(set-visited-file-name, file-expand-wildcards): Fix docstring.
[emacs.git] / lisp / dired-aux.el
blobb31d20782f38f25e6a0ec75ffefb73747bcce678
1 ;;; dired-aux.el --- less commonly used parts of dired -*-byte-compile-dynamic: t;-*-
3 ;; Copyright (C) 1985, 1986, 1992, 1994, 1998, 2000, 2001, 2004
4 ;; 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 2, 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., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, 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 ;;; 15K
43 ;;;###begin dired-cmd.el
44 ;; Diffing and compressing
46 (defconst dired-star-subst-regexp "\\(^\\|[ \t]\\)\\*\\([ \t]\\|$\\)")
47 (defconst dired-quark-subst-regexp "\\(^\\|[ \t]\\)\\?\\([ \t]\\|$\\)")
49 ;;;###autoload
50 (defun dired-diff (file &optional switches)
51 "Compare file at point with file FILE using `diff'.
52 FILE defaults to the file at the mark. (That's the mark set by
53 \\[set-mark-command], not by Dired's \\[dired-mark] command.)
54 The prompted-for file is the first file given to `diff'.
55 With prefix arg, prompt for second argument SWITCHES,
56 which is options for `diff'."
57 (interactive
58 (let ((default (if (mark t)
59 (save-excursion (goto-char (mark t))
60 (dired-get-filename t t)))))
61 (require 'diff)
62 (list (read-file-name (format "Diff %s with: %s"
63 (dired-get-filename t)
64 (if default
65 (concat "(default " default ") ")
66 ""))
67 (if default
68 (dired-current-directory)
69 (dired-dwim-target-directory))
70 default t)
71 (if current-prefix-arg
72 (read-string "Options for diff: "
73 (if (stringp diff-switches)
74 diff-switches
75 (mapconcat 'identity diff-switches " ")))))))
76 (diff file (dired-get-filename t) switches))
78 ;;;###autoload
79 (defun dired-backup-diff (&optional switches)
80 "Diff this file with its backup file or vice versa.
81 Uses the latest backup, if there are several numerical backups.
82 If this file is a backup, diff it with its original.
83 The backup file is the first file given to `diff'.
84 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
85 (interactive
86 (if current-prefix-arg
87 (list (read-string "Options for diff: "
88 (if (stringp diff-switches)
89 diff-switches
90 (mapconcat 'identity diff-switches " "))))
91 nil))
92 (diff-backup (dired-get-filename) switches))
94 (defun dired-compare-directories (dir2 predicate)
95 "Mark files with different file attributes in two dired buffers.
96 Compare file attributes of files in the current directory
97 with file attributes in directory DIR2 using PREDICATE on pairs of files
98 with the same name. Mark files for which PREDICATE returns non-nil.
99 Mark files with different names if PREDICATE is nil (or interactively
100 when the user enters empty input at the predicate prompt).
102 PREDICATE is a Lisp expression that can refer to the following variables:
104 size1, size2 - file size in bytes
105 mtime1, mtime2 - last modification time in seconds, as a float
106 fa1, fa2 - list of file attributes
107 returned by function `file-attributes'
109 where 1 refers to attribute of file in the current dired buffer
110 and 2 to attribute of file in second dired buffer.
112 Examples of PREDICATE:
114 (> mtime1 mtime2) - mark newer files
115 (not (= size1 size2)) - mark files with different sizes
116 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
117 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
118 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
119 (interactive
120 (list (read-file-name (format "Compare %s with: "
121 (dired-current-directory))
122 (dired-dwim-target-directory))
123 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil "nil")))
124 (let* ((dir1 (dired-current-directory))
125 (file-alist1 (dired-files-attributes dir1))
126 (file-alist2 (dired-files-attributes dir2))
127 (file-list1 (mapcar
128 'cadr
129 (dired-file-set-difference
130 file-alist1 file-alist2
131 predicate)))
132 (file-list2 (mapcar
133 'cadr
134 (dired-file-set-difference
135 file-alist2 file-alist1
136 predicate))))
137 (dired-fun-in-all-buffers
138 dir1 nil
139 (lambda ()
140 (dired-mark-if
141 (member (dired-get-filename nil t) file-list1) nil)))
142 (dired-fun-in-all-buffers
143 dir2 nil
144 (lambda ()
145 (dired-mark-if
146 (member (dired-get-filename nil t) file-list2) nil)))
147 (message "Marked in dir1: %s files, in dir2: %s files"
148 (length file-list1)
149 (length file-list2))))
151 (defun dired-file-set-difference (list1 list2 predicate)
152 "Combine LIST1 and LIST2 using a set-difference operation.
153 The result list contains all file items that appear in LIST1 but not LIST2.
154 This is a non-destructive function; it makes a copy of the data if necessary
155 to avoid corrupting the original LIST1 and LIST2.
156 PREDICATE (see `dired-compare-directories') is an additional match
157 condition. Two file items are considered to match if they are equal
158 *and* PREDICATE evaluates to t."
159 (if (or (null list1) (null list2))
160 list1
161 (let (res)
162 (dolist (file1 list1)
163 (unless (let ((list list2))
164 (while (and list
165 (not (let* ((file2 (car list))
166 (fa1 (caddr file1))
167 (fa2 (caddr file2))
168 (size1 (nth 7 fa1))
169 (size2 (nth 7 fa2))
170 (mtime1 (float-time (nth 5 fa1)))
171 (mtime2 (float-time (nth 5 fa2))))
172 (and
173 (equal (car file1) (car file2))
174 (not (eval predicate))))))
175 (setq list (cdr list)))
176 list)
177 (setq res (cons file1 res))))
178 (nreverse res))))
180 (defun dired-files-attributes (dir)
181 "Return a list of all file names and attributes from DIR.
182 List has a form of (file-name full-file-name (attribute-list))"
183 (mapcar
184 (lambda (file-name)
185 (let ((full-file-name (expand-file-name file-name dir)))
186 (list file-name
187 full-file-name
188 (file-attributes full-file-name))))
189 (directory-files dir)))
192 (defun dired-touch-initial (files)
193 "Create initial input value for `touch' command."
194 (let (initial)
195 (while files
196 (let ((current (nth 5 (file-attributes (car files)))))
197 (if (and initial (not (equal initial current)))
198 (setq initial (current-time) files nil)
199 (setq initial current))
200 (setq files (cdr files))))
201 (format-time-string "%Y%m%d%H%M.%S" initial)))
203 (defun dired-do-chxxx (attribute-name program op-symbol arg)
204 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
205 ;; refresh their file lines.
206 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
207 ;; PROGRAM is the program used to change the attribute.
208 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
209 ;; ARG describes which files to use, as in dired-get-marked-files.
210 (let* ((files (dired-get-marked-files t arg))
211 (new-attribute
212 (dired-mark-read-string
213 (concat "Change " attribute-name " of %s to: ")
214 (if (eq op-symbol 'touch) (dired-touch-initial files))
215 op-symbol arg files))
216 (operation (concat program " " new-attribute))
217 failures)
218 (setq failures
219 (dired-bunch-files 10000
220 (function dired-check-process)
221 (append
222 (list operation program)
223 (if (eq op-symbol 'touch)
224 '("-t") nil)
225 (list new-attribute)
226 (if (string-match "gnu" system-configuration)
227 '("--") nil))
228 files))
229 (dired-do-redisplay arg);; moves point if ARG is an integer
230 (if failures
231 (dired-log-summary
232 (format "%s: error" operation)
233 nil))))
235 ;;;###autoload
236 (defun dired-do-chmod (&optional arg)
237 "Change the mode of the marked (or next ARG) files.
238 This calls chmod, thus symbolic modes like `g+w' are allowed."
239 (interactive "P")
240 (dired-do-chxxx "Mode" dired-chmod-program 'chmod arg))
242 ;;;###autoload
243 (defun dired-do-chgrp (&optional arg)
244 "Change the group of the marked (or next ARG) files."
245 (interactive "P")
246 (if (memq system-type '(ms-dos windows-nt))
247 (error "chgrp not supported on this system"))
248 (dired-do-chxxx "Group" "chgrp" 'chgrp arg))
250 ;;;###autoload
251 (defun dired-do-chown (&optional arg)
252 "Change the owner of the marked (or next ARG) files."
253 (interactive "P")
254 (if (memq system-type '(ms-dos windows-nt))
255 (error "chown not supported on this system"))
256 (dired-do-chxxx "Owner" dired-chown-program 'chown arg))
258 (defun dired-do-touch (&optional arg)
259 "Change the timestamp of the marked (or next ARG) files.
260 This calls touch."
261 (interactive "P")
262 (dired-do-chxxx "Timestamp" dired-touch-program 'touch arg))
264 ;; Process all the files in FILES in batches of a convenient size,
265 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
266 ;; Batches are chosen to need less than MAX chars for the file names,
267 ;; allowing 3 extra characters of separator per file name.
268 (defun dired-bunch-files (max function args files)
269 (let (pending
270 past
271 (pending-length 0)
272 failures)
273 ;; Accumulate files as long as they fit in MAX chars,
274 ;; then process the ones accumulated so far.
275 (while files
276 (let* ((thisfile (car files))
277 (thislength (+ (length thisfile) 3))
278 (rest (cdr files)))
279 ;; If we have at least 1 pending file
280 ;; and this file won't fit in the length limit, process now.
281 (if (and pending (> (+ thislength pending-length) max))
282 (setq pending (nreverse pending)
283 ;; The elements of PENDING are now in forward order.
284 ;; Do the operation and record failures.
285 failures (nconc (apply function (append args pending))
286 failures)
287 ;; Transfer the elemens of PENDING onto PAST
288 ;; and clear it out. Now PAST contains the first N files
289 ;; specified (for some N), and FILES contains the rest.
290 past (nconc past pending)
291 pending nil
292 pending-length 0))
293 ;; Do (setq pending (cons thisfile pending))
294 ;; but reuse the cons that was in `files'.
295 (setcdr files pending)
296 (setq pending files)
297 (setq pending-length (+ thislength pending-length))
298 (setq files rest)))
299 (setq pending (nreverse pending))
300 (prog1
301 (nconc (apply function (append args pending))
302 failures)
303 ;; Now the original list FILES has been put back as it was.
304 (nconc past pending))))
306 ;;;###autoload
307 (defun dired-do-print (&optional arg)
308 "Print the marked (or next ARG) files.
309 Uses the shell command coming from variables `lpr-command' and
310 `lpr-switches' as default."
311 (interactive "P")
312 (let* ((file-list (dired-get-marked-files t arg))
313 (command (dired-mark-read-string
314 "Print %s with: "
315 (mapconcat 'identity
316 (cons lpr-command
317 (if (stringp lpr-switches)
318 (list lpr-switches)
319 lpr-switches))
320 " ")
321 'print arg file-list)))
322 (dired-run-shell-command (dired-shell-stuff-it command file-list nil))))
324 ;; Read arguments for a marked-files command that wants a string
325 ;; that is not a file name,
326 ;; perhaps popping up the list of marked files.
