Function: vc-diff

vc-diff is an autoloaded, interactive and byte-compiled function defined in vc.el.gz.

Signature

(vc-diff &optional HISTORIC NOT-URGENT FILESET)

Documentation

Display diffs between file revisions.

Normally this compares the currently selected fileset with their working revisions. With a prefix argument HISTORIC, it reads two revision designators specifying which revisions to compare.

The optional argument NOT-URGENT non-nil means it is ok to say no to saving the buffer. The optional argument FILESET can override the deduced fileset.

View in manual

Probably introduced at or before Emacs version 20.3.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/vc/vc.el.gz
;;;###autoload
(defun vc-diff (&optional historic not-urgent fileset)
  "Display diffs between file revisions.
Normally this compares the currently selected fileset with their
working revisions.  With a prefix argument HISTORIC, it reads two revision
designators specifying which revisions to compare.

The optional argument NOT-URGENT non-nil means it is ok to say no to
saving the buffer.  The optional argument FILESET can override the
deduced fileset."
  (interactive (list current-prefix-arg t))
  (if historic
      (call-interactively 'vc-version-diff)
    (vc-maybe-buffer-sync not-urgent)
    (let ((fileset (or fileset (vc-deduce-fileset t))))
      (vc-buffer-sync-fileset fileset not-urgent)
      (vc-diff-internal t fileset nil nil
			(called-interactively-p 'interactive)))))