#!/bin/bash

get_portage_var() {
	local var=$1 val
	[[ -n ${!var} ]] && return 0
	val=$( (
		source /etc/make.globals
		source /etc/make.conf
		source /etc/portage/make.conf
		echo ${!var}
	) 2>/dev/null )
	[[ -n ${val} ]] && export ${var}=${val} && return
	export ${var}=$(portageq envvar ${var})
	[[ -z ${!var} ]] && export ${var}=$2
}
get_portage_var PORTDIR /usr/portage
get_portage_var RSYNC_TIMEOUT 300
get_portage_var RSYNC_EXCLUDEFROM
get_portage_var SYNC
[[ -z ${SYNC} ]] && echo could not get SYNC var && exit 1

add() { RSYNC_OPTS="${RSYNC_OPTS} $@" ; }
RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress 
--force --whole-file --delete --delete-after --stats --timeout=${RSYNC_TIMEOUT}
--exclude=/distfiles --exclude=/local --exclude=/packages --progress"
[[ -n ${RSYNC_EXCLUDEFROM} ]] && add --exclude-from="${RSYNC_EXCLUDEFROM}"

METADATA_ONLY=0
while [[ -n $1 ]] ; do
	x=$1
	shift
	case ${x} in
	-v|--verbose) add --verbose ;;
	-q|--quiet)   add --quiet ;;
	--metadata)   METADATA_ONLY=1 ;;
	--)           break ;;
	*) echo unknown opt "${x}" ; exit 1 ;;
	esac
done

set -x
if [[ ${METADATA_ONLY} -eq 1 ]] ; then
	#echo /usr/bin/rsync ${RSYNC_OPTS} "$@" ${SYNC}/profiles ${PORTDIR}
	/usr/bin/rsync ${RSYNC_OPTS} "$@" ${SYNC}/metadata/ ${PORTDIR}/metadata/
else
	/usr/bin/rsync ${RSYNC_OPTS} "$@" ${SYNC} ${PORTDIR} || exit 1
	/usr/bin/rsync --progress -a ${PORTDIR}/metadata/cache/ /var/cache/edb/dep${PORTDIR}/
fi