Merge from emacs--rel--22
[emacs.git] / lisp / dired-aux.el
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1 ;;; dired-aux.el --- less commonly used parts of dired -*-byte-compile-dynamic: t;-*-
3 ;; Copyright (C) 1985, 1986, 1992, 1994, 1998, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
7 ;; Maintainer: FSF
8 ;; Keywords: files
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 3, or (at your option)
15 ;; any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
27 ;;; Commentary:
29 ;; The parts of dired mode not normally used. This is a space-saving hack
30 ;; to avoid having to load a large mode when all that's wanted are a few
31 ;; functions.
33 ;; Rewritten in 1990/1991 to add tree features, file marking and
34 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
35 ;; Finished up by rms in 1992.
37 ;;; Code:
39 ;; We need macros in dired.el to compile properly.
40 (eval-when-compile (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 (default (if (mark t)
65 (save-excursion (goto-char (mark t))
66 (dired-get-filename t t)))))
67 (if (or (equal default current)
68 (and (not (equal (dired-dwim-target-directory)
69 (dired-current-directory)))
70 (not mark-active)))
71 (setq default nil))
72 (require 'diff)
73 (list (read-file-name (format "Diff %s with%s: "
74 current
75 (if default
76 (concat " (default " default ")")
77 ""))
78 (if default
79 (dired-current-directory)
80 (dired-dwim-target-directory))
81 default t)
82 (if current-prefix-arg
83 (read-string "Options for diff: "
84 (if (stringp diff-switches)
85 diff-switches
86 (mapconcat 'identity diff-switches " ")))))))
87 (diff file (dired-get-filename t) switches))
89 ;;;###autoload
90 (defun dired-backup-diff (&optional switches)
91 "Diff this file with its backup file or vice versa.
92 Uses the latest backup, if there are several numerical backups.
93 If this file is a backup, diff it with its original.
94 The backup file is the first file given to `diff'.
95 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
96 (interactive
97 (if current-prefix-arg
98 (list (read-string "Options for diff: "
99 (if (stringp diff-switches)
100 diff-switches
101 (mapconcat 'identity diff-switches " "))))
102 nil))
103 (diff-backup (dired-get-filename) switches))
105 ;;;###autoload
106 (defun dired-compare-directories (dir2 predicate)
107 "Mark files with different file attributes in two dired buffers.
108 Compare file attributes of files in the current directory
109 with file attributes in directory DIR2 using PREDICATE on pairs of files
110 with the same name. Mark files for which PREDICATE returns non-nil.
111 Mark files with different names if PREDICATE is nil (or interactively
112 with empty input at the predicate prompt).
114 PREDICATE is a Lisp expression that can refer to the following variables:
116 size1, size2 - file size in bytes
117 mtime1, mtime2 - last modification time in seconds, as a float
118 fa1, fa2 - list of file attributes
119 returned by function `file-attributes'
121 where 1 refers to attribute of file in the current dired buffer
122 and 2 to attribute of file in second dired buffer.
124 Examples of PREDICATE:
126 (> mtime1 mtime2) - mark newer files
127 (not (= size1 size2)) - mark files with different sizes
128 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
129 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
130 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
131 (interactive
132 (list (read-directory-name (format "Compare %s with: "
133 (dired-current-directory))
134 (dired-dwim-target-directory)
135 (dired-dwim-target-directory))
136 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil "nil")))
137 (let* ((dir1 (dired-current-directory))
138 (file-alist1 (dired-files-attributes dir1))
139 (file-alist2 (dired-files-attributes dir2))
140 file-list1 file-list2)
141 (setq file-alist1 (delq (assoc "." file-alist1) file-alist1))
142 (setq file-alist1 (delq (assoc ".." file-alist1) file-alist1))
143 (setq file-alist2 (delq (assoc "." file-alist2) file-alist2))
144 (setq file-alist2 (delq (assoc ".." file-alist2) file-alist2))
145 (setq file-list1 (mapcar
146 'cadr
147 (dired-file-set-difference
148 file-alist1 file-alist2
149 predicate))
150 file-list2 (mapcar
151 'cadr
152 (dired-file-set-difference
153 file-alist2 file-alist1
154 predicate)))
155 (dired-fun-in-all-buffers
156 dir1 nil
157 (lambda ()
158 (dired-mark-if
159 (member (dired-get-filename nil t) file-list1) nil)))
160 (dired-fun-in-all-buffers
161 dir2 nil
162 (lambda ()
163 (dired-mark-if
164 (member (dired-get-filename nil t) file-list2) nil)))
165 (message "Marked in dir1: %s files, in dir2: %s files"
166 (length file-list1)
167 (length file-list2))))
169 (defun dired-file-set-difference (list1 list2 predicate)
170 "Combine LIST1 and LIST2 using a set-difference operation.
171 The result list contains all file items that appear in LIST1 but not LIST2.
172 This is a non-destructive function; it makes a copy of the data if necessary
173 to avoid corrupting the original LIST1 and LIST2.
174 PREDICATE (see `dired-compare-directories') is an additional match
175 condition. Two file items are considered to match if they are equal
176 *and* PREDICATE evaluates to t."
177 (if (or (null list1) (null list2))
178 list1
179 (let (res)
180 (dolist (file1 list1)
181 (unless (let ((list list2))
182 (while (and list
183 (not (let* ((file2 (car list))
184 (fa1 (car (cddr file1)))
185 (fa2 (car (cddr file2)))
186 (size1 (nth 7 fa1))
187 (size2 (nth 7 fa2))
188 (mtime1 (float-time (nth 5 fa1)))
189 (mtime2 (float-time (nth 5 fa2))))
190 (and
191 (equal (car file1) (car file2))
192 (not (eval predicate))))))
193 (setq list (cdr list)))
194 list)
195 (setq res (cons file1 res))))
196 (nreverse res))))
198 (defun dired-files-attributes (dir)
199 "Return a list of all file names and attributes from DIR.
200 List has a form of (file-name full-file-name (attribute-list))"
201 (mapcar
202 (lambda (file-name)
203 (let ((full-file-name (expand-file-name file-name dir)))
204 (list file-name
205 full-file-name
206 (file-attributes full-file-name))))
207 (directory-files dir)))
210 (defun dired-touch-initial (files)
211 "Create initial input value for `touch' command."
212 (let (initial)
213 (while files
214 (let ((current (nth 5 (file-attributes (car files)))))
215 (if (and initial (not (equal initial current)))
216 (setq initial (current-time) files nil)
217 (setq initial current))
218 (setq files (cdr files))))
219 (format-time-string "%Y%m%d%H%M.%S" initial)))
221 (defun dired-do-chxxx (attribute-name program op-symbol arg)
222 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
223 ;; refresh their file lines.
224 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
225 ;; PROGRAM is the program used to change the attribute.
226 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
227 ;; ARG describes which files to use, as in dired-get-marked-files.
228 (let* ((files (dired-get-marked-files t arg))
229 (new-attribute
230 (dired-mark-read-string
231 (concat "Change " attribute-name " of %s to: ")
232 (if (eq op-symbol 'touch) (dired-touch-initial files))
233 op-symbol arg files))
234 (operation (concat program " " new-attribute))
235 failures)
236 (setq failures
237 (dired-bunch-files 10000
238 (function dired-check-process)
239 (append
240 (list operation program)
241 (if (eq op-symbol 'touch)
242 '("-t") nil)
243 (list new-attribute)
244 (if (string-match "gnu" system-configuration)
245 '("--") nil))
246 files))
247 (dired-do-redisplay arg);; moves point if ARG is an integer
248 (if failures
249 (dired-log-summary
250 (format "%s: error" operation)
251 nil))))
253 ;;;###autoload
254 (defun dired-do-chmod (&optional arg)
255 "Change the mode of the marked (or next ARG) files.
256 Symbolic modes like `g+w' are allowed."
257 (interactive "P")
258 (let* ((files (dired-get-marked-files t arg))
259 (modes (dired-mark-read-string
260 "Change mode of %s to: " nil
261 'chmod arg files))
262 (num-modes (if (string-match "^[0-7]+" modes)
263 (string-to-number modes 8))))
264 (dolist (file files)
265 (set-file-modes
266 file
267 (if num-modes num-modes
268 (file-modes-symbolic-to-number modes (file-modes file)))))
269 (dired-do-redisplay arg)))
271 ;;;###autoload
272 (defun dired-do-chgrp (&optional arg)
273 "Change the group of the marked (or next ARG) files."
274 (interactive "P")
275 (if (memq system-type '(ms-dos windows-nt))
276 (error "chgrp not supported on this system"))
277 (dired-do-chxxx "Group" "chgrp" 'chgrp arg))
279 ;;;###autoload
280 (defun dired-do-chown (&optional arg)
281 "Change the owner of the marked (or next ARG) files."
282 (interactive "P")
283 (if (memq system-type '(ms-dos windows-nt))
284 (error "chown not supported on this system"))
285 (dired-do-chxxx "Owner" dired-chown-program 'chown arg))
287 ;;;###autoload
288 (defun dired-do-touch (&optional arg)
289 "Change the timestamp of the marked (or next ARG) files.
290 This calls touch."
291 (interactive "P")
292 (dired-do-chxxx "Timestamp" dired-touch-program 'touch arg))
294 ;; Process all the files in FILES in batches of a convenient size,
295 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
296 ;; Batches are chosen to need less than MAX chars for the file names,
297 ;; allowing 3 extra characters of separator per file name.
298 (defun dired-bunch-files (max function args files)
299 (let (pending
300 past
301 (pending-length 0)
302 failures)
303 ;; Accumulate files as long as they fit in MAX chars,
304 ;; then process the ones accumulated so far.
305 (while files
306 (let* ((thisfile (car files))
307 (thislength (+ (length thisfile) 3))
308 (rest (cdr files)))
309 ;; If we have at least 1 pending file
310 ;; and this file won't fit in the length limit, process now.
311 (if (and pending (> (+ thislength pending-length) max))
312 (setq pending (nreverse pending)
313 ;; The elements of PENDING are now in forward order.
314 ;; Do the operation and record failures.
315 failures (nconc (apply function (append args pending))
316 failures)
317 ;; Transfer the elemens of PENDING onto PAST
318 ;; and clear it out. Now PAST contains the first N files
319 ;; specified (for some N), and FILES contains the rest.
320 past (nconc past pending)
321 pending nil
322 pending-length 0))
323 ;; Do (setq pending (cons thisfile pending))
324 ;; but reuse the cons that was in `files'.
325 (setcdr files pending)
326 (setq pending files)
327 (setq pending-length (+ thislength pending-length))
328 (setq files rest)))
329 (setq pending (nreverse pending))
330 (prog1
331 (nconc (apply function (append args pending))
332 failures)
333 ;; Now the original list FILES has been put back as it was.
334 (nconc past pending))))
336 ;;;###autoload
337 (defun dired-do-print (&optional arg)
338 "Print the marked (or next ARG) files.
339 Uses the shell command coming from variables `lpr-command' and
340 `lpr-switches' as default."
341 (interactive "P")
342 (let* ((file-list (dired-get-marked-files t arg))
343 (command (dired-mark-read-string
344 "Print %s with: "
345 (mapconcat 'identity
346 (cons lpr-command
347 (if (stringp lpr-switches)
348 (list lpr-switches)
349 lpr-switches))
350 " ")
351 'print arg file-list)))
352 (dired-run-shell-command (dired-shell-stuff-it command file-list nil))))
354 ;; Read arguments for a marked-files command that wants a string
355 ;; that is not a file name,
356 ;; perhaps popping up the list of marked files.
