1 ;;; dired-aux.el --- less commonly used parts of dired
3 ;; Copyright (C) 1985-1986, 1992, 1994, 1998, 2000-2011
4 ;; Free Software Foundation, Inc.
6 ;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
11 ;; This file is part of GNU Emacs.
13 ;; GNU Emacs is free software: you can redistribute it and/or modify
14 ;; it under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation, either version 3 of the License, or
16 ;; (at your option) any later version.
18 ;; GNU Emacs is distributed in the hope that it will be useful,
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ;; GNU General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
28 ;; The parts of dired mode not normally used. This is a space-saving hack
29 ;; to avoid having to load a large mode when all that's wanted are a few
32 ;; Rewritten in 1990/1991 to add tree features, file marking and
33 ;; sorting by Sebastian Kremer <sk@thp.uni-koeln.de>.
34 ;; Finished up by rms in 1992.
38 ;; We need macros in dired.el to compile properly,
39 ;; and we call subroutines in it too.
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.")
48 ;;;###begin dired-cmd.el
49 ;; Diffing and compressing
51 (defconst dired-star-subst-regexp
"\\(^\\|[ \t]\\)\\*\\([ \t]\\|$\\)")
52 (defconst dired-quark-subst-regexp
"\\(^\\|[ \t]\\)\\?\\([ \t]\\|$\\)")
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'."
63 (let* ((current (dired-get-filename t
))
64 ;; Get the file at the mark.
65 (file-at-mark (if (mark t
)
66 (save-excursion (goto-char (mark t
))
67 (dired-get-filename t t
))))
68 ;; Use it as default if it's not the same as the current file,
69 ;; and the target dir is the current dir or the mark is active.
70 (default (if (and (not (equal file-at-mark current
))
71 (or (equal (dired-dwim-target-directory)
72 (dired-current-directory))
75 (target-dir (if default
76 (dired-current-directory)
77 (dired-dwim-target-directory)))
78 (defaults (dired-dwim-target-defaults (list current
) target-dir
)))
81 (minibuffer-with-setup-hook
83 (set (make-local-variable 'minibuffer-default-add-function
) nil
)
84 (setq minibuffer-default defaults
))
86 (format "Diff %s with%s: " current
87 (if default
(format " (default %s)" default
) ""))
88 target-dir default t
))
89 (if current-prefix-arg
90 (read-string "Options for diff: "
91 (if (stringp diff-switches
)
93 (mapconcat 'identity diff-switches
" ")))))))
94 (let ((current (dired-get-filename t
)))
95 (when (or (equal (expand-file-name file
)
96 (expand-file-name current
))
97 (and (file-directory-p file
)
98 (equal (expand-file-name current file
)
99 (expand-file-name current
))))
100 (error "Attempt to compare the file to itself"))
101 (diff file current switches
)))
104 (defun dired-backup-diff (&optional switches
)
105 "Diff this file with its backup file or vice versa.
106 Uses the latest backup, if there are several numerical backups.
107 If this file is a backup, diff it with its original.
108 The backup file is the first file given to `diff'.
109 With prefix arg, prompt for argument SWITCHES which is options for `diff'."
111 (if current-prefix-arg
112 (list (read-string "Options for diff: "
113 (if (stringp diff-switches
)
115 (mapconcat 'identity diff-switches
" "))))
117 (diff-backup (dired-get-filename) switches
))
120 (defun dired-compare-directories (dir2 predicate
)
121 "Mark files with different file attributes in two dired buffers.
122 Compare file attributes of files in the current directory
123 with file attributes in directory DIR2 using PREDICATE on pairs of files
124 with the same name. Mark files for which PREDICATE returns non-nil.
125 Mark files with different names if PREDICATE is nil (or interactively
126 with empty input at the predicate prompt).
128 PREDICATE is a Lisp expression that can refer to the following variables:
130 size1, size2 - file size in bytes
131 mtime1, mtime2 - last modification time in seconds, as a float
132 fa1, fa2 - list of file attributes
133 returned by function `file-attributes'
135 where 1 refers to attribute of file in the current dired buffer
136 and 2 to attribute of file in second dired buffer.
138 Examples of PREDICATE:
140 (> mtime1 mtime2) - mark newer files
141 (not (= size1 size2)) - mark files with different sizes
142 (not (string= (nth 8 fa1) (nth 8 fa2))) - mark files with different modes
143 (not (and (= (nth 2 fa1) (nth 2 fa2)) - mark files with different UID
144 (= (nth 3 fa1) (nth 3 fa2)))) and GID."
147 (let* ((target-dir (dired-dwim-target-directory))
148 (defaults (dired-dwim-target-defaults nil target-dir
)))
149 (minibuffer-with-setup-hook
151 (set (make-local-variable 'minibuffer-default-add-function
) nil
)
152 (setq minibuffer-default defaults
))
153 (read-directory-name (format "Compare %s with: "
154 (dired-current-directory))
155 target-dir target-dir t
)))
156 (read-from-minibuffer "Mark if (lisp expr or RET): " nil nil t nil
"nil")))
157 (let* ((dir1 (dired-current-directory))
158 (file-alist1 (dired-files-attributes dir1
))
159 (file-alist2 (dired-files-attributes dir2
))
160 file-list1 file-list2
)
161 (setq file-alist1
(delq (assoc "." file-alist1
) file-alist1
))
162 (setq file-alist1
(delq (assoc ".." file-alist1
) file-alist1
))
163 (setq file-alist2
(delq (assoc "." file-alist2
) file-alist2
))
164 (setq file-alist2
(delq (assoc ".." file-alist2
) file-alist2
))
165 (setq file-list1
(mapcar
167 (dired-file-set-difference
168 file-alist1 file-alist2
172 (dired-file-set-difference
173 file-alist2 file-alist1
175 (dired-fun-in-all-buffers
179 (member (dired-get-filename nil t
) file-list1
) nil
)))
180 (dired-fun-in-all-buffers
184 (member (dired-get-filename nil t
) file-list2
) nil
)))
185 (message "Marked in dir1: %s files, in dir2: %s files"
187 (length file-list2
))))
189 (defun dired-file-set-difference (list1 list2 predicate
)
190 "Combine LIST1 and LIST2 using a set-difference operation.
191 The result list contains all file items that appear in LIST1 but not LIST2.
192 This is a non-destructive function; it makes a copy of the data if necessary
193 to avoid corrupting the original LIST1 and LIST2.
194 PREDICATE (see `dired-compare-directories') is an additional match
195 condition. Two file items are considered to match if they are equal
196 *and* PREDICATE evaluates to t."
197 (if (or (null list1
) (null list2
))
200 (dolist (file1 list1
)
201 (unless (let ((list list2
))
203 (not (let* ((file2 (car list
))
204 (fa1 (car (cddr file1
)))
205 (fa2 (car (cddr file2
)))
208 (mtime1 (float-time (nth 5 fa1
)))
209 (mtime2 (float-time (nth 5 fa2
))))
211 (equal (car file1
) (car file2
))
212 (not (eval predicate
))))))
213 (setq list
(cdr list
)))
215 (setq res
(cons file1 res
))))
218 (defun dired-files-attributes (dir)
219 "Return a list of all file names and attributes from DIR.
220 List has a form of (file-name full-file-name (attribute-list))."
223 (let ((full-file-name (expand-file-name file-name dir
)))
226 (file-attributes full-file-name
))))
227 (directory-files dir
)))
230 (defun dired-touch-initial (files)
231 "Create initial input value for `touch' command."
234 (let ((current (nth 5 (file-attributes (car files
)))))
235 (if (and initial
(not (equal initial current
)))
236 (setq initial
(current-time) files nil
)
237 (setq initial current
))
238 (setq files
(cdr files
))))
239 (format-time-string "%Y%m%d%H%M.%S" initial
)))
241 (defun dired-do-chxxx (attribute-name program op-symbol arg
)
242 ;; Change file attributes (mode, group, owner, timestamp) of marked files and
243 ;; refresh their file lines.
244 ;; ATTRIBUTE-NAME is a string describing the attribute to the user.
245 ;; PROGRAM is the program used to change the attribute.
246 ;; OP-SYMBOL is the type of operation (for use in dired-mark-pop-up).
247 ;; ARG describes which files to use, as in dired-get-marked-files.
248 (let* ((files (dired-get-marked-files t arg
))
250 (dired-mark-read-string
251 (concat "Change " attribute-name
" of %s to: ")
252 (if (eq op-symbol
'touch
) (dired-touch-initial files
))
253 op-symbol arg files
))
254 (operation (concat program
" " new-attribute
))
257 (dired-bunch-files 10000
258 (function dired-check-process
)
260 (list operation program
)
261 (if (eq op-symbol
'touch
)
264 (if (string-match "gnu" system-configuration
)
267 (dired-do-redisplay arg
);; moves point if ARG is an integer
270 (format "%s: error" operation
)
274 (defun dired-do-chmod (&optional arg
)
275 "Change the mode of the marked (or next ARG) files.
276 Symbolic modes like `g+w' are allowed."
278 (let* ((files (dired-get-marked-files t arg
))
279 (modestr (and (stringp (car files
))
280 (nth 8 (file-attributes (car files
)))))
282 (and (stringp modestr
)
283 (string-match "^.\\(...\\)\\(...\\)\\(...\\)$" modestr
)
284 (replace-regexp-in-string
286 (format "u=%s,g=%s,o=%s"
287 (match-string 1 modestr
)
288 (match-string 2 modestr
)
289 (match-string 3 modestr
)))))
290 (modes (dired-mark-read-string
291 "Change mode of %s to: " nil
292 'chmod arg files default
))
293 (num-modes (if (string-match "^[0-7]+" modes
)
294 (string-to-number modes
8))))
298 (if num-modes num-modes
299 (file-modes-symbolic-to-number modes
(file-modes file
)))))
300 (dired-do-redisplay arg
)))
303 (defun dired-do-chgrp (&optional arg
)
304 "Change the group of the marked (or next ARG) files."
306 (if (memq system-type
'(ms-dos windows-nt
))
307 (error "chgrp not supported on this system"))
308 (dired-do-chxxx "Group" "chgrp" 'chgrp arg
))
311 (defun dired-do-chown (&optional arg
)
312 "Change the owner of the marked (or next ARG) files."
314 (if (memq system-type
'(ms-dos windows-nt
))
315 (error "chown not supported on this system"))
316 (dired-do-chxxx "Owner" dired-chown-program
'chown arg
))
319 (defun dired-do-touch (&optional arg
)
320 "Change the timestamp of the marked (or next ARG) files.
323 (dired-do-chxxx "Timestamp" dired-touch-program
'touch arg
))
325 ;; Process all the files in FILES in batches of a convenient size,
326 ;; by means of (FUNCALL FUNCTION ARGS... SOME-FILES...).
327 ;; Batches are chosen to need less than MAX chars for the file names,
328 ;; allowing 3 extra characters of separator per file name.
329 (defun dired-bunch-files (max function args files
)
334 ;; Accumulate files as long as they fit in MAX chars,
335 ;; then process the ones accumulated so far.
337 (let* ((thisfile (car files
))
338 (thislength (+ (length thisfile
) 3))
340 ;; If we have at least 1 pending file
341 ;; and this file won't fit in the length limit, process now.
342 (if (and pending
(> (+ thislength pending-length
) max
))
343 (setq pending
(nreverse pending
)
344 ;; The elements of PENDING are now in forward order.
345 ;; Do the operation and record failures.
346 failures
(nconc (apply function
(append args pending
))
348 ;; Transfer the elemens of PENDING onto PAST
349 ;; and clear it out. Now PAST contains the first N files
350 ;; specified (for some N), and FILES contains the rest.
351 past
(nconc past pending
)
354 ;; Do (setq pending (cons thisfile pending))
355 ;; but reuse the cons that was in `files'.
356 (setcdr files pending
)
358 (setq pending-length
(+ thislength pending-length
))
360 (setq pending
(nreverse pending
))
362 (nconc (apply function
(append args pending
))
364 ;; Now the original list FILES has been put back as it was.
365 (nconc past pending
))))
368 (defun dired-do-print (&optional arg
)
369 "Print the marked (or next ARG) files.
370 Uses the shell command coming from variables `lpr-command' and
371 `lpr-switches' as default."
