#!/bin/sh
[ -n "$DEBUG" ] && set -x
set -eu

. /lib/gentoo/functions.sh

old=$(find /etc/s6-rc/ -maxdepth 1 -name '_[0-9]*' -print)

if [ "$UID" -ne 0 ]; then
	EERROR_QUIET=0 EINFO_LOG=0 eerror "need to be root"
	exit 1
fi

name=_$(date +%s)
ebegin "compile new db"
s6-rc-compile /etc/s6-rc/"$name" /etc/s6-rc/src
eend

# refresh active s6-rc tree
if s6-rc -a list >/dev/null 2>&1; then
	ebegin "update current db"
	s6-rc-update -v2 /etc/s6-rc/"$name"
	eend
fi

ebegin "swap current db"
# make atomic
ln -sf /etc/s6-rc/$name /tmp/compiled
mv -f /tmp/compiled /etc/s6-rc/
eend

ebegin "cleanup old db"
rm -r $old >/dev/null 2>&1
eend