357 ;; ARG is the prefix arg and indicates whether the files came from
358 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
359 ;; If the current file was used, the list has but one element and ARG
360 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
362 (defun dired-mark-read-string (prompt initial op-symbol arg files)
363 ;; PROMPT for a string, with INITIAL input.
364 ;; Other args are used to give user feedback and pop-up:
365 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
366 (dired-mark-pop-up
367 nil op-symbol files
368 (function read-string)
369 (format prompt (dired-mark-prompt arg files)) initial))
371 ;;; Cleaning a directory: flagging some backups for deletion.
373 (defvar dired-file-version-alist)
375 ;;;###autoload
376 (defun dired-clean-directory (keep)
377 "Flag numerical backups for deletion.
378 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
379 Positive prefix arg KEEP overrides `dired-kept-versions';
380 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
382 To clear the flags on these files, you can use \\[dired-flag-backup-files]
383 with a prefix argument."
384 (interactive "P")
385 (setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
386 (let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
387 (late-retention (if (<= keep 0) dired-kept-versions keep))
388 (dired-file-version-alist ()))
389 (message "Cleaning numerical backups (keeping %d late, %d old)..."
390 late-retention early-retention)
391 ;; Look at each file.
392 ;; If the file has numeric backup versions,
393 ;; put on dired-file-version-alist an element of the form
394 ;; (FILENAME . VERSION-NUMBER-LIST)
395 (dired-map-dired-file-lines (function dired-collect-file-versions))
396 ;; Sort each VERSION-NUMBER-LIST,
397 ;; and remove the versions not to be deleted.
398 (let ((fval dired-file-version-alist))
399 (while fval
400 (let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
401 (v-count (length sorted-v-list)))
402 (if (> v-count (+ early-retention late-retention))
403 (rplacd (nthcdr early-retention sorted-v-list)
404 (nthcdr (- v-count late-retention)
405 sorted-v-list)))
406 (rplacd (car fval)
407 (cdr sorted-v-list)))
408 (setq fval (cdr fval))))
409 ;; Look at each file. If it is a numeric backup file,
410 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
411 (dired-map-dired-file-lines (function dired-trample-file-versions))
412 (message "Cleaning numerical backups...done")))
414 ;;; Subroutines of dired-clean-directory.
416 (defun dired-map-dired-file-lines (fun)
417 ;; Perform FUN with point at the end of each non-directory line.
418 ;; FUN takes one argument, the absolute filename.
419 (save-excursion
420 (let (file buffer-read-only)
421 (goto-char (point-min))
422 (while (not (eobp))
423 (save-excursion
424 (and (not (looking-at dired-re-dir))
425 (not (eolp))
426 (setq file (dired-get-filename nil t)) ; nil on non-file
427 (progn (end-of-line)
428 (funcall fun file))))
429 (forward-line 1)))))
431 (defun dired-collect-file-versions (fn)
432 (let ((fn (file-name-sans-versions fn)))
433 ;; Only do work if this file is not already in the alist.
434 (if (assoc fn dired-file-version-alist)
436 ;; If it looks like file FN has versions, return a list of the versions.
437 ;;That is a list of strings which are file names.
438 ;;The caller may want to flag some of these files for deletion.
439 (let* ((base-versions
440 (concat (file-name-nondirectory fn) ".~"))
441 (backup-extract-version-start (length base-versions))
442 (possibilities (file-name-all-completions
443 base-versions
444 (file-name-directory fn)))
445 (versions (mapcar 'backup-extract-version possibilities)))
446 (if versions
447 (setq dired-file-version-alist
448 (cons (cons fn versions)
449 dired-file-version-alist)))))))
451 (defun dired-trample-file-versions (fn)
452 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
453 base-version-list)
454 (and start-vn
455 (setq base-version-list ; there was a base version to which
456 (assoc (substring fn 0 start-vn) ; this looks like a
457 dired-file-version-alist)) ; subversion
458 (not (memq (string-to-number (substring fn (+ 2 start-vn)))
459 base-version-list)) ; this one doesn't make the cut
460 (progn (beginning-of-line)
461 (delete-char 1)
462 (insert dired-del-marker)))))
464 ;;; Shell commands
466 (defun dired-read-shell-command (prompt arg files)
467 ;; "Read a dired shell command prompting with PROMPT (using read-string).
468 ;;ARG is the prefix arg and may be used to indicate in the prompt which
469 ;; files are affected.
470 ;;This is an extra function so that you can redefine it, e.g., to use gmhist."
471 (dired-mark-pop-up
472 nil 'shell files
473 (function read-string)
474 (format prompt (dired-mark-prompt arg files))
475 nil 'shell-command-history))
477 ;; The in-background argument is only needed in Emacs 18 where
478 ;; shell-command doesn't understand an appended ampersand `&'.
479 ;;;###autoload
480 (defun dired-do-shell-command (command &optional arg file-list)
481 "Run a shell command COMMAND on the marked files.
482 If no files are marked or a specific numeric prefix arg is given,
483 the next ARG files are used. Just \\[universal-argument] means the current file.
484 The prompt mentions the file(s) or the marker, as appropriate.
486 If there is a `*' in COMMAND, surrounded by whitespace, this runs
487 COMMAND just once with the entire file list substituted there.
489 If there is no `*', but there is a `?' in COMMAND, surrounded by
490 whitespace, this runs COMMAND on each file individually with the
491 file name substituted for `?'.
493 Otherwise, this runs COMMAND on each file individually with the
494 file name added at the end of COMMAND (separated by a space).
496 `*' and `?' when not surrounded by whitespace have no special
497 significance for `dired-do-shell-command', and are passed through
498 normally to the shell, but you must confirm first. To pass `*' by
499 itself to the shell as a wildcard, type `*\"\"'.
501 If COMMAND produces output, it goes to a separate buffer.
503 This feature does not try to redisplay Dired buffers afterward, as
504 there's no telling what files COMMAND may have changed.
505 Type \\[dired-do-redisplay] to redisplay the marked files.
507 When COMMAND runs, its working directory is the top-level directory of
508 the Dired buffer, so output files usually are created there instead of
509 in a subdir.
511 In a noninteractive call (from Lisp code), you must specify
512 the list of file names explicitly with the FILE-LIST argument, which
513 can be produced by `dired-get-marked-files', for example."
514 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
515 ;;actual work and can be redefined for customization.
516 (interactive
517 (let ((files (dired-get-marked-files t current-prefix-arg)))
518 (list
519 ;; Want to give feedback whether this file or marked files are used:
520 (dired-read-shell-command (concat "! on "
521 "%s: ")
522 current-prefix-arg
523 files)
524 current-prefix-arg
525 files)))
526 (let* ((on-each (not (string-match dired-star-subst-regexp command)))
527 (subst (not (string-match dired-quark-subst-regexp command)))
528 (star (not (string-match "\\*" command)))
529 (qmark (not (string-match "\\?" command))))
530 ;; Get confirmation for wildcards that may have been meant
531 ;; to control substitution of a file name or the file name list.
532 (if (cond ((not (or on-each subst))
533 (error "You can not combine `*' and `?' substitution marks"))
534 ((and star (not on-each))
535 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
536 ((and qmark (not subst))
537 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
538 (t))
539 (if on-each
540 (dired-bunch-files
541 (- 10000 (length command))
542 (function (lambda (&rest files)
543 (dired-run-shell-command
544 (dired-shell-stuff-it command files t arg))))
546 file-list)
547 ;; execute the shell command
548 (dired-run-shell-command
549 (dired-shell-stuff-it command file-list nil arg))))))
551 ;; Might use {,} for bash or csh:
552 (defvar dired-mark-prefix ""
553 "Prepended to marked files in dired shell commands.")
554 (defvar dired-mark-postfix ""
555 "Appended to marked files in dired shell commands.")
556 (defvar dired-mark-separator " "
557 "Separates marked files in dired shell commands.")
559 (defun dired-shell-stuff-it (command file-list on-each &optional raw-arg)
560 ;; "Make up a shell command line from COMMAND and FILE-LIST.
561 ;; If ON-EACH is t, COMMAND should be applied to each file, else
562 ;; simply concat all files and apply COMMAND to this.
563 ;; FILE-LIST's elements will be quoted for the shell."
564 ;; Might be redefined for smarter things and could then use RAW-ARG
565 ;; (coming from interactive P and currently ignored) to decide what to do.
566 ;; Smart would be a way to access basename or extension of file names.
567 (let ((stuff-it
568 (if (or (string-match dired-star-subst-regexp command)
569 (string-match dired-quark-subst-regexp command))
570 (lambda (x)
571 (let ((retval command))
572 (while (string-match
573 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
574 (setq retval (replace-match x t t retval 2)))
575 retval))
576 (lambda (x) (concat command dired-mark-separator x)))))
577 (if on-each
578 (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
579 (let ((files (mapconcat 'shell-quote-argument
580 file-list dired-mark-separator)))
581 (if (> (length file-list) 1)
582 (setq files (concat dired-mark-prefix files dired-mark-postfix)))
583 (funcall stuff-it files)))))
585 ;; This is an extra function so that it can be redefined by ange-ftp.
586 ;;;###autoload
587 (defun dired-run-shell-command (command)
588 (let ((handler
589 (find-file-name-handler (directory-file-name default-directory)
590 'shell-command)))
591 (if handler (apply handler 'shell-command (list command))
592 (shell-command command)))
593 ;; Return nil for sake of nconc in dired-bunch-files.
594 nil)
597 (defun dired-check-process (msg program &rest arguments)
598 ; "Display MSG while running PROGRAM, and check for output.
599 ;Remaining arguments are strings passed as command arguments to PROGRAM.
600 ; On error, insert output
601 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
602 ; Caller can cons up a list of failed args.
603 ;Else returns nil for success."
604 (let (err-buffer err (dir default-directory))
605 (message "%s..." msg)
606 (save-excursion
607 ;; Get a clean buffer for error output:
608 (setq err-buffer (get-buffer-create " *dired-check-process output*"))
609 (set-buffer err-buffer)
610 (erase-buffer)
611 (setq default-directory dir ; caller's default-directory
612 err (not (eq 0 (apply 'process-file program nil t nil arguments))))
613 (if err
614 (progn
615 (dired-log (concat program " " (prin1-to-string arguments) "\n"))
616 (dired-log err-buffer)
617 (or arguments program t))
618 (kill-buffer err-buffer)
619 (message "%s...done" msg)
620 nil))))
622 ;; Commands that delete or redisplay part of the dired buffer.
624 (defun dired-kill-line (&optional arg)
625 (interactive "P")
626 (setq arg (prefix-numeric-value arg))
627 (let (buffer-read-only file)
628 (while (/= 0 arg)
629 (setq file (dired-get-filename nil t))
630 (if (not file)
631 (error "Can only kill file lines")
632 (save-excursion (and file
633 (dired-goto-subdir file)
634 (dired-kill-subdir)))
635 (delete-region (progn (beginning-of-line) (point))
636 (progn (forward-line 1) (point)))
637 (if (> arg 0)
638 (setq arg (1- arg))
639 (setq arg (1+ arg))
640 (forward-line -1))))
641 (dired-move-to-filename)))
643 ;;;###autoload
644 (defun dired-do-kill-lines (&optional arg fmt)
645 "Kill all marked lines (not the files).
646 With a prefix argument, kill that many lines starting with the current line.
647 \(A negative argument kills backward.)
648 If you use this command with a prefix argument to kill the line
649 for a file that is a directory, which you have inserted in the
650 Dired buffer as a subdirectory, then it deletes that subdirectory
651 from the buffer as well.