373 (let* ((file-list (dired-get-marked-files t arg
))
374 (command (dired-mark-read-string
378 (if (stringp lpr-switches
)
382 'print arg file-list
)))
383 (dired-run-shell-command (dired-shell-stuff-it command file-list nil
))))
385 ;; Read arguments for a marked-files command that wants a string
386 ;; that is not a file name,
387 ;; perhaps popping up the list of marked files.
388 ;; ARG is the prefix arg and indicates whether the files came from
389 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
390 ;; If the current file was used, the list has but one element and ARG
391 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
393 (defun dired-mark-read-string (prompt initial op-symbol arg files
&optional default
)
394 ;; PROMPT for a string, with INITIAL input and DEFAULT value.
395 ;; Other args are used to give user feedback and pop-up:
396 ;; OP-SYMBOL of command, prefix ARG, marked FILES.
399 (function read-string
)
400 (format prompt
(dired-mark-prompt arg files
)) initial nil default
))
402 ;;; Cleaning a directory: flagging some backups for deletion.
404 (defvar dired-file-version-alist
)
407 (defun dired-clean-directory (keep)
408 "Flag numerical backups for deletion.
409 Spares `dired-kept-versions' latest versions, and `kept-old-versions' oldest.
410 Positive prefix arg KEEP overrides `dired-kept-versions';
411 Negative prefix arg KEEP overrides `kept-old-versions' with KEEP made positive.
413 To clear the flags on these files, you can use \\[dired-flag-backup-files]
414 with a prefix argument."
416 (setq keep
(if keep
(prefix-numeric-value keep
) dired-kept-versions
))
417 (let ((early-retention (if (< keep
0) (- keep
) kept-old-versions
))
418 (late-retention (if (<= keep
0) dired-kept-versions keep
))
419 (dired-file-version-alist ()))
420 (message "Cleaning numerical backups (keeping %d late, %d old)..."
421 late-retention early-retention
)
422 ;; Look at each file.
423 ;; If the file has numeric backup versions,
424 ;; put on dired-file-version-alist an element of the form
425 ;; (FILENAME . VERSION-NUMBER-LIST)
426 (dired-map-dired-file-lines (function dired-collect-file-versions
))
427 ;; Sort each VERSION-NUMBER-LIST,
428 ;; and remove the versions not to be deleted.
429 (let ((fval dired-file-version-alist
))
431 (let* ((sorted-v-list (cons 'q
(sort (cdr (car fval
)) '<)))
432 (v-count (length sorted-v-list
)))
433 (if (> v-count
(+ early-retention late-retention
))
434 (rplacd (nthcdr early-retention sorted-v-list
)
435 (nthcdr (- v-count late-retention
)
438 (cdr sorted-v-list
)))
439 (setq fval
(cdr fval
))))
440 ;; Look at each file. If it is a numeric backup file,
441 ;; find it in a VERSION-NUMBER-LIST and maybe flag it for deletion.
442 (dired-map-dired-file-lines (function dired-trample-file-versions
))
443 (message "Cleaning numerical backups...done")))
445 ;;; Subroutines of dired-clean-directory.
447 (defun dired-map-dired-file-lines (fun)
448 ;; Perform FUN with point at the end of each non-directory line.
449 ;; FUN takes one argument, the absolute filename.
451 (let (file buffer-read-only
)
452 (goto-char (point-min))
455 (and (not (looking-at dired-re-dir
))
457 (setq file
(dired-get-filename nil t
)) ; nil on non-file
459 (funcall fun file
))))
462 (defvar backup-extract-version-start
) ; used in backup-extract-version
464 (defun dired-collect-file-versions (fn)
465 (let ((fn (file-name-sans-versions fn
)))
466 ;; Only do work if this file is not already in the alist.
467 (if (assoc fn dired-file-version-alist
)
469 ;; If it looks like file FN has versions, return a list of the versions.
470 ;;That is a list of strings which are file names.
471 ;;The caller may want to flag some of these files for deletion.
472 (let* ((base-versions
473 (concat (file-name-nondirectory fn
) ".~"))
474 (backup-extract-version-start (length base-versions
))
475 (possibilities (file-name-all-completions
477 (file-name-directory fn
)))
478 (versions (mapcar 'backup-extract-version possibilities
)))
480 (setq dired-file-version-alist
481 (cons (cons fn versions
)
482 dired-file-version-alist
)))))))
484 (defun dired-trample-file-versions (fn)
485 (let* ((start-vn (string-match "\\.~[0-9]+~$" fn
))
488 (setq base-version-list
; there was a base version to which
489 (assoc (substring fn
0 start-vn
) ; this looks like a
490 dired-file-version-alist
)) ; subversion
491 (not (memq (string-to-number (substring fn
(+ 2 start-vn
)))
492 base-version-list
)) ; this one doesn't make the cut
493 (progn (beginning-of-line)
495 (insert dired-del-marker
)))))
499 (declare-function mailcap-file-default-commands
"mailcap" (files))
501 (defun minibuffer-default-add-dired-shell-commands ()
502 "Return a list of all commands associated with current dired files.
503 This function is used to add all related commands retrieved by `mailcap'
504 to the end of the list of defaults just after the default value."
506 (let ((commands (and (boundp 'files
) (require 'mailcap nil t
)
507 (mailcap-file-default-commands files
))))
508 (if (listp minibuffer-default
)
509 (append minibuffer-default commands
)
510 (cons minibuffer-default commands
))))
512 ;; This is an extra function so that you can redefine it, e.g., to use gmhist.
513 (defun dired-read-shell-command (prompt arg files
)
514 "Read a dired shell command prompting with PROMPT.
515 Passes the prefix argument ARG to `dired-mark-prompt', so that it
516 can be used in the prompt to indicate which FILES are affected.
517 Normally reads the command with `read-shell-command', but if the
518 `dired-x' packages is loaded, uses `dired-guess-shell-command' to offer
519 a smarter default choice of shell command."
520 (minibuffer-with-setup-hook
522 (set (make-local-variable 'minibuffer-default-add-function
)
523 'minibuffer-default-add-dired-shell-commands
))
524 (setq prompt
(format prompt
(dired-mark-prompt arg files
)))
525 (if (featurep 'dired-x
)
526 (dired-mark-pop-up nil
'shell files
527 #'dired-guess-shell-command prompt files
)
528 (dired-mark-pop-up nil
'shell files
529 #'read-shell-command prompt nil nil
))))
532 (defun dired-do-async-shell-command (command &optional arg file-list
)
533 "Run a shell command COMMAND on the marked files asynchronously.
535 Like `dired-do-shell-command' but if COMMAND doesn't end in ampersand,
536 adds `* &' surrounded by whitespace and executes the command asynchronously.
537 The output appears in the buffer `*Async Shell Command*'."
539 (let ((files (dired-get-marked-files t current-prefix-arg
)))
541 ;; Want to give feedback whether this file or marked files are used:
542 (dired-read-shell-command "& on %s: " current-prefix-arg files
)
545 (unless (string-match "[*?][ \t]*\\'" command
)
546 (setq command
(concat command
" *")))
547 (unless (string-match "&[ \t]*\\'" command
)
548 (setq command
(concat command
" &")))
549 (dired-do-shell-command command arg file-list
))
551 ;; The in-background argument is only needed in Emacs 18 where
552 ;; shell-command doesn't understand an appended ampersand `&'.
554 (defun dired-do-shell-command (command &optional arg file-list
)
555 "Run a shell command COMMAND on the marked files.
556 If no files are marked or a specific numeric prefix arg is given,
557 the next ARG files are used. Just \\[universal-argument] means the current file.
558 The prompt mentions the file(s) or the marker, as appropriate.
560 If there is a `*' in COMMAND, surrounded by whitespace, this runs
561 COMMAND just once with the entire file list substituted there.
563 If there is no `*', but there is a `?' in COMMAND, surrounded by
564 whitespace, this runs COMMAND on each file individually with the
565 file name substituted for `?'.
567 Otherwise, this runs COMMAND on each file individually with the
568 file name added at the end of COMMAND (separated by a space).
570 `*' and `?' when not surrounded by whitespace have no special
571 significance for `dired-do-shell-command', and are passed through
572 normally to the shell, but you must confirm first. To pass `*' by
573 itself to the shell as a wildcard, type `*\"\"'.
575 If COMMAND produces output, it goes to a separate buffer.
577 This feature does not try to redisplay Dired buffers afterward, as
578 there's no telling what files COMMAND may have changed.
579 Type \\[dired-do-redisplay] to redisplay the marked files.
581 When COMMAND runs, its working directory is the top-level directory
582 of the Dired buffer, so output files usually are created there
583 instead of in a subdir.
585 In a noninteractive call (from Lisp code), you must specify
586 the list of file names explicitly with the FILE-LIST argument, which
587 can be produced by `dired-get-marked-files', for example."
588 ;;Functions dired-run-shell-command and dired-shell-stuff-it do the
589 ;;actual work and can be redefined for customization.
591 (let ((files (dired-get-marked-files t current-prefix-arg
)))
593 ;; Want to give feedback whether this file or marked files are used:
594 (dired-read-shell-command (concat "! on "
600 (let* ((on-each (not (string-match dired-star-subst-regexp command
)))
601 (subst (not (string-match dired-quark-subst-regexp command
)))
602 (star (not (string-match "\\*" command
)))
603 (qmark (not (string-match "\\?" command
))))
604 ;; Get confirmation for wildcards that may have been meant
605 ;; to control substitution of a file name or the file name list.
606 (if (cond ((not (or on-each subst
))
607 (error "You can not combine `*' and `?' substitution marks"))
608 ((and star
(not on-each
))
609 (y-or-n-p "Confirm--do you mean to use `*' as a wildcard? "))
610 ((and qmark
(not subst
))
611 (y-or-n-p "Confirm--do you mean to use `?' as a wildcard? "))
615 (- 10000 (length command
))
616 (function (lambda (&rest files
)
617 (dired-run-shell-command
618 (dired-shell-stuff-it command files t arg
))))
621 ;; execute the shell command
622 (dired-run-shell-command
623 (dired-shell-stuff-it command file-list nil arg
))))))
625 ;; Might use {,} for bash or csh:
626 (defvar dired-mark-prefix
""
627 "Prepended to marked files in dired shell commands.")
628 (defvar dired-mark-postfix
""
629 "Appended to marked files in dired shell commands.")
630 (defvar dired-mark-separator
" "
631 "Separates marked files in dired shell commands.")
633 (defun dired-shell-stuff-it (command file-list on-each
&optional _raw-arg
)
634 ;; "Make up a shell command line from COMMAND and FILE-LIST.
635 ;; If ON-EACH is t, COMMAND should be applied to each file, else
636 ;; simply concat all files and apply COMMAND to this.
637 ;; FILE-LIST's elements will be quoted for the shell."
638 ;; Might be redefined for smarter things and could then use RAW-ARG
639 ;; (coming from interactive P and currently ignored) to decide what to do.
640 ;; Smart would be a way to access basename or extension of file names.
642 (if (or (string-match dired-star-subst-regexp command
)
643 (string-match dired-quark-subst-regexp command
))
645 (let ((retval command
))
647 "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval
)
648 (setq retval
(replace-match x t t retval
2)))
650 (lambda (x) (concat command dired-mark-separator x
)))))
652 (mapconcat stuff-it
(mapcar 'shell-quote-argument file-list
) ";")
653 (let ((files (mapconcat 'shell-quote-argument
654 file-list dired-mark-separator
)))
655 (if (> (length file-list
) 1)
656 (setq files
(concat dired-mark-prefix files dired-mark-postfix
)))
657 (funcall stuff-it files
)))))
659 ;; This is an extra function so that it can be redefined by ange-ftp.
661 (defun dired-run-shell-command (command)
663 (find-file-name-handler (directory-file-name default-directory
)
665 (if handler
(apply handler
'shell-command
(list command
))
666 (shell-command command
)))
667 ;; Return nil for sake of nconc in dired-bunch-files.
671 (defun dired-check-process (msg program
&rest arguments
)
672 ; "Display MSG while running PROGRAM, and check for output.
673 ;Remaining arguments are strings passed as command arguments to PROGRAM.
