that it
514 can be used in the prompt to indicate which FILES are affected.
515 Normally reads the command with `read-shell-command', but if the
516 `dired-x' packages is loaded, uses `dired-guess-shell-command' to offer
517 a smarter default choice of shell command."
518 (minibuffer-with-setup-hook
519 (lambda ()
520 (set (make-local-variable 'minibuffer-default-add-function)
521 'minibuffer-default-add-dired-shell-commands))
522 (setq prompt (format prompt (dired-mark-prompt arg files)))
523 (if (featurep 'dired-x)
524 (dired-mark-pop-up nil 'shell files
525 #'dired-guess-shell-command prompt files)
526 (dired-mark-pop-up nil 'shell files
527 #'read-shell-command prompt nil nil))))
529 ;;;###autoload
530 (defun dired-do-async-shell-command (command &optional arg file-list)
531 "Run a shell command COMMAND on the marked files asynchronously.
533 Like `dired-do-shell-command' but if COMMAND doesn't end in ampersand,
534 adds `* &' surrounded by whitespace and executes the command asynchronously.
535 The output appears in the buffer `*Async Shell Command*'."
536 (interactive
537 (let ((files (dired-get-marked-files t current-prefix-arg)))
538 (list
539 ;; Want to give feedback whether this file or marked files are used:
540 (dired-read-shell-command "& on %s: " current-prefix-arg files)
541 current-prefix-arg
542 files)))
543 (unless (string-match "[*?][ \t]*\\'" command)
544 (setq command (concat command " *")))
545 (unless (string-match "&[ \t]*\\'" command)
546 (setq command (concat command " &")))
547 (dired-do-shell-command command arg file-list))
549 ;; The in-background argument is only needed in Emacs 18 where
550 ;; shell-command doesn't understand an appended ampersand `&'.
551 ;;;###autoload
552 (defun dired-do-shell-command (command &optional arg file-list)
553 "Run a shell command COMMAND on the marked files.
554 If no files are marked or a specific numeric prefix arg is given,
555 the next ARG files are used. Just \\[universal-argument] means the current file.
556 The prompt mentions the file(s) or the marker, as appropriate.
558 If there is a `*' in COMMAND, surrounded by whitespace, this runs
559 COMMAND just once with the entire file list substituted there.
561 If there is no `*', but there is a `?' in COMMAND, surrounded by
562 whitespace, this runs COMMAND on each file individually with the
563 file name substituted for `?'.
565 Otherwise, this runs COMMAND on each file individually with the
566 file name added at the end of COMMAND (separated by a space).
568 `*' and `?' when not surrounded by whitespace have no special
569 significance for `dired-do-shell-command', and are passed through
570 normally to the shell, but you must confirm first. To pass `*' by
571 itself to the shell as a wildcard, type `*\"\"'.
573 If COMMAND produces output, it goes to a separate buffer.
575 This feature does not try to redisplay Dired buffers afterward, as
576 there's no telling what files COMMAND may have changed.
577 Type \\[dired-do-redisplay] to redisplay the marked files.
579 When COMMAND runs, its working directory is the top-level directory
580 of the Dired buffer, so output files usually are created there
581 instead of in a subdir.
583 In a noninteractive call (from Lisp code), you must specify
584 the list of file names explicitly with the FILE-LIST argument, which
585 can be produced by `dired-get-marked-files', for example."
586 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
587 ;;actual work and can be redefined for customization.
588 (interactive
589 (let ((files (dired-get-marked-files t current-prefix-arg)))
590 (list
591 ;; Want to give feedback whether this file or marked files are used:
592 (dired-read-shell-command (concat "! on "
593 "%s: ")
594 current-prefix-arg
595 files)
596 current-prefix-arg
597 files)))
598 (let* ((on-each (not (string-match dired-star-subst-regexp command)))
599 (subst (not (string-match dired-quark-subst-regexp command)))
600 (star (not (string-match "\\*" command)))
601 (qmark (not (string-match "\\?" command))))
602 ;; Get confirmation for wildcards that may have been meant
603 ;; to control substitution of a file name or the file name list.
604 (if (cond ((not (or on-each subst))
605 (error "You can not combine `*' and `?' substitution marks"))
606 ((and star (not on-each))
607 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
608 ((and qmark (not subst))
609 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
610 (t))
611 (if on-each
612 (dired-bunch-files
613 (- 10000 (length command))
614 (function (lambda (&rest files)
615 (dired-run-shell-command
616 (dired-shell-stuff-it command files t arg))))
618 file-list)
619 ;; execute the shell command
620 (dired-run-shell-command
621 (dired-shell-stuff-it command file-list nil arg))))))
623 ;; Might use {,} for bash or csh:
624 (defvar dired-mark-prefix ""
625 "Prepended to marked files in dired shell commands.")
626 (defvar dired-mark-postfix ""
627 "Appended to marked files in dired shell commands.")
628 (defvar dired-mark-separator " "
629 "Separates marked files in dired shell commands.")
631 (defun dired-shell-stuff-it (command file-list on-each &optional raw-arg)
632 ;; "Make up a shell command line from COMMAND and FILE-LIST.
633 ;; If ON-EACH is t, COMMAND should be applied to each file, else
634 ;; simply concat all files and apply COMMAND to this.
635 ;; FILE-LIST's elements will be quoted for the shell."
636 ;; Might be redefined for smarter things and could then use RAW-ARG
637 ;; (coming from interactive P and currently ignored) to decide what to do.
638 ;; Smart would be a way to access basename or extension of file names.
639 (let ((stuff-it
640 (if (or (string-match dired-star-subst-regexp command)
641 (string-match dired-quark-subst-regexp command))
642 (lambda (x)
643 (let ((retval command))
644 (while (string-match
645 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
646 (setq retval (replace-match x t t retval 2)))
647 retval))
648 (lambda (x) (concat command dired-mark-separator x)))))
649 (if on-each
650 (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
651 (let ((files (mapconcat 'shell-quote-argument
652 file-list dired-mark-separator)))
653 (if (> (length file-list) 1)
654 (setq files (concat dired-mark-prefix files dired-mark-postfix)))
655 (funcall stuff-it files)))))
657 ;; This is an extra function so that it can be redefined by ange-ftp.
658 ;;;###autoload
659 (defun dired-run-shell-command (command)
660 (let ((handler
661 (find-file-name-handler (directory-file-name default-directory)
662 'shell-command)))
663 (if handler (apply handler 'shell-command (list command))
664 (shell-command command)))
665 ;; Return nil for sake of nconc in dired-bunch-files.
666 nil)
669 (defun dired-check-process (msg program &rest arguments)
670 ; "Display MSG while running PROGRAM, and check for output.
671 ;Remaining arguments are strings passed as command arguments to PROGRAM.
672 ; On error, insert output
673 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
674 ; Caller can cons up a list of failed args.
675 ;Else returns nil for success."
676 (let (err-buffer err (dir default-directory))
677 (message "%s..." msg)
678 (save-excursion
679 ;; Get a clean buffer for error output:
680 (setq err-buffer (get-buffer-create " *dired-check-process output*"))
681 (set-buffer err-buffer)
682 (erase-buffer)
683 (setq default-directory dir ; caller's default-directory
684 err (not (eq 0 (apply 'process-file program nil t nil arguments))))
685 (if err
686 (progn
687 (dired-log (concat program " " (prin1-to-string arguments) "\n"))
688 (dired-log err-buffer)
689 (or arguments program t))
690 (kill-buffer err-buffer)
691 (message "%s...done" msg)
692 nil))))
694 ;; Commands that delete or redisplay part of the dired buffer.
696 (defun dired-kill-line (&optional arg)
697 (interactive "P")
698 (setq arg (prefix-numeric-value arg))
699 (let (buffer-read-only file)
700 (while (/= 0 arg)
701 (setq file (dired-get-filename nil t))
702 (if (not file)
703 (error "Can only kill file lines")
704 (save-excursion (and file
705 (dired-goto-subdir file)
706 (dired-kill-subdir)))
707 (delete-region (line-beginning-position)
708 (progn (forward-line 1) (point)))
709 (if (> arg 0)
710 (setq arg (1- arg))
711 (setq arg (1+ arg))
712 (forward-line -1))))
713 (dired-move-to-filename)))
715 ;;;###autoload
716 (defun dired-do-kill-lines (&optional arg fmt)
717 "Kill all marked lines (not the files).
718 With a prefix argument, kill that many lines starting with the current line.
719 \(A negative argument kills backward.)
720 If you use this command with a prefix argument to kill the line
721 for a file that is a directory, which you have inserted in the
722 Dired buffer as a subdirectory, then it deletes that subdirectory
723 from the buffer as well.
724 To kill an entire subdirectory \(without killing its line in the
725 parent directory), go to its directory header line and use this
726 command with a prefix argument (the value does not matter)."
727 ;; Returns count of killed lines. FMT="" suppresses message.
728 (interactive "P")
729 (if arg
730 (if (dired-get-subdir)
731 (dired-kill-subdir)
732 (dired-kill-line arg))
733 (save-excursion
734 (goto-char (point-min))
735 (let (buffer-read-only
736 (count 0)
737 (regexp (dired-marker-regexp)))
738 (while (and (not (eobp))
739 (re-search-forward regexp nil t))
740 (setq count (1+ count))
741 (delete-region (line-beginning-position)
742 (progn (forward-line 1) (point))))
743 (or (equal "" fmt)
744 (message (or fmt "Killed %d line%s.") count (dired-plural-s count)))
745 count))))
747 ;;;###end dired-cmd.el
749 ;;; 30K
750 ;;;###begin dired-cp.el
752 (defun dired-compress ()
753 ;; Compress or uncompress the current file.
754 ;; Return nil for success, offending filename else.
755 (let* (buffer-read-only
756 (from-file (dired-get-filename))
757 (new-file (dired-compress-file from-file)))
758 (if new-file
759 (let ((start (point)))
760 ;; Remove any preexisting entry for the name NEW-FILE.
761 (condition-case nil
762 (dired-remove-entry new-file)
763 (error nil))
764 (goto-char start)
765 ;; Now replace the current line with an entry for NEW-FILE.
766 (dired-update-file-line new-file) nil)
767 (dired-log (concat "Failed to compress" from-file))
768 from-file)))
770 (defvar dired-compress-file-suffixes
771 '(("\\.gz\\'" "" "gunzip")
772 ("\\.tgz\\'" ".tar" "gunzip")
773 ("\\.Z\\'" "" "uncompress")
774 ;; For .z, try gunzip. It might be an old gzip file,
775 ;; or it might be from compact? pack? (which?) but gunzip handles both.
