#!/bin/bash

if [ -z "$1" ]
then
	printf 'Repository  : '
	read
	set "$REPLY"
fi

if [ ! -f "$1/HEAD" ]
then
	echo 'Not a repository!'
	exit 1
fi

if [ ! -w "$1/HEAD" ]
then
	echo 'Read-only repository!'
	exit 2
fi

if cd "$1"
then
	git config set --file ./config receive.denyNonFastForwards true
fi