674 ; On error, insert output
675 ; in a log buffer and return the offending ARGUMENTS or PROGRAM.
676 ; Caller can cons up a list of failed args.
677 ;Else returns nil for success."
678 (let (err-buffer err
(dir default-directory
))
679 (message "%s..." msg
)
681 ;; Get a clean buffer for error output:
682 (setq err-buffer
(get-buffer-create " *dired-check-process output*"))
683 (set-buffer err-buffer
)
685 (setq default-directory dir
; caller's default-directory
686 err
(not (eq 0 (apply 'process-file program nil t nil arguments
))))
689 (dired-log (concat program
" " (prin1-to-string arguments
) "\n"))
690 (dired-log err-buffer
)
691 (or arguments program t
))
692 (kill-buffer err-buffer
)
693 (message "%s...done" msg
)
696 ;; Commands that delete or redisplay part of the dired buffer.
698 (defun dired-kill-line (&optional arg
)
700 (setq arg
(prefix-numeric-value arg
))
701 (let (buffer-read-only file
)
703 (setq file
(dired-get-filename nil t
))
705 (error "Can only kill file lines")
706 (save-excursion (and file
707 (dired-goto-subdir file
)
708 (dired-kill-subdir)))
709 (delete-region (line-beginning-position)
710 (progn (forward-line 1) (point)))
715 (dired-move-to-filename)))
718 (defun dired-do-kill-lines (&optional arg fmt
)
719 "Kill all marked lines (not the files).
720 With a prefix argument, kill that many lines starting with the current line.
721 \(A negative argument kills backward.)
722 If you use this command with a prefix argument to kill the line
723 for a file that is a directory, which you have inserted in the
724 Dired buffer as a subdirectory, then it deletes that subdirectory
725 from the buffer as well.
726 To kill an entire subdirectory \(without killing its line in the
727 parent directory), go to its directory header line and use this
728 command with a prefix argument (the value does not matter)."
729 ;; Returns count of killed lines. FMT="" suppresses message.
732 (if (dired-get-subdir)
734 (dired-kill-line arg
))
736 (goto-char (point-min))
737 (let (buffer-read-only
739 (regexp (dired-marker-regexp)))
740 (while (and (not (eobp))
741 (re-search-forward regexp nil t
))
742 (setq count
(1+ count
))
743 (delete-region (line-beginning-position)
744 (progn (forward-line 1) (point))))
746 (message (or fmt
"Killed %d line%s.") count
(dired-plural-s count
)))
749 ;;;###end dired-cmd.el
752 ;;;###begin dired-cp.el
754 (defun dired-compress ()
755 ;; Compress or uncompress the current file.
756 ;; Return nil for success, offending filename else.
757 (let* (buffer-read-only
758 (from-file (dired-get-filename))
759 (new-file (dired-compress-file from-file
)))
761 (let ((start (point)))
762 ;; Remove any preexisting entry for the name NEW-FILE.
764 (dired-remove-entry new-file
)
767 ;; Now replace the current line with an entry for NEW-FILE.
768 (dired-update-file-line new-file
) nil
)
769 (dired-log (concat "Failed to compress" from-file
))
772 (defvar dired-compress-file-suffixes
773 '(("\\.gz\\'" "" "gunzip")
774 ("\\.tgz\\'" ".tar" "gunzip")
775 ("\\.Z\\'" "" "uncompress")
776 ;; For .z, try gunzip. It might be an old gzip file,
777 ;; or it might be from compact? pack? (which?) but gunzip handles both.
778 ("\\.z\\'" "" "gunzip")
779 ("\\.dz\\'" "" "dictunzip")
780 ("\\.tbz\\'" ".tar" "bunzip2")
781 ("\\.bz2\\'" "" "bunzip2")
782 ("\\.xz\\'" "" "unxz")
783 ;; This item controls naming for compression.
784 ("\\.tar\\'" ".tgz" nil
))
785 "Control changes in file name suffixes for compression and uncompression.
786 Each element specifies one transformation rule, and has the form:
787 (REGEXP NEW-SUFFIX PROGRAM)
788 The rule applies when the old file name matches REGEXP.
789 The new file name is computed by deleting the part that matches REGEXP
790 (as well as anything after that), then adding NEW-SUFFIX in its place.
791 If PROGRAM is non-nil, the rule is an uncompression rule,
792 and uncompression is done by running PROGRAM.
793 Otherwise, the rule is a compression rule, and compression is done with gzip.")
796 (defun dired-compress-file (file)
797 ;; Compress or uncompress FILE.
798 ;; Return the name of the compressed or uncompressed file.
799 ;; Return nil if no change in files.
800 (let ((handler (find-file-name-handler file
'dired-compress-file
))
802 (suffixes dired-compress-file-suffixes
))
803 ;; See if any suffix rule matches this file name.
805 (let (case-fold-search)
806 (if (string-match (car (car suffixes
)) file
)
807 (setq suffix
(car suffixes
) suffixes nil
))
808 (setq suffixes
(cdr suffixes
))))
809 ;; If so, compute desired new name.
811 (setq newname
(concat (substring file
0 (match-beginning 0))
814 (funcall handler
'dired-compress-file file
))
815 ((file-symlink-p file
)
817 ((and suffix
(nth 2 suffix
))
818 ;; We found an uncompression rule.
819 (if (not (dired-check-process (concat "Uncompressing " file
)
820 (nth 2 suffix
) file
))
823 ;;; We don't recognize the file as compressed, so compress it.
824 ;;; Try gzip; if we don't have that, use compress.
826 (let ((out-name (concat file
".gz")))
827 (and (or (not (file-exists-p out-name
))
829 (format "File %s already exists. Really compress? "
831 (not (dired-check-process (concat "Compressing " file
)
833 (or (file-exists-p out-name
)
834 (setq out-name
(concat file
".z")))
835 ;; Rename the compressed file to NEWNAME
836 ;; if it hasn't got that name already.
837 (if (and newname
(not (equal newname out-name
)))
839 (rename-file out-name newname t
)
843 (if (not (dired-check-process (concat "Compressing " file
)
844 "compress" "-f" file
))
845 ;; Don't use NEWNAME with `compress'.
846 (concat file
".Z"))))))))
848 (defun dired-mark-confirm (op-symbol arg
)
849 ;; Request confirmation from the user that the operation described
850 ;; by OP-SYMBOL is to be performed on the marked files.
851 ;; Confirmation consists in a y-or-n question with a file list
852 ;; pop-up unless OP-SYMBOL is a member of `dired-no-confirm'.
853 ;; The files used are determined by ARG (as in dired-get-marked-files).
854 (or (eq dired-no-confirm t
)
855 (memq op-symbol dired-no-confirm
)
856 ;; Pass t for DISTINGUISH-ONE-MARKED so that a single file which
857 ;; is marked pops up a window. That will help the user see
858 ;; it isn't the current line file.
859 (let ((files (dired-get-marked-files t arg nil t
))
860 (string (if (eq op-symbol
'compress
) "Compress or uncompress"
861 (capitalize (symbol-name op-symbol
)))))
862 (dired-mark-pop-up nil op-symbol files
(function y-or-n-p
)
864 (dired-mark-prompt arg files
) "? ")))))
866 (defun dired-map-over-marks-check (fun arg op-symbol
&optional show-progress
)
867 ; "Map FUN over marked files (with second ARG like in dired-map-over-marks)
868 ; and display failures.
870 ; FUN takes zero args. It returns non-nil (the offending object, e.g.
871 ; the short form of the filename) for a failure and probably logs a
872 ; detailed error explanation using function `dired-log'.
874 ; OP-SYMBOL is a symbol describing the operation performed (e.g.
875 ; `compress'). It is used with `dired-mark-pop-up' to prompt the user
876 ; (e.g. with `Compress * [2 files]? ') and to display errors (e.g.
877 ; `Failed to compress 1 of 2 files - type W to see why ("foo")')
879 ; SHOW-PROGRESS if non-nil means redisplay dired after each file."
880 (if (dired-mark-confirm op-symbol arg
)
881 (let* ((total-list;; all of FUN's return values
882 (dired-map-over-marks (funcall fun
) arg show-progress
))
883 (total (length total-list
))
884 (failures (delq nil total-list
))
885 (count (length failures
))
886 (string (if (eq op-symbol
'compress
) "Compress or uncompress"
887 (capitalize (symbol-name op-symbol
)))))
889 (message "%s: %d file%s."
890 string total
(dired-plural-s total
))
891 ;; end this bunch of errors:
893 (format "Failed to %s %d of %d file%s"
894 (downcase string
) count total
(dired-plural-s total
))
898 (defun dired-query (sym prompt
&rest args
)
899 "Format PROMPT with ARGS, query user, and store the result in SYM.
900 The return value is either nil or t.
902 The user may type y or SPC to accept once; n or DEL to skip once;
903 ! to accept this and subsequent queries; or q or ESC to decline
904 this and subsequent queries.
906 If SYM is already bound to a non-nil value, this function may
907 return automatically without querying the user. If SYM is !,
908 return t; if SYM is q or ESC, return nil."
909 (let* ((char (symbol-value sym
))
910 (char-choices '(?y ?\s ?n ?
\177 ?
! ?q ?\e
)))
912 t
) ; accept, and don't ask again
913 ((memq char
'(?q ?\e
))
914 nil
) ; skip, and don't ask again
915 (t ; no previous answer - ask now
917 (concat (apply 'format prompt args
)
919 (format " [Type yn!q or %s] "
921 (char-to-string help-char
)))
922 " [Type y, n, q or !] ")))
923 (set sym
(setq char
(read-char-choice prompt char-choices
)))
924 (if (memq char
'(?y ?\s ?
!)) t
)))))
928 (defun dired-do-compress (&optional arg
)
929 "Compress or uncompress marked (or next ARG) files."
931 (dired-map-over-marks-check (function dired-compress
) arg
'compress t
))
933 ;; Commands for Emacs Lisp files - load and byte compile
935 (defun dired-byte-compile ()
936 ;; Return nil for success, offending file name else.
937 (let* ((filename (dired-get-filename))
938 elc-file buffer-read-only failure
)
940 (save-excursion (byte-compile-file filename
))
943 (setq elc-file
(byte-compile-dest-file filename
))
944 (or (file-exists-p elc-file
)
948 (dired-log "Byte compile error for %s:\n%s\n" filename failure
)
949 (dired-make-relative filename
))
950 (dired-remove-file elc-file
)
951 (forward-line) ; insert .elc after its .el file
952 (dired-add-file elc-file
)
956 (defun dired-do-byte-compile (&optional arg
)
957 "Byte compile marked (or next ARG) Emacs Lisp files."
959 (dired-map-over-marks-check (function dired-byte-compile
) arg
'byte-compile t
))
962 ;; Return nil for success, offending file name else.
963 (let ((file (dired-get-filename)) failure
)
965 (load file nil nil t
)
966 (error (setq failure err
)))
969 (dired-log "Load error for %s:\n%s\n" file failure
)
970 (dired-make-relative file
))))
973 (defun dired-do-load (&optional arg
)
974 "Load the marked (or next ARG) Emacs Lisp files."
976 (dired-map-over-marks-check (function dired-load
) arg
'load t
))
979 (defun dired-do-redisplay (&optional arg test-for-subdir
)
980 "Redisplay all marked (or next ARG) files.
981 If on a subdir line, redisplay that subdirectory. In that case,
982 a prefix arg lets you edit the `ls' switches used for the new listing.
984 Dired remembers switches specified with a prefix arg, so that reverting
985 the buffer will not reset them. However, using `dired-undo' to re-insert
986 or delete subdirectories can bypass this machinery. Hence, you sometimes
987 may have to reset some subdirectory switches after a `dired-undo'.
988 You can reset all subdirectory switches to the default using
989 \\<dired-mode-map>\\[dired-reset-subdir-switches].
990 See Info node `(emacs)Subdir switches' for more details."
991 ;; Moves point if the next ARG files are redisplayed.
993 (if (and test-for-subdir
(dired-get-subdir))
994 (let* ((dir (dired-get-subdir))
995 (switches (cdr (assoc-string dir dired-switches-alist
))))
999 (read-string "Switches for listing: "
1001 dired-subdir-switches
1002 dired-actual-switches
)))))
1003 (message "Redisplaying...")