776 ("\\.z\\'" "" "gunzip")
777 ("\\.dz\\'" "" "dictunzip")
778 ("\\.tbz\\'" ".tar" "bunzip2")
779 ("\\.bz2\\'" "" "bunzip2")
780 ("\\.xz\\'" "" "unxz")
781 ;; This item controls naming for compression.
782 ("\\.tar\\'" ".tgz" nil))
783 "Control changes in file name suffixes for compression and uncompression.
784 Each element specifies one transformation rule, and has the form:
785 (REGEXP NEW-SUFFIX PROGRAM)
786 The rule applies when the old file name matches REGEXP.
787 The new file name is computed by deleting the part that matches REGEXP
788 (as well as anything after that), then adding NEW-SUFFIX in its place.
789 If PROGRAM is non-nil, the rule is an uncompression rule,
790 and uncompression is done by running PROGRAM.
791 Otherwise, the rule is a compression rule, and compression is done with gzip.")
793 ;;;###autoload
794 (defun dired-compress-file (file)
795 ;; Compress or uncompress FILE.
796 ;; Return the name of the compressed or uncompressed file.
797 ;; Return nil if no change in files.
798 (let ((handler (find-file-name-handler file 'dired-compress-file))
799 suffix newname
800 (suffixes dired-compress-file-suffixes))
801 ;; See if any suffix rule matches this file name.
802 (while suffixes
803 (let (case-fold-search)
804 (if (string-match (car (car suffixes)) file)
805 (setq suffix (car suffixes) suffixes nil))
806 (setq suffixes (cdr suffixes))))
807 ;; If so, compute desired new name.
808 (if suffix
809 (setq newname (concat (substring file 0 (match-beginning 0))
810 (nth 1 suffix))))
811 (cond (handler
812 (funcall handler 'dired-compress-file file))
813 ((file-symlink-p file)
814 nil)
815 ((and suffix (nth 2 suffix))
816 ;; We found an uncompression rule.
817 (if (not (dired-check-process (concat "Uncompressing " file)
818 (nth 2 suffix) file))
819 newname))
821 ;;; We don't recognize the file as compressed, so compress it.
822 ;;; Try gzip; if we don't have that, use compress.
823 (condition-case nil
824 (let ((out-name (concat file ".gz")))
825 (and (or (not (file-exists-p out-name))
826 (y-or-n-p
827 (format "File %s already exists. Really compress? "
828 out-name)))
829 (not (dired-check-process (concat "Compressing " file)
830 "gzip" "-f" file))
831 (or (file-exists-p out-name)
832 (setq out-name (concat file ".z")))
833 ;; Rename the compressed file to NEWNAME
834 ;; if it hasn't got that name already.
835 (if (and newname (not (equal newname out-name)))
836 (progn
837 (rename-file out-name newname t)
838 newname)
839 out-name)))
840 (file-error
841 (if (not (dired-check-process (concat "Compressing " file)
842 "compress" "-f" file))
843 ;; Don't use NEWNAME with `compress'.
844 (concat file ".Z"))))))))
846 (defun dired-mark-confirm (op-symbol arg)
847 ;; Request confirmation from the user that the operation described
848 ;; by OP-SYMBOL is to be performed on the marked files.
849 ;; Confirmation consists in a y-or-n question with a file list
850 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
851 ;; The files used are determined by ARG (as in dired-get-marked-files).
852 (or (eq dired-no-confirm t)
853 (memq op-symbol dired-no-confirm)
854 ;; Pass t for DISTINGUISH-ONE-MARKED so that a single file which
855 ;; is marked pops up a window. That will help the user see
856 ;; it isn't the current line file.
857 (let ((files (dired-get-marked-files t arg nil t))
858 (string (if (eq op-symbol 'compress) "Compress or uncompress"
859 (capitalize (symbol-name op-symbol)))))
860 (dired-mark-pop-up nil op-symbol files (function y-or-n-p)
861 (concat string " "
862 (dired-mark-prompt arg files) "? ")))))
864 (defun dired-map-over-marks-check (fun arg op-symbol &optional show-progress)
865 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
866 ; and display failures.
868 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
869 ; the short form of the filename) for a failure and probably logs a
870 ; detailed error explanation using function `dired-log'.
872 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
873 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
874 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
875 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
877 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
878 (if (dired-mark-confirm op-symbol arg)
879 (let* ((total-list;; all of FUN's return values
880 (dired-map-over-marks (funcall fun) arg show-progress))
881 (total (length total-list))
882 (failures (delq nil total-list))
883 (count (length failures))
884 (string (if (eq op-symbol 'compress) "Compress or uncompress"
885 (capitalize (symbol-name op-symbol)))))
886 (if (not failures)
887 (message "%s: %d file%s."
888 string total (dired-plural-s total))
889 ;; end this bunch of errors:
890 (dired-log-summary
891 (format "Failed to %s %d of %d file%s"
892 (downcase string) count total (dired-plural-s total))
893 failures)))))
895 ;;;###autoload
896 (defun dired-query (sym prompt &rest args)
897 "Format PROMPT with ARGS, query user, and store the result in SYM.
898 The return value is either nil or t.
900 The user may type y or SPC to accept once; n or DEL to skip once;
901 ! to accept this and subsequent queries; or q or ESC to decline
902 this and subsequent queries.
904 If SYM is already bound to a non-nil value, this function may
905 return automatically without querying the user. If SYM is !,
906 return t; if SYM is q or ESC, return nil."
907 (let* ((char (symbol-value sym))
908 (char-choices '(?y ?\s ?n ?\177 ?! ?q ?\e)))
909 (cond ((eq char ?!)
910 t) ; accept, and don't ask again
911 ((memq char '(?q ?\e))
912 nil) ; skip, and don't ask again
913 (t ; no previous answer - ask now
914 (setq prompt
915 (concat (apply 'format prompt args)
916 (if help-form
917 (format " [Type yn!q or %s] "
918 (key-description
919 (char-to-string help-char)))
920 " [Type y, n, q or !] ")))
921 (set sym (setq char (read-char-choice prompt char-choices)))
922 (if (memq char '(?y ?\s ?!)) t)))))
925 ;;;###autoload
926 (defun dired-do-compress (&optional arg)
927 "Compress or uncompress marked (or next ARG) files."
928 (interactive "P")
929 (dired-map-over-marks-check (function dired-compress) arg 'compress t))
931 ;; Commands for Emacs Lisp files - load and byte compile
933 (defun dired-byte-compile ()
934 ;; Return nil for success, offending file name else.
935 (let* ((filename (dired-get-filename))
936 elc-file buffer-read-only failure)
937 (condition-case err
938 (save-excursion (byte-compile-file filename))
939 (error
940 (setq failure err)))
941 (setq elc-file (byte-compile-dest-file filename))
942 (or (file-exists-p elc-file)
943 (setq failure t))
944 (if failure
945 (progn
946 (dired-log "Byte compile error for %s:\n%s\n" filename failure)
947 (dired-make-relative filename))
948 (dired-remove-file elc-file)
949 (forward-line) ; insert .elc after its .el file
950 (dired-add-file elc-file)
951 nil)))
953 ;;;###autoload
954 (defun dired-do-byte-compile (&optional arg)
955 "Byte compile marked (or next ARG) Emacs Lisp files."
956 (interactive "P")
957 (dired-map-over-marks-check (function dired-byte-compile) arg 'byte-compile t))
959 (defun dired-load ()
960 ;; Return nil for success, offending file name else.
961 (let ((file (dired-get-filename)) failure)
962 (condition-case err
963 (load file nil nil t)
964 (error (setq failure err)))
965 (if (not failure)
967 (dired-log "Load error for %s:\n%s\n" file failure)
968 (dired-make-relative file))))
970 ;;;###autoload
971 (defun dired-do-load (&optional arg)
972 "Load the marked (or next ARG) Emacs Lisp files."
973 (interactive "P")
974 (dired-map-over-marks-check (function dired-load) arg 'load t))
976 ;;;###autoload
977 (defun dired-do-redisplay (&optional arg test-for-subdir)
978 "Redisplay all marked (or next ARG) files.
979 If on a subdir line, redisplay that subdirectory. In that case,
980 a prefix arg lets you edit the `ls' switches used for the new listing.
982 Dired remembers switches specified with a prefix arg, so that reverting
983 the buffer will not reset them. However, using `dired-undo' to re-insert
984 or delete subdirectories can bypass this machinery. Hence, you sometimes
985 may have to reset some subdirectory switches after a `dired-undo'.
986 You can reset all subdirectory switches to the default using
987 \\<dired-mode-map>\\[dired-reset-subdir-switches].
988 See Info node `(emacs)Subdir switches' for more details."
989 ;; Moves point if the next ARG files are redisplayed.
990 (interactive "P\np")
991 (if (and test-for-subdir (dired-get-subdir))
992 (let* ((dir (dired-get-subdir))
993 (switches (cdr (assoc-string dir dired-switches-alist))))
994 (dired-insert-subdir
996 (when arg
997 (read-string "Switches for listing: "
998 (or switches
999 dired-subdir-switches
1000 dired-actual-switches)))))
1001 (message "Redisplaying...")
1002 ;; message much faster than making dired-map-over-marks show progress
1003 (dired-uncache
1004 (if (consp dired-directory) (car dired-directory) dired-directory))
1005 (dired-map-over-marks (let ((fname (dired-get-filename))
1006 ;; Postphone readin hook till we map
1007 ;; over all marked files (Bug#6810).
1008 (dired-after-readin-hook nil))
1009 (message "Redisplaying... %s" fname)
1010 (dired-update-file-line fname))
1011 arg)
1012 (run-hooks 'dired-after-readin-hook)
1013 (dired-move-to-filename)
1014 (message "Redisplaying...done")))
1016 (defun dired-reset-subdir-switches ()
1017 "Set `dired-switches-alist' to nil and revert dired buffer."
1018 (interactive)
1019 (setq dired-switches-alist nil)
1020 (revert-buffer))
1022 (defun dired-update-file-line (file)
1023 ;; Delete the current line, and insert an entry for FILE.
1024 ;; If FILE is nil, then just delete the current line.
1025 ;; Keeps any marks that may be present in column one (doing this
1026 ;; here is faster than with dired-add-entry's optional arg).
1027 ;; Does not update other dired buffers. Use dired-relist-entry for that.