652 To kill an entire subdirectory \(without killing its line in the
653 parent directory), go to its directory header line and use this
654 command with a prefix argument (the value does not matter)."
655 ;; Returns count of killed lines. FMT="" suppresses message.
656 (interactive "P")
657 (if arg
658 (if (dired-get-subdir)
659 (dired-kill-subdir)
660 (dired-kill-line arg))
661 (save-excursion
662 (goto-char (point-min))
663 (let (buffer-read-only
664 (count 0)
665 (regexp (dired-marker-regexp)))
666 (while (and (not (eobp))
667 (re-search-forward regexp nil t))
668 (setq count (1+ count))
669 (delete-region (progn (beginning-of-line) (point))
670 (progn (forward-line 1) (point))))
671 (or (equal "" fmt)
672 (message (or fmt "Killed %d line%s.") count (dired-plural-s count)))
673 count))))
675 ;;;###end dired-cmd.el
677 ;;; 30K
678 ;;;###begin dired-cp.el
680 (defun dired-compress ()
681 ;; Compress or uncompress the current file.
682 ;; Return nil for success, offending filename else.
683 (let* (buffer-read-only
684 (from-file (dired-get-filename))
685 (new-file (dired-compress-file from-file)))
686 (if new-file
687 (let ((start (point)))
688 ;; Remove any preexisting entry for the name NEW-FILE.
689 (condition-case nil
690 (dired-remove-entry new-file)
691 (error nil))
692 (goto-char start)
693 ;; Now replace the current line with an entry for NEW-FILE.
694 (dired-update-file-line new-file) nil)
695 (dired-log (concat "Failed to compress" from-file))
696 from-file)))
698 (defvar dired-compress-file-suffixes
699 '(("\\.gz\\'" "" "gunzip")
700 ("\\.tgz\\'" ".tar" "gunzip")
701 ("\\.Z\\'" "" "uncompress")
702 ;; For .z, try gunzip. It might be an old gzip file,
703 ;; or it might be from compact? pack? (which?) but gunzip handles both.
704 ("\\.z\\'" "" "gunzip")
705 ("\\.dz\\'" "" "dictunzip")
706 ("\\.tbz\\'" ".tar" "bunzip2")
707 ("\\.bz2\\'" "" "bunzip2")
708 ;; This item controls naming for compression.
709 ("\\.tar\\'" ".tgz" nil))
710 "Control changes in file name suffixes for compression and uncompression.
711 Each element specifies one transformation rule, and has the form:
712 (REGEXP NEW-SUFFIX PROGRAM)
713 The rule applies when the old file name matches REGEXP.
714 The new file name is computed by deleting the part that matches REGEXP
715 (as well as anything after that), then adding NEW-SUFFIX in its place.
716 If PROGRAM is non-nil, the rule is an uncompression rule,
717 and uncompression is done by running PROGRAM.
718 Otherwise, the rule is a compression rule, and compression is done with gzip.")
720 ;;;###autoload
721 (defun dired-compress-file (file)
722 ;; Compress or uncompress FILE.
723 ;; Return the name of the compressed or uncompressed file.
724 ;; Return nil if no change in files.
725 (let ((handler (find-file-name-handler file 'dired-compress-file))
726 suffix newname
727 (suffixes dired-compress-file-suffixes))
728 ;; See if any suffix rule matches this file name.
729 (while suffixes
730 (let (case-fold-search)
731 (if (string-match (car (car suffixes)) file)
732 (setq suffix (car suffixes) suffixes nil))
733 (setq suffixes (cdr suffixes))))
734 ;; If so, compute desired new name.
735 (if suffix
736 (setq newname (concat (substring file 0 (match-beginning 0))
737 (nth 1 suffix))))
738 (cond (handler
739 (funcall handler 'dired-compress-file file))
740 ((file-symlink-p file)
741 nil)
742 ((and suffix (nth 2 suffix))
743 ;; We found an uncompression rule.
744 (if (not (dired-check-process (concat "Uncompressing " file)
745 (nth 2 suffix) file))
746 newname))
748 ;;; We don't recognize the file as compressed, so compress it.
749 ;;; Try gzip; if we don't have that, use compress.
750 (condition-case nil
751 (let ((out-name (concat file ".gz")))
752 (and (or (not (file-exists-p out-name))
753 (y-or-n-p
754 (format "File %s already exists. Really compress? "
755 out-name)))
756 (not (dired-check-process (concat "Compressing " file)
757 "gzip" "-f" file))
758 (or (file-exists-p out-name)
759 (setq out-name (concat file ".z")))
760 ;; Rename the compressed file to NEWNAME
761 ;; if it hasn't got that name already.
762 (if (and newname (not (equal newname out-name)))
763 (progn
764 (rename-file out-name newname t)
765 newname)
766 out-name)))
767 (file-error
768 (if (not (dired-check-process (concat "Compressing " file)
769 "compress" "-f" file))
770 ;; Don't use NEWNAME with `compress'.
771 (concat file ".Z"))))))))
773 (defun dired-mark-confirm (op-symbol arg)
774 ;; Request confirmation from the user that the operation described
775 ;; by OP-SYMBOL is to be performed on the marked files.
776 ;; Confirmation consists in a y-or-n question with a file list
777 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
778 ;; The files used are determined by ARG (as in dired-get-marked-files).
779 (or (eq dired-no-confirm t)
780 (memq op-symbol dired-no-confirm)
781 ;; Pass t for DISTINGUISH-ONE-MARKED so that a single file which
782 ;; is marked pops up a window. That will help the user see
783 ;; it isn't the current line file.
784 (let ((files (dired-get-marked-files t arg nil t))
785 (string (if (eq op-symbol 'compress) "Compress or uncompress"
786 (capitalize (symbol-name op-symbol)))))
787 (dired-mark-pop-up nil op-symbol files (function y-or-n-p)
788 (concat string " "
789 (dired-mark-prompt arg files) "? ")))))
791 (defun dired-map-over-marks-check (fun arg op-symbol &optional show-progress)
792 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
793 ; and display failures.
795 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
796 ; the short form of the filename) for a failure and probably logs a
797 ; detailed error explanation using function `dired-log'.
799 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
800 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
801 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
802 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
804 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
805 (if (dired-mark-confirm op-symbol arg)
806 (let* ((total-list;; all of FUN's return values
807 (dired-map-over-marks (funcall fun) arg show-progress))
808 (total (length total-list))
809 (failures (delq nil total-list))
810 (count (length failures))
811 (string (if (eq op-symbol 'compress) "Compress or uncompress"
812 (capitalize (symbol-name op-symbol)))))
813 (if (not failures)
814 (message "%s: %d file%s."
815 string total (dired-plural-s total))
816 ;; end this bunch of errors:
817 (dired-log-summary
818 (format "Failed to %s %d of %d file%s"
819 (downcase string) count total (dired-plural-s total))
820 failures)))))
822 (defvar dired-query-alist
823 '((?\y . y) (?\040 . y) ; `y' or SPC means accept once
824 (?n . n) (?\177 . n) ; `n' or DEL skips once
825 (?! . yes) ; `!' accepts rest
826 (?q . no) (?\e . no) ; `q' or ESC skips rest
827 ;; None of these keys quit - use C-g for that.
830 ;;;###autoload
831 (defun dired-query (qs-var qs-prompt &rest qs-args)
832 ;; Query user and return nil or t.
833 ;; Store answer in symbol VAR (which must initially be bound to nil).
834 ;; Format PROMPT with ARGS.
835 ;; Binding variable help-form will help the user who types the help key.
836 (let* ((char (symbol-value qs-var))
837 (action (cdr (assoc char dired-query-alist))))
838 (cond ((eq 'yes action)
839 t) ; accept, and don't ask again
840 ((eq 'no action)
841 nil) ; skip, and don't ask again
842 (t;; no lasting effects from last time we asked - ask now
843 (let ((qprompt (concat qs-prompt
844 (if help-form
845 (format " [Type yn!q or %s] "
846 (key-description
847 (char-to-string help-char)))
848 " [Type y, n, q or !] ")))
849 result elt)
850 ;; Actually it looks nicer without cursor-in-echo-area - you can
851 ;; look at the dired buffer instead of at the prompt to decide.
852 (apply 'message qprompt qs-args)
853 (setq char (set qs-var (read-char)))
854 (while (not (setq elt (assoc char dired-query-alist)))
855 (message "Invalid char - type %c for help." help-char)
856 (ding)
857 (sit-for 1)
858 (apply 'message qprompt qs-args)
859 (setq char (set qs-var (read-char))))
860 ;; Display the question with the answer.
861 (message "%s" (concat (apply 'format qprompt qs-args)
862 (char-to-string char)))
863 (memq (cdr elt) '(t y yes)))))))
865 ;;;###autoload
866 (defun dired-do-compress (&optional arg)
867 "Compress or uncompress marked (or next ARG) files."
868 (interactive "P")
869 (dired-map-over-marks-check (function dired-compress) arg 'compress t))
871 ;; Commands for Emacs Lisp files - load and byte compile
873 (defun dired-byte-compile ()
874 ;; Return nil for success, offending file name else.
875 (let* ((filename (dired-get-filename))
876 elc-file buffer-read-only failure)
877 (condition-case err
878 (save-excursion (byte-compile-file filename))
879 (error
880 (setq failure err)))
881 (setq elc-file (byte-compile-dest-file filename))
882 (or (file-exists-p elc-file)
883 (setq failure t))
884 (if failure
885 (progn
886 (dired-log "Byte compile error for %s:\n%s\n" filename failure)
887 (dired-make-relative filename))
888 (dired-remove-file elc-file)
889 (forward-line) ; insert .elc after its .el file
890 (dired-add-file elc-file)
891 nil)))
893 ;;;###autoload
894 (defun dired-do-byte-compile (&optional arg)
895 "Byte compile marked (or next ARG) Emacs Lisp files."
896 (interactive "P")
897 (dired-map-over-marks-check (function dired-byte-compile) arg 'byte-compile t))
899 (defun dired-load ()
900 ;; Return nil for success, offending file name else.
901 (let ((file (dired-get-filename)) failure)
902 (condition-case err
903 (load file nil nil t)
904 (error (setq failure err)))
905 (if (not failure)
907 (dired-log "Load error for %s:\n%s\n" file failure)
908 (dired-make-relative file))))
910 ;;;###autoload
911 (defun dired-do-load (&optional arg)
912 "Load the marked (or next ARG) Emacs Lisp files."
913 (interactive "P")
914 (dired-map-over-marks-check (function dired-load) arg 'load t))
916 ;;;###autoload
917 (defun dired-do-redisplay (&optional arg test-for-subdir)
918 "Redisplay all marked (or next ARG) files.
919 If on a subdir line, redisplay that subdirectory. In that case,
920 a prefix arg lets you edit the `ls' switches used for the new listing.
922 Dired remembers switches specified with a prefix arg, so that reverting
923 the buffer will not reset them. However, using `dired-undo' to re-insert
924 or delete subdirectories can bypass this machinery. Hence, you sometimes
925 may have to reset some subdirectory switches after a `dired-undo'.
926 You can reset all subdirectory switches to the default using
927 \\<dired-mode-map>\\[dired-reset-subdir-switches].
928 See Info node `(emacs)Subdir switches' for more details."
929 ;; Moves point if the next ARG files are redisplayed.