1004 ;; message much faster than making dired-map-over-marks show progress
1006 (if (consp dired-directory
) (car dired-directory
) dired-directory
))
1007 (dired-map-over-marks (let ((fname (dired-get-filename))
1008 ;; Postphone readin hook till we map
1009 ;; over all marked files (Bug#6810).
1010 (dired-after-readin-hook nil
))
1011 (message "Redisplaying... %s" fname
)
1012 (dired-update-file-line fname
))
1014 (run-hooks 'dired-after-readin-hook
)
1015 (dired-move-to-filename)
1016 (message "Redisplaying...done")))
1018 (defun dired-reset-subdir-switches ()
1019 "Set `dired-switches-alist' to nil and revert dired buffer."
1021 (setq dired-switches-alist nil
)
1024 (defun dired-update-file-line (file)
1025 ;; Delete the current line, and insert an entry for FILE.
1026 ;; If FILE is nil, then just delete the current line.
1027 ;; Keeps any marks that may be present in column one (doing this
1028 ;; here is faster than with dired-add-entry's optional arg).
1029 ;; Does not update other dired buffers. Use dired-relist-entry for that.
1030 (let* ((opoint (line-beginning-position))
1031 (char (char-after opoint
))
1033 (delete-region opoint
(progn (forward-line 1) (point)))
1036 (dired-add-entry file nil t
)
1037 ;; Replace space by old marker without moving point.
1038 ;; Faster than goto+insdel inside a save-excursion?
1039 (subst-char-in-region opoint
(1+ opoint
) ?
\040 char
))))
1040 (dired-move-to-filename))
1043 (defun dired-add-file (filename &optional marker-char
)
1044 (dired-fun-in-all-buffers
1045 (file-name-directory filename
) (file-name-nondirectory filename
)
1046 (function dired-add-entry
) filename marker-char
))
1048 (defvar dired-omit-mode
)
1049 (declare-function dired-omit-regexp
"dired-x" ())
1050 (defvar dired-omit-localp
)
1052 (defun dired-add-entry (filename &optional marker-char relative
)
1053 "Add a new dired entry for FILENAME.
1054 Optionally mark it with MARKER-CHAR (a character, else uses
1055 `dired-marker-char'). Note that this adds the entry `out of order'
1056 if files are sorted by time, etc.
1057 Skips files that match `dired-trivial-filenames'.
1058 Exposes hidden subdirectories if a file is added there.
1060 If `dired-x' is loaded and `dired-omit-mode' is enabled, skips
1061 files matching `dired-omit-regexp'."
1062 (if (or (not (featurep 'dired-x
))
1063 (not dired-omit-mode
)
1064 ;; Avoid calling ls for files that are going to be omitted anyway.
1065 (let ((omit-re (dired-omit-regexp)))
1066 (or (string= omit-re
"")
1067 (not (string-match omit-re
1069 ((eq 'no-dir dired-omit-localp
)
1071 ((eq t dired-omit-localp
)
1072 (dired-make-relative filename
))
1074 (dired-make-absolute
1076 (file-name-directory filename
)))))))))
1079 (setq filename
(directory-file-name filename
))
1080 ;; Entry is always for files, even if they happen to also be directories
1081 (let* ((opoint (point))
1082 (cur-dir (dired-current-directory))
1083 (directory (if relative cur-dir
(file-name-directory filename
)))
1087 (file-relative-name filename directory
)
1088 (file-name-nondirectory filename
))
1091 (if (string= directory cur-dir
)
1093 (skip-chars-forward "^\r\n")
1094 (if (eq (following-char) ?
\r)
1095 (dired-unhide-subdir))
1096 ;; We are already where we should be, except when
1097 ;; point is before the subdir line or its total line.
1098 (let ((p (dired-after-subdir-garbage cur-dir
)))
1101 ;; else try to find correct place to insert
1102 (if (dired-goto-subdir directory
)
1103 (progn ;; unhide if necessary
1104 (if (looking-at "\r")
1105 ;; Point is at end of subdir line.
1106 (dired-unhide-subdir))
1107 ;; found - skip subdir and `total' line
1108 ;; and uninteresting files like . and ..
1109 ;; This better not move into the next subdir!
1110 (dired-goto-next-nontrivial-file))
1112 (throw 'not-found
"Subdir not found")))
1113 (let (buffer-read-only opoint
)
1115 (setq opoint
(point))
1116 ;; Don't expand `.'.
1117 ;; Show just the file name within directory.
1118 (let ((default-directory directory
))
1119 (dired-insert-directory
1121 (concat dired-actual-switches
" -d")
1124 ;; Put in desired marker char.
1126 (let ((dired-marker-char
1127 (if (integerp marker-char
) marker-char
1128 dired-marker-char
)))
1130 ;; Compensate for a bug in ange-ftp.
1131 ;; It inserts the file's absolute name, rather than
1132 ;; the relative one. That may be hard to fix since it
1133 ;; is probably controlled by something in ftp.
1135 (let ((inserted-name (dired-get-filename 'verbatim
)))
1136 (if (file-name-directory inserted-name
)
1139 (forward-char (- (length inserted-name
)))
1140 (setq props
(text-properties-at (point)))
1141 (delete-char (length inserted-name
))
1144 (set-text-properties pt
(point) props
))
1148 (if dired-after-readin-hook
1149 ;; The subdir-alist is not affected...
1150 (save-excursion ; ...so we can run it right now:
1153 (narrow-to-region (point)
1154 (line-beginning-position 2))
1155 (run-hooks 'dired-after-readin-hook
))))
1156 (dired-move-to-filename))
1157 ;; return nil if all went well
1159 (if reason
; don't move away on failure
1161 (not reason
))) ; return t on success, nil else
1162 ;; Don't do it (dired-omit-mode).
1163 ;; Return t for success (perhaps we should return file-exists-p).
1166 (defun dired-after-subdir-garbage (dir)
1167 ;; Return pos of first file line of DIR, skipping header and total
1168 ;; or wildcard lines.
1169 ;; Important: never moves into the next subdir.
1170 ;; DIR is assumed to be unhidden.
1172 (or (dired-goto-subdir dir
) (error "This cannot happen"))
1174 (while (and (not (eolp)) ; don't cross subdir boundary
1175 (not (dired-move-to-filename)))
1180 (defun dired-remove-file (file)
1181 (dired-fun-in-all-buffers
1182 (file-name-directory file
) (file-name-nondirectory file
)
1183 (function dired-remove-entry
) file
))
1185 (defun dired-remove-entry (file)
1187 (and (dired-goto-file file
)
1188 (let (buffer-read-only)
1189 (delete-region (progn (beginning-of-line) (point))
1190 (line-beginning-position 2))))))
1193 (defun dired-relist-file (file)
1194 "Create or update the line for FILE in all Dired buffers it would belong in."
1195 (dired-fun-in-all-buffers (file-name-directory file
)
1196 (file-name-nondirectory file
)
1197 (function dired-relist-entry
) file
))
1199 (defun dired-relist-entry (file)
1200 ;; Relist the line for FILE, or just add it if it did not exist.
1201 ;; FILE must be an absolute file name.
1202 (let (buffer-read-only marker
)
1203 ;; If cursor is already on FILE's line delete-region will cause
1204 ;; save-excursion to fail because of floating makers,
1205 ;; moving point to beginning of line. Sigh.
1207 (and (dired-goto-file file
)
1208 (delete-region (progn (beginning-of-line)
1209 (setq marker
(following-char))
1211 (line-beginning-position 2)))
1212 (setq file
(directory-file-name file
))
1213 (dired-add-entry file
(if (eq ?
\040 marker
) nil marker
)))))
1215 ;;; Copy, move/rename, making hard and symbolic links
1217 (defcustom dired-backup-overwrite nil
1218 "Non-nil if Dired should ask about making backups before overwriting files.
1219 Special value `always' suppresses confirmation."
1220 :type
'(choice (const :tag
"off" nil
)
1221 (const :tag
"suppress" always
)
1222 (other :tag
"ask" t
))
1225 ;; This is a fluid var used in dired-handle-overwrite. It should be
1226 ;; let-bound whenever dired-copy-file etc are called. See
1227 ;; dired-create-files for an example.
1228 (defvar dired-overwrite-confirmed
)
1230 (defun dired-handle-overwrite (to)
1231 ;; Save old version of file TO that is to be overwritten.
1232 ;; `dired-overwrite-confirmed' and `overwrite-backup-query' are fluid vars
1233 ;; from dired-create-files.
1235 (when (and dired-backup-overwrite
1236 dired-overwrite-confirmed
1237 (setq backup
(car (find-backup-file-name to
)))
1238 (or (eq 'always dired-backup-overwrite
)
1239 (dired-query 'overwrite-backup-query
1240 "Make backup for existing file `%s'? "
1242 (rename-file to backup
0) ; confirm overwrite of old backup
1243 (dired-relist-entry backup
))))
1246 (defun dired-copy-file (from to ok-flag
)
1247 (dired-handle-overwrite to
)
1248 (dired-copy-file-recursive from to ok-flag dired-copy-preserve-time t
1249 dired-recursive-copies
))
1251 (declare-function make-symbolic-link
"fileio.c")
1253 (defun dired-copy-file-recursive (from to ok-flag
&optional
1254 preserve-time top recursive
)
1255 (let ((attrs (file-attributes from
)))
1258 (or (eq recursive
'always
)
1259 (yes-or-no-p (format "Recursive copies of %s? " from
))))
1260 ;; This is a directory.
1261 (copy-directory from to preserve-time
)
1263 (or top
(dired-handle-overwrite to
))
1265 (if (stringp (car attrs
))
1267 (make-symbolic-link (car attrs
) to ok-flag
)
1268 (copy-file from to ok-flag preserve-time
))
1270 (push (dired-make-relative from
)
1271 dired-create-files-failures
)
1272 (dired-log "Can't set date on %s:\n%s\n" from err
))))))
1275 (defun dired-rename-file (file newname ok-if-already-exists
)
1276 (dired-handle-overwrite newname
)
1277 (rename-file file newname ok-if-already-exists
) ; error is caught in -create-files
1278 ;; Silently rename the visited file of any buffer visiting this file.
1279 (and (get-file-buffer file
)
1280 (with-current-buffer (get-file-buffer file
)
1281 (set-visited-file-name newname nil t
)))
1282 (dired-remove-file file
)
1283 ;; See if it's an inserted subdir, and rename that, too.
1284 (dired-rename-subdir file newname
))
1286 (defun dired-rename-subdir (from-dir to-dir
)
1287 (setq from-dir
(file-name-as-directory from-dir
)
1288 to-dir
(file-name-as-directory to-dir
))
1289 (dired-fun-in-all-buffers from-dir nil
1290 (function dired-rename-subdir-1
) from-dir to-dir
)
1291 ;; Update visited file name of all affected buffers
1292 (let ((expanded-from-dir (expand-file-name from-dir
))
1293 (blist (buffer-list)))
1295 (with-current-buffer (car blist
)
1296 (if (and buffer-file-name
1297 (dired-in-this-tree buffer-file-name expanded-from-dir
))
1298 (let ((modflag (buffer-modified-p))
1299 (to-file (dired-replace-in-string
1300 (concat "^" (regexp-quote from-dir
))
1303 (set-visited-file-name to-file
)
1304 (set-buffer-modified-p modflag
))))
1305 (setq blist
(cdr blist
)))))
1307 (defun dired-rename-subdir-1 (dir to
)
1308 ;; Rename DIR to TO in headerlines and dired-subdir-alist, if DIR or
1309 ;; one of its subdirectories is expanded in this buffer.
1310 (let ((expanded-dir (expand-file-name dir
))
1311 (alist dired-subdir-alist
)
1314 (setq elt
(car alist
)
1316 (if (dired-in-this-tree (car elt
) expanded-dir
)
1317 ;; ELT's subdir is affected by the rename
1318 (dired-rename-subdir-2 elt dir to
)))
1319 (if (equal dir default-directory
)
1320 ;; if top level directory was renamed, lots of things have to be
1323 (dired-unadvertise dir
) ; we no longer dired DIR...
