This extension is not distributed with Mercurial.
Author: Georg Brandl
This simple extension wraps the commit command to look if there is a change in the project's changelog. If there is, it is used as the default for the commit message.
Note that it is a quick hack -- I'm happy with any suggestion or bug report...
Configure your .hgrc to enable the extension by adding following lines:
[extensions] hgchangelog = /path/to/hgchangelog.py
Now set the name of your changelog file (replace "CHANGES" by the name of your changelog):
[changelog] filename = CHANGES
Note that it usually usually makes more sense to put this setting in the repository-specific .hg/hgrc file rather than the global ~/.hgrc file.