930 (interactive "P\np")
931 (if (and test-for-subdir (dired-get-subdir))
932 (let* ((dir (dired-get-subdir))
933 (switches (cdr (assoc-string dir dired-switches-alist))))
934 (dired-insert-subdir
936 (when arg
937 (read-string "Switches for listing: "
938 (or switches
939 dired-subdir-switches
940 dired-actual-switches)))))
941 (message "Redisplaying...")
942 ;; message much faster than making dired-map-over-marks show progress
943 (dired-uncache
944 (if (consp dired-directory) (car dired-directory) dired-directory))
945 (dired-map-over-marks (let ((fname (dired-get-filename)))
946 (message "Redisplaying... %s" fname)
947 (dired-update-file-line fname))
948 arg)
949 (dired-move-to-filename)
950 (message "Redisplaying...done")))
952 (defun dired-reset-subdir-switches ()
953 "Set `dired-switches-alist' to nil and revert dired buffer."
954 (interactive)
955 (setq dired-switches-alist nil)
956 (revert-buffer))
958 (defun dired-update-file-line (file)
959 ;; Delete the current line, and insert an entry for FILE.
960 ;; If FILE is nil, then just delete the current line.
961 ;; Keeps any marks that may be present in column one (doing this
962 ;; here is faster than with dired-add-entry's optional arg).
963 ;; Does not update other dired buffers. Use dired-relist-entry for that.
964 (beginning-of-line)
965 (let ((char (following-char)) (opoint (point))
966 (buffer-read-only))
967 (delete-region (point) (progn (forward-line 1) (point)))
968 (if file
969 (progn
970 (dired-add-entry file nil t)
971 ;; Replace space by old marker without moving point.
972 ;; Faster than goto+insdel inside a save-excursion?
973 (subst-char-in-region opoint (1+ opoint) ?\040 char))))
974 (dired-move-to-filename))
976 ;;;###autoload
977 (defun dired-add-file (filename &optional marker-char)
978 (dired-fun-in-all-buffers
979 (file-name-directory filename) (file-name-nondirectory filename)
980 (function dired-add-entry) filename marker-char))
982 (defun dired-add-entry (filename &optional marker-char relative)
983 ;; Add a new entry for FILENAME, optionally marking it
984 ;; with MARKER-CHAR (a character, else dired-marker-char is used).
985 ;; Note that this adds the entry `out of order' if files sorted by
986 ;; time, etc.
987 ;; At least this version inserts in the right subdirectory (if present).
988 ;; And it skips "." or ".." (see `dired-trivial-filenames').
989 ;; Hidden subdirs are exposed if a file is added there.
990 (setq filename (directory-file-name filename))
991 ;; Entry is always for files, even if they happen to also be directories
992 (let* ((opoint (point))
993 (cur-dir (dired-current-directory))
994 (orig-file-name filename)
995 (directory (if relative cur-dir (file-name-directory filename)))
996 reason)
997 (setq filename
998 (if relative
999 (file-relative-name filename directory)
1000 (file-name-nondirectory filename))
1001 reason
1002 (catch 'not-found
1003 (if (string= directory cur-dir)
1004 (progn
1005 (skip-chars-forward "^\r\n")
1006 (if (eq (following-char) ?\r)
1007 (dired-unhide-subdir))
1008 ;; We are already where we should be, except when
1009 ;; point is before the subdir line or its total line.
1010 (let ((p (dired-after-subdir-garbage cur-dir)))
1011 (if (< (point) p)
1012 (goto-char p))))
1013 ;; else try to find correct place to insert
1014 (if (dired-goto-subdir directory)
1015 (progn ;; unhide if necessary
1016 (if (looking-at "\r") ;; point is at end of subdir line
1017 (dired-unhide-subdir))
1018 ;; found - skip subdir and `total' line
1019 ;; and uninteresting files like . and ..
1020 ;; This better not moves into the next subdir!
1021 (dired-goto-next-nontrivial-file))
1022 ;; not found
1023 (throw 'not-found "Subdir not found")))
1024 (let (buffer-read-only opoint)
1025 (beginning-of-line)
1026 (setq opoint (point))
1027 ;; Don't expand `.'. Show just the file name within directory.
1028 (let ((default-directory directory))
1029 (dired-insert-directory directory
1030 (concat dired-actual-switches "d")
1031 (list filename)))
1032 (goto-char opoint)
1033 ;; Put in desired marker char.
1034 (when marker-char
1035 (let ((dired-marker-char
1036 (if (integerp marker-char) marker-char dired-marker-char)))
1037 (dired-mark nil)))
1038 ;; Compensate for a bug in ange-ftp.
1039 ;; It inserts the file's absolute name, rather than
1040 ;; the relative one. That may be hard to fix since it
1041 ;; is probably controlled by something in ftp.
1042 (goto-char opoint)
1043 (let ((inserted-name (dired-get-filename 'verbatim)))
1044 (if (file-name-directory inserted-name)
1045 (let (props)
1046 (end-of-line)
1047 (forward-char (- (length inserted-name)))
1048 (setq props (text-properties-at (point)))
1049 (delete-char (length inserted-name))
1050 (let ((pt (point)))
1051 (insert filename)
1052 (set-text-properties pt (point) props))
1053 (forward-char 1))
1054 (forward-line 1)))
1055 (forward-line -1)
1056 (if dired-after-readin-hook ;; the subdir-alist is not affected...
1057 (save-excursion ;; ...so we can run it right now:
1058 (save-restriction
1059 (beginning-of-line)
1060 (narrow-to-region (point) (save-excursion
1061 (forward-line 1) (point)))
1062 (run-hooks 'dired-after-readin-hook))))
1063 (dired-move-to-filename))
1064 ;; return nil if all went well
1065 nil))
1066 (if reason ; don't move away on failure
1067 (goto-char opoint))
1068 (not reason))) ; return t on success, nil else
1070 (defun dired-after-subdir-garbage (dir)
1071 ;; Return pos of first file line of DIR, skipping header and total
1072 ;; or wildcard lines.
1073 ;; Important: never moves into the next subdir.
1074 ;; DIR is assumed to be unhidden.
1075 ;; Will probably be redefined for VMS etc.
1076 (save-excursion
1077 (or (dired-goto-subdir dir) (error "This cannot happen"))
1078 (forward-line 1)
1079 (while (and (not (eolp)) ; don't cross subdir boundary
1080 (not (dired-move-to-filename)))
1081 (forward-line 1))
1082 (point)))
1084 ;;;###autoload
1085 (defun dired-remove-file (file)
1086 (dired-fun-in-all-buffers
1087 (file-name-directory file) (file-name-nondirectory file)
1088 (function dired-remove-entry) file))
1090 (defun dired-remove-entry (file)
1091 (save-excursion
1092 (and (dired-goto-file file)
1093 (let (buffer-read-only)
1094 (delete-region (progn (beginning-of-line) (point))
1095 (save-excursion (forward-line 1) (point)))))))
1097 ;;;###autoload
1098 (defun dired-relist-file (file)
1099 "Create or update the line for FILE in all Dired buffers it would belong in."
1100 (dired-fun-in-all-buffers (file-name-directory file)
1101 (file-name-nondirectory file)
1102 (function dired-relist-entry) file))
1104 (defun dired-relist-entry (file)
1105 ;; Relist the line for FILE, or just add it if it did not exist.
1106 ;; FILE must be an absolute file name.
1107 (let (buffer-read-only marker)
1108 ;; If cursor is already on FILE's line delete-region will cause
1109 ;; save-excursion to fail because of floating makers,
1110 ;; moving point to beginning of line. Sigh.
1111 (save-excursion
1112 (and (dired-goto-file file)
1113 (delete-region (progn (beginning-of-line)
1114 (setq marker (following-char))
1115 (point))
1116 (save-excursion (forward-line 1) (point))))
1117 (setq file (directory-file-name file))
1118 (dired-add-entry file (if (eq ?\040 marker) nil marker)))))
1120 ;;; Copy, move/rename, making hard and symbolic links
1122 (defcustom dired-backup-overwrite nil
1123 "*Non-nil if Dired should ask about making backups before overwriting files.
1124 Special value `always' suppresses confirmation."
1125 :type '(choice (const :tag "off" nil)
1126 (const :tag "suppress" always)
1127 (other :tag "ask" t))
1128 :group 'dired)
1130 (defvar dired-overwrite-confirmed)
1132 (defun dired-handle-overwrite (to)
1133 ;; Save old version of file TO that is to be overwritten.
1134 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1135 ;; from dired-create-files.
1136 (let (backup)
1137 (if (and dired-backup-overwrite
1138 dired-overwrite-confirmed
1139 (setq backup (car (find-backup-file-name to)))
1140 (or (eq 'always dired-backup-overwrite)
1141 (dired-query 'overwrite-backup-query
1142 "Make backup for existing file `%s'? "
1143 to)))
1144 (progn
1145 (rename-file to backup 0) ; confirm overwrite of old backup
1146 (dired-relist-entry backup)))))
1148 ;;;###autoload
1149 (defun dired-copy-file (from to ok-flag)
1150 (dired-handle-overwrite to)
1151 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1152 dired-recursive-copies))
1154 (defun dired-copy-file-recursive (from to ok-flag &optional
1155 preserve-time top recursive)
1156 (let ((attrs (file-attributes from))
1157 dirfailed)
1158 (if (and recursive
1159 (eq t (car attrs))
1160 (or (eq recursive 'always)
1161 (yes-or-no-p (format "Recursive copies of %s? " from))))
1162 ;; This is a directory.
1163 (let ((mode (file-modes from))
1164 (files
1165 (condition-case err
1166 (directory-files from nil dired-re-no-dot)
1167 (file-error
1168 (push (dired-make-relative from)
1169 dired-create-files-failures)
1170 (dired-log "Copying error for %s:\n%s\n" from err)
1171 (setq dirfailed t)
1172 nil))))
1173 (if (eq recursive 'top) (setq recursive 'always)) ; Don't ask any more.
1174 (unless dirfailed
1175 (if (file-exists-p to)
1176 (or top (dired-handle-overwrite to))
1177 (condition-case err
1178 (progn
1179 (make-directory to)
1180 (set-file-modes to #o700))
1181 (file-error
1182 (push (dired-make-relative from)
1183 dired-create-files-failures)
1184 (setq files nil)
1185 (dired-log "Copying error for %s:\n%s\n" from err)))))
1186 (dolist (file files)
1187 (let ((thisfrom (expand-file-name file from))
1188 (thisto (expand-file-name file to)))
1189 ;; Catch errors copying within a directory,
1190 ;; and report them through the dired log mechanism
1191 ;; just as our caller will do for the top level files.
1192 (condition-case err
1193 (dired-copy-file-recursive
1194 thisfrom thisto
1195 ok-flag preserve-time nil recursive)
1196 (file-error
1197 (push (dired-make-relative thisfrom)
1198 dired-create-files-failures)
1199 (dired-log "Copying error for %s:\n%s\n" thisfrom err)))))
1200 (when (file-directory-p to)
1201 (set-file-modes to mode)))
1202 ;; Not a directory.
1203 (or top (dired-handle-overwrite to))
1204 (condition-case err
1205 (if (stringp (car attrs))
1206 ;; It is a symlink
1207 (make-symbolic-link (car attrs) to ok-flag)
1208 (copy-file from to ok-flag dired-copy-preserve-time))
1209 (file-date-error
1210 (push (dired-make-relative from)
1211 dired-create-files-failures)
1212 (dired-log "Can't set date on %s:\n%s\n" from err))))))
1214 ;;;###autoload
1215 (defun dired-rename-file (file newname ok-if-already-exists)
1216 (dired-handle-overwrite newname)
1217 (rename-file file newname ok-if-already-exists) ; error is caught in -create-files
1218 ;; Silently rename the visited file of any buffer visiting this file.