1028 (let* ((opoint (line-beginning-position))
1029 (char (char-after opoint))
1030 (buffer-read-only))
1031 (delete-region opoint (progn (forward-line 1) (point)))
1032 (if file
1033 (progn
1034 (dired-add-entry file nil t)
1035 ;; Replace space by old marker without moving point.
1036 ;; Faster than goto+insdel inside a save-excursion?
1037 (subst-char-in-region opoint (1+ opoint) ?\040 char))))
1038 (dired-move-to-filename))
1040 ;;;###autoload
1041 (defun dired-add-file (filename &optional marker-char)
1042 (dired-fun-in-all-buffers
1043 (file-name-directory filename) (file-name-nondirectory filename)
1044 (function dired-add-entry) filename marker-char))
1046 (defvar dired-omit-mode)
1047 (declare-function dired-omit-regexp "dired-x" ())
1048 (defvar dired-omit-localp)
1050 (defun dired-add-entry (filename &optional marker-char relative)
1051 "Add a new dired entry for FILENAME.
1052 Optionally mark it with MARKER-CHAR (a character, else uses
1053 `dired-marker-char'). Note that this adds the entry `out of order'
1054 if files are sorted by time, etc.
1055 Skips files that match `dired-trivial-filenames'.
1056 Exposes hidden subdirectories if a file is added there.
1058 If `dired-x' is loaded and `dired-omit-mode' is enabled, skips
1059 files matching `dired-omit-regexp'."
1060 (if (or (not (featurep 'dired-x))
1061 (not dired-omit-mode)
1062 ;; Avoid calling ls for files that are going to be omitted anyway.
1063 (let ((omit-re (dired-omit-regexp)))
1064 (or (string= omit-re "")
1065 (not (string-match omit-re
1066 (cond
1067 ((eq 'no-dir dired-omit-localp)
1068 filename)
1069 ((eq t dired-omit-localp)
1070 (dired-make-relative filename))
1072 (dired-make-absolute
1073 filename
1074 (file-name-directory filename)))))))))
1075 ;; Do it!
1076 (progn
1077 (setq filename (directory-file-name filename))
1078 ;; Entry is always for files, even if they happen to also be directories
1079 (let* ((opoint (point))
1080 (cur-dir (dired-current-directory))
1081 (orig-file-name filename)
1082 (directory (if relative cur-dir (file-name-directory filename)))
1083 reason)
1084 (setq filename
1085 (if relative
1086 (file-relative-name filename directory)
1087 (file-name-nondirectory filename))
1088 reason
1089 (catch 'not-found
1090 (if (string= directory cur-dir)
1091 (progn
1092 (skip-chars-forward "^\r\n")
1093 (if (eq (following-char) ?\r)
1094 (dired-unhide-subdir))
1095 ;; We are already where we should be, except when
1096 ;; point is before the subdir line or its total line.
1097 (let ((p (dired-after-subdir-garbage cur-dir)))
1098 (if (< (point) p)
1099 (goto-char p))))
1100 ;; else try to find correct place to insert
1101 (if (dired-goto-subdir directory)
1102 (progn ;; unhide if necessary
1103 (if (looking-at "\r")
1104 ;; Point is at end of subdir line.
1105 (dired-unhide-subdir))
1106 ;; found - skip subdir and `total' line
1107 ;; and uninteresting files like . and ..
1108 ;; This better not move into the next subdir!
1109 (dired-goto-next-nontrivial-file))
1110 ;; not found
1111 (throw 'not-found "Subdir not found")))
1112 (let (buffer-read-only opoint)
1113 (beginning-of-line)
1114 (setq opoint (point))
1115 ;; Don't expand `.'.
1116 ;; Show just the file name within directory.
1117 (let ((default-directory directory))
1118 (dired-insert-directory
1119 directory
1120 (concat dired-actual-switches " -d")
1121 (list filename)))
1122 (goto-char opoint)
1123 ;; Put in desired marker char.
1124 (when marker-char
1125 (let ((dired-marker-char
1126 (if (integerp marker-char) marker-char
1127 dired-marker-char)))
1128 (dired-mark nil)))
1129 ;; Compensate for a bug in ange-ftp.
1130 ;; It inserts the file's absolute name, rather than
1131 ;; the relative one. That may be hard to fix since it
1132 ;; is probably controlled by something in ftp.
1133 (goto-char opoint)
1134 (let ((inserted-name (dired-get-filename 'verbatim)))
1135 (if (file-name-directory inserted-name)
1136 (let (props)
1137 (end-of-line)
1138 (forward-char (- (length inserted-name)))
1139 (setq props (text-properties-at (point)))
1140 (delete-char (length inserted-name))
1141 (let ((pt (point)))
1142 (insert filename)
1143 (set-text-properties pt (point) props))
1144 (forward-char 1))
1145 (forward-line 1)))
1146 (forward-line -1)
1147 (if dired-after-readin-hook
1148 ;; The subdir-alist is not affected...
1149 (save-excursion ; ...so we can run it right now:
1150 (save-restriction
1151 (beginning-of-line)
1152 (narrow-to-region (point)
1153 (line-beginning-position 2))
1154 (run-hooks 'dired-after-readin-hook))))
1155 (dired-move-to-filename))
1156 ;; return nil if all went well
1157 nil))
1158 (if reason ; don't move away on failure
1159 (goto-char opoint))
1160 (not reason))) ; return t on success, nil else
1161 ;; Don't do it (dired-omit-mode).
1162 ;; Return t for success (perhaps we should return file-exists-p).
1165 (defun dired-after-subdir-garbage (dir)
1166 ;; Return pos of first file line of DIR, skipping header and total
1167 ;; or wildcard lines.
1168 ;; Important: never moves into the next subdir.
1169 ;; DIR is assumed to be unhidden.
1170 (save-excursion
1171 (or (dired-goto-subdir dir) (error "This cannot happen"))
1172 (forward-line 1)
1173 (while (and (not (eolp)) ; don't cross subdir boundary
1174 (not (dired-move-to-filename)))
1175 (forward-line 1))
1176 (point)))
1178 ;;;###autoload
1179 (defun dired-remove-file (file)
1180 (dired-fun-in-all-buffers
1181 (file-name-directory file) (file-name-nondirectory file)
1182 (function dired-remove-entry) file))
1184 (defun dired-remove-entry (file)
1185 (save-excursion
1186 (and (dired-goto-file file)
1187 (let (buffer-read-only)
1188 (delete-region (progn (beginning-of-line) (point))
1189 (line-beginning-position 2))))))
1191 ;;;###autoload
1192 (defun dired-relist-file (file)
1193 "Create or update the line for FILE in all Dired buffers it would belong in."
1194 (dired-fun-in-all-buffers (file-name-directory file)
1195 (file-name-nondirectory file)
1196 (function dired-relist-entry) file))
1198 (defun dired-relist-entry (file)
1199 ;; Relist the line for FILE, or just add it if it did not exist.
1200 ;; FILE must be an absolute file name.
1201 (let (buffer-read-only marker)
1202 ;; If cursor is already on FILE's line delete-region will cause
1203 ;; save-excursion to fail because of floating makers,
1204 ;; moving point to beginning of line. Sigh.
1205 (save-excursion
1206 (and (dired-goto-file file)
1207 (delete-region (progn (beginning-of-line)
1208 (setq marker (following-char))
1209 (point))
1210 (line-beginning-position 2)))
1211 (setq file (directory-file-name file))
1212 (dired-add-entry file (if (eq ?\040 marker) nil marker)))))
1214 ;;; Copy, move/rename, making hard and symbolic links
1216 (defcustom dired-backup-overwrite nil
1217 "Non-nil if Dired should ask about making backups before overwriting files.
1218 Special value `always' suppresses confirmation."
1219 :type '(choice (const :tag "off" nil)
1220 (const :tag "suppress" always)
1221 (other :tag "ask" t))
1222 :group 'dired)
1224 ;; This is a fluid var used in dired-handle-overwrite. It should be
1225 ;; let-bound whenever dired-copy-file etc are called. See
1226 ;; dired-create-files for an example.
1227 (defvar dired-overwrite-confirmed)
1229 (defun dired-handle-overwrite (to)
1230 ;; Save old version of file TO that is to be overwritten.
1231 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1232 ;; from dired-create-files.
1233 (let (backup)
1234 (when (and dired-backup-overwrite
1235 dired-overwrite-confirmed
1236 (setq backup (car (find-backup-file-name to)))
1237 (or (eq 'always dired-backup-overwrite)
1238 (dired-query 'overwrite-backup-query
1239 "Make backup for existing file `%s'? "
1240 to)))
1241 (rename-file to backup 0) ; confirm overwrite of old backup
1242 (dired-relist-entry backup))))
1244 ;;;###autoload
1245 (defun dired-copy-file (from to ok-flag)
1246 (dired-handle-overwrite to)
1247 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1248 dired-recursive-copies))
1250 (declare-function make-symbolic-link "fileio.c")
1252 (defun dired-copy-file-recursive (from to ok-flag &optional
1253 preserve-time top recursive)
1254 (let ((attrs (file-attributes from))
1255 dirfailed)
1256 (if (and recursive
1257 (eq t (car attrs))
1258 (or (eq recursive 'always)
1259 (yes-or-no-p (format "Recursive copies of %s? " from))))
1260 ;; This is a directory.
1261 (copy-directory from to dired-copy-preserve-time)
1262 ;; Not a directory.
1263 (or top (dired-handle-overwrite to))
1264 (condition-case err
1265 (if (stringp (car attrs))
1266 ;; It is a symlink
1267 (make-symbolic-link (car attrs) to ok-flag)
1268 (copy-file from to ok-flag dired-copy-preserve-time))
1269 (file-date-error
1270 (push (dired-make-relative from)
1271 dired-create-files-failures)
1272 (dired-log "Can't set date on %s:\n%s\n" from err))))))
1274 ;;;###autoload
1275 (defun dired-rename-file (file newname ok-if-already-exists)
1276 (dired-handle-overwrite newname)
1277 (rename-file file newname ok-if-already-exists) ; error is caught in -create-files
1278 ;; Silently rename the visited file of any buffer visiting this file.
1279 (and (get-file-buffer file)
1280 (with-current-buffer (get-file-buffer file)
1281 (set-visited-file-name newname nil t)))
1282 (dired-remove-file file)
1283 ;; See if it's an inserted subdir, and rename that, too.
