History of git irc bot post-commit script
__post-receive__ or __post-commit__ depending on how you want to setup your notifications:
{code source=bash}#!/bin/sh
echo "---- git commit ----" > /path/to/iihome/irc/#foobar/in
git log -1 > /path/to/iihome/irc/irc.example.com/#foobar/in{/code}