[Emacs-diffs] emacs etc/NEWS lisp/ChangeLog lisp/dired.el

[Juri Linkov]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Juri Linkov <jurta>     09/12/04 21:45:34

Modified files:
        etc            : NEWS 
        lisp           : ChangeLog dired.el 

Log message:
        (dired-auto-revert-buffer): New defcustom.
        (dired-internal-noselect): Use it.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/emacs/etc/NEWS?cvsroot=emacs&r1=1.2136&r2=1.2137
http://cvs.savannah.gnu.org/viewcvs/emacs/lisp/ChangeLog?cvsroot=emacs&r1=1.16820&r2=1.16821
http://cvs.savannah.gnu.org/viewcvs/emacs/lisp/dired.el?cvsroot=emacs&r1=1.446&r2=1.447

Patches:
Index: etc/NEWS
===================================================================
RCS file: /sources/emacs/emacs/etc/NEWS,v
retrieving revision 1.2136
retrieving revision 1.2137
diff -u -b -r1.2136 -r1.2137
--- etc/NEWS    4 Dec 2009 21:43:07 -0000       1.2136
+++ etc/NEWS    4 Dec 2009 21:45:29 -0000       1.2137
@@ -201,6 +201,11 @@
 exempt buffers that do correspond to files, customize the value of
 `desktop-files-not-to-save' instead.
 
+** Dired
+
+*** The new variable `dired-auto-revert-buffer' allows to revert
+dired buffers automatically on revisiting.
+
 ** DocView
 
 *** When `doc-view-continuous' is non-nil, scrolling a line

Index: lisp/ChangeLog
===================================================================
RCS file: /sources/emacs/emacs/lisp/ChangeLog,v
retrieving revision 1.16820
retrieving revision 1.16821
diff -u -b -r1.16820 -r1.16821
--- lisp/ChangeLog      4 Dec 2009 21:43:08 -0000       1.16820
+++ lisp/ChangeLog      4 Dec 2009 21:45:31 -0000       1.16821
@@ -1,5 +1,10 @@
 2009-12-04  Juri Linkov  <address@hidden>
 
+       * dired.el (dired-auto-revert-buffer): New defcustom.
+       (dired-internal-noselect): Use it.
+
+2009-12-04  Juri Linkov  <address@hidden>
+
        Change roles of modes and functions in image-mode.el (Bug#5062).
 
        * image-mode.el: Replace `image-mode-maybe' with `image-mode'

Index: lisp/dired.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/dired.el,v
retrieving revision 1.446
retrieving revision 1.447
diff -u -b -r1.446 -r1.447
--- lisp/dired.el       4 Dec 2009 05:00:44 -0000       1.446
+++ lisp/dired.el       4 Dec 2009 21:45:34 -0000       1.447
@@ -752,6 +752,24 @@
         buffer-read-only
         (dired-directory-changed-p dirname))))
 
+;;;###autoload
+(defcustom dired-auto-revert-buffer nil
+  "Automatically revert dired buffer on revisiting.
+If t, revisiting an existing dired buffer automatically reverts it.
+If its value is a function, call this function with the directory
+name as single argument and revert the buffer if it returns non-nil.
+Otherwise, a message offering to revert the changed dired buffer
+is displayed.
+Note that this is not the same as `auto-revert-mode' that
+periodically reverts at specified time intervals."
+  :type '(choice
+          (const :tag "Don't revert" nil)
+          (const :tag "Always revert visited dired buffer" t)
+          (const :tag "Revert changed dired buffer" dired-directory-changed-p)
+          (function :tag "Predicate function"))
+  :group 'dired
+  :version "23.2")
+
 (defun dired-internal-noselect (dir-or-list &optional switches mode)
   ;; If there is an existing dired buffer for DIRNAME, just leave
   ;; buffer as it is (don't even call dired-revert).
@@ -779,6 +797,14 @@
               (setq dired-directory dir-or-list)
               ;; this calls dired-revert
               (dired-sort-other switches))
+             ;; Always revert regardless of whether it has changed or not.
+             ((eq dired-auto-revert-buffer t)
+              (revert-buffer))
+             ;; Revert when predicate function returns non-nil.
+             ((functionp dired-auto-revert-buffer)
+              (when (funcall dired-auto-revert-buffer dirname)
+                (revert-buffer)
+                (message "Changed directory automatically updated")))
              ;; If directory has changed on disk, offer to revert.
              ((when (dired-directory-changed-p dirname)
                 (message "%s"