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#!/bin/bash -l
#shellcheck disable=SC2009,SC2030,SC2031
#SC2009: consider using pgrep instead of grepping ps output
#SC2030: modification of FD is local (to subshell)
#SC2031: FD was modified in subshell
# invocation script meant to be launched from cron
LOGFILE="/var/tmp/rsync0.log"
if [[ -f /tmp/rsync-master-busy ]] ; then
laststart=$(date -r /tmp/rsync-master-busy +%s)
now=$(date +%s)
# allow one run to be skipped quietly
if [[ $((laststart + (40 * 60))) -lt ${now} ]] ; then
echo "another rsync-master generation process is still busy"
type pstree > /dev/null && pstree -A -l -p "$(head -n1 ${LOGFILE})"
ps -ef | grep '[r]efresh-mirror'
tail ${LOGFILE}
else
exit 0
fi
# if the log reports done, kill it as it seems that for some reason
# it hangs after doing this
if [[ $(tail -n1 ${LOGFILE}) == *"rsync done" ]] ; then
pid=$(head -n1 ${LOGFILE})
if [[ ${pid} -gt 0 ]] ; then
echo "Killing stray/stuck processes"
pstree -A -l -c -p "${pid}" | grep -o '[0-9]\+' | xargs kill
rm /tmp/rsync-master-busy
fi
fi
else
mv "${LOGFILE}" "${LOGFILE%.log}"-prev.log
cd "$(readlink -f "${BASH_SOURCE[0]%/*}")" || exit 1
touch /tmp/rsync-master-busy
echo $$ > "${LOGFILE}"
echo "starting generation $(date)" >> "${LOGFILE}"
genandpush() {
./update-rsync-master.sh \
&& ./push-rsync1.sh
# && pushd /export/gentoo/statistics/stats \
# && ./gen-timing-rsync0-graph.sh \
# && popd > /dev/null
}
# get a free filedescriptor in FD
exec {FD}>/tmp/rsync-master-busy
( ( (genandpush | tee -a "${LOGFILE}") {FD}>&1 1>&2 2>&${FD} \
| tee -a "${LOGFILE}") 2> /dev/null)
echo "generation done $(date)" >> ${LOGFILE}
exec {FD}>&-
rm -f /tmp/rsync-master-busy
fi
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