vapier 15/07/23 02:57:41 Added: run-crons-0.3.6 Log: Rewrite run-crons in POSIX shell #530416 by Alexander Hof. (Portage version: 2.2.20/cvs/Linux x86_64, signed Manifest commit with key D2E96200)
Revision Changes Path 1.1 sys-process/cronbase/files/run-crons-0.3.6 file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.6?rev=1.1&view=markup plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.6?rev=1.1&content-type=text/plain Index: run-crons-0.3.6 =================================================================== #!/bin/sh # # $Header: /var/cvsroot/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.6,v 1.1 2015/07/23 02:57:41 vapier Exp $ # # 12 Oct 2008; Thilo Bangert <[email protected]> run-crons: # ignore emacs backup files (bug #237200) # include logging patch (bug #140869) # # 08 Mar 2005; Aaron Walker <[email protected]> run-crons: # Ignore the error messages from find caused by race conditions, since # we could care less about the error as long as the file has been removed. # See bug 8506. # # 06 May 2004; Aron Griffis <[email protected]> run-crons: # Make the locking actually work. The old code was racy. # Thanks to Mathias Gumz in bug 45155 for some cleanups. # # 23 Jun 2002; Jon Nelson <[email protected]> run-crons: # fixed a race condition, where cron jobs and run-crons wanted to # delete touch files # # 20 Apr 2002; Thilo Bangert <[email protected]> run-crons: # moved lastrun directory to /var/spool/cron/lastrun # # Author: Achim Gottinger <[email protected]> # # Mostly copied from SuSE # # this script looks into /etc/cron.[hourly|daily|weekly|monthly] # for scripts to be executed. The info about last run is stored in # /var/spool/cron/lastrun LOCKDIR=/var/spool/cron/lastrun LOCKFILE=${LOCKDIR}/lock # Usage: log <level> <args to logger> # Log a message via syslog. log() { local level="$1" shift logger -i -p "cron.${level}" -t run-crons "$@" } mkdir -p ${LOCKDIR} # Make sure we're not running multiple instances at once. # Try twice to lock, otherwise give up. i=0 while [ $(( i += 1 )) -le 2 ] ; do ln -sn $$ ${LOCKFILE} 2>/dev/null && break # lock failed, check for a running process. # handle both old- and new-style locking. cronpid=$(readlink ${LOCKFILE} 2>/dev/null) || cronpid=$(cat ${LOCKFILE} 2>/dev/null) || continue # lockfile disappeared? try again # better than kill -0 because we can verify that it's really # another run-crons process cmdline1=$(cat /proc/${cronpid}/cmdline 2>/dev/null) || : cmdline2=$(cat /proc/$$/cmdline) if [ "${cmdline1}" = "${cmdline2}" ] ; then # whoa, another process is really running exit 0 else rm -f ${LOCKFILE} fi done # Check to make sure locking was successful if [ ! -L "${LOCKFILE}" ] ; then echo "Can't create or read existing ${LOCKFILE}, giving up" exit 1 fi # Set a trap to remove the lockfile when we're finished trap "rm -f ${LOCKFILE}" EXIT HUP INT QUIT TERM EXIT_STATUS=0 for BASE in hourly daily weekly monthly ; do CRONDIR=/etc/cron.${BASE} test -d $CRONDIR || continue if [ -e ${LOCKDIR}/cron.$BASE ] ; then case $BASE in hourly) #>= 1 hour, 5 min -=> +65 min TIME="-cmin +65" ;; daily) #>= 1 day, 5 min -=> +1445 min TIME="-cmin +1445" ;; weekly) #>= 1 week, 5 min -=> +10085 min TIME="-cmin +10085" ;; monthly) #>= 31 days, 5 min -=> +44645 min TIME="-cmin +44645" ;; esac find ${LOCKDIR} -name cron.$BASE $TIME -exec rm {} \; 2>/dev/null || : fi # if there is no touch file, make one then run the scripts if [ ! -e ${LOCKDIR}/cron.$BASE ] ; then touch ${LOCKDIR}/cron.$BASE set +e for SCRIPT in $CRONDIR/* ; do if [ -x "${SCRIPT}" ] && [ ! -d "${SCRIPT}" ] ; then # Filter out files people do not expect to be executed. case ${SCRIPT} in .*|*~) continue ;; esac log info "($(whoami)) CMD (${SCRIPT})" $SCRIPT ret=$? if [ ${ret} -ne 0 ] ; then log err "CMD (${SCRIPT}) failed with exit status ${ret}" EXIT_STATUS=1 fi fi done fi done # Clean out bogus cron.$BASE files with future times touch ${LOCKDIR} find ${LOCKDIR} -newer ${LOCKDIR} -exec /bin/rm -f {} \; 2>/dev/null || : exit ${EXIT_STATUS}
