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#!/bin/bash
. /etc/crons.conf.d/backup.conf
tar=tar
if type gtar 2>/dev/null >/dev/null; then
tar=gtar
fi
export LANG=en_US
export XZ=${XZ_COMP}
now=`date +%Y-%m-%d`
tmp_file=$(mktemp)
trap "rm -f ${tmp_file}" EXIT
DESTDIR="${DESTDIR}/portage"
if mkdir ${DESTDIR} 2>/dev/null; then
chown ${USER} ${DESTDIR}
chmod ${MOD} ${DESTDIR}
chmod u+w,+x ${DESTDIR}
fi
if mkdir ${DESTDIR}/{etc,world,sets} 2>/dev/null; then
chown ${USER} ${DESTDIR}/{etc,world,sets}
chmod ${MOD} ${DESTDIR}/{etc,world,sets}
chmod u+w,+x ${DESTDIR}/{etc,world,sets}
fi
# create backup
$tar -cJpf "${DESTDIR}/etc/${now}.tar.xz" -C /etc portage
cat /var/lib/portage/world | gzip > "${DESTDIR}/world/${now}.gz"
cat /var/lib/portage/world_sets | gzip > "${DESTDIR}/sets/${now}.gz"
# fix permissions
chown ${USER} "${DESTDIR}/etc/${now}.tar.xz" "${DESTDIR}/world/${now}.gz" \
"${DESTDIR}/sets/${now}.gz"
chmod ${MOD} "${DESTDIR}/etc/${now}.tar.xz" "${DESTDIR}/world/${now}.gz" \
"${DESTDIR}/sets/${now}.gz"
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