1284 (dired-rename-subdir file newname))
1286 (defun dired-rename-subdir (from-dir to-dir)
1287 (setq from-dir (file-name-as-directory from-dir)
1288 to-dir (file-name-as-directory to-dir))
1289 (dired-fun-in-all-buffers from-dir nil
1290 (function dired-rename-subdir-1) from-dir to-dir)
1291 ;; Update visited file name of all affected buffers
1292 (let ((expanded-from-dir (expand-file-name from-dir))
1293 (blist (buffer-list)))
1294 (while blist
1295 (with-current-buffer (car blist)
1296 (if (and buffer-file-name
1297 (dired-in-this-tree buffer-file-name expanded-from-dir))
1298 (let ((modflag (buffer-modified-p))
1299 (to-file (dired-replace-in-string
1300 (concat "^" (regexp-quote from-dir))
1301 to-dir
1302 buffer-file-name)))
1303 (set-visited-file-name to-file)
1304 (set-buffer-modified-p modflag))))
1305 (setq blist (cdr blist)))))
1307 (defun dired-rename-subdir-1 (dir to)
1308 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1309 ;; one of its subdirectories is expanded in this buffer.
1310 (let ((expanded-dir (expand-file-name dir))
1311 (alist dired-subdir-alist)
1312 (elt nil))
1313 (while alist
1314 (setq elt (car alist)
1315 alist (cdr alist))
1316 (if (dired-in-this-tree (car elt) expanded-dir)
1317 ;; ELT's subdir is affected by the rename
1318 (dired-rename-subdir-2 elt dir to)))
1319 (if (equal dir default-directory)
1320 ;; if top level directory was renamed, lots of things have to be
1321 ;; updated:
1322 (progn
1323 (dired-unadvertise dir) ; we no longer dired DIR...
1324 (setq default-directory to
1325 dired-directory (expand-file-name;; this is correct
1326 ;; with and without wildcards
1327 (file-name-nondirectory dired-directory)
1328 to))
1329 (let ((new-name (file-name-nondirectory
1330 (directory-file-name dired-directory))))
1331 ;; try to rename buffer, but just leave old name if new
1332 ;; name would already exist (don't try appending "<%d>")
1333 (or (get-buffer new-name)
1334 (rename-buffer new-name)))
1335 ;; ... we dired TO now:
1336 (dired-advertise)))))
1338 (defun dired-rename-subdir-2 (elt dir to)
1339 ;; Update the headerline and dired-subdir-alist element, as well as
1340 ;; dired-switches-alist element, of directory described by
1341 ;; alist-element ELT to reflect the moving of DIR to TO. Thus, ELT
1342 ;; describes either DIR itself or a subdir of DIR.
1343 (save-excursion
1344 (let ((regexp (regexp-quote (directory-file-name dir)))
1345 (newtext (directory-file-name to))
1346 buffer-read-only)
1347 (goto-char (dired-get-subdir-min elt))
1348 ;; Update subdir headerline in buffer
1349 (if (not (looking-at dired-subdir-regexp))
1350 (error "%s not found where expected - dired-subdir-alist broken?"
1351 dir)
1352 (goto-char (match-beginning 1))
1353 (if (re-search-forward regexp (match-end 1) t)
1354 (replace-match newtext t t)
1355 (error "Expected to find `%s' in headerline of %s" dir (car elt))))
1356 ;; Update buffer-local dired-subdir-alist and dired-switches-alist
1357 (let ((cons (assoc-string (car elt) dired-switches-alist))
1358 (cur-dir (dired-normalize-subdir
1359 (dired-replace-in-string regexp newtext (car elt)))))
1360 (setcar elt cur-dir)
1361 (when cons (setcar cons cur-dir))))))
1363 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1364 (defun dired-create-files (file-creator operation fn-list name-constructor
1365 &optional marker-char)
1367 ;; Create a new file for each from a list of existing files. The user
1368 ;; is queried, dired buffers are updated, and at the end a success or
1369 ;; failure message is displayed
1371 ;; FILE-CREATOR must accept three args: oldfile newfile ok-if-already-exists
1373 ;; It is called for each file and must create newfile, the entry of
1374 ;; which will be added. The user will be queried if the file already
1375 ;; exists. If oldfile is removed by FILE-CREATOR (i.e, it is a
1376 ;; rename), it is FILE-CREATOR's responsibility to update dired
1377 ;; buffers. FILE-CREATOR must abort by signaling a file-error if it
1378 ;; could not create newfile. The error is caught and logged.
1380 ;; OPERATION (a capitalized string, e.g. `Copy') describes the
1381 ;; operation performed. It is used for error logging.
1383 ;; FN-LIST is the list of files to copy (full absolute file names).
1385 ;; NAME-CONSTRUCTOR returns a newfile for every oldfile, or nil to
1386 ;; skip. If it skips files for other reasons than a direct user
1387 ;; query, it is supposed to tell why (using dired-log).
1389 ;; Optional MARKER-CHAR is a character with which to mark every
1390 ;; newfile's entry, or t to use the current marker character if the
1391 ;; oldfile was marked.
1393 (let (dired-create-files-failures failures
1394 skipped (success-count 0) (total (length fn-list)))
1395 (let (to overwrite-query
1396 overwrite-backup-query) ; for dired-handle-overwrite
1397 (dolist (from fn-list)
1398 (setq to (funcall name-constructor from))
1399 (if (equal to from)
1400 (progn
1401 (setq to nil)
1402 (dired-log "Cannot %s to same file: %s\n"
1403 (downcase operation) from)))
1404 (if (not to)
1405 (setq skipped (cons (dired-make-relative from) skipped))
1406 (let* ((overwrite (file-exists-p to))
1407 (dired-overwrite-confirmed ; for dired-handle-overwrite
1408 (and overwrite
1409 (let ((help-form '(format "\
1410 Type SPC or `y' to overwrite file `%s',
1411 DEL or `n' to skip to next,
1412 ESC or `q' to not overwrite any of the remaining files,
1413 `!' to overwrite all remaining files with no more questions." to)))
1414 (dired-query 'overwrite-query
1415 "Overwrite `%s'?" to))))
1416 ;; must determine if FROM is marked before file-creator
1417 ;; gets a chance to delete it (in case of a move).
1418 (actual-marker-char
1419 (cond ((integerp marker-char) marker-char)
1420 (marker-char (dired-file-marker from)) ; slow
1421 (t nil))))
1422 (when (and (file-directory-p from)
1423 (file-directory-p to)
1424 (eq file-creator 'dired-copy-file))
1425 (setq to (file-name-directory to)))
1426 (condition-case err
1427 (progn
1428 (funcall file-creator from to dired-overwrite-confirmed)
1429 (if overwrite
1430 ;; If we get here, file-creator hasn't been aborted
1431 ;; and the old entry (if any) has to be deleted
1432 ;; before adding the new entry.
1433 (dired-remove-file to))
1434 (setq success-count (1+ success-count))
1435 (message "%s: %d of %d" operation success-count total)
1436 (dired-add-file to actual-marker-char))
1437 (file-error ; FILE-CREATOR aborted
1438 (progn
1439 (push (dired-make-relative from)
1440 failures)
1441 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1442 operation from to err))))))))
1443 (cond
1444 (dired-create-files-failures
1445 (setq failures (nconc failures dired-create-files-failures))
1446 (dired-log-summary
1447 (format "%s failed for %d file%s in %d requests"
1448 operation (length failures)
1449 (dired-plural-s (length failures))
1450 total)
1451 failures))
1452 (failures
1453 (dired-log-summary
1454 (format "%s failed for %d of %d file%s"
1455 operation (length failures)
1456 total (dired-plural-s total))
1457 failures))
1458 (skipped
1459 (dired-log-summary
1460 (format "%s: %d of %d file%s skipped"
1461 operation (length skipped) total
1462 (dired-plural-s total))
1463 skipped))
1465 (message "%s: %s file%s"
1466 operation success-count (dired-plural-s success-count)))))
1467 (dired-move-to-filename))
1469 (defun dired-do-create-files (op-symbol file-creator operation arg
1470 &optional marker-char op1
1471 how-to)
1472 "Create a new file for each marked file.
1473 Prompts user for target, which is a directory in which to create
1474 the new files. Target may also be a plain file if only one marked
1475 file exists. The way the default for the target directory is
1476 computed depends on the value of `dired-dwim-target-directory'.
1477 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1478 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1479 FILE-CREATOR and OPERATION as in `dired-create-files'.
1480 ARG as in `dired-get-marked-files'.
1481 Optional arg MARKER-CHAR as in `dired-create-files'.
1482 Optional arg OP1 is an alternate form for OPERATION if there is
1483 only one file.
1484 Optional arg HOW-TO determiness how to treat the target.
1485 If HOW-TO is nil, use `file-directory-p' to determine if the
1486 target is a directory. If so, the marked file(s) are created
1487 inside that directory. Otherwise, the target is a plain file;
1488 an error is raised unless there is exactly one marked file.
1489 If HOW-TO is t, target is always treated as a plain file.
1490 Otherwise, HOW-TO should be a function of one argument, TARGET.
1491 If its return value is nil, TARGET is regarded as a plain file.
1492 If it return value is a list, TARGET is a generalized
1493 directory (e.g. some sort of archive). The first element of
1494 this list must be a function with at least four arguments:
1495 operation - as OPERATION above.
1496 rfn-list - list of the relative names for the marked files.
1497 fn-list - list of the absolute names for the marked files.
1498 target - the name of the target itself.
1499 The rest of into-dir are optional arguments.
1500 For any other return value, TARGET is treated as a directory."
1501 (or op1 (setq op1 operation))
1502 (let* ((fn-list (dired-get-marked-files nil arg))
1503 (rfn-list (mapcar (function dired-make-relative) fn-list))
1504 (dired-one-file ; fluid variable inside dired-create-files
1505 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1506 (target-dir (dired-dwim-target-directory))
1507 (default (and dired-one-file
1508 (expand-file-name (file-name-nondirectory (car fn-list))
1509 target-dir)))
1510 (defaults (dired-dwim-target-defaults fn-list target-dir))
1511 (target (expand-file-name ; fluid variable inside dired-create-files
1512 (minibuffer-with-setup-hook
1513 (lambda ()
1514 (set (make-local-variable 'minibuffer-default-add-function) nil)
1515 (setq minibuffer-default defaults))
1516 (dired-mark-read-file-name
1517 (concat (if dired-one-file op1 operation) " %s to: ")
1518 target-dir op-symbol arg rfn-list default))))
1519 (into-dir (cond ((null how-to)
1520 ;; Allow DOS/Windows users to change the letter
1521 ;; case of a directory. If we don't test these
1522 ;; conditions up front, file-directory-p below
1523 ;; will return t because the filesystem is
1524 ;; case-insensitive, and Emacs will try to move
1525 ;; foo -> foo/foo, which fails.