327 ;; ARG is the prefix arg and indicates whether the files came from
328 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
329 ;; If the current file was used, the list has but one element and ARG
330 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
332 (defun dired-mark-read-string (prompt initial op-symbol arg files)
333 ;; PROMPT for a string, with INITIAL input.
334 ;; Other args are used to give user feedback and pop-up:
335 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
336 (dired-mark-pop-up
337 nil op-symbol files
338 (function read-string)
339 (format prompt (dired-mark-prompt arg files)) initial))
341 ;;; Cleaning a directory: flagging some backups for deletion.
343 (defvar dired-file-version-alist)
345 (defun dired-clean-directory (keep)
346 "Flag numerical backups for deletion.
347 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
348 Positive prefix arg KEEP overrides `dired-kept-versions';
349 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
351 To clear the flags on these files, you can use \\[dired-flag-backup-files]
352 with a prefix argument."
353 (interactive "P")
354 (setq keep (if keep (prefix-numeric-value keep) dired-kept-versions))
355 (let ((early-retention (if (< keep 0) (- keep) kept-old-versions))
356 (late-retention (if (<= keep 0) dired-kept-versions keep))
357 (dired-file-version-alist ()))
358 (message "Cleaning numerical backups (keeping %d late, %d old)..."
359 late-retention early-retention)
360 ;; Look at each file.
361 ;; If the file has numeric backup versions,
362 ;; put on dired-file-version-alist an element of the form
363 ;; (FILENAME . VERSION-NUMBER-LIST)
364 (dired-map-dired-file-lines (function dired-collect-file-versions))
365 ;; Sort each VERSION-NUMBER-LIST,
366 ;; and remove the versions not to be deleted.
367 (let ((fval dired-file-version-alist))
368 (while fval
369 (let* ((sorted-v-list (cons 'q (sort (cdr (car fval)) '<)))
370 (v-count (length sorted-v-list)))
371 (if (> v-count (+ early-retention late-retention))
372 (rplacd (nthcdr early-retention sorted-v-list)
373 (nthcdr (- v-count late-retention)
374 sorted-v-list)))
375 (rplacd (car fval)
376 (cdr sorted-v-list)))
377 (setq fval (cdr fval))))
378 ;; Look at each file. If it is a numeric backup file,
379 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
380 (dired-map-dired-file-lines (function dired-trample-file-versions))
381 (message "Cleaning numerical backups...done")))
383 ;;; Subroutines of dired-clean-directory.
385 (defun dired-map-dired-file-lines (fun)
386 ;; Perform FUN with point at the end of each non-directory line.
387 ;; FUN takes one argument, the absolute filename.
388 (save-excursion
389 (let (file buffer-read-only)
390 (goto-char (point-min))
391 (while (not (eobp))
392 (save-excursion
393 (and (not (looking-at dired-re-dir))
394 (not (eolp))
395 (setq file (dired-get-filename nil t)) ; nil on non-file
396 (progn (end-of-line)
397 (funcall fun file))))
398 (forward-line 1)))))
400 (defun dired-collect-file-versions (fn)
401 (let ((fn (file-name-sans-versions fn)))
402 ;; Only do work if this file is not already in the alist.
403 (if (assoc fn dired-file-version-alist)
405 ;; If it looks like file FN has versions, return a list of the versions.
406 ;;That is a list of strings which are file names.
407 ;;The caller may want to flag some of these files for deletion.
408 (let* ((base-versions
409 (concat (file-name-nondirectory fn) ".~"))
410 (backup-extract-version-start (length base-versions))
411 (possibilities (file-name-all-completions
412 base-versions
413 (file-name-directory fn)))
414 (versions (mapcar 'backup-extract-version possibilities)))
415 (if versions
416 (setq dired-file-version-alist
417 (cons (cons fn versions)
418 dired-file-version-alist)))))))
420 (defun dired-trample-file-versions (fn)
421 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn))
422 base-version-list)
423 (and start-vn
424 (setq base-version-list ; there was a base version to which
425 (assoc (substring fn 0 start-vn) ; this looks like a
426 dired-file-version-alist)) ; subversion
427 (not (memq (string-to-int (substring fn (+ 2 start-vn)))
428 base-version-list)) ; this one doesn't make the cut
429 (progn (beginning-of-line)
430 (delete-char 1)
431 (insert dired-del-marker)))))
433 ;;; Shell commands
435 (defun dired-read-shell-command (prompt arg files)
436 ;; "Read a dired shell command prompting with PROMPT (using read-string).
437 ;;ARG is the prefix arg and may be used to indicate in the prompt which
438 ;; files are affected.
439 ;;This is an extra function so that you can redefine it, e.g., to use gmhist."
440 (dired-mark-pop-up
441 nil 'shell files
442 (function read-string)
443 (format prompt (dired-mark-prompt arg files))
444 nil 'shell-command-history))
446 ;; The in-background argument is only needed in Emacs 18 where
447 ;; shell-command doesn't understand an appended ampersand `&'.
448 ;;;###autoload
449 (defun dired-do-shell-command (command &optional arg file-list)
450 "Run a shell command COMMAND on the marked files.
451 If no files are marked or a specific numeric prefix arg is given,
452 the next ARG files are used. Just \\[universal-argument] means the current file.
453 The prompt mentions the file(s) or the marker, as appropriate.
455 If there is a `*' in COMMAND, surrounded by whitespace, this runs
456 COMMAND just once with the entire file list substituted there.
458 If there is no `*', but there is a `?' in COMMAND, surrounded by
459 whitespace, this runs COMMAND on each file individually with the
460 file name substituted for `?'.
462 Otherwise, this runs COMMAND on each file individually with the
463 file name added at the end of COMMAND (separated by a space).
465 `*' and `?' when not surrounded by whitespace have no special
466 significance for `dired-do-shell-command', and are passed through
467 normally to the shell, but you must confirm first. To pass `*' by
468 itself to the shell as a wildcard, type `*\"\"'.
470 If COMMAND produces output, it goes to a separate buffer.
472 This feature does not try to redisplay Dired buffers afterward, as
473 there's no telling what files COMMAND may have changed.
474 Type \\[dired-do-redisplay] to redisplay the marked files.
476 When COMMAND runs, its working directory is the top-level directory of
477 the Dired buffer, so output files usually are created there instead of
478 in a subdir.
480 In a noninteractive call (from Lisp code), you must specify
481 the list of file names explicitly with the FILE-LIST argument."
482 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
483 ;;actual work and can be redefined for customization.
484 (interactive
485 (let ((files (dired-get-marked-files t current-prefix-arg)))
486 (list
487 ;; Want to give feedback whether this file or marked files are used:
488 (dired-read-shell-command (concat "! on "
489 "%s: ")
490 current-prefix-arg
491 files)
492 current-prefix-arg
493 files)))
494 (let* ((on-each (not (string-match dired-star-subst-regexp command)))
495 (subst (not (string-match dired-quark-subst-regexp command)))
496 (star (not (string-match "\\*" command)))
497 (qmark (not (string-match "\\?" command))))
498 ;; Get confirmation for wildcards that may have been meant
499 ;; to control substitution of a file name or the file name list.
500 (if (cond ((not (or on-each subst))
501 (error "You can not combine `*' and `?' substitution marks"))
502 ((and star (not on-each))
503 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
504 ((and qmark (not subst))
505 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
506 (t))
507 (if on-each
508 (dired-bunch-files
509 (- 10000 (length command))
510 (function (lambda (&rest files)
511 (dired-run-shell-command
512 (dired-shell-stuff-it command files t arg))))
514 file-list)
515 ;; execute the shell command
516 (dired-run-shell-command
517 (dired-shell-stuff-it command file-list nil arg))))))
519 ;; Might use {,} for bash or csh:
520 (defvar dired-mark-prefix ""
521 "Prepended to marked files in dired shell commands.")
522 (defvar dired-mark-postfix ""
523 "Appended to marked files in dired shell commands.")
524 (defvar dired-mark-separator " "
525 "Separates marked files in dired shell commands.")
527 (defun dired-shell-stuff-it (command file-list on-each &optional raw-arg)
528 ;; "Make up a shell command line from COMMAND and FILE-LIST.
529 ;; If ON-EACH is t, COMMAND should be applied to each file, else
530 ;; simply concat all files and apply COMMAND to this.
531 ;; FILE-LIST's elements will be quoted for the shell."
532 ;; Might be redefined for smarter things and could then use RAW-ARG
533 ;; (coming from interactive P and currently ignored) to decide what to do.
534 ;; Smart would be a way to access basename or extension of file names.
535 (let ((stuff-it
536 (if (or (string-match dired-star-subst-regexp command)
537 (string-match dired-quark-subst-regexp command))
538 (lambda (x)
539 (let ((retval command))
540 (while (string-match
541 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
542 (setq retval (replace-match x t t retval 2)))
543 retval))
544 (lambda (x) (concat command dired-mark-separator x)))))
545 (if on-each
546 (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
547 (let ((files (mapconcat 'shell-quote-argument
548 file-list dired-mark-separator)))
549 (if (> (length file-list) 1)
550 (setq files (concat dired-mark-prefix files dired-mark-postfix)))
551 (funcall stuff-it files)))))
553 ;; This is an extra function so that it can be redefined by ange-ftp.
554 (defun dired-run-shell-command (command)
555 (let ((handler
556 (find-file-name-handler (directory-file-name default-directory)
557 'shell-command)))
558 (if handler (apply handler 'shell-command (list command))
559 (shell-command command)))
560 ;; Return nil for sake of nconc in dired-bunch-files.
561 nil)
563 ;; In Emacs 19 this will return program's exit status.
564 ;; This is a separate function so that ange-ftp can redefine it.
565 (defun dired-call-process (program discard &rest arguments)
566 ; "Run PROGRAM with output to current buffer unless DISCARD is t.
567 ;Remaining arguments are strings passed as command arguments to PROGRAM."
568 ;; Look for a handler for default-directory in case it is a remote file name.
569 (let ((handler
570 (find-file-name-handler (directory-file-name default-directory)
571 'dired-call-process)))
572 (if handler (apply handler 'dired-call-process
573 program discard arguments)
574 (apply 'call-process program nil (not discard) nil arguments))))
576 (defun dired-check-process (msg program &rest arguments)
577 ; "Display MSG while running PROGRAM, and check for output.
578 ;Remaining arguments are strings passed as command arguments to PROGRAM.
579 ; On error, insert output
580 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
581 ; Caller can cons up a list of failed args.
582 ;Else returns nil for success."
583 (let (err-buffer err (dir default-directory))
584 (message "%s..." msg)
585 (save-excursion
586 ;; Get a clean buffer for error output:
587 (setq err-buffer (get-buffer-create " *dired-check-process output*"))
588 (set-buffer err-buffer)
589 (erase-buffer)
590 (setq default-directory dir ; caller's default-directory
591 err (not (eq 0
592 (apply (function dired-call-process) program nil arguments))))
593 (if err
594 (progn
595 (dired-log (concat program " " (prin1-to-string arguments) "\n"))
596 (dired-log err-buffer)
597 (or arguments program t))
598 (kill-buffer err-buffer)
599 (message "%s...done" msg)
600 nil))))
602 ;; Commands that delete or redisplay part of the dired buffer.