1324 (setq default-directory to
1325 dired-directory
(expand-file-name;; this is correct
1326 ;; with and without wildcards
1327 (file-name-nondirectory dired-directory
)
1329 (let ((new-name (file-name-nondirectory
1330 (directory-file-name dired-directory
))))
1331 ;; try to rename buffer, but just leave old name if new
1332 ;; name would already exist (don't try appending "<%d>")
1333 (or (get-buffer new-name
)
1334 (rename-buffer new-name
)))
1335 ;; ... we dired TO now:
1336 (dired-advertise)))))
1338 (defun dired-rename-subdir-2 (elt dir to
)
1339 ;; Update the headerline and dired-subdir-alist element, as well as
1340 ;; dired-switches-alist element, of directory described by
1341 ;; alist-element ELT to reflect the moving of DIR to TO. Thus, ELT
1342 ;; describes either DIR itself or a subdir of DIR.
1344 (let ((regexp (regexp-quote (directory-file-name dir
)))
1345 (newtext (directory-file-name to
))
1347 (goto-char (dired-get-subdir-min elt
))
1348 ;; Update subdir headerline in buffer
1349 (if (not (looking-at dired-subdir-regexp
))
1350 (error "%s not found where expected - dired-subdir-alist broken?"
1352 (goto-char (match-beginning 1))
1353 (if (re-search-forward regexp
(match-end 1) t
)
1354 (replace-match newtext t t
)
1355 (error "Expected to find `%s' in headerline of %s" dir
(car elt
))))
1356 ;; Update buffer-local dired-subdir-alist and dired-switches-alist
1357 (let ((cons (assoc-string (car elt
) dired-switches-alist
))
1358 (cur-dir (dired-normalize-subdir
1359 (dired-replace-in-string regexp newtext
(car elt
)))))
1360 (setcar elt cur-dir
)
1361 (when cons
(setcar cons cur-dir
))))))
1363 ;; Bound in dired-create-files
1364 (defvar overwrite-query
)
1365 (defvar overwrite-backup-query
)
1367 ;; The basic function for half a dozen variations on cp/mv/ln/ln -s.
1368 (defun dired-create-files (file-creator operation fn-list name-constructor
1369 &optional marker-char
)
1370 "Create one or more new files from a list of existing files FN-LIST.
1371 This function also handles querying the user, updating Dired
1372 buffers, and displaying a success or failure message.
1374 FILE-CREATOR should be a function. It is called once for each
1375 file in FN-LIST, and must create a new file, querying the user
1376 and updating Dired buffers as necessary. It should accept three
1377 arguments: the old file name, the new name, and an argument
1378 OK-IF-ALREADY-EXISTS with the same meaning as in `copy-file'.
1380 OPERATION should be a capitalized string describing the operation
1381 performed (e.g. `Copy'). It is used for error logging.
1383 FN-LIST is the list of files to copy (full absolute file names).
1385 NAME-CONSTRUCTOR should be a function accepting a single
1386 argument, the name of an old file, and returning either the
1387 corresponding new file name or nil to skip.
1389 Optional MARKER-CHAR is a character with which to mark every
1390 newfile's entry, or t to use the current marker character if the
1391 old file was marked."
1392 (let (dired-create-files-failures failures
1393 skipped
(success-count 0) (total (length fn-list
)))
1394 (let (to overwrite-query
1395 overwrite-backup-query
) ; for dired-handle-overwrite
1396 (dolist (from fn-list
)
1397 (setq to
(funcall name-constructor from
))
1401 (dired-log "Cannot %s to same file: %s\n"
1402 (downcase operation
) from
)))
1404 (setq skipped
(cons (dired-make-relative from
) skipped
))
1405 (let* ((overwrite (file-exists-p to
))
1406 (dired-overwrite-confirmed ; for dired-handle-overwrite
1408 (let ((help-form '(format "\
1409 Type SPC or `y' to overwrite file `%s',
1410 DEL or `n' to skip to next,
1411 ESC or `q' to not overwrite any of the remaining files,
1412 `!' to overwrite all remaining files with no more questions." to
)))
1413 (dired-query 'overwrite-query
1414 "Overwrite `%s'?" to
))))
1415 ;; must determine if FROM is marked before file-creator
1416 ;; gets a chance to delete it (in case of a move).
1418 (cond ((integerp marker-char
) marker-char
)
1419 (marker-char (dired-file-marker from
)) ; slow
1421 (when (and (file-directory-p from
)
1422 (file-directory-p to
)
1423 (eq file-creator
'dired-copy-file
))
1424 (setq to
(file-name-directory to
)))
1427 (funcall file-creator from to dired-overwrite-confirmed
)
1429 ;; If we get here, file-creator hasn't been aborted
1430 ;; and the old entry (if any) has to be deleted
1431 ;; before adding the new entry.
1432 (dired-remove-file to
))
1433 (setq success-count
(1+ success-count
))
1434 (message "%s: %d of %d" operation success-count total
)
1435 (dired-add-file to actual-marker-char
))
1436 (file-error ; FILE-CREATOR aborted
1438 (push (dired-make-relative from
)
1440 (dired-log "%s `%s' to `%s' failed:\n%s\n"
1441 operation from to err
))))))))
1443 (dired-create-files-failures
1444 (setq failures
(nconc failures dired-create-files-failures
))
1446 (format "%s failed for %d file%s in %d requests"
1447 operation
(length failures
)
1448 (dired-plural-s (length failures
))
1453 (format "%s failed for %d of %d file%s"
1454 operation
(length failures
)
1455 total
(dired-plural-s total
))
1459 (format "%s: %d of %d file%s skipped"
1460 operation
(length skipped
) total
1461 (dired-plural-s total
))
1464 (message "%s: %s file%s"
1465 operation success-count
(dired-plural-s success-count
)))))
1466 (dired-move-to-filename))
1468 (defun dired-do-create-files (op-symbol file-creator operation arg
1469 &optional marker-char op1
1471 "Create a new file for each marked file.
1472 Prompts user for target, which is a directory in which to create
1473 the new files. Target may also be a plain file if only one marked
1474 file exists. The way the default for the target directory is
1475 computed depends on the value of `dired-dwim-target-directory'.
1476 OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
1477 will determine whether pop-ups are appropriate for this OP-SYMBOL.
1478 FILE-CREATOR and OPERATION as in `dired-create-files'.
1479 ARG as in `dired-get-marked-files'.
1480 Optional arg MARKER-CHAR as in `dired-create-files'.
1481 Optional arg OP1 is an alternate form for OPERATION if there is
1483 Optional arg HOW-TO determiness how to treat the target.
1484 If HOW-TO is nil, use `file-directory-p' to determine if the
1485 target is a directory. If so, the marked file(s) are created
1486 inside that directory. Otherwise, the target is a plain file;
1487 an error is raised unless there is exactly one marked file.
1488 If HOW-TO is t, target is always treated as a plain file.
1489 Otherwise, HOW-TO should be a function of one argument, TARGET.
1490 If its return value is nil, TARGET is regarded as a plain file.
1491 If it return value is a list, TARGET is a generalized
1492 directory (e.g. some sort of archive). The first element of
1493 this list must be a function with at least four arguments:
1494 operation - as OPERATION above.
1495 rfn-list - list of the relative names for the marked files.
1496 fn-list - list of the absolute names for the marked files.
1497 target - the name of the target itself.
1498 The rest of into-dir are optional arguments.
1499 For any other return value, TARGET is treated as a directory."
1500 (or op1
(setq op1 operation
))
1501 (let* ((fn-list (dired-get-marked-files nil arg
))
1502 (rfn-list (mapcar (function dired-make-relative
) fn-list
))
1503 (dired-one-file ; fluid variable inside dired-create-files
1504 (and (consp fn-list
) (null (cdr fn-list
)) (car fn-list
)))
1505 (target-dir (dired-dwim-target-directory))
1506 (default (and dired-one-file
1507 (expand-file-name (file-name-nondirectory (car fn-list
))
1509 (defaults (dired-dwim-target-defaults fn-list target-dir
))
1510 (target (expand-file-name ; fluid variable inside dired-create-files
1511 (minibuffer-with-setup-hook
1513 (set (make-local-variable 'minibuffer-default-add-function
) nil
)
1514 (setq minibuffer-default defaults
))
1515 (dired-mark-read-file-name
1516 (concat (if dired-one-file op1 operation
) " %s to: ")
1517 target-dir op-symbol arg rfn-list default
))))
1518 (into-dir (cond ((null how-to
)
1519 ;; Allow DOS/Windows users to change the letter
1520 ;; case of a directory. If we don't test these
1521 ;; conditions up front, file-directory-p below
1522 ;; will return t because the filesystem is
1523 ;; case-insensitive, and Emacs will try to move
1524 ;; foo -> foo/foo, which fails.
1525 (if (and (memq system-type
'(ms-dos windows-nt cygwin
))
1526 (eq op-symbol
'move
)
1529 (expand-file-name (car fn-list
)))
1531 (expand-file-name target
)))
1533 (file-name-nondirectory (car fn-list
))
1534 (file-name-nondirectory target
))))
1536 (file-directory-p target
)))
1538 (t (funcall how-to target
)))))
1539 (if (and (consp into-dir
) (functionp (car into-dir
)))
1540 (apply (car into-dir
) operation rfn-list fn-list target
(cdr into-dir
))
1541 (if (not (or dired-one-file into-dir
))
1542 (error "Marked %s: target must be a directory: %s" operation target
))
1543 ;; rename-file bombs when moving directories unless we do this:
1544 (or into-dir
(setq target
(directory-file-name target
)))
1546 file-creator operation fn-list
1547 (if into-dir
; target is a directory
1548 ;; This function uses fluid variable target when called
1549 ;; inside dired-create-files:
1552 (expand-file-name (file-name-nondirectory from
) target
)))
1553 (function (lambda (_from) target
)))
1556 ;; Read arguments for a marked-files command that wants a file name,
1557 ;; perhaps popping up the list of marked files.
1558 ;; ARG is the prefix arg and indicates whether the files came from
1559 ;; marks (ARG=nil) or a repeat factor (integerp ARG).
1560 ;; If the current file was used, the list has but one element and ARG
1561 ;; does not matter. (It is non-nil, non-integer in that case, namely '(4)).
1562 ;; DEFAULT is the default value to return if the user just hits RET;
1563 ;; if it is omitted or nil, then the name of the directory is used.
1565 (defun dired-mark-read-file-name (prompt dir op-symbol arg files
1569 (function read-file-name
)
1570 (format prompt
(dired-mark-prompt arg files
)) dir default
))
1572 (defun dired-dwim-target-directory ()
1573 ;; Try to guess which target directory the user may want.
1574 ;; If there is a dired buffer displayed in one of the next windows,
1575 ;; use its current subdir, else use current subdir of this dired buffer.
1576 (let ((this-dir (and (eq major-mode
'dired-mode
)
1577 (dired-current-directory))))
1578 ;; non-dired buffer may want to profit from this function, e.g. vm-uudecode
1579 (if dired-dwim-target
1580 (let* ((other-win (get-window-with-predicate
1582 (with-current-buffer (window-buffer window
)
1583 (eq major-mode
'dired-mode
)))))
1584 (other-dir (and other-win
1585 (with-current-buffer (window-buffer other-win
)
1586 (and (eq major-mode
'dired-mode
)
1587 (dired-current-directory))))))
1588 (or other-dir this-dir
))
1591 (defun dired-dwim-target-defaults (fn-list target-dir
)
1592 ;; Return a list of default values for file-reading functions in Dired.
1593 ;; This list may contain directories from Dired buffers in other windows.
1594 ;; `fn-list' is a list of file names used to build a list of defaults.
1595 ;; When nil or more than one element, a list of defaults will
1596 ;; contain only directory names. `target-dir' is a directory name
1597 ;; to exclude from the returned list, for the case when this
1598 ;; directory name is already presented in initial input.
1599 ;; For Dired operations that support `dired-dwim-target',
1600 ;; the argument `target-dir' should have the value returned
1601 ;; from `dired-dwim-target-directory'.
1602 (let ((dired-one-file
1603 (and (consp fn-list
) (null (cdr fn-list
)) (car fn-list
)))
1604 (current-dir (and (eq major-mode
'dired-mode
)
1605 (dired-current-directory)))
1607 ;; Get a list of directories of visible buffers in dired-mode.