1526 (if (and (memq system-type '(ms-dos windows-nt cygwin))
1527 (eq op-symbol 'move)
1528 dired-one-file
1529 (string= (downcase
1530 (expand-file-name (car fn-list)))
1531 (downcase
1532 (expand-file-name target)))
1533 (not (string=
1534 (file-name-nondirectory (car fn-list))
1535 (file-name-nondirectory target))))
1537 (file-directory-p target)))
1538 ((eq how-to t) nil)
1539 (t (funcall how-to target)))))
1540 (if (and (consp into-dir) (functionp (car into-dir)))
1541 (apply (car into-dir) operation rfn-list fn-list target (cdr into-dir))
1542 (if (not (or dired-one-file into-dir))
1543 (error "Marked %s: target must be a directory: %s" operation target))
1544 ;; rename-file bombs when moving directories unless we do this:
1545 (or into-dir (setq target (directory-file-name target)))
1546 (dired-create-files
1547 file-creator operation fn-list
1548 (if into-dir ; target is a directory
1549 ;; This function uses fluid variable target when called
1550 ;; inside dired-create-files:
1551 (function
1552 (lambda (from)
1553 (expand-file-name (file-name-nondirectory from) target)))
1554 (function (lambda (from) target)))
1555 marker-char))))
1557 ;; Read arguments for a marked-files command that wants a file name,
1558 ;; perhaps popping up the list of marked files.
1559 ;; ARG is the prefix arg and indicates whether the files came from
1560 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1561 ;; If the current file was used, the list has but one element and ARG
1562 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1563 ;; DEFAULT is the default value to return if the user just hits RET;
1564 ;; if it is omitted or nil, then the name of the directory is used.
1566 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1567 &optional default)
1568 (dired-mark-pop-up
1569 nil op-symbol files
1570 (function read-file-name)
1571 (format prompt (dired-mark-prompt arg files)) dir default))
1573 (defun dired-dwim-target-directory ()
1574 ;; Try to guess which target directory the user may want.
1575 ;; If there is a dired buffer displayed in one of the next windows,
1576 ;; use its current subdir, else use current subdir of this dired buffer.
1577 (let ((this-dir (and (eq major-mode 'dired-mode)
1578 (dired-current-directory))))
1579 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1580 (if dired-dwim-target
1581 (let* ((other-win (get-window-with-predicate
1582 (lambda (window)
1583 (with-current-buffer (window-buffer window)
1584 (eq major-mode 'dired-mode)))))
1585 (other-dir (and other-win
1586 (with-current-buffer (window-buffer other-win)
1587 (and (eq major-mode 'dired-mode)
1588 (dired-current-directory))))))
1589 (or other-dir this-dir))
1590 this-dir)))
1592 (defun dired-dwim-target-defaults (fn-list target-dir)
1593 ;; Return a list of default values for file-reading functions in Dired.
1594 ;; This list may contain directories from Dired buffers in other windows.
1595 ;; `fn-list' is a list of file names used to build a list of defaults.
1596 ;; When nil or more than one element, a list of defaults will
1597 ;; contain only directory names. `target-dir' is a directory name
1598 ;; to exclude from the returned list, for the case when this
1599 ;; directory name is already presented in initial input.
1600 ;; For Dired operations that support `dired-dwim-target',
1601 ;; the argument `target-dir' should have the value returned
1602 ;; from `dired-dwim-target-directory'.
1603 (let ((dired-one-file
1604 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1605 (current-dir (and (eq major-mode 'dired-mode)
1606 (dired-current-directory)))
1607 dired-dirs)
1608 ;; Get a list of directories of visible buffers in dired-mode.
1609 (walk-windows (lambda (w)
1610 (with-current-buffer (window-buffer w)
1611 (and (eq major-mode 'dired-mode)
1612 (push (dired-current-directory) dired-dirs)))))
1613 ;; Force the current dir to be the first in the list.
1614 (setq dired-dirs
1615 (delete-dups (delq nil (cons current-dir (nreverse dired-dirs)))))
1616 ;; Remove the target dir (if specified) or the current dir from
1617 ;; default values, because it should be already in initial input.
1618 (setq dired-dirs (delete (or target-dir current-dir) dired-dirs))
1619 ;; Return a list of default values.
1620 (if dired-one-file
1621 ;; For one file operation, provide a list that contains
1622 ;; other directories, other directories with the appended filename
1623 ;; and the current directory with the appended filename, e.g.
1624 ;; 1. /TARGET-DIR/
1625 ;; 2. /TARGET-DIR/FILENAME
1626 ;; 3. /CURRENT-DIR/FILENAME
1627 (append dired-dirs
1628 (mapcar (lambda (dir)
1629 (expand-file-name
1630 (file-name-nondirectory (car fn-list)) dir))
1631 (reverse dired-dirs))
1632 (list (expand-file-name
1633 (file-name-nondirectory (car fn-list))
1634 (or target-dir current-dir))))
1635 ;; For multi-file operation, return only a list of other directories.
1636 dired-dirs)))
1639 ;;;###autoload
1640 (defun dired-create-directory (directory)
1641 "Create a directory called DIRECTORY."
1642 (interactive
1643 (list (read-file-name "Create directory: " (dired-current-directory))))
1644 (let* ((expanded (directory-file-name (expand-file-name directory)))
1645 (try expanded) new)
1646 ;; Find the topmost nonexistent parent dir (variable `new')
1647 (while (and try (not (file-exists-p try)) (not (equal new try)))
1648 (setq new try
1649 try (directory-file-name (file-name-directory try))))
1650 (make-directory expanded t)
1651 (when new
1652 (dired-add-file new)
1653 (dired-move-to-filename))))
1655 (defun dired-into-dir-with-symlinks (target)
1656 (and (file-directory-p target)
1657 (not (file-symlink-p target))))
1658 ;; This may not always be what you want, especially if target is your
1659 ;; home directory and it happens to be a symbolic link, as is often the
1660 ;; case with NFS and automounters. Or if you want to make symlinks
1661 ;; into directories that themselves are only symlinks, also quite
1662 ;; common.
1664 ;; So we don't use this function as value for HOW-TO in
1665 ;; dired-do-symlink, which has the minor disadvantage of
1666 ;; making links *into* a symlinked-dir, when you really wanted to
1667 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1668 ;; just have to remove that symlink by hand before making your marked
1669 ;; symlinks.
1671 (defvar dired-copy-how-to-fn nil
1672 "Either nil or a function used by `dired-do-copy' to determine target.
1673 See HOW-TO argument for `dired-do-create-files'.")
1675 ;;;###autoload
1676 (defun dired-do-copy (&optional arg)
1677 "Copy all marked (or next ARG) files, or copy the current file.
1678 This normally preserves the last-modified date when copying.
1679 When operating on just the current file, you specify the new name.
1680 When operating on multiple or marked files, you specify a directory,
1681 and new copies of these files are made in that directory
1682 with the same names that the files currently have. The default
1683 suggested for the target directory depends on the value of
1684 `dired-dwim-target', which see.
1686 This command copies symbolic links by creating new ones,
1687 like `cp -d'."
1688 (interactive "P")
1689 (let ((dired-recursive-copies dired-recursive-copies))
1690 (dired-do-create-files 'copy (function dired-copy-file)
1691 "Copy"
1692 arg dired-keep-marker-copy
1693 nil dired-copy-how-to-fn)))
1695 ;;;###autoload
1696 (defun dired-do-symlink (&optional arg)
1697 "Make symbolic links to current file or all marked (or next ARG) files.
1698 When operating on just the current file, you specify the new name.
1699 When operating on multiple or marked files, you specify a directory
1700 and new symbolic links are made in that directory
1701 with the same names that the files currently have. The default
1702 suggested for the target directory depends on the value of
1703 `dired-dwim-target', which see.
1705 For relative symlinks, use \\[dired-do-relsymlink]."
1706 (interactive "P")
1707 (dired-do-create-files 'symlink (function make-symbolic-link)
1708 "Symlink" arg dired-keep-marker-symlink))
1710 ;;;###autoload
1711 (defun dired-do-hardlink (&optional arg)
1712 "Add names (hard links) current file or all marked (or next ARG) files.
1713 When operating on just the current file, you specify the new name.
1714 When operating on multiple or marked files, you specify a directory
1715 and new hard links are made in that directory
1716 with the same names that the files currently have. The default
1717 suggested for the target directory depends on the value of
1718 `dired-dwim-target', which see."
1719 (interactive "P")
1720 (dired-do-create-files 'hardlink (function dired-hardlink)
1721 "Hardlink" arg dired-keep-marker-hardlink))
1723 (defun dired-hardlink (file newname &optional ok-if-already-exists)
1724 (dired-handle-overwrite newname)
1725 ;; error is caught in -create-files
1726 (add-name-to-file file newname ok-if-already-exists)
1727 ;; Update the link count
1728 (dired-relist-file file))
1730 ;;;###autoload
1731 (defun dired-do-rename (&optional arg)
1732 "Rename current file or all marked (or next ARG) files.
1733 When renaming just the current file, you specify the new name.
1734 When renaming multiple or marked files, you specify a directory.
1735 This command also renames any buffers that are visiting the files.
1736 The default suggested for the target directory depends on the value
1737 of `dired-dwim-target', which see."
1738 (interactive "P")
1739 (dired-do-create-files 'move (function dired-rename-file)
1740 "Move" arg dired-keep-marker-rename "Rename"))
1741 ;;;###end dired-cp.el
1743 ;;; 5K
1744 ;;;###begin dired-re.el
1745 (defun dired-do-create-files-regexp
1746 (file-creator operation arg regexp newname &optional whole-name marker-char)
1747 ;; Create a new file for each marked file using regexps.
1748 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1749 ;; ARG as in dired-get-marked-files.
1750 ;; Matches each marked file against REGEXP and constructs the new
1751 ;; filename from NEWNAME (like in function replace-match).
1752 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1753 ;; instead of only the non-directory part of the file.
1754 ;; Optional arg MARKER-CHAR as in dired-create-files.
1755 (let* ((fn-list (dired-get-marked-files nil arg))
1756 (fn-count (length fn-list))
1757 (operation-prompt (concat operation " `%s' to `%s'?"))
1758 (rename-regexp-help-form (format "\
1759 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1760 `!' to %s all remaining matches with no more questions."