604 (defun dired-kill-line (&optional arg)
605 (interactive "P")
606 (setq arg (prefix-numeric-value arg))
607 (let (buffer-read-only file)
608 (while (/= 0 arg)
609 (setq file (dired-get-filename nil t))
610 (if (not file)
611 (error "Can only kill file lines")
612 (save-excursion (and file
613 (dired-goto-subdir file)
614 (dired-kill-subdir)))
615 (delete-region (progn (beginning-of-line) (point))
616 (progn (forward-line 1) (point)))
617 (if (> arg 0)
618 (setq arg (1- arg))
619 (setq arg (1+ arg))
620 (forward-line -1))))
621 (dired-move-to-filename)))
623 ;;;###autoload
624 (defun dired-do-kill-lines (&optional arg fmt)
625 "Kill all marked lines (not the files).
626 With a prefix argument, kill that many lines starting with the current line.
627 \(A negative argument kills lines before the current line.)
628 To kill an entire subdirectory, go to its directory header line
629 and use this command with a prefix argument (the value does not matter)."
630 ;; Returns count of killed lines. FMT="" suppresses message.
631 (interactive "P")
632 (if arg
633 (if (dired-get-subdir)
634 (dired-kill-subdir)
635 (dired-kill-line arg))
636 (save-excursion
637 (goto-char (point-min))
638 (let (buffer-read-only (count 0))
639 (if (not arg) ; kill marked lines
640 (let ((regexp (dired-marker-regexp)))
641 (while (and (not (eobp))
642 (re-search-forward regexp nil t))
643 (setq count (1+ count))
644 (delete-region (progn (beginning-of-line) (point))
645 (progn (forward-line 1) (point)))))
646 ;; else kill unmarked lines
647 (while (not (eobp))
648 (if (or (dired-between-files)
649 (not (looking-at "^ ")))
650 (forward-line 1)
651 (setq count (1+ count))
652 (delete-region (point) (save-excursion
653 (forward-line 1)
654 (point))))))
655 (or (equal "" fmt)
656 (message (or fmt "Killed %d line%s.") count (dired-plural-s count)))
657 count))))
659 ;;;###end dired-cmd.el
661 ;;; 30K
662 ;;;###begin dired-cp.el
664 (defun dired-compress ()
665 ;; Compress or uncompress the current file.
666 ;; Return nil for success, offending filename else.
667 (let* (buffer-read-only
668 (from-file (dired-get-filename))
669 (new-file (dired-compress-file from-file)))
670 (if new-file
671 (let ((start (point)))
672 ;; Remove any preexisting entry for the name NEW-FILE.
673 (condition-case nil
674 (dired-remove-entry new-file)
675 (error nil))
676 (goto-char start)
677 ;; Now replace the current line with an entry for NEW-FILE.
678 (dired-update-file-line new-file) nil)
679 (dired-log (concat "Failed to compress" from-file))
680 from-file)))
682 (defvar dired-compress-file-suffixes
683 '(("\\.gz\\'" "" "gunzip")
684 ("\\.tgz\\'" ".tar" "gunzip")
685 ("\\.Z\\'" "" "uncompress")
686 ;; For .z, try gunzip. It might be an old gzip file,
687 ;; or it might be from compact? pack? (which?) but gunzip handles both.
688 ("\\.z\\'" "" "gunzip")
689 ("\\.dz\\'" "" "dictunzip")
690 ("\\.tbz\\'" ".tar" "bunzip2")
691 ("\\.bz2\\'" "" "bunzip2")
692 ;; This item controls naming for compression.
693 ("\\.tar\\'" ".tgz" nil))
694 "Control changes in file name suffixes for compression and uncompression.
695 Each element specifies one transformation rule, and has the form:
696 (REGEXP NEW-SUFFIX PROGRAM)
697 The rule applies when the old file name matches REGEXP.
698 The new file name is computed by deleting the part that matches REGEXP
699 (as well as anything after that), then adding NEW-SUFFIX in its place.
700 If PROGRAM is non-nil, the rule is an uncompression rule,
701 and uncompression is done by running PROGRAM.
702 Otherwise, the rule is a compression rule, and compression is done with gzip.")
704 ;;;###autoload
705 (defun dired-compress-file (file)
706 ;; Compress or uncompress FILE.
707 ;; Return the name of the compressed or uncompressed file.
708 ;; Return nil if no change in files.
709 (let ((handler (find-file-name-handler file 'dired-compress-file))
710 suffix newname
711 (suffixes dired-compress-file-suffixes))
712 ;; See if any suffix rule matches this file name.
713 (while suffixes
714 (let (case-fold-search)
715 (if (string-match (car (car suffixes)) file)
716 (setq suffix (car suffixes) suffixes nil))
717 (setq suffixes (cdr suffixes))))
718 ;; If so, compute desired new name.
719 (if suffix
720 (setq newname (concat (substring file 0 (match-beginning 0))
721 (nth 1 suffix))))
722 (cond (handler
723 (funcall handler 'dired-compress-file file))
724 ((file-symlink-p file)
725 nil)
726 ((and suffix (nth 2 suffix))
727 ;; We found an uncompression rule.
728 (if (not (dired-check-process (concat "Uncompressing " file)
729 (nth 2 suffix) file))
730 newname))
732 ;;; We don't recognize the file as compressed, so compress it.
733 ;;; Try gzip; if we don't have that, use compress.
734 (condition-case nil
735 (if (not (dired-check-process (concat "Compressing " file)
736 "gzip" "-f" file))
737 (let ((out-name
738 (if (file-exists-p (concat file ".gz"))
739 (concat file ".gz")
740 (concat file ".z"))))
741 ;; Rename the compressed file to NEWNAME
742 ;; if it hasn't got that name already.
743 (if (and newname (not (equal newname out-name)))
744 (progn
745 (rename-file out-name newname t)
746 newname)
747 out-name)))
748 (file-error
749 (if (not (dired-check-process (concat "Compressing " file)
750 "compress" "-f" file))
751 ;; Don't use NEWNAME with `compress'.
752 (concat file ".Z"))))))))
754 (defun dired-mark-confirm (op-symbol arg)
755 ;; Request confirmation from the user that the operation described
756 ;; by OP-SYMBOL is to be performed on the marked files.
757 ;; Confirmation consists in a y-or-n question with a file list
758 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
759 ;; The files used are determined by ARG (as in dired-get-marked-files).
760 (or (eq dired-no-confirm t)
761 (memq op-symbol dired-no-confirm)
762 (let ((files (dired-get-marked-files t arg))
763 (string (if (eq op-symbol 'compress) "Compress or uncompress"
764 (capitalize (symbol-name op-symbol)))))
765 (dired-mark-pop-up nil op-symbol files (function y-or-n-p)
766 (concat string " "
767 (dired-mark-prompt arg files) "? ")))))
769 (defun dired-map-over-marks-check (fun arg op-symbol &optional show-progress)
770 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
771 ; and display failures.
773 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
774 ; the short form of the filename) for a failure and probably logs a
775 ; detailed error explanation using function `dired-log'.
777 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
778 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
779 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
780 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
782 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
783 (if (dired-mark-confirm op-symbol arg)
784 (let* ((total-list;; all of FUN's return values
785 (dired-map-over-marks (funcall fun) arg show-progress))
786 (total (length total-list))
787 (failures (delq nil total-list))
788 (count (length failures))
789 (string (if (eq op-symbol 'compress) "Compress or uncompress"
790 (capitalize (symbol-name op-symbol)))))
791 (if (not failures)
792 (message "%s: %d file%s."
793 string total (dired-plural-s total))
794 ;; end this bunch of errors:
795 (dired-log-summary
796 (format "Failed to %s %d of %d file%s"
797 (downcase string) count total (dired-plural-s total))
798 failures)))))
800 (defvar dired-query-alist
801 '((?\y . y) (?\040 . y) ; `y' or SPC means accept once
802 (?n . n) (?\177 . n) ; `n' or DEL skips once
803 (?! . yes) ; `!' accepts rest
804 (?q . no) (?\e . no) ; `q' or ESC skips rest
805 ;; None of these keys quit - use C-g for that.
808 (defun dired-query (qs-var qs-prompt &rest qs-args)
809 ;; Query user and return nil or t.
810 ;; Store answer in symbol VAR (which must initially be bound to nil).
811 ;; Format PROMPT with ARGS.
812 ;; Binding variable help-form will help the user who types the help key.
813 (let* ((char (symbol-value qs-var))
814 (action (cdr (assoc char dired-query-alist))))
815 (cond ((eq 'yes action)
816 t) ; accept, and don't ask again
817 ((eq 'no action)
818 nil) ; skip, and don't ask again
819 (t;; no lasting effects from last time we asked - ask now
820 (let ((qprompt (concat qs-prompt
821 (if help-form
822 (format " [Type yn!q or %s] "
823 (key-description
824 (char-to-string help-char)))
825 " [Type y, n, q or !] ")))
826 result elt)
827 ;; Actually it looks nicer without cursor-in-echo-area - you can
828 ;; look at the dired buffer instead of at the prompt to decide.
829 (apply 'message qprompt qs-args)
830 (setq char (set qs-var (read-char)))
831 (while (not (setq elt (assoc char dired-query-alist)))
832 (message "Invalid char - type %c for help." help-char)
833 (ding)
834 (sit-for 1)
835 (apply 'message qprompt qs-args)
836 (setq char (set qs-var (read-char))))
837 (memq (cdr elt) '(t y yes)))))))
839 ;;;###autoload
840 (defun dired-do-compress (&optional arg)
841 "Compress or uncompress marked (or next ARG) files."
842 (interactive "P")
843 (dired-map-over-marks-check (function dired-compress) arg 'compress t))
845 ;; Commands for Emacs Lisp files - load and byte compile
847 (defun dired-byte-compile ()
848 ;; Return nil for success, offending file name else.
849 (let* ((filename (dired-get-filename))
850 elc-file buffer-read-only failure)
851 (condition-case err
852 (save-excursion (byte-compile-file filename))
853 (error
854 (setq failure err)))
855 (setq elc-file (byte-compile-dest-file filename))
856 (or (file-exists-p elc-file)
857 (setq failure t))
858 (if failure
859 (progn
860 (dired-log "Byte compile error for %s:\n%s\n" filename failure)
861 (dired-make-relative filename))
862 (dired-remove-file elc-file)
863 (forward-line) ; insert .elc after its .el file
864 (dired-add-file elc-file)
865 nil)))
867 ;;;###autoload
868 (defun dired-do-byte-compile (&optional arg)
869 "Byte compile marked (or next ARG) Emacs Lisp files."
870 (interactive "P")
871 (dired-map-over-marks-check (function dired-byte-compile) arg 'byte-compile t))
873 (defun dired-load ()
874 ;; Return nil for success, offending file name else.
