;;;###autoload
(defun dired-diff (file &optional switches)
"Compare file at point with file FILE using `diff'.
-FILE defaults to the file at the mark. (That's the mark set by
-\\[set-mark-command], not by Dired's \\[dired-mark] command.)
-The prompted-for FILE is the first file given to `diff'.
+If called interactively, prompt for FILE; if the file at point
+has a backup file, use that as the default.
+
+FILE is the first file given to `diff'.
With prefix arg, prompt for second argument SWITCHES,
which is the string of command switches for `diff'."
(interactive
(let* ((current (dired-get-filename t))
- ;; Get the file at the mark.
- (file-at-mark (if (mark t)
- (save-excursion (goto-char (mark t))
- (dired-get-filename t t))))
- ;; Use it as default if it's not the same as the current file,
- ;; and the target dir is the current dir or the mark is active.
- (default (if (and (not (equal file-at-mark current))
- (or (equal (dired-dwim-target-directory)
- (dired-current-directory))
- mark-active))
- file-at-mark))
- (target-dir (if default
- (dired-current-directory)
- (dired-dwim-target-directory)))
- (defaults (dired-dwim-target-defaults (list current) target-dir)))
- (require 'diff)
- (list
- (minibuffer-with-setup-hook
- (lambda ()
- (set (make-local-variable 'minibuffer-default-add-function) nil)
- (setq minibuffer-default defaults))
- (read-file-name
- (format "Diff %s with%s: " current
- (if default (format " (default %s)" default) ""))
- target-dir default t))
- (if current-prefix-arg
- (read-string "Options for diff: "
- (if (stringp diff-switches)
- diff-switches
- (mapconcat 'identity diff-switches " ")))))))
+ (oldf (file-newest-backup current))
+ (dir (if oldf (file-name-directory oldf))))
+ (list (read-file-name
+ (format "Diff %s with%s: "
+ (file-name-nondirectory current)
+ (if oldf
+ (concat " (default "
+ (file-name-nondirectory oldf)
+ ")")
+ ""))
+ dir oldf t)
+ (if current-prefix-arg
+ (read-string "Options for diff: "
+ (if (stringp diff-switches)
+ diff-switches
+ (mapconcat 'identity diff-switches " ")))))))
(let ((current (dired-get-filename t)))
(when (or (equal (expand-file-name file)
(expand-file-name current))
(function dired-check-process)
(append
(list operation program)
- (unless (string-equal new-attribute "")
+ (unless (or (string-equal new-attribute "")
+ ;; Use `eq' instead of `equal'
+ ;; to detect empty input (bug#12399).
+ (eq new-attribute default))
(if (eq op-symbol 'touch)
(list "-t" new-attribute)
(list new-attribute)))
INITIAL, if non-nil, is the initial minibuffer input.
OP-SYMBOL is an operation symbol (see `dired-no-confirm').
-ARG is normally the prefix argument for the calling command.
-FILES should be a list of file names.
+ARG is normally the prefix argument for the calling command;
+it is passed as the first argument to `dired-mark-prompt'.
+FILES should be a list of marked files' names.
-DEFAULT-VALUE, if non-nil, should be a \"standard\" value or list
-of such values, available via history commands. Note that if the
-user enters empty input, this function returns the empty string,
-not DEFAULT-VALUE.
+Optional arg DEFAULT-VALUE is a default value or list of default
+values, passed as the seventh arg to `completing-read'.
-Optional argument COLLECTION is a collection of possible completions,
-suitable for use by `completing-read'."
+Optional arg COLLECTION is a collection of possible completions,
+passed as the second arg to `completing-read'."
(dired-mark-pop-up nil op-symbol files
'completing-read
(format prompt (dired-mark-prompt arg files))
(defun dired-do-async-shell-command (command &optional arg file-list)
"Run a shell command COMMAND on the marked files asynchronously.
-Like `dired-do-shell-command' but if COMMAND doesn't end in ampersand,
-adds `* &' surrounded by whitespace and executes the command asynchronously.