1761 (downcase operation)
1762 (downcase operation)))
1763 (regexp-name-constructor
1764 ;; Function to construct new filename using REGEXP and NEWNAME:
1765 (if whole-name ; easy (but rare) case
1766 (function
1767 (lambda (from)
1768 (let ((to (dired-string-replace-match regexp from newname))
1769 ;; must bind help-form directly around call to
1770 ;; dired-query
1771 (help-form rename-regexp-help-form))
1772 (if to
1773 (and (dired-query 'rename-regexp-query
1774 operation-prompt
1775 from
1778 (dired-log "%s: %s did not match regexp %s\n"
1779 operation from regexp)))))
1780 ;; not whole-name, replace non-directory part only
1781 (function
1782 (lambda (from)
1783 (let* ((new (dired-string-replace-match
1784 regexp (file-name-nondirectory from) newname))
1785 (to (and new ; nil means there was no match
1786 (expand-file-name new
1787 (file-name-directory from))))
1788 (help-form rename-regexp-help-form))
1789 (if to
1790 (and (dired-query 'rename-regexp-query
1791 operation-prompt
1792 (dired-make-relative from)
1793 (dired-make-relative to))
1795 (dired-log "%s: %s did not match regexp %s\n"
1796 operation (file-name-nondirectory from) regexp)))))))
1797 rename-regexp-query)
1798 (dired-create-files
1799 file-creator operation fn-list regexp-name-constructor marker-char)))
1801 (defun dired-mark-read-regexp (operation)
1802 ;; Prompt user about performing OPERATION.
1803 ;; Read and return list of: regexp newname arg whole-name.
1804 (let* ((whole-name
1805 (equal 0 (prefix-numeric-value current-prefix-arg)))
1806 (arg
1807 (if whole-name nil current-prefix-arg))
1808 (regexp
1809 (dired-read-regexp
1810 (concat (if whole-name "Abs. " "") operation " from (regexp): ")))
1811 (newname
1812 (read-string
1813 (concat (if whole-name "Abs. " "") operation " " regexp " to: "))))
1814 (list regexp newname arg whole-name)))
1816 ;;;###autoload
1817 (defun dired-do-rename-regexp (regexp newname &optional arg whole-name)
1818 "Rename selected files whose names match REGEXP to NEWNAME.
1820 With non-zero prefix argument ARG, the command operates on the next ARG
1821 files. Otherwise, it operates on all the marked files, or the current
1822 file if none are marked.
1824 As each match is found, the user must type a character saying
1825 what to do with it. For directions, type \\[help-command] at that time.
1826 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1827 REGEXP defaults to the last regexp used.
1829 With a zero prefix arg, renaming by regexp affects the absolute file name.
1830 Normally, only the non-directory part of the file name is used and changed."
1831 (interactive (dired-mark-read-regexp "Rename"))
1832 (dired-do-create-files-regexp
1833 (function dired-rename-file)
1834 "Rename" arg regexp newname whole-name dired-keep-marker-rename))
1836 ;;;###autoload
1837 (defun dired-do-copy-regexp (regexp newname &optional arg whole-name)
1838 "Copy selected files whose names match REGEXP to NEWNAME.
1839 See function `dired-do-rename-regexp' for more info."
1840 (interactive (dired-mark-read-regexp "Copy"))
1841 (let ((dired-recursive-copies nil)) ; No recursive copies.
1842 (dired-do-create-files-regexp
1843 (function dired-copy-file)
1844 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1845 arg regexp newname whole-name dired-keep-marker-copy)))
1847 ;;;###autoload
1848 (defun dired-do-hardlink-regexp (regexp newname &optional arg whole-name)
1849 "Hardlink selected files whose names match REGEXP to NEWNAME.
1850 See function `dired-do-rename-regexp' for more info."
1851 (interactive (dired-mark-read-regexp "HardLink"))
1852 (dired-do-create-files-regexp
1853 (function add-name-to-file)
1854 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink))
1856 ;;;###autoload
1857 (defun dired-do-symlink-regexp (regexp newname &optional arg whole-name)
1858 "Symlink selected files whose names match REGEXP to NEWNAME.
1859 See function `dired-do-rename-regexp' for more info."
1860 (interactive (dired-mark-read-regexp "SymLink"))
1861 (dired-do-create-files-regexp
1862 (function make-symbolic-link)
1863 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink))
1865 (defun dired-create-files-non-directory
1866 (file-creator basename-constructor operation arg)
1867 ;; Perform FILE-CREATOR on the non-directory part of marked files
1868 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1869 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1870 (let (rename-non-directory-query)
1871 (dired-create-files
1872 file-creator
1873 operation
1874 (dired-get-marked-files nil arg)
1875 (function
1876 (lambda (from)
1877 (let ((to (concat (file-name-directory from)
1878 (funcall basename-constructor
1879 (file-name-nondirectory from)))))
1880 (and (let ((help-form (format "\
1881 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1882 `!' to %s all remaining matches with no more questions."
1883 (downcase operation)
1884 (downcase operation))))
1885 (dired-query 'rename-non-directory-query
1886 (concat operation " `%s' to `%s'")
1887 (dired-make-relative from)
1888 (dired-make-relative to)))
1889 to))))
1890 dired-keep-marker-rename)))
1892 (defun dired-rename-non-directory (basename-constructor operation arg)
1893 (dired-create-files-non-directory
1894 (function dired-rename-file)
1895 basename-constructor operation arg))
1897 ;;;###autoload
1898 (defun dired-upcase (&optional arg)
1899 "Rename all marked (or next ARG) files to upper case."
1900 (interactive "P")
1901 (dired-rename-non-directory (function upcase) "Rename upcase" arg))
1903 ;;;###autoload
1904 (defun dired-downcase (&optional arg)
1905 "Rename all marked (or next ARG) files to lower case."
1906 (interactive "P")
1907 (dired-rename-non-directory (function downcase) "Rename downcase" arg))
1909 ;;;###end dired-re.el
1911 ;;; 13K
1912 ;;;###begin dired-ins.el
1914 ;;;###autoload
1915 (defun dired-maybe-insert-subdir (dirname &optional
1916 switches no-error-if-not-dir-p)
1917 "Insert this subdirectory into the same dired buffer.
1918 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1919 else inserts it at its natural place (as `ls -lR' would have done).
1920 With a prefix arg, you may edit the ls switches used for this listing.
1921 You can add `R' to the switches to expand the whole tree starting at
1922 this subdirectory.
1923 This function takes some pains to conform to `ls -lR' output.
1925 Dired remembers switches specified with a prefix arg, so that reverting
1926 the buffer will not reset them. However, using `dired-undo' to re-insert
1927 or delete subdirectories can bypass this machinery. Hence, you sometimes
1928 may have to reset some subdirectory switches after a `dired-undo'.
1929 You can reset all subdirectory switches to the default using
1930 \\<dired-mode-map>\\[dired-reset-subdir-switches].
1931 See Info node `(emacs)Subdir switches' for more details."
1932 (interactive
1933 (list (dired-get-filename)
1934 (if current-prefix-arg
1935 (read-string "Switches for listing: "
1936 (or dired-subdir-switches dired-actual-switches)))))
1937 (let ((opoint (point)))
1938 ;; We don't need a marker for opoint as the subdir is always
1939 ;; inserted *after* opoint.
1940 (setq dirname (file-name-as-directory dirname))
1941 (or (and (not switches)
1942 (dired-goto-subdir dirname))
1943 (dired-insert-subdir dirname switches no-error-if-not-dir-p))
1944 ;; Push mark so that it's easy to find back. Do this after the
1945 ;; insert message so that the user sees the `Mark set' message.
1946 (push-mark opoint)))
1948 ;;;###autoload
1949 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
1950 "Insert this subdirectory into the same dired buffer.
1951 If it is already present, overwrites previous entry,
1952 else inserts it at its natural place (as `ls -lR' would have done).
1953 With a prefix arg, you may edit the `ls' switches used for this listing.
1954 You can add `R' to the switches to expand the whole tree starting at
1955 this subdirectory.
1956 This function takes some pains to conform to `ls -lR' output."
1957 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1958 ;; Prospero where dired-ls does the right thing, but
1959 ;; file-directory-p has not been redefined.
1960 (interactive
1961 (list (dired-get-filename)
1962 (if current-prefix-arg
1963 (read-string "Switches for listing: "
1964 (or dired-subdir-switches dired-actual-switches)))))
1965 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1966 (or no-error-if-not-dir-p
1967 (file-directory-p dirname)
1968 (error "Attempt to insert a non-directory: %s" dirname))
1969 (let ((elt (assoc dirname dired-subdir-alist))
1970 (cons (assoc-string dirname dired-switches-alist))
1971 (modflag (buffer-modified-p))
1972 (old-switches switches)
1973 switches-have-R mark-alist case-fold-search buffer-read-only)
1974 (and (not switches) cons (setq switches (cdr cons)))
1975 (dired-insert-subdir-validate dirname switches)
1976 ;; case-fold-search is nil now, so we can test for capital `R':
1977 (if (setq switches-have-R (and switches (string-match "R" switches)))
1978 ;; avoid duplicated subdirs
1979 (setq mark-alist (dired-kill-tree dirname t)))
1980 (if elt
1981 ;; If subdir is already present, remove it and remember its marks
1982 (setq mark-alist (nconc (dired-insert-subdir-del elt) mark-alist))
1983 (dired-insert-subdir-newpos dirname)) ; else compute new position
1984 (dired-insert-subdir-doupdate
1985 dirname elt (dired-insert-subdir-doinsert dirname switches))
1986 (when old-switches
1987 (if cons
1988 (setcdr cons switches)
1989 (push (cons dirname switches) dired-switches-alist)))
1990 (when switches-have-R
1991 (dired-build-subdir-alist switches)
1992 (setq switches (dired-replace-in-string "R" "" switches))
1993 (dolist (cur-ass dired-subdir-alist)
1994 (let ((cur-dir (car cur-ass)))
1995 (and (dired-in-this-tree cur-dir dirname)
1996 (let ((cur-cons (assoc-string cur-dir dired-switches-alist)))
1997 (if cur-cons
1998 (setcdr cur-cons switches)
1999 (push (cons cur-dir switches) dired-switches-alist)))))))
2000 (dired-initial-position dirname)
2001 (save-excursion (dired-mark-remembered mark-alist))
2002 (restore-buffer-modified-p modflag)))
2004 (defun dired-insert-subdir-validate (dirname &optional switches)
2005 ;; Check that it is valid to insert DIRNAME with SWITCHES.
2006 ;; Signal an error if invalid (e.g. user typed `i' on `..').