875 (let ((file (dired-get-filename)) failure)
876 (condition-case err
877 (load file nil nil t)
878 (error (setq failure err)))
879 (if (not failure)
881 (dired-log "Load error for %s:\n%s\n" file failure)
882 (dired-make-relative file))))
884 ;;;###autoload
885 (defun dired-do-load (&optional arg)
886 "Load the marked (or next ARG) Emacs Lisp files."
887 (interactive "P")
888 (dired-map-over-marks-check (function dired-load) arg 'load t))
890 ;;;###autoload
891 (defun dired-do-redisplay (&optional arg test-for-subdir)
892 "Redisplay all marked (or next ARG) files.
893 If on a subdir line, redisplay that subdirectory. In that case,
894 a prefix arg lets you edit the `ls' switches used for the new listing."
895 ;; Moves point if the next ARG files are redisplayed.
896 (interactive "P\np")
897 (if (and test-for-subdir (dired-get-subdir))
898 (dired-insert-subdir
899 (dired-get-subdir)
900 (if arg (read-string "Switches for listing: " dired-actual-switches)))
901 (message "Redisplaying...")
902 ;; message much faster than making dired-map-over-marks show progress
903 (dired-uncache
904 (if (consp dired-directory) (car dired-directory) dired-directory))
905 (dired-map-over-marks (let ((fname (dired-get-filename)))
906 (message "Redisplaying... %s" fname)
907 (dired-update-file-line fname))
908 arg)
909 (dired-move-to-filename)
910 (message "Redisplaying...done")))
912 (defun dired-update-file-line (file)
913 ;; Delete the current line, and insert an entry for FILE.
914 ;; If FILE is nil, then just delete the current line.
915 ;; Keeps any marks that may be present in column one (doing this
916 ;; here is faster than with dired-add-entry's optional arg).
917 ;; Does not update other dired buffers. Use dired-relist-entry for that.
918 (beginning-of-line)
919 (let ((char (following-char)) (opoint (point))
920 (buffer-read-only))
921 (delete-region (point) (progn (forward-line 1) (point)))
922 (if file
923 (progn
924 (dired-add-entry file nil t)
925 ;; Replace space by old marker without moving point.
926 ;; Faster than goto+insdel inside a save-excursion?
927 (subst-char-in-region opoint (1+ opoint) ?\040 char))))
928 (dired-move-to-filename))
930 ;;;###autoload
931 (defun dired-add-file (filename &optional marker-char)
932 (dired-fun-in-all-buffers
933 (file-name-directory filename) (file-name-nondirectory filename)
934 (function dired-add-entry) filename marker-char))
936 (defun dired-add-entry (filename &optional marker-char relative)
937 ;; Add a new entry for FILENAME, optionally marking it
938 ;; with MARKER-CHAR (a character, else dired-marker-char is used).
939 ;; Note that this adds the entry `out of order' if files sorted by
940 ;; time, etc.
941 ;; At least this version inserts in the right subdirectory (if present).
942 ;; And it skips "." or ".." (see `dired-trivial-filenames').
943 ;; Hidden subdirs are exposed if a file is added there.
944 (setq filename (directory-file-name filename))
945 ;; Entry is always for files, even if they happen to also be directories
946 (let* ((opoint (point))
947 (cur-dir (dired-current-directory))
948 (orig-file-name filename)
949 (directory (if relative cur-dir (file-name-directory filename)))
950 reason)
951 (setq filename
952 (if relative
953 (file-relative-name filename directory)
954 (file-name-nondirectory filename))
955 reason
956 (catch 'not-found
957 (if (string= directory cur-dir)
958 (progn
959 (skip-chars-forward "^\r\n")
960 (if (eq (following-char) ?\r)
961 (dired-unhide-subdir))
962 ;; We are already where we should be, except when
963 ;; point is before the subdir line or its total line.
964 (let ((p (dired-after-subdir-garbage cur-dir)))
965 (if (< (point) p)
966 (goto-char p))))
967 ;; else try to find correct place to insert
968 (if (dired-goto-subdir directory)
969 (progn ;; unhide if necessary
970 (if (looking-at "\r") ;; point is at end of subdir line
971 (dired-unhide-subdir))
972 ;; found - skip subdir and `total' line
973 ;; and uninteresting files like . and ..
974 ;; This better not moves into the next subdir!
975 (dired-goto-next-nontrivial-file))
976 ;; not found
977 (throw 'not-found "Subdir not found")))
978 (let (buffer-read-only opoint)
979 (beginning-of-line)
980 (setq opoint (point))
981 ;; Don't expand `.'. Show just the file name within directory.
982 (let ((default-directory directory))
983 (dired-insert-directory directory
984 (concat dired-actual-switches "d")
985 (list filename)))
986 (goto-char opoint)
987 ;; Put in desired marker char.
988 (when marker-char
989 (let ((dired-marker-char
990 (if (integerp marker-char) marker-char dired-marker-char)))
991 (dired-mark nil)))
992 ;; Compensate for a bug in ange-ftp.
993 ;; It inserts the file's absolute name, rather than
994 ;; the relative one. That may be hard to fix since it
995 ;; is probably controlled by something in ftp.
996 (goto-char opoint)
997 (let ((inserted-name (dired-get-filename 'verbatim)))
998 (if (file-name-directory inserted-name)
999 (let (props)
1000 (end-of-line)
1001 (forward-char (- (length inserted-name)))
1002 (setq props (text-properties-at (point)))
1003 (delete-char (length inserted-name))
1004 (let ((pt (point)))
1005 (insert filename)
1006 (set-text-properties pt (point) props))
1007 (forward-char 1))
1008 (forward-line 1)))
1009 (forward-line -1)
1010 (if dired-after-readin-hook ;; the subdir-alist is not affected...
1011 (save-excursion ;; ...so we can run it right now:
1012 (save-restriction
1013 (beginning-of-line)
1014 (narrow-to-region (point) (save-excursion
1015 (forward-line 1) (point)))
1016 (run-hooks 'dired-after-readin-hook))))
1017 (dired-move-to-filename))
1018 ;; return nil if all went well
1019 nil))
1020 (if reason ; don't move away on failure
1021 (goto-char opoint))
1022 (not reason))) ; return t on success, nil else
1024 (defun dired-after-subdir-garbage (dir)
1025 ;; Return pos of first file line of DIR, skipping header and total
1026 ;; or wildcard lines.
1027 ;; Important: never moves into the next subdir.
1028 ;; DIR is assumed to be unhidden.
1029 ;; Will probably be redefined for VMS etc.
1030 (save-excursion
1031 (or (dired-goto-subdir dir) (error "This cannot happen"))
1032 (forward-line 1)
1033 (while (and (not (eolp)) ; don't cross subdir boundary
1034 (not (dired-move-to-filename)))
1035 (forward-line 1))
1036 (point)))
1038 ;;;###autoload
1039 (defun dired-remove-file (file)
1040 (dired-fun-in-all-buffers
1041 (file-name-directory file) (file-name-nondirectory file)
1042 (function dired-remove-entry) file))
1044 (defun dired-remove-entry (file)
1045 (save-excursion
1046 (and (dired-goto-file file)
1047 (let (buffer-read-only)
1048 (delete-region (progn (beginning-of-line) (point))
1049 (save-excursion (forward-line 1) (point)))))))
1051 ;;;###autoload
1052 (defun dired-relist-file (file)
1053 "Create or update the line for FILE in all Dired buffers it would belong in."
1054 (dired-fun-in-all-buffers (file-name-directory file)
1055 (file-name-nondirectory file)
1056 (function dired-relist-entry) file))
1058 (defun dired-relist-entry (file)
1059 ;; Relist the line for FILE, or just add it if it did not exist.
1060 ;; FILE must be an absolute file name.
1061 (let (buffer-read-only marker)
1062 ;; If cursor is already on FILE's line delete-region will cause
1063 ;; save-excursion to fail because of floating makers,
1064 ;; moving point to beginning of line. Sigh.
1065 (save-excursion
1066 (and (dired-goto-file file)
1067 (delete-region (progn (beginning-of-line)
1068 (setq marker (following-char))
1069 (point))
1070 (save-excursion (forward-line 1) (point))))
1071 (setq file (directory-file-name file))
1072 (dired-add-entry file (if (eq ?\040 marker) nil marker)))))
1074 ;;; Copy, move/rename, making hard and symbolic links
1076 (defcustom dired-recursive-copies nil
1077 "*Decide whether recursive copies are allowed.
1078 nil means no recursive copies.
1079 `always' means copy recursively without asking.
1080 `top' means ask for each directory at top level.
1081 Anything else means ask for each directory."
1082 :type '(choice :tag "Copy directories"
1083 (const :tag "No recursive copies" nil)
1084 (const :tag "Ask for each directory" t)
1085 (const :tag "Ask for each top directory only" top)
1086 (const :tag "Copy directories without asking" always))
1087 :group 'dired)
1089 (defcustom dired-backup-overwrite nil
1090 "*Non-nil if Dired should ask about making backups before overwriting files.
1091 Special value `always' suppresses confirmation."
1092 :type '(choice (const :tag "off" nil)
1093 (const :tag "suppress" always)
1094 (other :tag "ask" t))
1095 :group 'dired)
1097 (defvar dired-overwrite-confirmed)
1099 (defun dired-handle-overwrite (to)
1100 ;; Save old version of file TO that is to be overwritten.
1101 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1102 ;; from dired-create-files.
1103 (let (backup)
1104 (if (and dired-backup-overwrite
1105 dired-overwrite-confirmed
1106 (setq backup (car (find-backup-file-name to)))
1107 (or (eq 'always dired-backup-overwrite)
1108 (dired-query 'overwrite-backup-query
1109 (format "Make backup for existing file `%s'? "
1110 to))))
1111 (progn
1112 (rename-file to backup 0) ; confirm overwrite of old backup
1113 (dired-relist-entry backup)))))
1115 ;;;###autoload
1116 (defun dired-copy-file (from to ok-flag)
1117 (dired-handle-overwrite to)
1118 (condition-case ()
1119 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1120 dired-recursive-copies)
1121 (file-date-error (message "Can't set date")
1122 (sit-for 1))))
1124 (defun dired-copy-file-recursive (from to ok-flag &optional
1125 preserve-time top recursive)
1126 (if (and recursive
1127 (eq t (car (file-attributes from))) ; A directory, no symbolic link.
1128 (or (eq recursive 'always)
1129 (yes-or-no-p (format "Recursive copies of %s " from))))
1130 (let ((files (directory-files from nil dired-re-no-dot)))
1131 (if (eq recursive 'top) (setq recursive 'always)) ; Don't ask any more.
1132 (if (file-exists-p to)
1133 (or top (dired-handle-overwrite to))
1134 (make-directory to))
1135 (while files
1136 (dired-copy-file-recursive
1137 (expand-file-name (car files) from)
1138 (expand-file-name (car files) to)
1139 ok-flag preserve-time nil recursive)
1140 (setq files (cdr files))))
1141 (or top (dired-handle-overwrite to)) ; Just a file.
