#!/bin/sh

set -e

case "${1}" in
	--quiet)
		QUIET="true"
		shift

		GIT_REPACK_OPTIONS="-q"
		GIT_GC_OPTIONS="--quiet"
		;;
esac

REPOSITORIES="${*}"

if [ -z "${REPOSITORIES}" ]
then
	if [ ! -e HEAD ]
	then
		REPOSITORIES="*.git"
	else
		REPOSITORIES="$(pwd)"
	fi
fi

for REPOSITORY in ${REPOSITORIES}
do
	[ "${QUIET}" ] || echo "================================================================================"
	[ "${QUIET}" ] || echo "${REPOSITORY}"
	[ "${QUIET}" ] || echo "================================================================================"

	cd "${REPOSITORY}"
	git repack "${GIT_REPACK_OPTIONS}" -a -b -d -f -F
	git gc "${GIT_GC_OPTIONS}" --aggressive --prune
	cd "${OLDPWD}"

	if [ "$(id -u)" -eq "0" ]
	then
		USER_ID="$(stat -c %u "${REPOSITORY}")"
		GROUP_ID="$(stat -c %g "${REPOSITORY}")"

		chown "${USER_ID}":"${GROUP_ID}" "${REPOSITORY}" -R
	fi
done