1608 (walk-windows (lambda (w)
1609 (with-current-buffer (window-buffer w
)
1610 (and (eq major-mode
'dired-mode
)
1611 (push (dired-current-directory) dired-dirs
)))))
1612 ;; Force the current dir to be the first in the list.
1614 (delete-dups (delq nil
(cons current-dir
(nreverse dired-dirs
)))))
1615 ;; Remove the target dir (if specified) or the current dir from
1616 ;; default values, because it should be already in initial input.
1617 (setq dired-dirs
(delete (or target-dir current-dir
) dired-dirs
))
1618 ;; Return a list of default values.
1620 ;; For one file operation, provide a list that contains
1621 ;; other directories, other directories with the appended filename
1622 ;; and the current directory with the appended filename, e.g.
1624 ;; 2. /TARGET-DIR/FILENAME
1625 ;; 3. /CURRENT-DIR/FILENAME
1627 (mapcar (lambda (dir)
1629 (file-name-nondirectory (car fn-list
)) dir
))
1630 (reverse dired-dirs
))
1631 (list (expand-file-name
1632 (file-name-nondirectory (car fn-list
))
1633 (or target-dir current-dir
))))
1634 ;; For multi-file operation, return only a list of other directories.
1639 (defun dired-create-directory (directory)
1640 "Create a directory called DIRECTORY.
1641 If DIRECTORY already exists, signal an error."
1643 (list (read-file-name "Create directory: " (dired-current-directory))))
1644 (let* ((expanded (directory-file-name (expand-file-name directory
)))
1646 (if (file-exists-p expanded
)
1647 (error "Cannot create directory %s: file exists" expanded
))
1648 ;; Find the topmost nonexistent parent dir (variable `new')
1649 (while (and try
(not (file-exists-p try
)) (not (equal new try
)))
1651 try
(directory-file-name (file-name-directory try
))))
1652 (make-directory expanded t
)
1654 (dired-add-file new
)
1655 (dired-move-to-filename))))
1657 (defun dired-into-dir-with-symlinks (target)
1658 (and (file-directory-p target
)
1659 (not (file-symlink-p target
))))
1660 ;; This may not always be what you want, especially if target is your
1661 ;; home directory and it happens to be a symbolic link, as is often the
1662 ;; case with NFS and automounters. Or if you want to make symlinks
1663 ;; into directories that themselves are only symlinks, also quite
1666 ;; So we don't use this function as value for HOW-TO in
1667 ;; dired-do-symlink, which has the minor disadvantage of
1668 ;; making links *into* a symlinked-dir, when you really wanted to
1669 ;; *overwrite* that symlink. In that (rare, I guess) case, you'll
1670 ;; just have to remove that symlink by hand before making your marked
1673 (defvar dired-copy-how-to-fn nil
1674 "Either nil or a function used by `dired-do-copy' to determine target.
1675 See HOW-TO argument for `dired-do-create-files'.")
1678 (defun dired-do-copy (&optional arg
)
1679 "Copy all marked (or next ARG) files, or copy the current file.
1680 This normally preserves the last-modified date when copying.
1681 When operating on just the current file, you specify the new name.
1682 When operating on multiple or marked files, you specify a directory,
1683 and new copies of these files are made in that directory
1684 with the same names that the files currently have. The default
1685 suggested for the target directory depends on the value of
1686 `dired-dwim-target', which see.
1688 This command copies symbolic links by creating new ones,
1691 (let ((dired-recursive-copies dired-recursive-copies
))
1692 (dired-do-create-files 'copy
(function dired-copy-file
)
1694 arg dired-keep-marker-copy
1695 nil dired-copy-how-to-fn
)))
1698 (defun dired-do-symlink (&optional arg
)
1699 "Make symbolic links to current file or all marked (or next ARG) files.
1700 When operating on just the current file, you specify the new name.
1701 When operating on multiple or marked files, you specify a directory
1702 and new symbolic links are made in that directory
1703 with the same names that the files currently have. The default
1704 suggested for the target directory depends on the value of
1705 `dired-dwim-target', which see.
1707 For relative symlinks, use \\[dired-do-relsymlink]."
1709 (dired-do-create-files 'symlink
(function make-symbolic-link
)
1710 "Symlink" arg dired-keep-marker-symlink
))
1713 (defun dired-do-hardlink (&optional arg
)
1714 "Add names (hard links) current file or all marked (or next ARG) files.
1715 When operating on just the current file, you specify the new name.
1716 When operating on multiple or marked files, you specify a directory
1717 and new hard links are made in that directory
1718 with the same names that the files currently have. The default
1719 suggested for the target directory depends on the value of
1720 `dired-dwim-target', which see."
1722 (dired-do-create-files 'hardlink
(function dired-hardlink
)
1723 "Hardlink" arg dired-keep-marker-hardlink
))
1725 (defun dired-hardlink (file newname
&optional ok-if-already-exists
)
1726 (dired-handle-overwrite newname
)
1727 ;; error is caught in -create-files
1728 (add-name-to-file file newname ok-if-already-exists
)
1729 ;; Update the link count
1730 (dired-relist-file file
))
1733 (defun dired-do-rename (&optional arg
)
1734 "Rename current file or all marked (or next ARG) files.
1735 When renaming just the current file, you specify the new name.
1736 When renaming multiple or marked files, you specify a directory.
1737 This command also renames any buffers that are visiting the files.
1738 The default suggested for the target directory depends on the value
1739 of `dired-dwim-target', which see."
1741 (dired-do-create-files 'move
(function dired-rename-file
)
1742 "Move" arg dired-keep-marker-rename
"Rename"))
1743 ;;;###end dired-cp.el
1746 ;;;###begin dired-re.el
1747 (defvar rename-regexp-query
)
1749 (defun dired-do-create-files-regexp
1750 (file-creator operation arg regexp newname
&optional whole-name marker-char
)
1751 ;; Create a new file for each marked file using regexps.
1752 ;; FILE-CREATOR and OPERATION as in dired-create-files.
1753 ;; ARG as in dired-get-marked-files.
1754 ;; Matches each marked file against REGEXP and constructs the new
1755 ;; filename from NEWNAME (like in function replace-match).
1756 ;; Optional arg WHOLE-NAME means match/replace the whole file name
1757 ;; instead of only the non-directory part of the file.
1758 ;; Optional arg MARKER-CHAR as in dired-create-files.
1759 (let* ((fn-list (dired-get-marked-files nil arg
))
1760 (operation-prompt (concat operation
" `%s' to `%s'?"))
1761 (rename-regexp-help-form (format "\
1762 Type SPC or `y' to %s one match, DEL or `n' to skip to next,
1763 `!' to %s all remaining matches with no more questions."
1764 (downcase operation
)
1765 (downcase operation
)))
1766 (regexp-name-constructor
1767 ;; Function to construct new filename using REGEXP and NEWNAME:
1768 (if whole-name
; easy (but rare) case
1771 (let ((to (dired-string-replace-match regexp from newname
))
1772 ;; must bind help-form directly around call to
1774 (help-form rename-regexp-help-form
))
1776 (and (dired-query 'rename-regexp-query
1781 (dired-log "%s: %s did not match regexp %s\n"
1782 operation from regexp
)))))
1783 ;; not whole-name, replace non-directory part only
1786 (let* ((new (dired-string-replace-match
1787 regexp
(file-name-nondirectory from
) newname
))
1788 (to (and new
; nil means there was no match
1789 (expand-file-name new
1790 (file-name-directory from
))))
1791 (help-form rename-regexp-help-form
))
1793 (and (dired-query 'rename-regexp-query
1795 (dired-make-relative from
)
1796 (dired-make-relative to
))
1798 (dired-log "%s: %s did not match regexp %s\n"
1799 operation
(file-name-nondirectory from
) regexp
)))))))
1800 rename-regexp-query
)
1802 file-creator operation fn-list regexp-name-constructor marker-char
)))
1804 (defun dired-mark-read-regexp (operation)
1805 ;; Prompt user about performing OPERATION.
1806 ;; Read and return list of: regexp newname arg whole-name.
1808 (equal 0 (prefix-numeric-value current-prefix-arg
)))
1810 (if whole-name nil current-prefix-arg
))
1813 (concat (if whole-name
"Abs. " "") operation
" from (regexp): ")))
1816 (concat (if whole-name
"Abs. " "") operation
" " regexp
" to: "))))
1817 (list regexp newname arg whole-name
)))
1820 (defun dired-do-rename-regexp (regexp newname
&optional arg whole-name
)
1821 "Rename selected files whose names match REGEXP to NEWNAME.
1823 With non-zero prefix argument ARG, the command operates on the next ARG
1824 files. Otherwise, it operates on all the marked files, or the current
1825 file if none are marked.
1827 As each match is found, the user must type a character saying
1828 what to do with it. For directions, type \\[help-command] at that time.
1829 NEWNAME may contain \\=\\<n> or \\& as in `query-replace-regexp'.
1830 REGEXP defaults to the last regexp used.
1832 With a zero prefix arg, renaming by regexp affects the absolute file name.
1833 Normally, only the non-directory part of the file name is used and changed."
1834 (interactive (dired-mark-read-regexp "Rename"))
1835 (dired-do-create-files-regexp
1836 (function dired-rename-file
)
1837 "Rename" arg regexp newname whole-name dired-keep-marker-rename
))
1840 (defun dired-do-copy-regexp (regexp newname
&optional arg whole-name
)
1841 "Copy selected files whose names match REGEXP to NEWNAME.
1842 See function `dired-do-rename-regexp' for more info."
1843 (interactive (dired-mark-read-regexp "Copy"))
1844 (let ((dired-recursive-copies nil
)) ; No recursive copies.
1845 (dired-do-create-files-regexp
1846 (function dired-copy-file
)
1847 (if dired-copy-preserve-time
"Copy [-p]" "Copy")
1848 arg regexp newname whole-name dired-keep-marker-copy
)))
1851 (defun dired-do-hardlink-regexp (regexp newname
&optional arg whole-name
)
1852 "Hardlink selected files whose names match REGEXP to NEWNAME.
1853 See function `dired-do-rename-regexp' for more info."
1854 (interactive (dired-mark-read-regexp "HardLink"))
1855 (dired-do-create-files-regexp
1856 (function add-name-to-file
)
1857 "HardLink" arg regexp newname whole-name dired-keep-marker-hardlink
))
1860 (defun dired-do-symlink-regexp (regexp newname
&optional arg whole-name
)
1861 "Symlink selected files whose names match REGEXP to NEWNAME.
1862 See function `dired-do-rename-regexp' for more info."
1863 (interactive (dired-mark-read-regexp "SymLink"))
1864 (dired-do-create-files-regexp
1865 (function make-symbolic-link
)
1866 "SymLink" arg regexp newname whole-name dired-keep-marker-symlink
))
1868 (defvar rename-non-directory-query
)
1870 (defun dired-create-files-non-directory
1871 (file-creator basename-constructor operation arg
)
1872 ;; Perform FILE-CREATOR on the non-directory part of marked files
1873 ;; using function BASENAME-CONSTRUCTOR, with query for each file.
1874 ;; OPERATION like in dired-create-files, ARG as in dired-get-marked-files.
1875 (let (rename-non-directory-query)
1879 (dired-get-marked-files nil arg
)
1882 (let ((to (concat (file-name-directory from
)
1883 (funcall basename-constructor
1884 (file-name-nondirectory from
)))))
1885 (and (let ((help-form (format "\
1886 Type SPC or `y' to %s one file, DEL or `n' to skip to next,
1887 `!' to %s all remaining matches with no more questions."
1888 (downcase operation
)
1889 (downcase operation
))))
1890 (dired-query 'rename-non-directory-query
1891 (concat operation
" `%s' to `%s'")
1892 (dired-make-relative from
)
1893 (dired-make-relative to
)))
1895 dired-keep-marker-rename
)))
1897 (defun dired-rename-non-directory (basename-constructor operation arg
)
1898 (dired-create-files-non-directory
1899 (function dired-rename-file
)
1900 basename-constructor operation arg
))
1903 (defun dired-upcase (&optional arg
)
1904 "Rename all marked (or next ARG) files to upper case."
