Function: dired--insert-disk-space
dired--insert-disk-space is a byte-compiled function defined in
dired.el.gz.
Signature
(dired--insert-disk-space BEG FILE)
Source Code
;; Defined in /usr/src/emacs/lisp/dired.el.gz
(defun dired--insert-disk-space (beg file)
;; Try to insert the amount of free space.
(save-excursion
(goto-char beg)
;; First find the line to put it on.
(if (not (re-search-forward "^ *\\(total\\)" nil t))
beg
(if (or (not dired-free-space)
(eq dired-free-space 'first))
(delete-region (match-beginning 0) (line-beginning-position 2))
;; Replace "total" with "total used in directory" to
;; avoid confusion.
(replace-match "total used in directory" nil nil nil 1))
(if-let ((available (get-free-disk-space file)))
(cond
((eq dired-free-space 'separate)
(end-of-line)
(insert " available " available)
;; The separate free-space line is considered part of the
;; directory content, for the purposes of
;; 'dired-hide-details-mode'.
(beginning-of-line)
(point))
((eq dired-free-space 'first)
(goto-char beg)
(when (and (looking-at
(if (memq system-type '(windows-nt ms-dos))
" *[A-Za-z]:/"
" */"))
(progn
(end-of-line)
(eq (char-after (1- (point))) ?:)))
(put-text-property (1- (point)) (point)
'display
(concat ": (" available " available)")))
(forward-line 1)
(point))
(t
beg))
beg))))