1219 (and (get-file-buffer file)
1220 (with-current-buffer (get-file-buffer file)
1221 (set-visited-file-name newname nil t)))
1222 (dired-remove-file file)
1223 ;; See if it's an inserted subdir, and rename that, too.
1224 (dired-rename-subdir file newname))
1226 (defun dired-rename-subdir (from-dir to-dir)
1227 (setq from-dir (file-name-as-directory from-dir)
1228 to-dir (file-name-as-directory to-dir))
1229 (dired-fun-in-all-buffers from-dir nil
1230 (function dired-rename-subdir-1) from-dir to-dir)
1231 ;; Update visited file name of all affected buffers
1232 (let ((expanded-from-dir (expand-file-name from-dir))
1233 (blist (buffer-list)))
1234 (while blist
1235 (save-excursion
1236 (set-buffer (car blist))
1237 (if (and buffer-file-name
1238 (dired-in-this-tree buffer-file-name expanded-from-dir))
1239 (let ((modflag (buffer-modified-p))
1240 (to-file (dired-replace-in-string
1241 (concat "^" (regexp-quote from-dir))
1242 to-dir
1243 buffer-file-name)))
1244 (set-visited-file-name to-file)
1245 (set-buffer-modified-p modflag))))
1246 (setq blist (cdr blist)))))
1248 (defun dired-rename-subdir-1 (dir to)
1249 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1250 ;; one of its subdirectories is expanded in this buffer.
1251 (let ((expanded-dir (expand-file-name dir))
1252 (alist dired-subdir-alist)
1253 (elt nil))
1254 (while alist
1255 (setq elt (car alist)
1256 alist (cdr alist))
1257 (if (dired-in-this-tree (car elt) expanded-dir)
1258 ;; ELT's subdir is affected by the rename
1259 (dired-rename-subdir-2 elt dir to)))
1260 (if (equal dir default-directory)
1261 ;; if top level directory was renamed, lots of things have to be
1262 ;; updated:
1263 (progn
1264 (dired-unadvertise dir) ; we no longer dired DIR...
1265 (setq default-directory to
1266 dired-directory (expand-file-name;; this is correct
1267 ;; with and without wildcards
1268 (file-name-nondirectory dired-directory)
1269 to))
1270 (let ((new-name (file-name-nondirectory
1271 (directory-file-name dired-directory))))
1272 ;; try to rename buffer, but just leave old name if new
1273 ;; name would already exist (don't try appending "<%d>")
1274 (or (get-buffer new-name)
1275 (rename-buffer new-name)))
1276 ;; ... we dired TO now:
1277 (dired-advertise)))))
1279 (defun dired-rename-subdir-2 (elt dir to)
1280 ;; Update the headerline and dired-subdir-alist element, as well as
1281 ;; dired-switches-alist element, of directory described by
1282 ;; alist-element ELT to reflect the moving of DIR to TO. Thus, ELT
1283 ;; describes either DIR itself or a subdir of DIR.
1284 (save-excursion
1285 (let ((regexp (regexp-quote (directory-file-name dir)))
1286 (newtext (directory-file-name to))
1287 buffer-read-only)
1288 (goto-char (dired-get-subdir-min elt))
1289 ;; Update subdir headerline in buffer
1290 (if (not (looking-at dired-subdir-regexp))
1291 (error "%s not found where expected - dired-subdir-alist broken?"
1292 dir)
1293 (goto-char (match-beginning 1))
1294 (if (re-search-forward regexp (match-end 1) t)
1295 (replace-match newtext t t)
1296 (error "Expected to find `%s' in headerline of %s" dir (car elt))))
1297 ;; Update buffer-local dired-subdir-alist and dired-switches-alist
1298 (let ((cons (assoc-string (car elt) dired-switches-alist))
1299 (cur-dir (dired-normalize-subdir
1300 (dired-replace-in-string regexp newtext (car elt)))))
1301 (setcar elt cur-dir)
1302 (when cons (setcar cons cur-dir))))))
1304 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1305 (defun dired-create-files (file-creator operation fn-list name-constructor
1306 &optional marker-char)
1308 ;; Create a new file for each from a list of existing files. The user
1309 ;; is queried, dired buffers are updated, and at the end a success or
1310 ;; failure message is displayed
1312 ;; FILE-CREATOR must accept three args: oldfile newfile ok-if-already-exists
1314 ;; It is called for each file and must create newfile, the entry of
1315 ;; which will be added. The user will be queried if the file already
1316 ;; exists. If oldfile is removed by FILE-CREATOR (i.e, it is a
1317 ;; rename), it is FILE-CREATOR's responsibility to update dired
1318 ;; buffers. FILE-CREATOR must abort by signaling a file-error if it
1319 ;; could not create newfile. The error is caught and logged.
1321 ;; OPERATION (a capitalized string, e.g. `Copy') describes the
1322 ;; operation performed. It is used for error logging.
1324 ;; FN-LIST is the list of files to copy (full absolute file names).
1326 ;; NAME-CONSTRUCTOR returns a newfile for every oldfile, or nil to
1327 ;; skip. If it skips files for other reasons than a direct user
1328 ;; query, it is supposed to tell why (using dired-log).
1330 ;; Optional MARKER-CHAR is a character with which to mark every
1331 ;; newfile's entry, or t to use the current marker character if the
1332 ;; oldfile was marked.
1334 (let (dired-create-files-failures failures
1335 skipped (success-count 0) (total (length fn-list)))
1336 (let (to overwrite-query
1337 overwrite-backup-query) ; for dired-handle-overwrite
1338 (mapc
1339 (function
1340 (lambda (from)
1341 (setq to (funcall name-constructor from))
1342 (if (equal to from)
1343 (progn
1344 (setq to nil)
1345 (dired-log "Cannot %s to same file: %s\n"
1346 (downcase operation) from)))
1347 (if (not to)
1348 (setq skipped (cons (dired-make-relative from) skipped))
1349 (let* ((overwrite (file-exists-p to))
1350 (dired-overwrite-confirmed ; for dired-handle-overwrite
1351 (and overwrite
1352 (let ((help-form '(format "\
1353 Type SPC or `y' to overwrite file `%s',
1354 DEL or `n' to skip to next,
1355 ESC or `q' to not overwrite any of the remaining files,
1356 `!' to overwrite all remaining files with no more questions." to)))
1357 (dired-query 'overwrite-query
1358 "Overwrite `%s'?" to))))
1359 ;; must determine if FROM is marked before file-creator
1360 ;; gets a chance to delete it (in case of a move).
1361 (actual-marker-char
1362 (cond ((integerp marker-char) marker-char)
1363 (marker-char (dired-file-marker from)) ; slow
1364 (t nil))))
1365 (condition-case err
1366 (progn
1367 (funcall file-creator from to dired-overwrite-confirmed)
1368 (if overwrite
1369 ;; If we get here, file-creator hasn't been aborted
1370 ;; and the old entry (if any) has to be deleted
1371 ;; before adding the new entry.
1372 (dired-remove-file to))
1373 (setq success-count (1+ success-count))
1374 (message "%s: %d of %d" operation success-count total)
1375 (dired-add-file to actual-marker-char))
1376 (file-error ; FILE-CREATOR aborted
1377 (progn
1378 (push (dired-make-relative from)
1379 failures)
1380 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1381 operation from to err))))))))
1382 fn-list))
1383 (cond
1384 (dired-create-files-failures
1385 (setq failures (nconc failures dired-create-files-failures))
1386 (dired-log-summary
1387 (format "%s failed for %d file%s in %d requests"
1388 operation (length failures)
1389 (dired-plural-s (length failures))
1390 total)
1391 failures))
1392 (failures
1393 (dired-log-summary
1394 (format "%s failed for %d of %d file%s"
1395 operation (length failures)
1396 total (dired-plural-s total))
1397 failures))
1398 (skipped
1399 (dired-log-summary
1400 (format "%s: %d of %d file%s skipped"
1401 operation (length skipped) total
1402 (dired-plural-s total))
1403 skipped))
1405 (message "%s: %s file%s"
1406 operation success-count (dired-plural-s success-count)))))
1407 (dired-move-to-filename))
1409 (defun dired-do-create-files (op-symbol file-creator operation arg
1410 &optional marker-char op1
1411 how-to)
1412 "Create a new file for each marked file.
1413 Prompts user for target, which is a directory in which to create
1414 the new files. Target may be a plain file if only one marked
1415 file exists. The way the default for the target directory is
1416 computed depends on the value of `dired-dwim-target-directory'.
1417 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1418 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1419 FILE-CREATOR and OPERATION as in `dired-create-files'.
1420 ARG as in `dired-get-marked-files'.
1421 Optional arg MARKER-CHAR as in `dired-create-files'.
1422 Optional arg OP1 is an alternate form for OPERATION if there is
1423 only one file.
1424 Optional arg HOW-TO is used to set the value of the into-dir variable
1425 which determines how to treat target.
1426 If into-dir is set to nil then target is not regarded as a directory,
1427 there must be exactly one marked file, else error.
1428 Else if into-dir is set to a list, then target is a generalized
1429 directory (e.g. some sort of archive). The first element of into-dir
1430 must be a function with at least four arguments:
1431 operation as OPERATION above.
1432 rfn-list a list of the relative names for the marked files.
1433 fn-list a list of the absolute names for the marked files.
1434 target.
1435 The rest of into-dir are optional arguments.
1436 Else into-dir is not a list. Target is a directory.
1437 The marked file(s) are created inside the target directory.
1439 If HOW-TO is not given (or nil), then into-dir is set to true if
1440 target is a directory and otherwise to nil.
1441 Else if HOW-TO is t, then into-dir is set to nil.
1442 Else HOW-TO is assumed to be a function of one argument, target,
1443 that looks at target and returns a value for the into-dir
1444 variable. The function `dired-into-dir-with-symlinks' is provided
1445 for the case (common when creating symlinks) that symbolic
1446 links to directories are not to be considered as directories
1447 (as `file-directory-p' would if HOW-TO had been nil)."
1448 (or op1 (setq op1 operation))
1449 (let* ((fn-list (dired-get-marked-files nil arg))
1450 (rfn-list (mapcar (function dired-make-relative) fn-list))
1451 (dired-one-file ; fluid variable inside dired-create-files
1452 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1453 (target-dir (dired-dwim-target-directory))
1454 (default (and dired-one-file
1455 (expand-file-name (file-name-nondirectory (car fn-list))
1456 target-dir)))
1457 (target (expand-file-name ; fluid variable inside dired-create-files
1458 (dired-mark-read-file-name
1459 (concat (if dired-one-file op1 operation) " %s to: ")
1460 target-dir op-symbol arg rfn-list default)))
1461 (into-dir (cond ((null how-to)
1462 ;; Allow DOS/Windows users to change the letter
1463 ;; case of a directory. If we don't test these
1464 ;; conditions up front, file-directory-p below
1465 ;; will return t because the filesystem is
1466 ;; case-insensitive, and Emacs will try to move
1467 ;; foo -> foo/foo, which fails.