+Like `dired-do-shell-command', but adds `&' at the end of COMMAND
+to execute it asynchronously.
+
+When operating on multiple files, asynchronous commands
+are executed in the background on each file in parallel.
+In shell syntax this means separating the individual commands
+with `&'. However, when COMMAND ends in `;' or `;&' then commands
+are executed in the background on each file sequentially waiting
+for each command to terminate before running the next command.
+In shell syntax this means separating the individual commands with `;'.
+
The output appears in the buffer `*Async Shell Command*'."
(interactive
(let ((files (dired-get-marked-files t current-prefix-arg)))
(dired-read-shell-command "& on %s: " current-prefix-arg files)
current-prefix-arg
files)))
- (unless (string-match "[*?][ \t]*\\'" command)
- (setq command (concat command " *")))
(unless (string-match "&[ \t]*\\'" command)
(setq command (concat command " &")))
(dired-do-shell-command command arg file-list))
-;; The in-background argument is only needed in Emacs 18 where
-;; shell-command doesn't understand an appended ampersand `&'.
;;;###autoload
(defun dired-do-shell-command (command &optional arg file-list)
"Run a shell command COMMAND on the marked files.
-If no files are marked or a specific numeric prefix arg is given,
+If no files are marked or a numeric prefix arg is given,
the next ARG files are used. Just \\[universal-argument] means the current file.
The prompt mentions the file(s) or the marker, as appropriate.
it, write `*\"\"' in place of just `*'. This is equivalent to just
`*' in the shell, but avoids Dired's special handling.
-If COMMAND produces output, it goes to a separate buffer.
+If COMMAND ends in `&', `;', or `;&', it is executed in the
+background asynchronously, and the output appears in the buffer
+`*Async Shell Command*'. When operating on multiple files and COMMAND
+ends in `&', the shell command is executed on each file in parallel.
+However, when COMMAND ends in `;' or `;&' then commands are executed
+in the background on each file sequentially waiting for each command
+to terminate before running the next command. You can also use
+`dired-do-async-shell-command' that automatically adds `&'.
+
+Otherwise, COMMAND is executed synchronously, and the output
+appears in the buffer `*Shell Command Output*'.
This feature does not try to redisplay Dired buffers afterward, as
there's no telling what files COMMAND may have changed.
(let ((files (dired-get-marked-files t current-prefix-arg)))
(list
;; Want to give feedback whether this file or marked files are used:
- (dired-read-shell-command (concat "! on "
- "%s: ")
- current-prefix-arg
- files)
+ (dired-read-shell-command "! on %s: " current-prefix-arg files)
current-prefix-arg
files)))
(let* ((on-each (not (string-match dired-star-subst-regexp command)))
;; Might be redefined for smarter things and could then use RAW-ARG
;; (coming from interactive P and currently ignored) to decide what to do.
;; Smart would be a way to access basename or extension of file names.
- (let ((stuff-it
- (if (or (string-match dired-star-subst-regexp command)
- (string-match dired-quark-subst-regexp command))
- (lambda (x)
- (let ((retval command))
- (while (string-match
- "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
- (setq retval (replace-match x t t retval 2)))
- retval))
- (lambda (x) (concat command dired-mark-separator x)))))
- (if on-each
- (mapconcat stuff-it (mapcar 'shell-quote-argument file-list) ";")
- (let ((files (mapconcat 'shell-quote-argument
- file-list dired-mark-separator)))
- (if (> (length file-list) 1)
- (setq files (concat dired-mark-prefix files dired-mark-postfix)))
- (funcall stuff-it files)))))
+ (let* ((in-background (string-match "[ \t]*&[ \t]*\\'" command))
+ (command (if in-background
+ (substring command 0 (match-beginning 0))
+ command))
+ (sequentially (string-match "[ \t]*;[ \t]*\\'" command))
+ (command (if sequentially
+ (substring command 0 (match-beginning 0))
+ command))
+ (stuff-it
+ (if (or (string-match dired-star-subst-regexp command)
+ (string-match dired-quark-subst-regexp command))
+ (lambda (x)
+ (let ((retval command))
+ (while (string-match
+ "\\(^\\|[ \t]\\)\\([*?]\\)\\([ \t]\\|$\\)" retval)
+ (setq retval (replace-match x t t retval 2)))
+ retval))
+ (lambda (x) (concat command dired-mark-separator x)))))
+ (concat
+ (if on-each
+ (mapconcat stuff-it (mapcar 'shell-quote-argument file-list)
+ (if (and in-background (not sequentially)) "&" ";"))
+ (let ((files (mapconcat 'shell-quote-argument
+ file-list dired-mark-separator)))
+ (if (> (length file-list) 1)
+ (setq files (concat dired-mark-prefix files dired-mark-postfix)))
+ (funcall stuff-it files)))
+ (if in-background "&" ""))))
;; This is an extra function so that it can be redefined by ange-ftp.