2007 (or (dired-in-this-tree dirname (expand-file-name default-directory))
2008 (error "%s: not in this directory tree" dirname))
2009 (let ((real-switches (or switches dired-subdir-switches)))
2010 (when real-switches
2011 (let (case-fold-search)
2012 (mapcar
2013 (function
2014 (lambda (x)
2015 (or (eq (null (string-match x real-switches))
2016 (null (string-match x dired-actual-switches)))
2017 (error
2018 "Can't have dirs with and without -%s switches together" x))))
2019 ;; all switches that make a difference to dired-get-filename:
2020 '("F" "b"))))))
2022 (defun dired-alist-add (dir new-marker)
2023 ;; Add new DIR at NEW-MARKER. Sort alist.
2024 (dired-alist-add-1 dir new-marker)
2025 (dired-alist-sort))
2027 (defun dired-alist-sort ()
2028 ;; Keep the alist sorted on buffer position.
2029 (setq dired-subdir-alist
2030 (sort dired-subdir-alist
2031 (function (lambda (elt1 elt2)
2032 (> (dired-get-subdir-min elt1)
2033 (dired-get-subdir-min elt2)))))))
2035 (defun dired-kill-tree (dirname &optional remember-marks kill-root)
2036 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
2037 Interactively, you can kill DIRNAME as well by using a prefix argument.
2038 In interactive use, the command prompts for DIRNAME.
2040 When called from Lisp, if REMEMBER-MARKS is non-nil, return an alist
2041 of marked files. If KILL-ROOT is non-nil, kill DIRNAME as well."
2042 (interactive "DKill tree below directory: \ni\nP")
2043 (setq dirname (file-name-as-directory (expand-file-name dirname)))
2044 (let ((s-alist dired-subdir-alist) dir m-alist)
2045 (while s-alist
2046 (setq dir (car (car s-alist))
2047 s-alist (cdr s-alist))
2048 (and (or kill-root (not (string-equal dir dirname)))
2049 (dired-in-this-tree dir dirname)
2050 (dired-goto-subdir dir)
2051 (setq m-alist (nconc (dired-kill-subdir remember-marks) m-alist))))
2052 m-alist))
2054 (defun dired-insert-subdir-newpos (new-dir)
2055 ;; Find pos for new subdir, according to tree order.
2056 ;;(goto-char (point-max))
2057 (let ((alist dired-subdir-alist) elt dir pos new-pos)
2058 (while alist
2059 (setq elt (car alist)
2060 alist (cdr alist)
2061 dir (car elt)
2062 pos (dired-get-subdir-min elt))
2063 (if (dired-tree-lessp dir new-dir)
2064 ;; Insert NEW-DIR after DIR
2065 (setq new-pos (dired-get-subdir-max elt)
2066 alist nil)))
2067 (goto-char new-pos))
2068 ;; want a separating newline between subdirs
2069 (or (eobp)
2070 (forward-line -1))
2071 (insert "\n")
2072 (point))
2074 (defun dired-insert-subdir-del (element)
2075 ;; Erase an already present subdir (given by ELEMENT) from buffer.
2076 ;; Move to that buffer position. Return a mark-alist.
2077 (let ((begin-marker (dired-get-subdir-min element)))
2078 (goto-char begin-marker)
2079 ;; Are at beginning of subdir (and inside it!). Now determine its end:
2080 (goto-char (dired-subdir-max))
2081 (or (eobp);; want a separating newline _between_ subdirs:
2082 (forward-char -1))
2083 (prog1
2084 (dired-remember-marks begin-marker (point))
2085 (delete-region begin-marker (point)))))
2087 (defun dired-insert-subdir-doinsert (dirname switches)
2088 ;; Insert ls output after point.
2089 ;; Return the boundary of the inserted text (as list of BEG and END).
2090 (save-excursion
2091 (let ((begin (point)))
2092 (let ((dired-actual-switches
2093 (or switches
2094 dired-subdir-switches
2095 (dired-replace-in-string "R" "" dired-actual-switches))))
2096 (if (equal dirname (car (car (last dired-subdir-alist))))
2097 ;; If doing the top level directory of the buffer,
2098 ;; redo it as specified in dired-directory.
2099 (dired-readin-insert)
2100 (dired-insert-directory dirname dired-actual-switches nil nil t)))
2101 (list begin (point)))))
2103 (defun dired-insert-subdir-doupdate (dirname elt beg-end)
2104 ;; Point is at the correct subdir alist position for ELT,
2105 ;; BEG-END is the subdir-region (as list of begin and end).
2106 (if elt ; subdir was already present
2107 ;; update its position (should actually be unchanged)
2108 (set-marker (dired-get-subdir-min elt) (point-marker))
2109 (dired-alist-add dirname (point-marker)))
2110 ;; The hook may depend on the subdir-alist containing the just
2111 ;; inserted subdir, so run it after dired-alist-add:
2112 (if dired-after-readin-hook
2113 (save-excursion
2114 (let ((begin (nth 0 beg-end))
2115 (end (nth 1 beg-end)))
2116 (goto-char begin)
2117 (save-restriction
2118 (narrow-to-region begin end)
2119 ;; hook may add or delete lines, but the subdir boundary
2120 ;; marker floats
2121 (run-hooks 'dired-after-readin-hook))))))
2123 (defun dired-tree-lessp (dir1 dir2)
2124 ;; Lexicographic order on file name components, like `ls -lR':
2125 ;; DIR1 < DIR2 if DIR1 comes *before* DIR2 in an `ls -lR' listing,
2126 ;; i.e., if DIR1 is a (grand)parent dir of DIR2,
2127 ;; or DIR1 and DIR2 are in the same parentdir and their last
2128 ;; components are string-lessp.
2129 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
2130 ;; string-lessp could arguably be replaced by file-newer-than-file-p
2131 ;; if dired-actual-switches contained `t'.
2132 (setq dir1 (file-name-as-directory dir1)
2133 dir2 (file-name-as-directory dir2))
2134 (let ((components-1 (dired-split "/" dir1))
2135 (components-2 (dired-split "/" dir2)))
2136 (while (and components-1
2137 components-2
2138 (equal (car components-1) (car components-2)))
2139 (setq components-1 (cdr components-1)
2140 components-2 (cdr components-2)))
2141 (let ((c1 (car components-1))
2142 (c2 (car components-2)))
2144 (cond ((and c1 c2)
2145 (string-lessp c1 c2))
2146 ((and (null c1) (null c2))
2147 nil) ; they are equal, not lessp
2148 ((null c1) ; c2 is a subdir of c1: c1<c2
2150 ((null c2) ; c1 is a subdir of c2: c1>c2
2151 nil)
2152 (t (error "This can't happen"))))))
2154 ;; There should be a builtin split function - inverse to mapconcat.
2155 (defun dired-split (pat str &optional limit)
2156 "Splitting on regexp PAT, turn string STR into a list of substrings.
2157 Optional third arg LIMIT (>= 1) is a limit to the length of the
2158 resulting list.
2159 Thus, if SEP is a regexp that only matches itself,
2161 (mapconcat 'identity (dired-split SEP STRING) SEP)
2163 is always equal to STRING."
2164 (let* ((start (string-match pat str))
2165 (result (list (substring str 0 start)))
2166 (count 1)
2167 (end (if start (match-end 0))))
2168 (if end ; else nothing left
2169 (while (and (or (not (integerp limit))
2170 (< count limit))
2171 (string-match pat str end))
2172 (setq start (match-beginning 0)
2173 count (1+ count)
2174 result (cons (substring str end start) result)
2175 end (match-end 0)
2176 start end)
2178 (if (and (or (not (integerp limit))
2179 (< count limit))
2180 end) ; else nothing left
2181 (setq result
2182 (cons (substring str end) result)))
2183 (nreverse result)))
2185 ;;; moving by subdirectories
2187 ;;;###autoload
2188 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip)
2189 "Go to previous subdirectory, regardless of level.
2190 When called interactively and not on a subdir line, go to this subdir's line."
2191 ;;(interactive "p")
2192 (interactive
2193 (list (if current-prefix-arg
2194 (prefix-numeric-value current-prefix-arg)
2195 ;; if on subdir start already, don't stay there!
2196 (if (dired-get-subdir) 1 0))))
2197 (dired-next-subdir (- arg) no-error-if-not-found no-skip))
2199 (defun dired-subdir-min ()
2200 (save-excursion
2201 (if (not (dired-prev-subdir 0 t t))
2202 (error "Not in a subdir!")
2203 (point))))
2205 ;;;###autoload
2206 (defun dired-goto-subdir (dir)
2207 "Go to end of header line of DIR in this dired buffer.
2208 Return value of point on success, otherwise return nil.
2209 The next char is either \\n, or \\r if DIR is hidden."
2210 (interactive
2211 (prog1 ; let push-mark display its message
2212 (list (expand-file-name
2213 (completing-read "Goto in situ directory: " ; prompt
2214 dired-subdir-alist ; table
2215 nil ; predicate
2216 t ; require-match
2217 (dired-current-directory))))
2218 (push-mark)))
2219 (setq dir (file-name-as-directory dir))
2220 (let ((elt (assoc dir dired-subdir-alist)))
2221 (and elt
2222 (goto-char (dired-get-subdir-min elt))
2223 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
2224 ;; at either \r or \n after this function succeeds.
2225 (progn (skip-chars-forward "^\r\n")
2226 (point)))))
2228 ;;;###autoload
2229 (defun dired-mark-subdir-files ()
2230 "Mark all files except `.' and `..' in current subdirectory.
2231 If the Dired buffer shows multiple directories, this command
2232 marks the files listed in the subdirectory that point is in."
2233 (interactive)
2234 (let ((p-min (dired-subdir-min)))
2235 (dired-mark-files-in-region p-min (dired-subdir-max))))
2237 ;;;###autoload
2238 (defun dired-kill-subdir (&optional remember-marks)
2239 "Remove all lines of current subdirectory.
2240 Lower levels are unaffected."
2241 ;; With optional REMEMBER-MARKS, return a mark-alist.
