(dired-insert-directory): Insert the amount of

free space after the total size.
(dired-free-space-program, dired-free-space-args): New variables.

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index f1e4a8c..01e3a4e 100644 (file)
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+1999-10-14  Richard M. Stallman  <rms@caffeine.ai.mit.edu>
+
+       * dired.el (dired-insert-directory): Insert the amount of
+       free space after the total size.
+       (dired-free-space-program, dired-free-space-args): New variables.
+
 1999-10-14  Karl Heuer  <kwzh@gnu.org>
 
        * mail/rmail.el (rmail-pop-password-error): Add new pattern.

diff --git a/lisp/dired.el b/lisp/dired.el
index af5320f..52d945f 100644 (file)
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -152,6 +152,21 @@ The target is used in the prompt for file copy, rename etc."
   :type 'boolean
   :group 'dired)
 
+(defcustom dired-free-space-program "df"
+  "*Program to get the amount of free space on a file system.
+We assume the output has the format of `df'.
+The value of this variable must be just a command name or file name;
+if you want to specify options, use `dired-free-space-args'.
+
+A value of nil disables this feature."
+  :type '(choice (string :tag "Program") (const :tag "None" nil))
+  :group 'dired)
+
+(defcustom dired-free-space-args "-Pk"
+  "*Options to use when running `dired-free-space-program'."
+  :type 'string
+  :group 'dired)
+
 ;;; Hook variables
 
 (defvar dired-load-hook nil
@@ -658,7 +673,25 @@ If DIRNAME is already in a dired buffer, that buffer is used without refresh."
         (cdr dir-or-list))
       ;; Expand the file name here because it may have been abbreviated
       ;; in dired-noselect.
-      (insert-directory (expand-file-name dir-or-list) switches wildcard full-p))
+      (insert-directory (expand-file-name dir-or-list) switches wildcard full-p)
+      (when (and full-p dired-free-space-program)
+       (save-excursion
+         (goto-char (point-min))
+         (when (re-search-forward "total [0-9]+$" nil t)
+           (insert "  free ")
+           (let ((beg (point)))
+             (call-process dired-free-space-program nil t nil
+                           dired-free-space-args
+                           (expand-file-name dir-or-list))
+             (goto-char beg)
+             (forward-line 1)
+             (skip-chars-forward "^ \t")
+             (forward-word 2)
+             (skip-chars-forward " \t")
+             (delete-region beg (point))
+             (forward-word 1)
+             (delete-region (point)
+                            (progn (forward-line 1) (point))))))))
     ;; Quote certain characters, unless ls quoted them for us.
     (if (not (string-match "b" dired-actual-switches))
        (save-excursion