1906 (dired-rename-non-directory (function upcase
) "Rename upcase" arg
))
1909 (defun dired-downcase (&optional arg
)
1910 "Rename all marked (or next ARG) files to lower case."
1912 (dired-rename-non-directory (function downcase
) "Rename downcase" arg
))
1914 ;;;###end dired-re.el
1917 ;;;###begin dired-ins.el
1920 (defun dired-maybe-insert-subdir (dirname &optional
1921 switches no-error-if-not-dir-p
)
1922 "Insert this subdirectory into the same dired buffer.
1923 If it is already present, just move to it (type \\[dired-do-redisplay] to refresh),
1924 else inserts it at its natural place (as `ls -lR' would have done).
1925 With a prefix arg, you may edit the ls switches used for this listing.
1926 You can add `R' to the switches to expand the whole tree starting at
1928 This function takes some pains to conform to `ls -lR' output.
1930 Dired remembers switches specified with a prefix arg, so that reverting
1931 the buffer will not reset them. However, using `dired-undo' to re-insert
1932 or delete subdirectories can bypass this machinery. Hence, you sometimes
1933 may have to reset some subdirectory switches after a `dired-undo'.
1934 You can reset all subdirectory switches to the default using
1935 \\<dired-mode-map>\\[dired-reset-subdir-switches].
1936 See Info node `(emacs)Subdir switches' for more details."
1938 (list (dired-get-filename)
1939 (if current-prefix-arg
1940 (read-string "Switches for listing: "
1941 (or dired-subdir-switches dired-actual-switches
)))))
1942 (let ((opoint (point)))
1943 ;; We don't need a marker for opoint as the subdir is always
1944 ;; inserted *after* opoint.
1945 (setq dirname
(file-name-as-directory dirname
))
1946 (or (and (not switches
)
1947 (dired-goto-subdir dirname
))
1948 (dired-insert-subdir dirname switches no-error-if-not-dir-p
))
1949 ;; Push mark so that it's easy to find back. Do this after the
1950 ;; insert message so that the user sees the `Mark set' message.
1951 (push-mark opoint
)))
1954 (defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p
)
1955 "Insert this subdirectory into the same dired buffer.
1956 If it is already present, overwrites previous entry,
1957 else inserts it at its natural place (as `ls -lR' would have done).
1958 With a prefix arg, you may edit the `ls' switches used for this listing.
1959 You can add `R' to the switches to expand the whole tree starting at
1961 This function takes some pains to conform to `ls -lR' output."
1962 ;; NO-ERROR-IF-NOT-DIR-P needed for special filesystems like
1963 ;; Prospero where dired-ls does the right thing, but
1964 ;; file-directory-p has not been redefined.
1966 (list (dired-get-filename)
1967 (if current-prefix-arg
1968 (read-string "Switches for listing: "
1969 (or dired-subdir-switches dired-actual-switches
)))))
1970 (setq dirname
(file-name-as-directory (expand-file-name dirname
)))
1971 (or no-error-if-not-dir-p
1972 (file-directory-p dirname
)
1973 (error "Attempt to insert a non-directory: %s" dirname
))
1974 (let ((elt (assoc dirname dired-subdir-alist
))
1975 (cons (assoc-string dirname dired-switches-alist
))
1976 (modflag (buffer-modified-p))
1977 (old-switches switches
)
1978 switches-have-R mark-alist case-fold-search buffer-read-only
)
1979 (and (not switches
) cons
(setq switches
(cdr cons
)))
1980 (dired-insert-subdir-validate dirname switches
)
1981 ;; case-fold-search is nil now, so we can test for capital `R':
1982 (if (setq switches-have-R
(and switches
(string-match "R" switches
)))
1983 ;; avoid duplicated subdirs
1984 (setq mark-alist
(dired-kill-tree dirname t
)))
1986 ;; If subdir is already present, remove it and remember its marks
1987 (setq mark-alist
(nconc (dired-insert-subdir-del elt
) mark-alist
))
1988 (dired-insert-subdir-newpos dirname
)) ; else compute new position
1989 (dired-insert-subdir-doupdate
1990 dirname elt
(dired-insert-subdir-doinsert dirname switches
))
1993 (setcdr cons switches
)
1994 (push (cons dirname switches
) dired-switches-alist
)))
1995 (when switches-have-R
1996 (dired-build-subdir-alist switches
)
1997 (setq switches
(dired-replace-in-string "R" "" switches
))
1998 (dolist (cur-ass dired-subdir-alist
)
1999 (let ((cur-dir (car cur-ass
)))
2000 (and (dired-in-this-tree cur-dir dirname
)
2001 (let ((cur-cons (assoc-string cur-dir dired-switches-alist
)))
2003 (setcdr cur-cons switches
)
2004 (push (cons cur-dir switches
) dired-switches-alist
)))))))
2005 (dired-initial-position dirname
)
2006 (save-excursion (dired-mark-remembered mark-alist
))
2007 (restore-buffer-modified-p modflag
)))
2009 (defun dired-insert-subdir-validate (dirname &optional switches
)
2010 ;; Check that it is valid to insert DIRNAME with SWITCHES.
2011 ;; Signal an error if invalid (e.g. user typed `i' on `..').
2012 (or (dired-in-this-tree dirname
(expand-file-name default-directory
))
2013 (error "%s: not in this directory tree" dirname
))
2014 (let ((real-switches (or switches dired-subdir-switches
)))
2016 (let (case-fold-search)
2020 (or (eq (null (string-match x real-switches
))
2021 (null (string-match x dired-actual-switches
)))
2023 "Can't have dirs with and without -%s switches together" x
))))
2024 ;; all switches that make a difference to dired-get-filename:
2027 (defun dired-alist-add (dir new-marker
)
2028 ;; Add new DIR at NEW-MARKER. Sort alist.
2029 (dired-alist-add-1 dir new-marker
)
2032 (defun dired-alist-sort ()
2033 ;; Keep the alist sorted on buffer position.
2034 (setq dired-subdir-alist
2035 (sort dired-subdir-alist
2036 (function (lambda (elt1 elt2
)
2037 (> (dired-get-subdir-min elt1
)
2038 (dired-get-subdir-min elt2
)))))))
2040 (defun dired-kill-tree (dirname &optional remember-marks kill-root
)
2041 "Kill all proper subdirs of DIRNAME, excluding DIRNAME itself.
2042 Interactively, you can kill DIRNAME as well by using a prefix argument.
2043 In interactive use, the command prompts for DIRNAME.
2045 When called from Lisp, if REMEMBER-MARKS is non-nil, return an alist
2046 of marked files. If KILL-ROOT is non-nil, kill DIRNAME as well."
2047 (interactive "DKill tree below directory: \ni\nP")
2048 (setq dirname
(file-name-as-directory (expand-file-name dirname
)))
2049 (let ((s-alist dired-subdir-alist
) dir m-alist
)
2051 (setq dir
(car (car s-alist
))
2052 s-alist
(cdr s-alist
))
2053 (and (or kill-root
(not (string-equal dir dirname
)))
2054 (dired-in-this-tree dir dirname
)
2055 (dired-goto-subdir dir
)
2056 (setq m-alist
(nconc (dired-kill-subdir remember-marks
) m-alist
))))
2059 (defun dired-insert-subdir-newpos (new-dir)
2060 ;; Find pos for new subdir, according to tree order.
2061 ;;(goto-char (point-max))
2062 (let ((alist dired-subdir-alist
) elt dir pos new-pos
)
2064 (setq elt
(car alist
)
2067 (if (dired-tree-lessp dir new-dir
)
2068 ;; Insert NEW-DIR after DIR
2069 (setq new-pos
(dired-get-subdir-max elt
)
2071 (goto-char new-pos
))
2072 ;; want a separating newline between subdirs
2078 (defun dired-insert-subdir-del (element)
2079 ;; Erase an already present subdir (given by ELEMENT) from buffer.
2080 ;; Move to that buffer position. Return a mark-alist.
2081 (let ((begin-marker (dired-get-subdir-min element
)))
2082 (goto-char begin-marker
)
2083 ;; Are at beginning of subdir (and inside it!). Now determine its end:
2084 (goto-char (dired-subdir-max))
2085 (or (eobp);; want a separating newline _between_ subdirs:
2088 (dired-remember-marks begin-marker
(point))
2089 (delete-region begin-marker
(point)))))
2091 (defun dired-insert-subdir-doinsert (dirname switches
)
2092 ;; Insert ls output after point.
2093 ;; Return the boundary of the inserted text (as list of BEG and END).
2095 (let ((begin (point)))
2096 (let ((dired-actual-switches
2098 dired-subdir-switches
2099 (dired-replace-in-string "R" "" dired-actual-switches
))))
2100 (if (equal dirname
(car (car (last dired-subdir-alist
))))
2101 ;; If doing the top level directory of the buffer,
2102 ;; redo it as specified in dired-directory.
2103 (dired-readin-insert)
2104 (dired-insert-directory dirname dired-actual-switches nil nil t
)))
2105 (list begin
(point)))))
2107 (defun dired-insert-subdir-doupdate (dirname elt beg-end
)
2108 ;; Point is at the correct subdir alist position for ELT,
2109 ;; BEG-END is the subdir-region (as list of begin and end).
2110 (if elt
; subdir was already present
2111 ;; update its position (should actually be unchanged)
2112 (set-marker (dired-get-subdir-min elt
) (point-marker))
2113 (dired-alist-add dirname
(point-marker)))
2114 ;; The hook may depend on the subdir-alist containing the just
2115 ;; inserted subdir, so run it after dired-alist-add:
2116 (if dired-after-readin-hook
2118 (let ((begin (nth 0 beg-end
))
2119 (end (nth 1 beg-end
)))
2122 (narrow-to-region begin end
)
2123 ;; hook may add or delete lines, but the subdir boundary
2125 (run-hooks 'dired-after-readin-hook
))))))
2127 (defun dired-tree-lessp (dir1 dir2
)
2128 ;; Lexicographic order on file name components, like `ls -lR':
2129 ;; DIR1 < DIR2 if DIR1 comes *before* DIR2 in an `ls -lR' listing,
2130 ;; i.e., if DIR1 is a (grand)parent dir of DIR2,
2131 ;; or DIR1 and DIR2 are in the same parentdir and their last
2132 ;; components are string-lessp.
2133 ;; Thus ("/usr/" "/usr/bin") and ("/usr/a/" "/usr/b/") are tree-lessp.
2134 ;; string-lessp could arguably be replaced by file-newer-than-file-p
2135 ;; if dired-actual-switches contained `t'.
2136 (setq dir1
(file-name-as-directory dir1
)
2137 dir2
(file-name-as-directory dir2
))
2138 (let ((components-1 (dired-split "/" dir1
))
2139 (components-2 (dired-split "/" dir2
)))
2140 (while (and components-1
2142 (equal (car components-1
) (car components-2
)))
2143 (setq components-1
(cdr components-1
)
2144 components-2
(cdr components-2
)))
2145 (let ((c1 (car components-1
))
2146 (c2 (car components-2
)))
2149 (string-lessp c1 c2
))
2150 ((and (null c1
) (null c2
))
2151 nil
) ; they are equal, not lessp
2152 ((null c1
) ; c2 is a subdir of c1: c1<c2
2154 ((null c2
) ; c1 is a subdir of c2: c1>c2
2156 (t (error "This can't happen"))))))
2158 ;; There should be a builtin split function - inverse to mapconcat.
2159 (defun dired-split (pat str
&optional limit
)
2160 "Splitting on regexp PAT, turn string STR into a list of substrings.
2161 Optional third arg LIMIT (>= 1) is a limit to the length of the
2163 Thus, if SEP is a regexp that only matches itself,
2165 (mapconcat 'identity (dired-split SEP STRING) SEP)
2167 is always equal to STRING."
2168 (let* ((start (string-match pat str
))
2169 (result (list (substring str
0 start
)))
2171 (end (if start
(match-end 0))))
2172 (if end
; else nothing left
2173 (while (and (or (not (integerp limit
))
2175 (string-match pat str end
))
2176 (setq start
(match-beginning 0)
2178 result
(cons (substring str end start
) result
)
2182 (if (and (or (not (integerp limit
))
2184 end
) ; else nothing left
2186 (cons (substring str end
) result
)))
2189 ;;; moving by subdirectories
2192 (defun dired-prev-subdir (arg &optional no-error-if-not-found no-skip
)
2193 "Go to previous subdirectory, regardless of level.