1142 (copy-file from to ok-flag dired-copy-preserve-time)))
1144 ;;;###autoload
1145 (defun dired-rename-file (file newname ok-if-already-exists)
1146 (dired-handle-overwrite newname)
1147 (rename-file file newname ok-if-already-exists) ; error is caught in -create-files
1148 ;; Silently rename the visited file of any buffer visiting this file.
1149 (and (get-file-buffer file)
1150 (with-current-buffer (get-file-buffer file)
1151 (set-visited-file-name newname nil t)))
1152 (dired-remove-file file)
1153 ;; See if it's an inserted subdir, and rename that, too.
1154 (dired-rename-subdir file newname))
1156 (defun dired-rename-subdir (from-dir to-dir)
1157 (setq from-dir (file-name-as-directory from-dir)
1158 to-dir (file-name-as-directory to-dir))
1159 (dired-fun-in-all-buffers from-dir nil
1160 (function dired-rename-subdir-1) from-dir to-dir)
1161 ;; Update visited file name of all affected buffers
1162 (let ((expanded-from-dir (expand-file-name from-dir))
1163 (blist (buffer-list)))
1164 (while blist
1165 (save-excursion
1166 (set-buffer (car blist))
1167 (if (and buffer-file-name
1168 (dired-in-this-tree buffer-file-name expanded-from-dir))
1169 (let ((modflag (buffer-modified-p))
1170 (to-file (dired-replace-in-string
1171 (concat "^" (regexp-quote from-dir))
1172 to-dir
1173 buffer-file-name)))
1174 (set-visited-file-name to-file)
1175 (set-buffer-modified-p modflag))))
1176 (setq blist (cdr blist)))))
1178 (defun dired-rename-subdir-1 (dir to)
1179 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1180 ;; one of its subdirectories is expanded in this buffer.
1181 (let ((expanded-dir (expand-file-name dir))
1182 (alist dired-subdir-alist)
1183 (elt nil))
1184 (while alist
1185 (setq elt (car alist)
1186 alist (cdr alist))
1187 (if (dired-in-this-tree (car elt) expanded-dir)
1188 ;; ELT's subdir is affected by the rename
1189 (dired-rename-subdir-2 elt dir to)))
1190 (if (equal dir default-directory)
1191 ;; if top level directory was renamed, lots of things have to be
1192 ;; updated:
1193 (progn
1194 (dired-unadvertise dir) ; we no longer dired DIR...
1195 (setq default-directory to
1196 dired-directory (expand-file-name;; this is correct
1197 ;; with and without wildcards
1198 (file-name-nondirectory dired-directory)
1199 to))
1200 (let ((new-name (file-name-nondirectory
1201 (directory-file-name dired-directory))))
1202 ;; try to rename buffer, but just leave old name if new
1203 ;; name would already exist (don't try appending "<%d>")
1204 (or (get-buffer new-name)
1205 (rename-buffer new-name)))
1206 ;; ... we dired TO now:
1207 (dired-advertise)))))
1209 (defun dired-rename-subdir-2 (elt dir to)
1210 ;; Update the headerline and dired-subdir-alist element of directory
1211 ;; described by alist-element ELT to reflect the moving of DIR to TO.
1212 ;; Thus, ELT describes either DIR itself or a subdir of DIR.
1213 (save-excursion
1214 (let ((regexp (regexp-quote (directory-file-name dir)))
1215 (newtext (directory-file-name to))
1216 buffer-read-only)
1217 (goto-char (dired-get-subdir-min elt))
1218 ;; Update subdir headerline in buffer
1219 (if (not (looking-at dired-subdir-regexp))
1220 (error "%s not found where expected - dired-subdir-alist broken?"
1221 dir)
1222 (goto-char (match-beginning 1))
1223 (if (re-search-forward regexp (match-end 1) t)
1224 (replace-match newtext t t)
1225 (error "Expected to find `%s' in headerline of %s" dir (car elt))))
1226 ;; Update buffer-local dired-subdir-alist
1227 (setcar elt
1228 (dired-normalize-subdir
1229 (dired-replace-in-string regexp newtext (car elt)))))))
1231 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1232 (defun dired-create-files (file-creator operation fn-list name-constructor
1233 &optional marker-char)
1235 ;; Create a new file for each from a list of existing files. The user
1236 ;; is queried, dired buffers are updated, and at the end a success or
1237 ;; failure message is displayed
1239 ;; FILE-CREATOR must accept three args: oldfile newfile ok-if-already-exists
1241 ;; It is called for each file and must create newfile, the entry of
1242 ;; which will be added. The user will be queried if the file already
1243 ;; exists. If oldfile is removed by FILE-CREATOR (i.e, it is a
1244 ;; rename), it is FILE-CREATOR's responsibility to update dired
1245 ;; buffers. FILE-CREATOR must abort by signaling a file-error if it
1246 ;; could not create newfile. The error is caught and logged.
1248 ;; OPERATION (a capitalized string, e.g. `Copy') describes the
1249 ;; operation performed. It is used for error logging.
1251 ;; FN-LIST is the list of files to copy (full absolute file names).
1253 ;; NAME-CONSTRUCTOR returns a newfile for every oldfile, or nil to
1254 ;; skip. If it skips files for other reasons than a direct user
1255 ;; query, it is supposed to tell why (using dired-log).
1257 ;; Optional MARKER-CHAR is a character with which to mark every
1258 ;; newfile's entry, or t to use the current marker character if the
1259 ;; oldfile was marked.
1261 (let (failures skipped (success-count 0) (total (length fn-list)))
1262 (let (to overwrite-query
1263 overwrite-backup-query) ; for dired-handle-overwrite
1264 (mapcar
1265 (function
1266 (lambda (from)
1267 (setq to (funcall name-constructor from))
1268 (if (equal to from)
1269 (progn
1270 (setq to nil)
1271 (dired-log "Cannot %s to same file: %s\n"
1272 (downcase operation) from)))
1273 (if (not to)
1274 (setq skipped (cons (dired-make-relative from) skipped))
1275 (let* ((overwrite (file-exists-p to))
1276 (dired-overwrite-confirmed ; for dired-handle-overwrite
1277 (and overwrite
1278 (let ((help-form '(format "\
1279 Type SPC or `y' to overwrite file `%s',
1280 DEL or `n' to skip to next,
1281 ESC or `q' to not overwrite any of the remaining files,
1282 `!' to overwrite all remaining files with no more questions." to)))
1283 (dired-query 'overwrite-query
1284 "Overwrite `%s'?" to))))
1285 ;; must determine if FROM is marked before file-creator
1286 ;; gets a chance to delete it (in case of a move).
1287 (actual-marker-char
1288 (cond ((integerp marker-char) marker-char)
1289 (marker-char (dired-file-marker from)) ; slow
1290 (t nil))))
1291 (condition-case err
1292 (progn
1293 (funcall file-creator from to dired-overwrite-confirmed)
1294 (if overwrite
1295 ;; If we get here, file-creator hasn't been aborted
1296 ;; and the old entry (if any) has to be deleted
1297 ;; before adding the new entry.
1298 (dired-remove-file to))
1299 (setq success-count (1+ success-count))
1300 (message "%s: %d of %d" operation success-count total)
1301 (dired-add-file to actual-marker-char))
1302 (file-error ; FILE-CREATOR aborted
1303 (progn
1304 (setq failures (cons (dired-make-relative from) failures))
1305 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1306 operation from to err))))))))
1307 fn-list))
1308 (cond
1309 (failures
1310 (dired-log-summary
1311 (format "%s failed for %d of %d file%s"
1312 operation (length failures) total
1313 (dired-plural-s total))
1314 failures))
1315 (skipped
1316 (dired-log-summary
1317 (format "%s: %d of %d file%s skipped"
1318 operation (length skipped) total
1319 (dired-plural-s total))
1320 skipped))
1322 (message "%s: %s file%s"
1323 operation success-count (dired-plural-s success-count)))))
1324 (dired-move-to-filename))
1326 (defun dired-do-create-files (op-symbol file-creator operation arg
1327 &optional marker-char op1
1328 how-to)
1329 "Create a new file for each marked file.
1330 Prompts user for target, which is a directory in which to create
1331 the new files. Target may be a plain file if only one marked
1332 file exists. The way the default for the target directory is
1333 computed depends on the value of `dired-dwim-target-directory'.
1334 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1335 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1336 FILE-CREATOR and OPERATION as in `dired-create-files'.
1337 ARG as in `dired-get-marked-files'.
1338 Optional arg MARKER-CHAR as in `dired-create-files'.
1339 Optional arg OP1 is an alternate form for OPERATION if there is
1340 only one file.
1341 Optional arg HOW-TO is used to set the value of the into-dir variable
1342 which determines how to treat target.
1343 If into-dir is set to nil then target is not regarded as a directory,
1344 there must be exactly one marked file, else error.
1345 Else if into-dir is set to a list, then target is a generalized
1346 directory (e.g. some sort of archive). The first element of into-dir
1347 must be a function with at least four arguments:
1348 operation as OPERATION above.
1349 rfn-list a list of the relative names for the marked files.
1350 fn-list a list of the absolute names for the marked files.
1351 target.
1352 The rest of into-dir are optional arguments.
1353 Else into-dir is not a list. Target is a directory.
1354 The marked file(s) are created inside the target directory.
1356 If HOW-TO is not given (or nil), then into-dir is set to true if
1357 target is a directory and otherwise to nil.
1358 Else if HOW-TO is t, then into-dir is set to nil.
1359 Else HOW-TO is assumed to be a function of one argument, target,
1360 that looks at target and returns a value for the into-dir
1361 variable. The function `dired-into-dir-with-symlinks' is provided
1362 for the case (common when creating symlinks) that symbolic
1363 links to directories are not to be considered as directories
1364 (as `file-directory-p' would if HOW-TO had been nil)."
1365 (or op1 (setq op1 operation))
1366 (let* ((fn-list (dired-get-marked-files nil arg))
1367 (rfn-list (mapcar (function dired-make-relative) fn-list))
1368 (dired-one-file ; fluid variable inside dired-create-files
1369 (and (consp fn-list) (null (cdr fn-list)) (car fn-list)))
1370 (target-dir (dired-dwim-target-directory))
1371 (default (and dired-one-file
1372 (expand-file-name (file-name-nondirectory (car fn-list))
1373 target-dir)))
1374 (target (expand-file-name ; fluid variable inside dired-create-files
1375 (dired-mark-read-file-name
1376 (concat (if dired-one-file op1 operation) " %s to: ")
1377 target-dir op-symbol arg rfn-list default)))
1378 (into-dir (cond ((null how-to)
1379 ;; Allow DOS/Windows users to change the letter
1380 ;; case of a directory. If we don't test these
1381 ;; conditions up front, file-directory-p below
1382 ;; will return t because the filesystem is
1383 ;; case-insensitive, and Emacs will try to move
1384 ;; foo -> foo/foo, which fails.
