This extension is not distributed with Mercurial.
Authors: Siddharth Agarwal, Wez Furlong
Current maintainer: Facebook
This extension integrates Mercurial with the file system monitor watchman, to speed up file status operations. The extension is known to work on Linux, and supposedly works on BSDs and OS X.
For installation and configuration instructions, see the README.
This is intended to be a correct replacement for the known-broken InotifyExtension.