;;;###autoload
argument, the name of an old file, and returning either the
corresponding new file name or nil to skip.
-Optional MARKER-CHAR is a character with which to mark every
-newfile's entry, or t to use the current marker character if the
-old file was marked."
+If optional argument MARKER-CHAR is non-nil, mark each
+newly-created file's Dired entry with the character MARKER-CHAR,
+or with the current marker character if MARKER-CHAR is t."
(let (dired-create-files-failures failures
skipped (success-count 0) (total (length fn-list)))
(let (to overwrite-query
&optional marker-char op1
how-to)
"Create a new file for each marked file.
-Prompts user for target, which is a directory in which to create
- the new files. Target may also be a plain file if only one marked
- file exists. The way the default for the target directory is
- computed depends on the value of `dired-dwim-target-directory'.
+Prompt user for a target directory in which to create the new
+ files. The target may also be a non-directory file, if only
+ one file is marked. The initial suggestion for target is the
+ Dired buffer's current directory (or, if `dired-dwim-target' is
+ non-nil, the current directory of a neighboring Dired window).
OP-SYMBOL is the symbol for the operation. Function `dired-mark-pop-up'
will determine whether pop-ups are appropriate for this OP-SYMBOL.
FILE-CREATOR and OPERATION as in `dired-create-files'.
;;;###autoload
(defun dired-do-copy (&optional arg)
"Copy all marked (or next ARG) files, or copy the current file.
-This normally preserves the last-modified date when copying.
-When operating on just the current file, you specify the new name.
-When operating on multiple or marked files, you specify a directory,
-and new copies of these files are made in that directory
-with the same names that the files currently have. The default
-suggested for the target directory depends on the value of
-`dired-dwim-target', which see.
+When operating on just the current file, prompt for the new name.
-This command copies symbolic links by creating new ones,
-like `cp -d'."
+When operating on multiple or marked files, prompt for a target
+directory, and make the new copies in that directory, with the
+same names as the original files. The initial suggestion for the
+target directory is the Dired buffer's current directory (or, if
+`dired-dwim-target' is non-nil, the current directory of a
+neighboring Dired window).
+
+If `dired-copy-preserve-time' is non-nil, this command preserves
+the modification time of each old file in the copy, similar to
+the \"-p\" option for the \"cp\" shell command.
+
+This command copies symbolic links by creating new ones, similar
+to the \"-d\" option for the \"cp\" shell command."
(interactive "P")
(let ((dired-recursive-copies dired-recursive-copies))
(dired-do-create-files 'copy (function dired-copy-file)
;;;###autoload
(defun dired-insert-subdir (dirname &optional switches no-error-if-not-dir-p)
- "Insert this subdirectory into the same dired buffer.
-If it is already present, overwrites previous entry,
- else inserts it at its natural place (as `ls -lR' would have done).
+ "Insert this subdirectory into the same Dired buffer.
+If it is already present, overwrite the previous entry;
+ otherwise, insert it at its natural place (as `ls -lR' would
+ have done).
With a prefix arg, you may edit the `ls' switches used for this listing.
You can add `R' to the switches to expand the whole tree starting at
this subdirectory.
HCoop / bpt / emacs.git / blobdiff