#!/bin/sh

while read oldrev newrev refname ; do
	if [ "$refname" == "refs/heads/gitconfig" ] ; then
		config_hash=$(git ls-tree $newrev | grep config | gawk '{print $3}')
		if [[ "$config_hash" != "" ]] ; then
			git cat-file blob "$config_hash" | while read line ; do
				key="${line%=*}"
				value="${line#*=}"
				git config "${key}" "${value}"
			done
		fi
	fi
done