1385 (if (and (memq system-type '(ms-dos windows-nt cygwin))
1386 (eq op-symbol 'move)
1387 dired-one-file
1388 (string= (downcase
1389 (expand-file-name (car fn-list)))
1390 (downcase
1391 (expand-file-name target)))
1392 (not (string=
1393 (file-name-nondirectory (car fn-list))
1394 (file-name-nondirectory target))))
1396 (file-directory-p target)))
1397 ((eq how-to t) nil)
1398 (t (funcall how-to target)))))
1399 (if (and (consp into-dir) (functionp (car into-dir)))
1400 (apply (car into-dir) operation rfn-list fn-list target (cdr into-dir))
1401 (if (not (or dired-one-file into-dir))
1402 (error "Marked %s: target must be a directory: %s" operation target))
1403 ;; rename-file bombs when moving directories unless we do this:
1404 (or into-dir (setq target (directory-file-name target)))
1405 (dired-create-files
1406 file-creator operation fn-list
1407 (if into-dir ; target is a directory
1408 ;; This function uses fluid variable target when called
1409 ;; inside dired-create-files:
1410 (function
1411 (lambda (from)
1412 (expand-file-name (file-name-nondirectory from) target)))
1413 (function (lambda (from) target)))
1414 marker-char))))
1416 ;; Read arguments for a marked-files command that wants a file name,
1417 ;; perhaps popping up the list of marked files.
1418 ;; ARG is the prefix arg and indicates whether the files came from
1419 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1420 ;; If the current file was used, the list has but one element and ARG
1421 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1422 ;; DEFAULT is the default value to return if the user just hits RET;
1423 ;; if it is omitted or nil, then the name of the directory is used.
1425 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1426 &optional default)
1427 (dired-mark-pop-up
1428 nil op-symbol files
1429 (function read-file-name)
1430 (format prompt (dired-mark-prompt arg files)) dir default))
1432 (defun dired-dwim-target-directory ()
1433 ;; Try to guess which target directory the user may want.
1434 ;; If there is a dired buffer displayed in the next window, use
1435 ;; its current subdir, else use current subdir of this dired buffer.
1436 (let ((this-dir (and (eq major-mode 'dired-mode)
1437 (dired-current-directory))))
1438 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1439 (if dired-dwim-target
1440 (let* ((other-buf (window-buffer (next-window)))
1441 (other-dir (save-excursion
1442 (set-buffer other-buf)
1443 (and (eq major-mode 'dired-mode)
1444 (dired-current-directory)))))
1445 (or other-dir this-dir))
1446 this-dir)))
1448 ;;;###autoload
1449 (defun dired-create-directory (directory)
1450 "Create a directory called DIRECTORY."
1451 (interactive
1452 (list (read-file-name "Create directory: " (dired-current-directory))))
1453 (let ((expanded (directory-file-name (expand-file-name directory))))
1454 (make-directory expanded)
1455 (dired-add-file expanded)
1456 (dired-move-to-filename)))
1458 (defun dired-into-dir-with-symlinks (target)
1459 (and (file-directory-p target)
1460 (not (file-symlink-p target))))
1461 ;; This may not always be what you want, especially if target is your
1462 ;; home directory and it happens to be a symbolic link, as is often the
1463 ;; case with NFS and automounters. Or if you want to make symlinks
1464 ;; into directories that themselves are only symlinks, also quite
1465 ;; common.
1467 ;; So we don't use this function as value for HOW-TO in
1468 ;; dired-do-symlink, which has the minor disadvantage of
1469 ;; making links *into* a symlinked-dir, when you really wanted to
1470 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1471 ;; just have to remove that symlink by hand before making your marked
1472 ;; symlinks.
1474 (defvar dired-copy-how-to-fn nil
1475 "nil or a function used by `dired-do-copy' to determine target.
1476 See HOW-TO argument for `dired-do-create-files'.")
1478 ;;;###autoload
1479 (defun dired-do-copy (&optional arg)
1480 "Copy all marked (or next ARG) files, or copy the current file.
1481 This normally preserves the last-modified date when copying.
1482 When operating on just the current file, you specify the new name.
1483 When operating on multiple or marked files, you specify a directory,
1484 and new copies of these files are made in that directory
1485 with the same names that the files currently have. The default
1486 suggested for the target directory depends on the value of
1487 `dired-dwim-target', which see."
1488 (interactive "P")
1489 (let ((dired-recursive-copies dired-recursive-copies))
1490 (dired-do-create-files 'copy (function dired-copy-file)
1491 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1492 arg dired-keep-marker-copy
1493 nil dired-copy-how-to-fn)))
1495 ;;;###autoload
1496 (defun dired-do-symlink (&optional arg)
1497 "Make symbolic links to current file or all marked (or next ARG) files.
1498 When operating on just the current file, you specify the new name.
1499 When operating on multiple or marked files, you specify a directory
1500 and new symbolic links are made in that directory
1501 with the same names that the files currently have. The default
1502 suggested for the target directory depends on the value of
1503 `dired-dwim-target', which see."
1504 (interactive "P")
1505 (dired-do-create-files 'symlink (function make-symbolic-link)
1506 "Symlink" arg dired-keep-marker-symlink))
1508 ;;;###autoload
1509 (defun dired-do-hardlink (&optional arg)
1510 "Add names (hard links) current file or all marked (or next ARG) files.
1511 When operating on just the current file, you specify the new name.
1512 When operating on multiple or marked files, you specify a directory
1513 and new hard links are made in that directory
1514 with the same names that the files currently have. The default
1515 suggested for the target directory depends on the value of
1516 `dired-dwim-target', which see."
1517 (interactive "P")
1518 (dired-do-create-files 'hardlink (function dired-hardlink)
1519 "Hardlink" arg dired-keep-marker-hardlink))
1521 (defun dired-hardlink (file newname &optional ok-if-already-exists)
1522 (dired-handle-overwrite newname)
1523 ;; error is caught in -create-files
1524 (add-name-to-file file newname ok-if-already-exists)
1525 ;; Update the link count
1526 (dired-relist-file file))
1528 ;;;###autoload
1529 (defun dired-do-rename (&optional arg)
1530 "Rename current file or all marked (or next ARG) files.
1531 When renaming just the current file, you specify the new name.
1532 When renaming multiple or marked files, you specify a directory.
1533 This command also renames any buffers that are visiting the files.
1534 The default suggested for the target directory depends on the value
1535 of `dired-dwim-target', which see."
1536 (interactive "P")
1537 (dired-do-create-files 'move (function dired-rename-file)
1538 "Move" arg dired-keep-marker-rename "Rename"))
1539 ;;;###end dired-cp.el
1541 ;;; 5K
1542 ;;;###begin dired-re.el
1543 (defun dired-do-create-files-regexp
1544 (file-creator operation arg regexp newname &optional whole-name marker-char)
1545 ;; Create a new file for each marked file using regexps.
1546 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1547 ;; ARG as in dired-get-marked-files.
1548 ;; Matches each marked file against REGEXP and constructs the new
1549 ;; filename from NEWNAME (like in function replace-match).
1550 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1551 ;; instead of only the non-directory part of the file.
1552 ;; Optional arg MARKER-CHAR as in dired-create-files.
1553 (let* ((fn-list (dired-get-marked-files nil arg))
1554 (fn-count (length fn-list))
1555 (operation-prompt (concat operation " `%s' to `%s'?"))
1556 (rename-regexp-help-form (format "\
1557 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1558 `!' to %s all remaining matches with no more questions."
1559 (downcase operation)
1560 (downcase operation)))
1561 (regexp-name-constructor
1562 ;; Function to construct new filename using REGEXP and NEWNAME:
1563 (if whole-name ; easy (but rare) case
1564 (function
1565 (lambda (from)
1566 (let ((to (dired-string-replace-match regexp from newname))
1567 ;; must bind help-form directly around call to
1568 ;; dired-query
1569 (help-form rename-regexp-help-form))
1570 (if to
1571 (and (dired-query 'rename-regexp-query
1572 operation-prompt
1573 from
1576 (dired-log "%s: %s did not match regexp %s\n"
1577 operation from regexp)))))
1578 ;; not whole-name, replace non-directory part only
1579 (function
1580 (lambda (from)
1581 (let* ((new (dired-string-replace-match
1582 regexp (file-name-nondirectory from) newname))
1583 (to (and new ; nil means there was no match
1584 (expand-file-name new
1585 (file-name-directory from))))
1586 (help-form rename-regexp-help-form))
1587 (if to
1588 (and (dired-query 'rename-regexp-query
1589 operation-prompt
1590 (dired-make-relative from)
1591 (dired-make-relative to))
1593 (dired-log "%s: %s did not match regexp %s\n"
1594 operation (file-name-nondirectory from) regexp)))))))
1595 rename-regexp-query)
1596 (dired-create-files
1597 file-creator operation fn-list regexp-name-constructor marker-char)))
1599 (defun dired-mark-read-regexp (operation)
1600 ;; Prompt user about performing OPERATION.
1601 ;; Read and return list of: regexp newname arg whole-name.
1602 (let* ((whole-name
1603 (equal 0 (prefix-numeric-value current-prefix-arg)))
1604 (arg
1605 (if whole-name nil current-prefix-arg))
1606 (regexp
1607 (dired-read-regexp
1608 (concat (if whole-name "Abs. " "") operation " from (regexp): ")))
1609 (newname
1610 (read-string
1611 (concat (if whole-name "Abs. " "") operation " " regexp " to: "))))
1612 (list regexp newname arg whole-name)))
1614 ;;;###autoload
1615 (defun dired-do-rename-regexp (regexp newname &optional arg whole-name)
1616 "Rename selected files whose names match REGEXP to NEWNAME.
1618 With non-zero prefix argument ARG, the command operates on the next ARG
1619 files. Otherwise, it operates on all the marked files, or the current
1620 file if none are marked.
1622 As each match is found, the user must type a character saying
1623 what to do with it. For directions, type \\[help-command] at that time.
1624 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1625 REGEXP defaults to the last regexp used.
1627 With a zero prefix arg, renaming by regexp affects the absolute file name.
1628 Normally, only the non-directory part of the file name is used and changed."
1629 (interactive (dired-mark-read-regexp "Rename"))
1630 (dired-do-create-files-regexp
1631 (function dired-rename-file)
1632 "Rename" arg regexp newname whole-name dired-keep-marker-rename))
1634 ;;;###autoload
1635 (defun dired-do-copy-regexp (regexp newname &optional arg whole-name)
1636 "Copy selected files whose names match REGEXP to NEWNAME.
1637 See function `dired-do-rename-regexp' for more info."
1638 (interactive (dired-mark-read-regexp "Copy"))
1639 (let ((dired-recursive-copies nil)) ; No recursive copies.
1640 (dired-do-create-files-regexp
1641 (function dired-copy-file)
1642 (if dired-copy-preserve-time "Copy [-p]" "Copy")
1643 arg regexp newname whole-name dired-keep-marker-copy)))
1645 ;;;###autoload
1646 (defun dired-do-hardlink-regexp (regexp newname &optional arg whole-name)
1647 "Hardlink selected files whose names match REGEXP to NEWNAME.