2242 (interactive)
2243 (let* ((beg (dired-subdir-min))
2244 (end (dired-subdir-max))
2245 (modflag (buffer-modified-p))
2246 (cur-dir (dired-current-directory))
2247 (cons (assoc-string cur-dir dired-switches-alist))
2248 buffer-read-only)
2249 (if (equal cur-dir default-directory)
2250 (error "Attempt to kill top level directory"))
2251 (prog1
2252 (if remember-marks (dired-remember-marks beg end))
2253 (delete-region beg end)
2254 (if (eobp) ; don't leave final blank line
2255 (delete-char -1))
2256 (dired-unsubdir cur-dir)
2257 (when cons
2258 (setq dired-switches-alist (delete cons dired-switches-alist)))
2259 (restore-buffer-modified-p modflag))))
2261 (defun dired-unsubdir (dir)
2262 ;; Remove DIR from the alist
2263 (setq dired-subdir-alist
2264 (delq (assoc dir dired-subdir-alist) dired-subdir-alist)))
2266 ;;;###autoload
2267 (defun dired-tree-up (arg)
2268 "Go up ARG levels in the dired tree."
2269 (interactive "p")
2270 (let ((dir (dired-current-directory)))
2271 (while (>= arg 1)
2272 (setq arg (1- arg)
2273 dir (file-name-directory (directory-file-name dir))))
2274 ;;(setq dir (expand-file-name dir))
2275 (or (dired-goto-subdir dir)
2276 (error "Cannot go up to %s - not in this tree" dir))))
2278 ;;;###autoload
2279 (defun dired-tree-down ()
2280 "Go down in the dired tree."
2281 (interactive)
2282 (let ((dir (dired-current-directory)) ; has slash
2283 pos case-fold-search) ; filenames are case sensitive
2284 (let ((rest (reverse dired-subdir-alist)) elt)
2285 (while rest
2286 (setq elt (car rest)
2287 rest (cdr rest))
2288 (if (dired-in-this-tree (directory-file-name (car elt)) dir)
2289 (setq rest nil
2290 pos (dired-goto-subdir (car elt))))))
2291 (if pos
2292 (goto-char pos)
2293 (error "At the bottom"))))
2295 ;;; hiding
2297 (defun dired-unhide-subdir ()
2298 (let (buffer-read-only)
2299 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?\r ?\n)))
2301 (defun dired-hide-check ()
2302 (or selective-display
2303 (error "selective-display must be t for subdir hiding to work!")))
2305 (defun dired-subdir-hidden-p (dir)
2306 (and selective-display
2307 (save-excursion
2308 (dired-goto-subdir dir)
2309 (looking-at "\r"))))
2311 ;;;###autoload
2312 (defun dired-hide-subdir (arg)
2313 "Hide or unhide the current subdirectory and move to next directory.
2314 Optional prefix arg is a repeat factor.
2315 Use \\[dired-hide-all] to (un)hide all directories."
2316 (interactive "p")
2317 (dired-hide-check)
2318 (let ((modflag (buffer-modified-p)))
2319 (while (>= (setq arg (1- arg)) 0)
2320 (let* ((cur-dir (dired-current-directory))
2321 (hidden-p (dired-subdir-hidden-p cur-dir))
2322 (elt (assoc cur-dir dired-subdir-alist))
2323 (end-pos (1- (dired-get-subdir-max elt)))
2324 buffer-read-only)
2325 ;; keep header line visible, hide rest
2326 (goto-char (dired-get-subdir-min elt))
2327 (skip-chars-forward "^\n\r")
2328 (if hidden-p
2329 (subst-char-in-region (point) end-pos ?\r ?\n)
2330 (subst-char-in-region (point) end-pos ?\n ?\r)))
2331 (dired-next-subdir 1 t))
2332 (restore-buffer-modified-p modflag)))
2334 ;;;###autoload
2335 (defun dired-hide-all (&optional ignored)
2336 "Hide all subdirectories, leaving only their header lines.
2337 If there is already something hidden, make everything visible again.
2338 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2339 (interactive "P")
2340 (dired-hide-check)
2341 (let ((modflag (buffer-modified-p))
2342 buffer-read-only)
2343 (if (save-excursion
2344 (goto-char (point-min))
2345 (search-forward "\r" nil t))
2346 ;; unhide - bombs on \r in filenames
2347 (subst-char-in-region (point-min) (point-max) ?\r ?\n)
2348 ;; hide
2349 (let ((pos (point-max)) ; pos of end of last directory
2350 (alist dired-subdir-alist))
2351 (while alist ; while there are dirs before pos
2352 (subst-char-in-region (dired-get-subdir-min (car alist)) ; pos of prev dir
2353 (save-excursion
2354 (goto-char pos) ; current dir
2355 ;; we're somewhere on current dir's line
2356 (forward-line -1)
2357 (point))
2358 ?\n ?\r)
2359 (setq pos (dired-get-subdir-min (car alist))) ; prev dir gets current dir
2360 (setq alist (cdr alist)))))
2361 (restore-buffer-modified-p modflag)))
2363 ;;;###end dired-ins.el
2366 ;; Search only in file names in the Dired buffer.
2368 (defcustom dired-isearch-filenames nil
2369 "Non-nil to Isearch in file names only.
2370 If t, Isearch in Dired always matches only file names.
2371 If `dwim', Isearch matches file names when initial point position is on
2372 a file name. Otherwise, it searches the whole buffer without restrictions."
2373 :type '(choice (const :tag "No restrictions" nil)
2374 (const :tag "When point is on a file name initially, search file names" dwim)
2375 (const :tag "Always search in file names" t))
2376 :group 'dired
2377 :version "23.1")
2379 (defvar dired-isearch-filter-predicate-orig nil)
2381 (defun dired-isearch-filenames-toggle ()
2382 "Toggle file names searching on or off.
2383 When on, Isearch skips matches outside file names using the predicate
2384 `dired-isearch-filter-filenames' that matches only at file names.
2385 When off, it uses the original predicate."
2386 (interactive)
2387 (setq isearch-filter-predicate
2388 (if (eq isearch-filter-predicate 'dired-isearch-filter-filenames)
2389 dired-isearch-filter-predicate-orig
2390 'dired-isearch-filter-filenames))
2391 (setq isearch-success t isearch-adjusted t)
2392 (isearch-update))
2394 ;;;###autoload
2395 (defun dired-isearch-filenames-setup ()
2396 "Set up isearch to search in Dired file names.
2397 Intended to be added to `isearch-mode-hook'."
2398 (when (or (eq dired-isearch-filenames t)
2399 (and (eq dired-isearch-filenames 'dwim)
2400 (get-text-property (point) 'dired-filename)))
2401 (setq isearch-message-prefix-add "filename ")
2402 (define-key isearch-mode-map "\M-sf" 'dired-isearch-filenames-toggle)
2403 (setq dired-isearch-filter-predicate-orig
2404 (default-value 'isearch-filter-predicate))
2405 (setq-default isearch-filter-predicate 'dired-isearch-filter-filenames)
2406 (add-hook 'isearch-mode-end-hook 'dired-isearch-filenames-end nil t)))
2408 (defun dired-isearch-filenames-end ()
2409 "Clean up the Dired file name search after terminating isearch."
2410 (setq isearch-message-prefix-add nil)
2411 (define-key isearch-mode-map "\M-sf" nil)
2412 (setq-default isearch-filter-predicate dired-isearch-filter-predicate-orig)
2413 (remove-hook 'isearch-mode-end-hook 'dired-isearch-filenames-end t))
2415 (defun dired-isearch-filter-filenames (beg end)
2416 "Test whether the current search hit is a visible file name.
2417 Return non-nil if the text from BEG to END is part of a file
2418 name (has the text property `dired-filename') and is visible."
2419 (and (isearch-filter-visible beg end)
2420 (if dired-isearch-filenames
2421 (text-property-not-all (min beg end) (max beg end)
2422 'dired-filename nil)
2423 t)))
2425 ;;;###autoload
2426 (defun dired-isearch-filenames ()
2427 "Search for a string using Isearch only in file names in the Dired buffer."
2428 (interactive)
2429 (let ((dired-isearch-filenames t))
2430 (isearch-forward)))
2432 ;;;###autoload
2433 (defun dired-isearch-filenames-regexp ()
2434 "Search for a regexp using Isearch only in file names in the Dired buffer."
2435 (interactive)
2436 (let ((dired-isearch-filenames t))
2437 (isearch-forward-regexp)))
2440 ;; Functions for searching in tags style among marked files.
2442 ;;;###autoload
2443 (defun dired-do-isearch ()
2444 "Search for a string through all marked files using Isearch."
2445 (interactive)
2446 (multi-isearch-files
2447 (dired-get-marked-files nil nil 'dired-nondirectory-p)))
2449 ;;;###autoload
2450 (defun dired-do-isearch-regexp ()
2451 "Search for a regexp through all marked files using Isearch."
2452 (interactive)
2453 (multi-isearch-files-regexp
2454 (dired-get-marked-files nil nil 'dired-nondirectory-p)))
2456 ;;;###autoload
2457 (defun dired-do-search (regexp)
2458 "Search through all marked files for a match for REGEXP.
2459 Stops when a match is found.
2460 To continue searching for next match, use command \\[tags-loop-continue]."
2461 (interactive "sSearch marked files (regexp): ")
2462 (tags-search regexp '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2464 ;;;###autoload
2465 (defun dired-do-query-replace-regexp (from to &optional delimited)
2466 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2467 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2468 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2469 with the command \\[tags-loop-continue]."
2470 (interactive
2471 (let ((common
2472 (query-replace-read-args
2473 "Query replace regexp in marked files" t t)))
2474 (list (nth 0 common) (nth 1 common) (nth 2 common))))
2475 (dolist (file (dired-get-marked-files nil nil 'dired-nondirectory-p))
2476 (let ((buffer (get-file-buffer file)))
2477 (if (and buffer (with-current-buffer buffer
2478 buffer-read-only))
2479 (error "File `%s' is visited read-only" file))))
2480 (tags-query-replace from to delimited
2481 '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2483 (defun dired-nondirectory-p (file)
2484 (not (file-directory-p file)))
2486 ;;;###autoload
2487 (defun dired-show-file-type (file &optional deref-symlinks)
2488 "Print the type of FILE, according to the `file' command.
2489 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2490 true then the type of the file linked to by FILE is printed instead."
2491 (interactive (list (dired-get-filename t) current-prefix-arg))
2492 (let (process-file-side-effects)
2493 (with-temp-buffer
2494 (if deref-symlinks
2495 (process-file "file" nil t t "-L" "--" file)
2496 (process-file "file" nil t t "--" file))
2497 (when (bolp)
2498 (backward-delete-char 1))
2499 (message "%s" (buffer-string)))))
2501 (provide 'dired-aux)
2503 ;; Local Variables:
2504 ;; byte-compile-dynamic: t
2505 ;; generated-autoload-file: "dired.el"
2506 ;; End:
2508 ;;; dired-aux.el ends here