#!/bin/sh

while read oldrev newrev refname ; do
	if [ "$refname" == "refs/heads/gitconfig" ] ; then
		config_hash=$(git ls-tree $newrev | grep config | grep -oP '\w{40}')
		if [[ "$config_hash" != "" ]] ; then
			git cat-file blob "$config_hash" | while read line ; do
				key="${line%=*}"
				value="${line#*=}"
				git config "${key}" "${value}"
			done
		fi

		hooks_hash=$(git ls-tree $newrev | grep hooks | grep -oP '\w{40}')
		if [[ "$hooks_hash" != "" ]] ; then
			git ls-tree "$hooks_hash" | while read mode type file_hash file_name ; do
				echo "Installing $file_name"
				git cat-file blob "$file_hash" > "hooks/$file_name"
			done
		fi
	fi
done