#!/bin/sh
#
# Remove old incremtal inc of all jails
# Usage: rm
#

LIBDIR="$(dirname $0)" && . "${LIBDIR}/config"

empty="/tmp/bkctld-${$}-$(date +%N))"
mkdir "${empty}"
pidfile="/var/run/bkctld-rm.pid"
if [ -f "${pidfile}" ]; then
    pid=$(cat "${pidfile}")
    ps -u "${pid}" >/dev/null
    if [ "${?}" -eq 0 ]; then
        kill -9 "${pid}"
        warning "${0} rm always run (PID ${pid}), killed by ${$} !"
    fi
    rm "${pidfile}"
    fi
echo "${$}" > "${pidfile}"
for jail in $("${LIBDIR}/bkctld-list"); do
    incs=$(ls "${INCDIR}/${jail}")
    if [ -f "${CONFDIR}/${jail}" ]; then
        keepfile="${CONFDIR}/.keep-${jail}"
        while read j; do
            date=$( echo "${j}" | cut -d. -f1 )
            before=$( echo "${j}" | cut -d. -f2 )
            date -d "$(date "${date}") ${before}" "+%Y-%m-%d"
        done < "${CONFDIR}/${jail}" > "${keepfile}"
        for j in $(echo "${incs}" | grep -v -f "${keepfile}"); do
            start=$(date +"%H:%M:%S")
            inc_inode=$(stat --format=%i "${INCDIR}/${jail}/${j}")
            if [ "${inc_inode}" -eq 256 ]; then
                /bin/btrfs subvolume delete "${INCDIR}/${jail}/${j}" | debug
            else
                cd "${INCDIR}/${jail}"
                rsync -a --delete "${empty}/" "${j}/"
                rmdir "${j}"
            fi
            end=$(date +"%H:%M:%S")
            notice "${jail} : deleted ${j} inc [${start}/${end}]"
        done
    fi
done
rmdir "${empty}"
rm "${pidfile}"