1648 See function `dired-do-rename-regexp' for more info."
1649 (interactive (dired-mark-read-regexp "HardLink"))
1650 (dired-do-create-files-regexp
1651 (function add-name-to-file)
1652 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink))
1654 ;;;###autoload
1655 (defun dired-do-symlink-regexp (regexp newname &optional arg whole-name)
1656 "Symlink selected files whose names match REGEXP to NEWNAME.
1657 See function `dired-do-rename-regexp' for more info."
1658 (interactive (dired-mark-read-regexp "SymLink"))
1659 (dired-do-create-files-regexp
1660 (function make-symbolic-link)
1661 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink))
1663 (defun dired-create-files-non-directory
1664 (file-creator basename-constructor operation arg)
1665 ;; Perform FILE-CREATOR on the non-directory part of marked files
1666 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1667 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1668 (let (rename-non-directory-query)
1669 (dired-create-files
1670 file-creator
1671 operation
1672 (dired-get-marked-files nil arg)
1673 (function
1674 (lambda (from)
1675 (let ((to (concat (file-name-directory from)
1676 (funcall basename-constructor
1677 (file-name-nondirectory from)))))
1678 (and (let ((help-form (format "\
1679 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1680 `!' to %s all remaining matches with no more questions."
1681 (downcase operation)
1682 (downcase operation))))
1683 (dired-query 'rename-non-directory-query
1684 (concat operation " `%s' to `%s'")
1685 (dired-make-relative from)
1686 (dired-make-relative to)))
1687 to))))
1688 dired-keep-marker-rename)))
1690 (defun dired-rename-non-directory (basename-constructor operation arg)
1691 (dired-create-files-non-directory
1692 (function dired-rename-file)
1693 basename-constructor operation arg))
1695 ;;;###autoload
1696 (defun dired-upcase (&optional arg)
1697 "Rename all marked (or next ARG) files to upper case."
1698 (interactive "P")
1699 (dired-rename-non-directory (function upcase) "Rename upcase" arg))
1701 ;;;###autoload
1702 (defun dired-downcase (&optional arg)
1703 "Rename all marked (or next ARG) files to lower case."
1704 (interactive "P")
1705 (dired-rename-non-directory (function downcase) "Rename downcase" arg))
1707 ;;;###end dired-re.el
1709 ;;; 13K
1710 ;;;###begin dired-ins.el
1712 ;;;###autoload
1713 (defun dired-maybe-insert-subdir (dirname &optional
1714 switches no-error-if-not-dir-p)
1715 "Insert this subdirectory into the same dired buffer.
1716 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1717 else inserts it at its natural place (as `ls -lR' would have done).
1718 With a prefix arg, you may edit the ls switches used for this listing.
1719 You can add `R' to the switches to expand the whole tree starting at
1720 this subdirectory.
1721 This function takes some pains to conform to `ls -lR' output."
1722 (interactive
1723 (list (dired-get-filename)
1724 (if current-prefix-arg
1725 (read-string "Switches for listing: " dired-actual-switches))))
1726 (let ((opoint (point)))
1727 ;; We don't need a marker for opoint as the subdir is always
1728 ;; inserted *after* opoint.
1729 (setq dirname (file-name-as-directory dirname))
1730 (or (and (not switches)
1731 (dired-goto-subdir dirname))
1732 (dired-insert-subdir dirname switches no-error-if-not-dir-p))
1733 ;; Push mark so that it's easy to find back. Do this after the
1734 ;; insert message so that the user sees the `Mark set' message.
1735 (push-mark opoint)))
1737 ;;;###autoload
1738 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
1739 "Insert this subdirectory into the same dired buffer.
1740 If it is already present, overwrites previous entry,
1741 else inserts it at its natural place (as `ls -lR' would have done).
1742 With a prefix arg, you may edit the `ls' switches used for this listing.
1743 You can add `R' to the switches to expand the whole tree starting at
1744 this subdirectory.
1745 This function takes some pains to conform to `ls -lR' output."
1746 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1747 ;; Prospero where dired-ls does the right thing, but
1748 ;; file-directory-p has not been redefined.
1749 (interactive
1750 (list (dired-get-filename)
1751 (if current-prefix-arg
1752 (read-string "Switches for listing: " dired-actual-switches))))
1753 (setq dirname (file-name-as-directory (expand-file-name dirname)))
1754 (dired-insert-subdir-validate dirname switches)
1755 (or no-error-if-not-dir-p
1756 (file-directory-p dirname)
1757 (error "Attempt to insert a non-directory: %s" dirname))
1758 (let ((elt (assoc dirname dired-subdir-alist))
1759 switches-have-R mark-alist case-fold-search buffer-read-only)
1760 ;; case-fold-search is nil now, so we can test for capital `R':
1761 (if (setq switches-have-R (and switches (string-match "R" switches)))
1762 ;; avoid duplicated subdirs
1763 (setq mark-alist (dired-kill-tree dirname t)))
1764 (if elt
1765 ;; If subdir is already present, remove it and remember its marks
1766 (setq mark-alist (nconc (dired-insert-subdir-del elt) mark-alist))
1767 (dired-insert-subdir-newpos dirname)) ; else compute new position
1768 (dired-insert-subdir-doupdate
1769 dirname elt (dired-insert-subdir-doinsert dirname switches))
1770 (if switches-have-R (dired-build-subdir-alist switches))
1771 (dired-initial-position dirname)
1772 (save-excursion (dired-mark-remembered mark-alist))))
1774 ;; This is a separate function for dired-vms.
1775 (defun dired-insert-subdir-validate (dirname &optional switches)
1776 ;; Check that it is valid to insert DIRNAME with SWITCHES.
1777 ;; Signal an error if invalid (e.g. user typed `i' on `..').
1778 (or (dired-in-this-tree dirname (expand-file-name default-directory))
1779 (error "%s: not in this directory tree" dirname))
1780 (if switches
1781 (let (case-fold-search)
1782 (mapcar
1783 (function
1784 (lambda (x)
1785 (or (eq (null (string-match x switches))
1786 (null (string-match x dired-actual-switches)))
1787 (error "Can't have dirs with and without -%s switches together"
1788 x))))
1789 ;; all switches that make a difference to dired-get-filename:
1790 '("F" "b")))))
1792 (defun dired-alist-add (dir new-marker)
1793 ;; Add new DIR at NEW-MARKER. Sort alist.
1794 (dired-alist-add-1 dir new-marker)
1795 (dired-alist-sort))
1797 (defun dired-alist-sort ()
1798 ;; Keep the alist sorted on buffer position.
1799 (setq dired-subdir-alist
1800 (sort dired-subdir-alist
1801 (function (lambda (elt1 elt2)
1802 (> (dired-get-subdir-min elt1)
1803 (dired-get-subdir-min elt2)))))))
1805 (defun dired-kill-tree (dirname &optional remember-marks)
1806 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
1807 With optional arg REMEMBER-MARKS, return an alist of marked files."
1808 (interactive "DKill tree below directory: ")
1809 (setq dirname (expand-file-name dirname))
1810 (let ((s-alist dired-subdir-alist) dir m-alist)
1811 (while s-alist
1812 (setq dir (car (car s-alist))
1813 s-alist (cdr s-alist))
1814 (if (and (not (string-equal dir dirname))
1815 (dired-in-this-tree dir dirname)
1816 (dired-goto-subdir dir))
1817 (setq m-alist (nconc (dired-kill-subdir remember-marks) m-alist))))
1818 m-alist))
1820 (defun dired-insert-subdir-newpos (new-dir)
1821 ;; Find pos for new subdir, according to tree order.
1822 ;;(goto-char (point-max))
1823 (let ((alist dired-subdir-alist) elt dir pos new-pos)
1824 (while alist
1825 (setq elt (car alist)
1826 alist (cdr alist)
1827 dir (car elt)
1828 pos (dired-get-subdir-min elt))
1829 (if (dired-tree-lessp dir new-dir)
1830 ;; Insert NEW-DIR after DIR
1831 (setq new-pos (dired-get-subdir-max elt)
1832 alist nil)))
1833 (goto-char new-pos))
1834 ;; want a separating newline between subdirs
1835 (or (eobp)
1836 (forward-line -1))
1837 (insert "\n")
1838 (point))
1840 (defun dired-insert-subdir-del (element)
1841 ;; Erase an already present subdir (given by ELEMENT) from buffer.
1842 ;; Move to that buffer position. Return a mark-alist.
1843 (let ((begin-marker (dired-get-subdir-min element)))
1844 (goto-char begin-marker)
1845 ;; Are at beginning of subdir (and inside it!). Now determine its end:
1846 (goto-char (dired-subdir-max))
1847 (or (eobp);; want a separating newline _between_ subdirs:
1848 (forward-char -1))
1849 (prog1
1850 (dired-remember-marks begin-marker (point))
1851 (delete-region begin-marker (point)))))
1853 (defun dired-insert-subdir-doinsert (dirname switches)
1854 ;; Insert ls output after point.
1855 ;; Return the boundary of the inserted text (as list of BEG and END).
1856 (save-excursion
1857 (let ((begin (point)))
1858 (message "Reading directory %s..." dirname)
1859 (let ((dired-actual-switches
1860 (or switches
1861 (dired-replace-in-string "R" "" dired-actual-switches))))
1862 (if (equal dirname (car (car (last dired-subdir-alist))))
1863 ;; If doing the top level directory of the buffer,
1864 ;; redo it as specified in dired-directory.
1865 (dired-readin-insert)
1866 (dired-insert-directory dirname dired-actual-switches nil nil t)))
1867 (message "Reading directory %s...done" dirname)
1868 (list begin (point)))))
1870 (defun dired-insert-subdir-doupdate (dirname elt beg-end)
1871 ;; Point is at the correct subdir alist position for ELT,
1872 ;; BEG-END is the subdir-region (as list of begin and end).
1873 (if elt ; subdir was already present
1874 ;; update its position (should actually be unchanged)
1875 (set-marker (dired-get-subdir-min elt) (point-marker))
1876 (dired-alist-add dirname (point-marker)))
1877 ;; The hook may depend on the subdir-alist containing the just
1878 ;; inserted subdir, so run it after dired-alist-add:
1879 (if dired-after-readin-hook
1880 (save-excursion
1881 (let ((begin (nth 0 beg-end))
1882 (end (nth 1 beg-end)))
1883 (goto-char begin)
1884 (save-restriction
1885 (narrow-to-region begin end)
1886 ;; hook may add or delete lines, but the subdir boundary
1887 ;; marker floats
1888 (run-hooks 'dired-after-readin-hook))))))
1890 (defun dired-tree-lessp (dir1 dir2)
1891 ;; Lexicographic order on file name components, like `ls -lR':
1892 ;; DIR1 < DIR2 iff DIR1 comes *before* DIR2 in an `ls -lR' listing,
1893 ;; i.e., iff DIR1 is a (grand)parent dir of DIR2,
1894 ;; or DIR1 and DIR2 are in the same parentdir and their last
1895 ;; components are string-lessp.
