Variable: vc-ignore-dir-regexp
vc-ignore-dir-regexp is a customizable variable defined in
vc-hooks.el.gz.
Value
"\\`\\(?:[\\/][\\/][^\\/]+[\\/]\\|/\\(?:net\\|afs\\|\\.\\.\\.\\)/\\)\\'"
Documentation
Regexp matching directory names that are not under VC's control.
The default regexp prevents fruitless and time-consuming attempts to determine the VC status in directories in which filenames are interpreted as hostnames.
Source Code
;; Defined in /usr/src/emacs/lisp/vc/vc-hooks.el.gz
;; Customization Variables (the rest is in vc.el)
(defcustom vc-ignore-dir-regexp
;; Stop SMB, automounter, AFS, and DFS host lookups.
locate-dominating-stop-dir-regexp
"Regexp matching directory names that are not under VC's control.
The default regexp prevents fruitless and time-consuming attempts
to determine the VC status in directories in which filenames are
interpreted as hostnames."
:type 'regexp
:group 'vc)