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;;; find-dired.el --- run a `find' command and dired the output
;; Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
;; Author: Roland McGrath <roland@gnu.ai.mit.edu>,
;; Sebastian Kremer <sk@thp.uni-koeln.de>
;; Keywords: unix
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Code:
(require 'dired)
;; find's -ls corresponds to these switches.
;; Note -b, at least GNU find quotes spaces etc. in filenames
;;;###autoload
(defvar find-ls-option (if (eq system-type 'berkeley-unix) '("-ls" . "-gilsb")
'("-exec ls -ld {} \\;" . "-ld"))
"*Description of the option to `find' to produce an `ls -l'-type listing.
This is a cons of two strings (FIND-OPTION . LS-SWITCHES). FIND-OPTION
gives the option (or options) to `find' that produce the desired output.
LS-SWITCHES is a list of `ls' switches to tell dired how to parse the output.")
;;;###autoload
(defvar find-grep-options (if (eq system-type 'berkeley-unix) "-s" "-q")
"*Option to grep to be as silent as possible.
On Berkeley systems, this is `-s'; on Posix, and with GNU grep, `-q' does it.
On other systems, the closest you can come is to use `-l'.")
(defvar find-args nil
"Last arguments given to `find' by \\[find-dired].")
;; History of find-args values entered in the minibuffer.
(defvar find-args-history nil)
;;;###autoload
(defun find-dired (dir args)
"Run `find' and go into dired-mode on a buffer of the output.
The command run (after changing into DIR) is
find . \\( ARGS \\) -ls"
(interactive (list (read-file-name "Run find in directory: " nil "" t)
(read-string "Run find (with args): " find-args
'(find-args-history . 1))))
;; Expand DIR ("" means default-directory), and make sure it has a
;; trailing slash.
(setq dir (file-name-as-directory (expand-file-name dir)))
;; Check that it's really a directory.
(or (file-directory-p dir)
(error "find-dired needs a directory: %s" dir))
(switch-to-buffer (get-buffer-create "*Find*"))
(widen)
(kill-all-local-variables)
(setq buffer-read-only nil)
(erase-buffer)
(setq default-directory dir
find-args args ; save for next interactive call
args (concat "find . "
(if (string= args "")
""
(concat "\\( " args " \\) "))
(car find-ls-option)))
;; The next statement will bomb in classic dired (no optional arg allowed)
(dired-mode dir (cdr find-ls-option))
;; This really should rerun the find command, but I don't
;; have time for that.
(use-local-map (append (make-sparse-keymap) (current-local-map)))
(define-key (current-local-map) "g" 'undefined)
;; Set subdir-alist so that Tree Dired will work:
(if (fboundp 'dired-simple-subdir-alist)
;; will work even with nested dired format (dired-nstd.el,v 1.15
;; and later)
(dired-simple-subdir-alist)
;; else we have an ancient tree dired (or classic dired, where
;; this does no harm)
(set (make-local-variable 'dired-subdir-alist)
(list (cons default-directory (point-min-marker)))))
(setq buffer-read-only nil)
;; Subdir headlerline must come first because the first marker in
;; subdir-alist points there.
(insert " " dir ":\n")
;; Make second line a ``find'' line in analogy to the ``total'' or
;; ``wildcard'' line.
(insert " " args "\n")
;; Start the find process.
(let ((proc (start-process-shell-command "find" (current-buffer) args)))
(set-process-filter proc (function find-dired-filter))
(set-process-sentinel proc (function find-dired-sentinel))
;; Initialize the process marker; it is used by the filter.
(move-marker (process-mark proc) 1 (current-buffer)))
(setq mode-line-process '(":%s")))
;;;###autoload
(defun find-name-dired (dir pattern)
"Search DIR recursively for files matching the globbing pattern PATTERN,
and run dired on those files.
PATTERN is a shell wildcard (not an Emacs regexp) and need not be quoted.
The command run (after changing into DIR) is
find . -name 'PATTERN' -ls"
(interactive
"DFind-name (directory): \nsFind-name (filename wildcard): ")
(find-dired dir (concat "-name '" pattern "'")))
;; This functionality suggested by
;; From: oblanc@watcgl.waterloo.edu (Olivier Blanc)
;; Subject: find-dired, lookfor-dired
;; Date: 10 May 91 17:50:00 GMT
;; Organization: University of Waterloo
(defalias 'lookfor-dired 'find-grep-dired)
;;;###autoload
(defun find-grep-dired (dir args)
"Find files in DIR containing a regexp ARG and start Dired on output.
The command run (after changing into DIR) is
find . -exec grep -s ARG {} \\\; -ls
Thus ARG can also contain additional grep options."
(interactive "DFind-grep (directory): \nsFind-grep (grep regexp): ")
;; find -exec doesn't allow shell i/o redirections in the command,
;; or we could use `grep -l >/dev/null'
(find-dired dir
(concat "! -type d -exec grep " find-grep-options " "
args " {} \\\; ")))
(defun find-dired-filter (proc string)
;; Filter for \\[find-dired] processes.
(let ((buf (process-buffer proc)))
(if (buffer-name buf) ; not killed?
(save-excursion
(set-buffer buf)
(save-restriction
(widen)
(save-excursion
(let ((buffer-read-only nil)
(end (point-max)))
(goto-char end)
(insert string)
(goto-char end)
(or (looking-at "^")
(forward-line 1))
(while (looking-at "^")
(insert " ")
(forward-line 1))
;; Convert ` ./FILE' to ` FILE'
;; This would lose if the current chunk of output
;; starts or ends within the ` ./', so back up a bit:
(goto-char (- end 3)) ; no error if < 0
(while (search-forward " ./" nil t)
(delete-region (point) (- (point) 2)))
;; Find all the complete lines in the unprocessed
;; output and process it to add text properties.
(goto-char end)
(if (search-backward "\n" (process-mark proc) t)
(progn
(dired-insert-set-properties (process-mark proc)
(1+ (point)))
(move-marker (process-mark proc) (1+ (point)))))
))))
;; The buffer has been killed.
(delete-process proc))))
(defun find-dired-sentinel (proc state)
;; Sentinel for \\[find-dired] processes.
(let ((buf (process-buffer proc)))
(if (buffer-name buf)
(save-excursion
(set-buffer buf)
(let ((buffer-read-only nil))
(save-excursion
(goto-char (point-max))
(insert "\nfind " state)
(forward-char -1) ;Back up before \n at end of STATE.
(insert " at " (substring (current-time-string) 0 19))
(forward-char 1)
(setq mode-line-process
(concat ":"
(symbol-name (process-status proc))))
;; Since the buffer and mode line will show that the
;; process is dead, we can delete it now. Otherwise it
;; will stay around until M-x list-processes.
(delete-process proc)
(force-mode-line-update)))
(message "find-dired %s finished." (current-buffer))))))
(provide 'find-dired)
;;; find-dired.el ends here
|