1896 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
1897 ;; string-lessp could arguably be replaced by file-newer-than-file-p
1898 ;; if dired-actual-switches contained `t'.
1899 (setq dir1 (file-name-as-directory dir1)
1900 dir2 (file-name-as-directory dir2))
1901 (let ((components-1 (dired-split "/" dir1))
1902 (components-2 (dired-split "/" dir2)))
1903 (while (and components-1
1904 components-2
1905 (equal (car components-1) (car components-2)))
1906 (setq components-1 (cdr components-1)
1907 components-2 (cdr components-2)))
1908 (let ((c1 (car components-1))
1909 (c2 (car components-2)))
1911 (cond ((and c1 c2)
1912 (string-lessp c1 c2))
1913 ((and (null c1) (null c2))
1914 nil) ; they are equal, not lessp
1915 ((null c1) ; c2 is a subdir of c1: c1<c2
1917 ((null c2) ; c1 is a subdir of c2: c1>c2
1918 nil)
1919 (t (error "This can't happen"))))))
1921 ;; There should be a builtin split function - inverse to mapconcat.
1922 (defun dired-split (pat str &optional limit)
1923 "Splitting on regexp PAT, turn string STR into a list of substrings.
1924 Optional third arg LIMIT (>= 1) is a limit to the length of the
1925 resulting list.
1926 Thus, if SEP is a regexp that only matches itself,
1928 (mapconcat 'identity (dired-split SEP STRING) SEP)
1930 is always equal to STRING."
1931 (let* ((start (string-match pat str))
1932 (result (list (substring str 0 start)))
1933 (count 1)
1934 (end (if start (match-end 0))))
1935 (if end ; else nothing left
1936 (while (and (or (not (integerp limit))
1937 (< count limit))
1938 (string-match pat str end))
1939 (setq start (match-beginning 0)
1940 count (1+ count)
1941 result (cons (substring str end start) result)
1942 end (match-end 0)
1943 start end)
1945 (if (and (or (not (integerp limit))
1946 (< count limit))
1947 end) ; else nothing left
1948 (setq result
1949 (cons (substring str end) result)))
1950 (nreverse result)))
1952 ;;; moving by subdirectories
1954 ;;;###autoload
1955 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip)
1956 "Go to previous subdirectory, regardless of level.
1957 When called interactively and not on a subdir line, go to this subdir's line."
1958 ;;(interactive "p")
1959 (interactive
1960 (list (if current-prefix-arg
1961 (prefix-numeric-value current-prefix-arg)
1962 ;; if on subdir start already, don't stay there!
1963 (if (dired-get-subdir) 1 0))))
1964 (dired-next-subdir (- arg) no-error-if-not-found no-skip))
1966 (defun dired-subdir-min ()
1967 (save-excursion
1968 (if (not (dired-prev-subdir 0 t t))
1969 (error "Not in a subdir!")
1970 (point))))
1972 ;;;###autoload
1973 (defun dired-goto-subdir (dir)
1974 "Go to end of header line of DIR in this dired buffer.
1975 Return value of point on success, otherwise return nil.
1976 The next char is either \\n, or \\r if DIR is hidden."
1977 (interactive
1978 (prog1 ; let push-mark display its message
1979 (list (expand-file-name
1980 (completing-read "Goto in situ directory: " ; prompt
1981 dired-subdir-alist ; table
1982 nil ; predicate
1983 t ; require-match
1984 (dired-current-directory))))
1985 (push-mark)))
1986 (setq dir (file-name-as-directory dir))
1987 (let ((elt (assoc dir dired-subdir-alist)))
1988 (and elt
1989 (goto-char (dired-get-subdir-min elt))
1990 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
1991 ;; at either \r or \n after this function succeeds.
1992 (progn (skip-chars-forward "^\r\n")
1993 (point)))))
1995 ;;;###autoload
1996 (defun dired-mark-subdir-files ()
1997 "Mark all files except `.' and `..' in current subdirectory.
1998 If the Dired buffer shows multiple directories, this command
1999 marks the files listed in the subdirectory that point is in."
2000 (interactive)
2001 (let ((p-min (dired-subdir-min)))
2002 (dired-mark-files-in-region p-min (dired-subdir-max))))
2004 ;;;###autoload
2005 (defun dired-kill-subdir (&optional remember-marks)
2006 "Remove all lines of current subdirectory.
2007 Lower levels are unaffected."
2008 ;; With optional REMEMBER-MARKS, return a mark-alist.
2009 (interactive)
2010 (let ((beg (dired-subdir-min))
2011 (end (dired-subdir-max))
2012 buffer-read-only cur-dir)
2013 (setq cur-dir (dired-current-directory))
2014 (if (equal cur-dir default-directory)
2015 (error "Attempt to kill top level directory"))
2016 (prog1
2017 (if remember-marks (dired-remember-marks beg end))
2018 (delete-region beg end)
2019 (if (eobp) ; don't leave final blank line
2020 (delete-char -1))
2021 (dired-unsubdir cur-dir))))
2023 (defun dired-unsubdir (dir)
2024 ;; Remove DIR from the alist
2025 (setq dired-subdir-alist
2026 (delq (assoc dir dired-subdir-alist) dired-subdir-alist)))
2028 ;;;###autoload
2029 (defun dired-tree-up (arg)
2030 "Go up ARG levels in the dired tree."
2031 (interactive "p")
2032 (let ((dir (dired-current-directory)))
2033 (while (>= arg 1)
2034 (setq arg (1- arg)
2035 dir (file-name-directory (directory-file-name dir))))
2036 ;;(setq dir (expand-file-name dir))
2037 (or (dired-goto-subdir dir)
2038 (error "Cannot go up to %s - not in this tree" dir))))
2040 ;;;###autoload
2041 (defun dired-tree-down ()
2042 "Go down in the dired tree."
2043 (interactive)
2044 (let ((dir (dired-current-directory)) ; has slash
2045 pos case-fold-search) ; filenames are case sensitive
2046 (let ((rest (reverse dired-subdir-alist)) elt)
2047 (while rest
2048 (setq elt (car rest)
2049 rest (cdr rest))
2050 (if (dired-in-this-tree (directory-file-name (car elt)) dir)
2051 (setq rest nil
2052 pos (dired-goto-subdir (car elt))))))
2053 (if pos
2054 (goto-char pos)
2055 (error "At the bottom"))))
2057 ;;; hiding
2059 (defun dired-unhide-subdir ()
2060 (let (buffer-read-only)
2061 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?\r ?\n)))
2063 (defun dired-hide-check ()
2064 (or selective-display
2065 (error "selective-display must be t for subdir hiding to work!")))
2067 (defun dired-subdir-hidden-p (dir)
2068 (and selective-display
2069 (save-excursion
2070 (dired-goto-subdir dir)
2071 (looking-at "\r"))))
2073 ;;;###autoload
2074 (defun dired-hide-subdir (arg)
2075 "Hide or unhide the current subdirectory and move to next directory.
2076 Optional prefix arg is a repeat factor.
2077 Use \\[dired-hide-all] to (un)hide all directories."
2078 (interactive "p")
2079 (dired-hide-check)
2080 (while (>= (setq arg (1- arg)) 0)
2081 (let* ((cur-dir (dired-current-directory))
2082 (hidden-p (dired-subdir-hidden-p cur-dir))
2083 (elt (assoc cur-dir dired-subdir-alist))
2084 (end-pos (1- (dired-get-subdir-max elt)))
2085 buffer-read-only)
2086 ;; keep header line visible, hide rest
2087 (goto-char (dired-get-subdir-min elt))
2088 (skip-chars-forward "^\n\r")
2089 (if hidden-p
2090 (subst-char-in-region (point) end-pos ?\r ?\n)
2091 (subst-char-in-region (point) end-pos ?\n ?\r)))
2092 (dired-next-subdir 1 t)))
2094 ;;;###autoload
2095 (defun dired-hide-all (arg)
2096 "Hide all subdirectories, leaving only their header lines.
2097 If there is already something hidden, make everything visible again.
2098 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2099 (interactive "P")
2100 (dired-hide-check)
2101 (let (buffer-read-only)
2102 (if (save-excursion
2103 (goto-char (point-min))
2104 (search-forward "\r" nil t))
2105 ;; unhide - bombs on \r in filenames
2106 (subst-char-in-region (point-min) (point-max) ?\r ?\n)
2107 ;; hide
2108 (let ((pos (point-max)) ; pos of end of last directory
2109 (alist dired-subdir-alist))
2110 (while alist ; while there are dirs before pos
2111 (subst-char-in-region (dired-get-subdir-min (car alist)) ; pos of prev dir
2112 (save-excursion
2113 (goto-char pos) ; current dir
2114 ;; we're somewhere on current dir's line
2115 (forward-line -1)
2116 (point))
2117 ?\n ?\r)
2118 (setq pos (dired-get-subdir-min (car alist))) ; prev dir gets current dir
2119 (setq alist (cdr alist)))))))
2121 ;;;###end dired-ins.el
2124 ;; Functions for searching in tags style among marked files.
2126 ;;;###autoload
2127 (defun dired-do-search (regexp)
2128 "Search through all marked files for a match for REGEXP.
2129 Stops when a match is found.
2130 To continue searching for next match, use command \\[tags-loop-continue]."
2131 (interactive "sSearch marked files (regexp): ")
2132 (tags-search regexp '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2134 ;;;###autoload
2135 (defun dired-do-query-replace-regexp (from to &optional delimited)
2136 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2137 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2138 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2139 with the command \\[tags-loop-continue]."
2140 (interactive
2141 "sQuery replace in marked files (regexp): \nsQuery replace %s by: \nP")
2142 (dolist (file (dired-get-marked-files nil nil 'dired-nondirectory-p))
2143 (let ((buffer (get-file-buffer file)))
2144 (if (and buffer (with-current-buffer buffer
2145 buffer-read-only))
2146 (error "File `%s' is visited read-only" file))))
2147 (tags-query-replace from to delimited
2148 '(dired-get-marked-files nil nil 'dired-nondirectory-p)))
2150 (defun dired-nondirectory-p (file)
2151 (not (file-directory-p file)))
2153 ;;;###autoload
2154 (defun dired-show-file-type (file &optional deref-symlinks)
2155 "Print the type of FILE, according to the `file' command.
2156 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2157 true then the type of the file linked to by FILE is printed instead."
2158 (interactive (list (dired-get-filename t) current-prefix-arg))
2159 (with-temp-buffer
2160 (if deref-symlinks
2161 (call-process "file" nil t t "-L" "--" file)
2162 (call-process "file" nil t t "--" file))
2163 (when (bolp)
2164 (backward-delete-char 1))
2165 (message "%s" (buffer-string))))
2167 (provide 'dired-aux)
2169 ;;; arch-tag: 4b508de9-a153-423d-8d3f-a1bbd86f4f60
2170 ;;; dired-aux.el ends here