1468 (if (and (memq system-type '(ms-dos windows-nt cygwin))
1469 (eq op-symbol 'move)
1470 dired-one-file
1471 (string= (downcase
1472 (expand-file-name (car fn-list)))
1473 (downcase
1474 (expand-file-name target)))
1475 (not (string=
1476 (file-name-nondirectory (car fn-list))
1477 (file-name-nondirectory target))))
1479 (file-directory-p target)))
1480 ((eq how-to t) nil)
1481 (t (funcall how-to target)))))
1482 (if (and (consp into-dir) (functionp (car into-dir)))
1483 (apply (car into-dir) operation rfn-list fn-list target (cdr into-dir))
1484 (if (not (or dired-one-file into-dir))
1485 (error "Marked %s: target must be a directory: %s" operation target))
1486 ;; rename-file bombs when moving directories unless we do this:
1487 (or into-dir (setq target (directory-file-name target)))
1488 (dired-create-files
1489 file-creator operation fn-list
1490 (if into-dir ; target is a directory
1491 ;; This function uses fluid variable target when called
1492 ;; inside dired-create-files:
1493 (function
1494 (lambda (from)
1495 (expand-file-name (file-name-nondirectory from) target)))
1496 (function (lambda (from) target)))
1497 marker-char))))
1499 ;; Read arguments for a marked-files command that wants a file name,
1500 ;; perhaps popping up the list of marked files.
1501 ;; ARG is the prefix arg and indicates whether the files came from
1502 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1503 ;; If the current file was used, the list has but one element and ARG
1504 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1505 ;; DEFAULT is the default value to return if the user just hits RET;
1506 ;; if it is omitted or nil, then the name of the directory is used.
1508 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1509 &optional default)
1510 (dired-mark-pop-up
1511 nil op-symbol files
1512 (function read-file-name)
1513 (format prompt (dired-mark-prompt arg files)) dir default))
1515 (defun dired-dwim-target-directory ()
1516 ;; Try to guess which target directory the user may want.
1517 ;; If there is a dired buffer displayed in the next window, use
1518 ;; its current subdir, else use current subdir of this dired buffer.
1519 (let ((this-dir (and (eq major-mode 'dired-mode)
1520 (dired-current-directory))))
1521 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1522 (if dired-dwim-target
1523 (let* ((other-buf (window-buffer (next-window)))
1524 (other-dir (save-excursion
1525 (set-buffer other-buf)
1526 (and (eq major-mode 'dired-mode)
1527 (dired-current-directory)))))
1528 (or other-dir this-dir))
1529 this-dir)))
1531 ;;;###autoload
1532 (defun dired-create-directory (directory)
1533 "Create a directory called DIRECTORY."
1534 (interactive
1535 (list (read-file-name "Create directory: " (dired-current-directory))))
1536 (let ((expanded (directory-file-name (expand-file-name directory))))
1537 (make-directory expanded)
1538 (dired-add-file expanded)
1539 (dired-move-to-filename)))
1541 (defun dired-into-dir-with-symlinks (target)
1542 (and (file-directory-p target)
1543 (not (file-symlink-p target))))
1544 ;; This may not always be what you want, especially if target is your
1545 ;; home directory and it happens to be a symbolic link, as is often the
1546 ;; case with NFS and automounters. Or if you want to make symlinks
1547 ;; into directories that themselves are only symlinks, also quite
1548 ;; common.
1550 ;; So we don't use this function as value for HOW-TO in
1551 ;; dired-do-symlink, which has the minor disadvantage of
1552 ;; making links *into* a symlinked-dir, when you really wanted to
1553 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1554 ;; just have to remove that symlink by hand before making your marked
1555 ;; symlinks.
1557 (defvar dired-copy-how-to-fn nil
1558 "nil or a function used by `dired-do-copy' to determine target.
1559 See HOW-TO argument for `dired-do-create-files'.")
1561 ;;;###autoload
1562 (defun dired-do-copy (&optional arg)
1563 "Copy all marked (or next ARG) files, or copy the current file.
1564 This normally preserves the last-modified date when copying.
1565 When operating on just the current file, you specify the new name.
1566 When operating on multiple or marked files, you specify a directory,
1567 and new copies of these files are made in that directory
1568 with the same names that the files currently have. The default
1569 suggested for the target directory depends on the value of
1570 `dired-dwim-target', which see.
1572 This command copies symbolic links by creating new ones,
1573 like `cp -d'."
1574 (interactive "P")
1575 (let ((dired-recursive-copies dired-recursive-copies))
1576 (dired-do-create-files 'copy (function dired-copy-file)
1577 "Copy"
1578 arg dired-keep-marker-copy
1579 nil dired-copy-how-to-fn)))
1581 ;;;###autoload
1582 (defun dired-do-symlink (&optional arg)
1583 "Make symbolic links to current file or all marked (or next ARG) files.
1584 When operating on just the current file, you specify the new name.
1585 When operating on multiple or marked files, you specify a directory
1586 and new symbolic links are made in that directory
1587 with the same names that the files currently have. The default
1588 suggested for the target directory depends on the value of
1589 `dired-dwim-target', which see.
1591 For relative symlinks, use \\[dired-do-relsymlink]."
1592 (interactive "P")
1593 (dired-do-create-files 'symlink (function make-symbolic-link)
1594 "Symlink" arg dired-keep-marker-symlink))
1596 ;;;###autoload
1597 (defun dired-do-hardlink (&optional arg)
1598 "Add names (hard links) current file or all marked (or next ARG) files.
1599 When operating on just the current file, you specify the new name.
1600 When operating on multiple or marked files, you specify a directory
1601 and new hard links are made in that directory
1602 with the same names that the files currently have. The default
1603 suggested for the target directory depends on the value of
1604 `dired-dwim-target', which see."
1605 (interactive "P")
1606 (dired-do-create-files 'hardlink (function dired-hardlink)
1607 "Hardlink" arg dired-keep-marker-hardlink))
1609 (defun dired-hardlink (file newname &optional ok-if-already-exists)
1610 (dired-handle-overwrite newname)
1611 ;; error is caught in -create-files
1612 (add-name-to-file file newname ok-if-already-exists)
1613 ;; Update the link count
1614 (dired-relist-file file))
1616 ;;;###autoload
1617 (defun dired-do-rename (&optional arg)
1618 "Rename current file or all marked (or next ARG) files.
1619 When renaming just the current file, you specify the new name.
1620 When renaming multiple or marked files, you specify a directory.
1621 This command also renames any buffers that are visiting the files.
1622 The default suggested for the target directory depends on the value
1623 of `dired-dwim-target', which see."
1624 (interactive "P")
1625 (dired-do-create-files 'move (function dired-rename-file)
1626 "Move" arg dired-keep-marker-rename "Rename"))
1627 ;;;###end dired-cp.el
1629 ;;; 5K
1630 ;;;###begin dired-re.el
1631 (defun dired-do-create-files-regexp
1632 (file-creator operation arg regexp newname &optional whole-name marker-char)
1633 ;; Create a new file for each marked file using regexps.
1634 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1635 ;; ARG as in dired-get-marked-files.
1636 ;; Matches each marked file against REGEXP and constructs the new
1637 ;; filename from NEWNAME (like in function replace-match).
1638 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1639 ;; instead of only the non-directory part of the file.
1640 ;; Optional arg MARKER-CHAR as in dired-create-files.
1641 (let* ((fn-list (dired-get-marked-files nil arg))
1642 (fn-count (length fn-list))
1643 (operation-prompt (concat operation " `%s' to `%s'?"))
1644 (rename-regexp-help-form (format "\
1645 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1646 `!' to %s all remaining matches with no more questions."
1647 (downcase operation)
1648 (downcase operation)))
1649 (regexp-name-constructor
1650 ;; Function to construct new filename using REGEXP and NEWNAME:
1651 (if whole-name ; easy (but rare) case
1652 (function
1653 (lambda (from)
1654 (let ((to (dired-string-replace-match regexp from newname))
1655 ;; must bind help-form directly around call to
1656 ;; dired-query
1657 (help-form rename-regexp-help-form))
1658 (if to
1659 (and (dired-query 'rename-regexp-query
1660 operation-prompt
1661 from
1664 (dired-log "%s: %s did not match regexp %s\n"
1665 operation from regexp)))))
1666 ;; not whole-name, replace non-directory part only
1667 (function
1668 (lambda (from)
1669 (let* ((new (dired-string-replace-match
1670 regexp (file-name-nondirectory from) newname))
1671 (to (and new ; nil means there was no match
1672 (expand-file-name new
1673 (file-name-directory from))))
1674 (help-form rename-regexp-help-form))
1675 (if to
1676 (and (dired-query 'rename-regexp-query
1677 operation-prompt
1678 (dired-make-relative from)
1679 (dired-make-relative to))
1681 (dired-log "%s: %s did not match regexp %s\n"
1682 operation (file-name-nondirectory from) regexp)))))))
1683 rename-regexp-query)
1684 (dired-create-files
1685 file-creator operation fn-list regexp-name-constructor marker-char)))
1687 (defun dired-mark-read-regexp (operation)
1688 ;; Prompt user about performing OPERATION.
1689 ;; Read and return list of: regexp newname arg whole-name.
1690 (let* ((whole-name
1691 (equal 0 (prefix-numeric-value current-prefix-arg)))
1692 (arg
1693 (if whole-name nil current-prefix-arg))
1694 (regexp
1695 (dired-read-regexp
1696 (concat (if whole-name "Abs. " "") operation " from (regexp): ")))
1697 (newname
1698 (read-string
1699 (concat (if whole-name "Abs. " "") operation " " regexp " to: "))))
1700 (list regexp newname arg whole-name)))
1702 ;;;###autoload
1703 (defun dired-do-rename-regexp (regexp newname &optional arg whole-name)
1704 "Rename selected files whose names match REGEXP to NEWNAME.
1706 With non-zero prefix argument ARG, the command operates on the next ARG
1707 files. Otherwise, it operates on all the marked files, or the current
1708 file if none are marked.
1710 As each match is found, the user must type a character saying
1711 what to do with it. For directions, type \\[help-command] at that time.
1712 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1713 REGEXP defaults to the last regexp used.
1715 With a zero prefix arg, renaming by regexp affects the absolute file name.
1716 Normally, only the non-directory part of the file name is used and changed."
1717 (interactive (dired-mark-read-regexp "Rename"))
1718 (dired-do-create-files-regexp
1719 (function dired-rename-file)
1720 "Rename" arg regexp newname whole-name dired-keep-marker-rename))
1722 ;;;###autoload
1723 (defun dired-do-copy-regexp (regexp newname &optional arg whole-name)
1724 "Copy selected files whose names match REGEXP to NEWNAME.
1725 See function `dired-do-rename-regexp' for more info."
1726 (interactive (dired-mark-read-regexp "Copy"))
1727 (let ((dired-recursive-copies nil)) ; No recursive copies.
1728 (dired-do-create-files-regexp
1729 (function dired-copy-file)
1730 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1731 arg regexp newname whole-name dired-keep-marker-copy)))
1733 ;;;###autoload
1734 (defun dired-do-hardlink-regexp (regexp newname &optional arg whole-name)
1735 "Hardlink selected files whose names match REGEXP to NEWNAME.
1736 See function `dired-do-rename-regexp' for more info."
1737 (interactive (dired-mark-read-regexp "HardLink"))
1738 (dired-do-create-files-regexp
1739 (function add-name-to-file)
1740 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink))
1742 ;;;###autoload
1743 (defun dired-do-symlink-regexp (regexp newname &optional arg whole-name)
1744 "Symlink selected files whose names match REGEXP to NEWNAME.