2194 When called interactively and not on a subdir line, go to this subdir's line."
2197 (list (if current-prefix-arg
2198 (prefix-numeric-value current-prefix-arg
)
2199 ;; if on subdir start already, don't stay there!
2200 (if (dired-get-subdir) 1 0))))
2201 (dired-next-subdir (- arg
) no-error-if-not-found no-skip
))
2203 (defun dired-subdir-min ()
2205 (if (not (dired-prev-subdir 0 t t
))
2206 (error "Not in a subdir!")
2210 (defun dired-goto-subdir (dir)
2211 "Go to end of header line of DIR in this dired buffer.
2212 Return value of point on success, otherwise return nil.
2213 The next char is either \\n, or \\r if DIR is hidden."
2215 (prog1 ; let push-mark display its message
2216 (list (expand-file-name
2217 (completing-read "Goto in situ directory: " ; prompt
2218 dired-subdir-alist
; table
2221 (dired-current-directory))))
2223 (setq dir
(file-name-as-directory dir
))
2224 (let ((elt (assoc dir dired-subdir-alist
)))
2226 (goto-char (dired-get-subdir-min elt
))
2227 ;; dired-subdir-hidden-p and dired-add-entry depend on point being
2228 ;; at either \r or \n after this function succeeds.
2229 (progn (skip-chars-forward "^\r\n")
2233 (defun dired-mark-subdir-files ()
2234 "Mark all files except `.' and `..' in current subdirectory.
2235 If the Dired buffer shows multiple directories, this command
2236 marks the files listed in the subdirectory that point is in."
2238 (let ((p-min (dired-subdir-min)))
2239 (dired-mark-files-in-region p-min
(dired-subdir-max))))
2242 (defun dired-kill-subdir (&optional remember-marks
)
2243 "Remove all lines of current subdirectory.
2244 Lower levels are unaffected."
2245 ;; With optional REMEMBER-MARKS, return a mark-alist.
2247 (let* ((beg (dired-subdir-min))
2248 (end (dired-subdir-max))
2249 (modflag (buffer-modified-p))
2250 (cur-dir (dired-current-directory))
2251 (cons (assoc-string cur-dir dired-switches-alist
))
2253 (if (equal cur-dir default-directory
)
2254 (error "Attempt to kill top level directory"))
2256 (if remember-marks
(dired-remember-marks beg end
))
2257 (delete-region beg end
)
2258 (if (eobp) ; don't leave final blank line
2260 (dired-unsubdir cur-dir
)
2262 (setq dired-switches-alist
(delete cons dired-switches-alist
)))
2263 (restore-buffer-modified-p modflag
))))
2265 (defun dired-unsubdir (dir)
2266 ;; Remove DIR from the alist
2267 (setq dired-subdir-alist
2268 (delq (assoc dir dired-subdir-alist
) dired-subdir-alist
)))
2271 (defun dired-tree-up (arg)
2272 "Go up ARG levels in the dired tree."
2274 (let ((dir (dired-current-directory)))
2277 dir
(file-name-directory (directory-file-name dir
))))
2278 ;;(setq dir (expand-file-name dir))
2279 (or (dired-goto-subdir dir
)
2280 (error "Cannot go up to %s - not in this tree" dir
))))
2283 (defun dired-tree-down ()
2284 "Go down in the dired tree."
2286 (let ((dir (dired-current-directory)) ; has slash
2287 pos case-fold-search
) ; filenames are case sensitive
2288 (let ((rest (reverse dired-subdir-alist
)) elt
)
2290 (setq elt
(car rest
)
2292 (if (dired-in-this-tree (directory-file-name (car elt
)) dir
)
2294 pos
(dired-goto-subdir (car elt
))))))
2297 (error "At the bottom"))))
2301 (defun dired-unhide-subdir ()
2302 (let (buffer-read-only)
2303 (subst-char-in-region (dired-subdir-min) (dired-subdir-max) ?
\r ?
\n)))
2305 (defun dired-hide-check ()
2306 (or selective-display
2307 (error "selective-display must be t for subdir hiding to work!")))
2309 (defun dired-subdir-hidden-p (dir)
2310 (and selective-display
2312 (dired-goto-subdir dir
)
2313 (looking-at "\r"))))
2316 (defun dired-hide-subdir (arg)
2317 "Hide or unhide the current subdirectory and move to next directory.
2318 Optional prefix arg is a repeat factor.
2319 Use \\[dired-hide-all] to (un)hide all directories."
2322 (let ((modflag (buffer-modified-p)))
2323 (while (>= (setq arg
(1- arg
)) 0)
2324 (let* ((cur-dir (dired-current-directory))
2325 (hidden-p (dired-subdir-hidden-p cur-dir
))
2326 (elt (assoc cur-dir dired-subdir-alist
))
2327 (end-pos (1- (dired-get-subdir-max elt
)))
2329 ;; keep header line visible, hide rest
2330 (goto-char (dired-get-subdir-min elt
))
2331 (skip-chars-forward "^\n\r")
2333 (subst-char-in-region (point) end-pos ?
\r ?
\n)
2334 (subst-char-in-region (point) end-pos ?
\n ?
\r)))
2335 (dired-next-subdir 1 t
))
2336 (restore-buffer-modified-p modflag
)))
2339 (defun dired-hide-all (&optional ignored
)
2340 "Hide all subdirectories, leaving only their header lines.
2341 If there is already something hidden, make everything visible again.
2342 Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."
2345 (let ((modflag (buffer-modified-p))
2348 (goto-char (point-min))
2349 (search-forward "\r" nil t
))
2350 ;; unhide - bombs on \r in filenames
2351 (subst-char-in-region (point-min) (point-max) ?
\r ?
\n)
2353 (let ((pos (point-max)) ; pos of end of last directory
2354 (alist dired-subdir-alist
))
2355 (while alist
; while there are dirs before pos
2356 (subst-char-in-region (dired-get-subdir-min (car alist
)) ; pos of prev dir
2358 (goto-char pos
) ; current dir
2359 ;; we're somewhere on current dir's line
2363 (setq pos
(dired-get-subdir-min (car alist
))) ; prev dir gets current dir
2364 (setq alist
(cdr alist
)))))
2365 (restore-buffer-modified-p modflag
)))
2367 ;;;###end dired-ins.el
2370 ;; Search only in file names in the Dired buffer.
2372 (defcustom dired-isearch-filenames nil
2373 "Non-nil to Isearch in file names only.
2374 If t, Isearch in Dired always matches only file names.
2375 If `dwim', Isearch matches file names when initial point position is on
2376 a file name. Otherwise, it searches the whole buffer without restrictions."
2377 :type
'(choice (const :tag
"No restrictions" nil
)
2378 (const :tag
"When point is on a file name initially, search file names" dwim
)
2379 (const :tag
"Always search in file names" t
))
2383 (defvar dired-isearch-filter-predicate-orig nil
)
2385 (defun dired-isearch-filenames-toggle ()
2386 "Toggle file names searching on or off.
2387 When on, Isearch skips matches outside file names using the predicate
2388 `dired-isearch-filter-filenames' that matches only at file names.
2389 When off, it uses the original predicate."
2391 (setq isearch-filter-predicate
2392 (if (eq isearch-filter-predicate
'dired-isearch-filter-filenames
)
2393 dired-isearch-filter-predicate-orig
2394 'dired-isearch-filter-filenames
))
2395 (setq isearch-success t isearch-adjusted t
)
2399 (defun dired-isearch-filenames-setup ()
2400 "Set up isearch to search in Dired file names.
2401 Intended to be added to `isearch-mode-hook'."
2402 (when (or (eq dired-isearch-filenames t
)
2403 (and (eq dired-isearch-filenames
'dwim
)
2404 (get-text-property (point) 'dired-filename
)))
2405 (setq isearch-message-prefix-add
"filename ")
2406 (define-key isearch-mode-map
"\M-sf" 'dired-isearch-filenames-toggle
)
2407 (setq dired-isearch-filter-predicate-orig
2408 (default-value 'isearch-filter-predicate
))
2409 (setq-default isearch-filter-predicate
'dired-isearch-filter-filenames
)
2410 (add-hook 'isearch-mode-end-hook
'dired-isearch-filenames-end nil t
)))
2412 (defun dired-isearch-filenames-end ()
2413 "Clean up the Dired file name search after terminating isearch."
2414 (setq isearch-message-prefix-add nil
)
2415 (define-key isearch-mode-map
"\M-sf" nil
)
2416 (setq-default isearch-filter-predicate dired-isearch-filter-predicate-orig
)
2417 (remove-hook 'isearch-mode-end-hook
'dired-isearch-filenames-end t
))
2419 (defun dired-isearch-filter-filenames (beg end
)
2420 "Test whether the current search hit is a visible file name.
2421 Return non-nil if the text from BEG to END is part of a file
2422 name (has the text property `dired-filename') and is visible."
2423 (and (isearch-filter-visible beg end
)
2424 (if dired-isearch-filenames
2425 (text-property-not-all (min beg end
) (max beg end
)
2426 'dired-filename nil
)
2430 (defun dired-isearch-filenames ()
2431 "Search for a string using Isearch only in file names in the Dired buffer."
2433 (let ((dired-isearch-filenames t
))
2437 (defun dired-isearch-filenames-regexp ()
2438 "Search for a regexp using Isearch only in file names in the Dired buffer."
2440 (let ((dired-isearch-filenames t
))
2441 (isearch-forward-regexp)))
2444 ;; Functions for searching in tags style among marked files.
2447 (defun dired-do-isearch ()
2448 "Search for a string through all marked files using Isearch."
2450 (multi-isearch-files
2451 (dired-get-marked-files nil nil
'dired-nondirectory-p
)))
2454 (defun dired-do-isearch-regexp ()
2455 "Search for a regexp through all marked files using Isearch."
2457 (multi-isearch-files-regexp
2458 (dired-get-marked-files nil nil
'dired-nondirectory-p
)))
2461 (defun dired-do-search (regexp)
2462 "Search through all marked files for a match for REGEXP.
2463 Stops when a match is found.
2464 To continue searching for next match, use command \\[tags-loop-continue]."
2465 (interactive "sSearch marked files (regexp): ")
2466 (tags-search regexp
'(dired-get-marked-files nil nil
'dired-nondirectory-p
)))
2469 (defun dired-do-query-replace-regexp (from to
&optional delimited
)
2470 "Do `query-replace-regexp' of FROM with TO, on all marked files.
2471 Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
2472 If you exit (\\[keyboard-quit], RET or q), you can resume the query replace
2473 with the command \\[tags-loop-continue]."
2476 (query-replace-read-args
2477 "Query replace regexp in marked files" t t
)))
2478 (list (nth 0 common
) (nth 1 common
) (nth 2 common
))))
2479 (dolist (file (dired-get-marked-files nil nil
'dired-nondirectory-p
))
2480 (let ((buffer (get-file-buffer file
)))
2481 (if (and buffer
(with-current-buffer buffer
2483 (error "File `%s' is visited read-only" file
))))
2484 (tags-query-replace from to delimited
2485 '(dired-get-marked-files nil nil
'dired-nondirectory-p
)))
2487 (defun dired-nondirectory-p (file)
2488 (not (file-directory-p file
)))
2491 (defun dired-show-file-type (file &optional deref-symlinks
)
2492 "Print the type of FILE, according to the `file' command.
2493 If FILE is a symbolic link and the optional argument DEREF-SYMLINKS is
2494 true then the type of the file linked to by FILE is printed instead."
2495 (interactive (list (dired-get-filename t
) current-prefix-arg
))
2496 (let (process-file-side-effects)
2499 (process-file "file" nil t t
"-L" "--" file
)
2500 (process-file "file" nil t t
"--" file
))
2502 (backward-delete-char 1))
2503 (message "%s" (buffer-string)))))
2505 (provide 'dired-aux
)
2508 ;; byte-compile-dynamic: t
2509 ;; generated-autoload-file: "dired.el"
2512 ;;; dired-aux.el ends here