1745 See function `dired-do-rename-regexp' for more info."
1746 (interactive (dired-mark-read-regexp "SymLink"))
1747 (dired-do-create-files-regexp
1748 (function make-symbolic-link)
1749 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink))
1751 (defun dired-create-files-non-directory
1752 (file-creator basename-constructor operation arg)
1753 ;; Perform FILE-CREATOR on the non-directory part of marked files
1754 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1755 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1756 (let (rename-non-directory-query)
1757 (dired-create-files
1758 file-creator
1759 operation
1760 (dired-get-marked-files nil arg)
1761 (function
1762 (lambda (from)
1763 (let ((to (concat (file-name-directory from)
1764 (funcall basename-constructor
1765 (file-name-nondirectory from)))))
1766 (and (let ((help-form (format "\
1767 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1768 `!' to %s all remaining matches with no more questions."
1769 (downcase operation)
1770 (downcase operation))))
1771 (dired-query 'rename-non-directory-query
1772 (concat operation " `%s' to `%s'")
1773 (dired-make-relative from)
1774 (dired-make-relative to)))
1775 to))))
1776 dired-keep-marker-rename)))
1778 (defun dired-rename-non-directory (basename-constructor operation arg)
1779 (dired-create-files-non-directory
1780 (function dired-rename-file)
1781 basename-constructor operation arg))
1783 ;;;###autoload
1784 (defun dired-upcase (&optional arg)
1785 "Rename all marked (or next ARG) files to upper case."
1786 (interactive "P")
1787 (dired-rename-non-directory (function upcase) "Rename upcase" arg))
1789 ;;;###autoload
1790 (defun dired-downcase (&optional arg)
1791 "Rename all marked (or next ARG) files to lower case."
1792 (interactive "P")
1793 (dired-rename-non-directory (function downcase) "Rename downcase" arg))
1795 ;;;###end dired-re.el
1797 ;;; 13K
1798 ;;;###begin dired-ins.el
1800 ;;;###autoload
1801 (defun dired-maybe-insert-subdir (dirname &optional
1802 switches no-error-if-not-dir-p)
1803 "Insert this subdirectory into the same dired buffer.
1804 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1805 else inserts it at its natural place (as `ls -lR' would have done).
1806 With a prefix arg, you may edit the ls switches used for this listing.
1807 You can add `R' to the switches to expand the whole tree starting at
1808 this subdirectory.
1809 This function takes some pains to conform to `ls -lR' output.
1811 Dired remembers switches specified with a prefix arg, so that reverting
1812 the buffer will not reset them. However, using `dired-undo' to re-insert
1813 or delete subdirectories can bypass this machinery. Hence, you sometimes
1814 may have to reset some subdirectory switches after a `dired-undo'.
1815 You can reset all subdirectory switches to the default using
1816 \\<dired-mode-map>\\[dired-reset-subdir-switches].
1817 See Info node `(emacs)Subdir switches' for more details."
1818 (interactive
1819 (list (dired-get-filename)
1820 (if current-prefix-arg
1821 (read-string "Switches for listing: "
1822 (or dired-subdir-switches dired-actual-switches)))))
1823 (let ((opoint (point)))
1824 ;; We don't need a marker for opoint as the subdir is always
1825 ;; inserted *after* opoint.
1826 (setq dirname (file-name-as-directory dirname))
1827 (or (and (not switches)
1828 (dired-goto-subdir dirname))
1829 (dired-insert-subdir dirname switches no-error-if-not-dir-p))
1830 ;; Push mark so that it's easy to find back. Do this after the
1831 ;; insert message so that the user sees the `Mark set' message.
1832 (push-mark opoint)))
1834 ;;;###autoload
1835 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
1836 "Insert this subdirectory into the same dired buffer.
1837 If it is already present, overwrites previous entry,
1838 else inserts it at its natural place (as `ls -lR' would have done).
1839 With a prefix arg, you may edit the `ls' switches used for this listing.
1840 You can add `R' to the switches to expand the whole tree starting at
1841 this subdirectory.
1842 This function takes some pains to conform to `ls -lR' output."
1843 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1844 ;; Prospero where dired-ls does the right thing, but
1845 ;; file-directory-p has not been redefined.
1846 (interactive
1847 (list (dired-get-filename)
1848 (if current-prefix-arg
1849 (read-string "Switches for listing: "
1850 (or dired-subdir-switches dired-actual-switches)))))
1851 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1852 (or no-error-if-not-dir-p
1853 (file-directory-p dirname)
1854 (error "Attempt to insert a non-directory: %s" dirname))
1855 (let ((elt (assoc dirname dired-subdir-alist))
1856 (cons (assoc-string dirname dired-switches-alist))
1857 (modflag (buffer-modified-p))
1858 (old-switches switches)
1859 switches-have-R mark-alist case-fold-search buffer-read-only)
1860 (and (not switches) cons (setq switches (cdr cons)))
1861 (dired-insert-subdir-validate dirname switches)
1862 ;; case-fold-search is nil now, so we can test for capital `R':
1863 (if (setq switches-have-R (and switches (string-match "R" switches)))
1864 ;; avoid duplicated subdirs
1865 (setq mark-alist (dired-kill-tree dirname t)))
1866 (if elt
1867 ;; If subdir is already present, remove it and remember its marks
1868 (setq mark-alist (nconc (dired-insert-subdir-del elt) mark-alist))
1869 (dired-insert-subdir-newpos dirname)) ; else compute new position
1870 (dired-insert-subdir-doupdate
1871 dirname elt (dired-insert-subdir-doinsert dirname switches))
1872 (when old-switches
1873 (if cons
1874 (setcdr cons switches)
1875 (push (cons dirname switches) dired-switches-alist)))
1876 (when switches-have-R
1877 (dired-build-subdir-alist switches)
1878 (setq switches (dired-replace-in-string "R" "" switches))
1879 (dolist (cur-ass dired-subdir-alist)
1880 (let ((cur-dir (car cur-ass)))
1881 (and (dired-in-this-tree cur-dir dirname)
1882 (let ((cur-cons (assoc-string cur-dir dired-switches-alist)))
1883 (if cur-cons
1884 (setcdr cur-cons switches)
1885 (push (cons cur-dir switches) dired-switches-alist)))))))
1886 (dired-initial-position dirname)
1887 (save-excursion (dired-mark-remembered mark-alist))
1888 (restore-buffer-modified-p modflag)))
1890 ;; This is a separate function for dired-vms.
1891 (defun dired-insert-subdir-validate (dirname &optional switches)
1892 ;; Check that it is valid to insert DIRNAME with SWITCHES.
1893 ;; Signal an error if invalid (e.g. user typed `i' on `..').
1894 (or (dired-in-this-tree dirname (expand-file-name default-directory))
1895 (error "%s: not in this directory tree" dirname))
1896 (let ((real-switches (or switches dired-subdir-switches)))
1897 (when real-switches
1898 (let (case-fold-search)
1899 (mapcar
1900 (function
1901 (lambda (x)
1902 (or (eq (null (string-match x real-switches))
1903 (null (string-match x dired-actual-switches)))
1904 (error
1905 "Can't have dirs with and without -%s switches together" x))))
1906 ;; all switches that make a difference to dired-get-filename:
1907 '("F" "b"))))))
1909 (defun dired-alist-add (dir new-marker)
1910 ;; Add new DIR at NEW-MARKER. Sort alist.
1911 (dired-alist-add-1 dir new-marker)
1912 (dired-alist-sort))
1914 (defun dired-alist-sort ()
1915 ;; Keep the alist sorted on buffer position.
1916 (setq dired-subdir-alist
1917 (sort dired-subdir-alist
1918 (function (lambda (elt1 elt2)
1919 (> (dired-get-subdir-min elt1)
1920 (dired-get-subdir-min elt2)))))))
1922 (defun dired-kill-tree (dirname &optional remember-marks kill-root)
1923 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
1924 Interactively, you can kill DIRNAME as well by using a prefix argument.
1925 In interactive use, the command prompts for DIRNAME.
1927 When called from Lisp, if REMEMBER-MARKS is non-nil, return an alist
1928 of marked files. If KILL-ROOT is non-nil, kill DIRNAME as well."
1929 (interactive "DKill tree below directory: \ni\nP")
1930 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1931 (let ((s-alist dired-subdir-alist) dir m-alist)
1932 (while s-alist
1933 (setq dir (car (car s-alist))
1934 s-alist (cdr s-alist))
1935 (and (or kill-root (not (string-equal dir dirname)))
1936 (dired-in-this-tree dir dirname)
1937 (dired-goto-subdir dir)
1938 (setq m-alist (nconc (dired-kill-subdir remember-marks) m-alist))))
1939 m-alist))
1941 (defun dired-insert-subdir-newpos (new-dir)
1942 ;; Find pos for new subdir, according to tree order.
1943 ;;(goto-char (point-max))
1944 (let ((alist dired-subdir-alist) elt dir pos new-pos)
1945 (while alist
1946 (setq elt (car alist)
1947 alist (cdr alist)
1948 dir (car elt)
1949 pos (dired-get-subdir-min elt))
1950 (if (dired-tree-lessp dir new-dir)
1951 ;; Insert NEW-DIR after DIR
1952 (setq new-pos (dired-get-subdir-max elt)
1953 alist nil)))
1954 (goto-char new-pos))
1955 ;; want a separating newline between subdirs
1956 (or (eobp)
1957 (forward-line -1))
1958 (insert "\n")
1959 (point))
1961 (defun dired-insert-subdir-del (element)
1962 ;; Erase an already present subdir (given by ELEMENT) from buffer.
1963 ;; Move to that buffer position. Return a mark-alist.
1964 (let ((begin-marker (dired-get-subdir-min element)))
1965 (goto-char begin-marker)
1966 ;; Are at beginning of subdir (and inside it!). Now determine its end:
1967 (goto-char (dired-subdir-max))
1968 (or (eobp);; want a separating newline _between_ subdirs:
1969 (forward-char -1))
1970 (prog1
1971 (dired-remember-marks begin-marker (point))
1972 (delete-region begin-marker (point)))))
1974 (defun dired-insert-subdir-doinsert (dirname switches)
1975 ;; Insert ls output after point.
1976 ;; Return the boundary of the inserted text (as list of BEG and END).
1977 (save-excursion
1978 (let ((begin (point)))
1979 (let ((dired-actual-switches
1980 (or switches
1981 dired-subdir-switches
1982 (dired-replace-in-string "R" "" dired-actual-switches))))
1983 (if (equal dirname (car (car (last dired-subdir-alist))))
1984 ;; If doing the top level directory of the buffer,
1985 ;; redo it as specified in dired-directory.
1986 (dired-readin-insert)
1987 (dired-insert-directory dirname dired-actual-switches nil nil t)))
1988 (list begin (point)))))
1990 (defun dired-insert-subdir-doupdate (dirname elt beg-end)
1991 ;; Point is at the correct subdir alist position for ELT,
1992 ;; BEG-END is the subdir-region (as list of begin and end).
1993 (if elt ; subdir was already present
1994 ;; update its position (should actually be unchanged)
1995 (set-marker (dired-get-subdir-min elt) (point-marker))
1996 (dired-alist-add dirname (point-marker)))
1997 ;; The hook may depend on the subdir-alist containing the just
1998 ;; inserted subdir, so run it after dired-alist-add:
1999 (if dired-after-readin-hook
2000 (save-excursion
2001 (let ((begin (nth 0 beg-end))
2002 (end (nth 1 beg-end)))
2003 (goto-char begin)
2004 (save-restriction
2005 (narrow-to-region begin end)
2006 ;; hook may add or delete lines, but the subdir boundary
2007 ;; marker floats
2008 (run-hooks 'dired-after-readin-hook))))))
2010 (defun dired-tree-lessp (dir1 dir2)
2011 ;; Lexicographic order on file name components, like `ls -lR':
2012 ;; DIR1 < DIR2 if DIR1 comes *before* DIR2 in an `ls -lR' listing,
2013 ;; i.e., if DIR1 is a (grand)parent dir of DIR2,
2014 ;; or DIR1 and DIR2 are in the same parentdir and their last
2015 ;; components are string-lessp.
2016 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
2017 ;; string-lessp could arguably be replaced by file-newer-than-file-p
2018 ;; if dired-actual-switches contained `t'.
2019 (setq dir1 (file-name-as-directory dir1)
2020 dir2 (file-name-as-directory dir2))
2021 (let ((components-1 (dired-split "/" dir1))
2022 (components-2 (dired-split "/" dir2)))
2023 (while (and components-1
2024 components-2
2025 (equal (car components-1) (car components-2)))
2026 (setq components-1 (cdr components-1)
2027 components-2 (cdr components-2)))
2028 (let ((c1 (car components-1))
2029 (c2 (car components-2)))
2031 (cond ((and c1 c2)
2032 (string-lessp c1 c2))
2033 ((and (null c1) (null c2))
2034 nil) ; they are equal, not lessp
2035 ((null c1) ; c2 is a subdir of c1: c1<c2
2037 ((null c2) ; c1 is a subdir of c2: c1>c2
2038 nil)
2039 (t (error "This can't happen"))))))
2041 ;; There should be a builtin split function - inverse to mapconcat.
2042 (defun dired-split (pat str &optional limit)
2043 "Splitting on regexp PAT, turn string STR into a list of substrings.
2044 Optional third arg LIMIT (>= 1) is a limit to the length of the
2045 resulting list.
2046 Thus, if SEP is a regexp that only matches itself,
2048 (mapconcat 'identity (dired-split SEP STRING) SEP)
2050 is always equal to STRING."
2051 (let* ((start (string-match pat str))
2052 (result (list (substring str 0 start)))
2053 (count 1)
2054 (end (if start (match-end 0))))
2055 (if end ; else nothing left
2056 (while (and (or (not (integerp limit))
2057 (< count limit))
2058 (string-match pat str end))
2059 (setq start (match-beginning 0)
2060 count (1+ count)
2061 result (cons (substring str end start) result)
2062 end (match-end 0)
2063 start end)
2065 (if (and (or (not (integerp limit))
2066 (< count limit))
2067 end) ; else nothing left
2068 (setq result
2069 (cons (substring str end) result)))
2070 (nreverse result)))
2072 ;;; moving by subdirectories
2074 ;;;###autoload
2075 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip)
2076 "Go to previous subdirectory, regardless of level.
2077 When called interactively and not on a subdir line, go to this subdir's line."
2078 ;;(interactive "p")
2079 (interactive
2080 (list (if current-prefix-arg
2081 (prefix-numeric-value current-prefix-arg)
2082 ;; if on subdir start already, don't stay there!
2083 (if (dired-get-subdir) 1 0))))
2084 (dired-next-subdir (- arg) no-error-if-not-found no-skip))
2086 (defun dired-subdir-min ()
2087 (save-excursion
2088 (if (not (dired-prev-subdir 0 t t))
2089 (error "Not in a subdir!")
2090 (point))))
2092 ;;;###autoload
2093 (defun dired-goto-subdir (dir)
2094 "Go to end of header line of DIR in this dired buffer.
2095 Return value of point on success, otherwise return nil.
2096 The next char is either \\n, or \\r if DIR is hidden."
2097 (interactive
2098 (prog1 ; let push-mark display its message
2099 (list (expand-file-name
2100 (completing-read "Goto in situ directory: " ; prompt
2101 dired-subdir-alist ; table
2102 nil ; predicate
2103 t ; require-match
2104 (dired-current-directory))))
2105 (push-mark)))
2106 (setq dir (file-name-as-directory dir))
2107 (let ((elt (assoc dir dired-subdir-alist)))
2108 (and elt
2109 (goto-char (dired-get-subdir-min elt))
2110 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
2111 ;; at either \r or \n after this function succeeds.
2112 (progn (skip-chars-forward "^\r\n")
2113 (point)))))
2115 ;;;###autoload
2116 (defun dired-mark-subdir-files ()
2117 "Mark all files except `.' and `..' in current subdirectory.
2118 If the Dired buffer shows multiple directories, this command
2119 marks the files listed in the subdirectory that point is in."
2120 (interactive)
2121 (let ((p-min (dired-subdir-min)))
2122 (dired-mark-files-in-region p-min (dired-subdir-max))))
2124 ;;;###autoload
2125 (defun dired-kill-subdir (&optional remember-marks)
2126 "Remove all lines of current subdirectory.
2127 Lower levels are unaffected."
2128 ;; With optional REMEMBER-MARKS, return a mark-alist.
2129 (interactive)
2130 (let* ((beg (dired-subdir-min))
2131 (end (dired-subdir-max))
2132 (modflag (buffer-modified-p))
2133 (cur-dir (dired-current-directory))
2134 (cons (assoc-string cur-dir dired-switches-alist))
2135 buffer-read-only)
2136 (if (equal cur-dir default-directory)
2137 (error "Attempt to kill top level directory"))
2138 (prog1
2139 (if remember-marks (dired-remember-marks beg end))
2140 (delete-region beg end)
2141 (if (eobp) ; don't leave final blank line
2142 (delete-char -1))
2143 (dired-unsubdir cur-dir)
2144 (when cons
2145 (setq dired-switches-alist (delete cons dired-switches-alist)))
2146 (restore-buffer-modified-p modflag))))
2148 (defun dired-unsubdir (dir)
2149 ;; Remove DIR from the alist
2150 (setq dired-subdir-alist
2151 (delq (assoc dir dired-subdir-alist) dired-subdir-alist)))
2153 ;;;###autoload
2154 (defun dired-tree-up (arg)
2155 "Go up ARG levels in the dired tree."
2156 (interactive "p")
2157 (let ((dir (dired-current-directory)))
2158 (while (>= arg 1)
2159 (setq arg (1- arg)
2160 dir (file-name-directory (directory-file-name dir))))
2161 ;;(setq dir (expand-file-name dir))
2162 (or (dired-goto-subdir dir)
2163 (error "Cannot go up to %s - not in this tree" dir))))
2165 ;;;###autoload
2166 (defun dired-tree-down ()
2167 "Go down in the dired tree."
2168 (interactive)
2169 (let ((dir (dired-current-directory)) ; has slash
2170 pos case-fold-search) ; filenames are case sensitive
2171 (let ((rest (reverse dired-subdir-alist)) elt)
2172 (while rest
2173 (setq elt (car rest)
2174 rest (cdr rest))
2175 (if (dired-in-this-tree (directory-file-name (car elt)) dir)
2176 (setq rest nil
2177 pos (dired-goto-subdir (car elt))))))
2178 (if pos
2179 (goto-char pos)
2180 (error "At the bottom"))))
2182 ;;; hiding
2184 (defun dired-unhide-subdir ()
2185 (let (buffer-read-only)
2186 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?\r ?\n)))
2188 (defun dired-hide-check ()
2189 (or selective-display
2190 (error "selective-display must be t for subdir hiding to work!")))
2192 (defun dired-subdir-hidden-p (dir)
2193 (and selective-display
2194 (save-excursion
2195 (dired-goto-subdir dir)
2196 (looking-at "\r"))))
2198 ;;;###autoload
2199 (defun dired-hide-subdir (arg)
2200 "Hide or unhide the current subdirectory and move to next directory.
2201 Optional prefix arg is a repeat factor.
2202 Use \\[dired-hide-all] to (un)hide all directories."
2203 (interactive "p")
2204 (dired-hide-check)
2205 (let ((modflag (buffer-modified-p)))
2206 (while (>= (setq arg (1- arg)) 0)
2207 (let* ((cur-dir (dired-current-directory))
2208 (hidden-p (dired-subdir-hidden-p cur-dir))
2209 (elt (assoc cur-dir dired-subdir-alist))
2210 (end-pos (1- (dired-get-subdir-max elt)))
2211 buffer-read-only)
2212 ;; keep header line visible, hide rest
2213 (goto-char (dired-get-subdir-min elt))
2214 (skip-chars-forward "^\n\r")
2215 (if hidden-p
2216 (subst-char-in-region (point) end-pos ?\r ?\n)
2217 (subst-char-in-region (point) end-pos ?\n ?\r)))
2218 (dired-next-subdir 1 t))
2219 (restore-buffer-modified-p modflag)))
2221 ;;;###autoload
2222 (defun dired-hide-all (arg)
2223 "Hide all subdirectories, leaving only their header lines.
2224 If there is already something hidden, make everything visible again.
2225 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2226 (interactive "P")
2227 (dired-hide-check)
2228 (let ((modflag (buffer-modified-p))
2229 buffer-read-only)
2230 (if (save-excursion
2231 (goto-char (point-min))
2232 (search-forward "\r" nil t))
2233 ;; unhide - bombs on \r in filenames
2234 (subst-char-in-region (point-min) (point-max) ?\r ?\n)
2235 ;; hide
2236 (let ((pos (point-max)) ; pos of end of last directory
2237 (alist dired-subdir-alist))
2238 (while alist ; while there are dirs before pos
2239 (subst-char-in-region (dired-get-subdir-min (car alist)) ; pos of prev dir
2240 (save-excursion
2241 (goto-char pos) ; current dir
2242 ;; we're somewhere on current dir's line
2243 (forward-line -1)
2244 (point))
2245 ?\n ?\r)
2246 (setq pos (dired-get-subdir-min (car alist))) ; prev dir gets current dir
2247 (setq alist (cdr alist)))))
2248 (restore-buffer-modified-p modflag)))
2250 ;;;###end dired-ins.el
2253 ;; Functions for searching in tags style among marked files.
2255 ;;;###autoload
2256 (defun dired-do-search (regexp)
2257 "Search through all marked files for a match for REGEXP.
2258 Stops when a match is found.
2259 To continue searching for next match, use command \\[tags-loop-continue]."
2260 (interactive "sSearch marked files (regexp): ")
2261 (tags-search regexp '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2263 ;;;###autoload
2264 (defun dired-do-query-replace-regexp (from to &optional delimited)
2265 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2266 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2267 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2268 with the command \\[tags-loop-continue]."
2269 (interactive
2270 (let ((common
2271 (query-replace-read-args
2272 "Query replace regexp in marked files" t t)))
2273 (list (nth 0 common) (nth 1 common) (nth 2 common))))
2274 (dolist (file (dired-get-marked-files nil nil 'dired-nondirectory-p))
2275 (let ((buffer (get-file-buffer file)))
2276 (if (and buffer (with-current-buffer buffer
2277 buffer-read-only))
2278 (error "File `%s' is visited read-only" file))))
2279 (tags-query-replace from to delimited
2280 '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2282 (defun dired-nondirectory-p (file)
2283 (not (file-directory-p file)))
2285 ;;;###autoload
2286 (defun dired-show-file-type (file &optional deref-symlinks)
2287 "Print the type of FILE, according to the `file' command.
2288 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2289 true then the type of the file linked to by FILE is printed instead."
2290 (interactive (list (dired-get-filename t) current-prefix-arg))
2291 (with-temp-buffer
2292 (if deref-symlinks
2293 (call-process "file" nil t t "-L" "--" file)
2294 (call-process "file" nil t t "--" file))
2295 (when (bolp)
2296 (backward-delete-char 1))
2297 (message "%s" (buffer-string))))
2299 (provide 'dired-aux)
2301 ;;; arch-tag: 4b508de9-a153-423d-8d3f-a1bbd86f4f60
2302 ;;; dired-aux.el ends here