| 1 |
vapier 15/07/23 02:57:41 |
| 2 |
|
| 3 |
Added: run-crons-0.3.6 |
| 4 |
Log: |
| 5 |
Rewrite run-crons in POSIX shell #530416 by Alexander Hof. |
| 6 |
|
| 7 |
(Portage version: 2.2.20/cvs/Linux x86_64, signed Manifest commit with key D2E96200) |
| 8 |
|
| 9 |
Revision Changes Path |
| 10 |
1.1 sys-process/cronbase/files/run-crons-0.3.6 |
| 11 |
|
| 12 |
file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.6?rev=1.1&view=markup |
| 13 |
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 |
| 14 |
|
| 15 |
Index: run-crons-0.3.6 |
| 16 |
=================================================================== |
| 17 |
#!/bin/sh |
| 18 |
# |
| 19 |
# $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 $ |
| 20 |
# |
| 21 |
# 12 Oct 2008; Thilo Bangert <bangert@g.o> run-crons: |
| 22 |
# ignore emacs backup files (bug #237200) |
| 23 |
# include logging patch (bug #140869) |
| 24 |
# |
| 25 |
# 08 Mar 2005; Aaron Walker <ka0ttic@g.o> run-crons: |
| 26 |
# Ignore the error messages from find caused by race conditions, since |
| 27 |
# we could care less about the error as long as the file has been removed. |
| 28 |
# See bug 8506. |
| 29 |
# |
| 30 |
# 06 May 2004; Aron Griffis <agriffis@g.o> run-crons: |
| 31 |
# Make the locking actually work. The old code was racy. |
| 32 |
# Thanks to Mathias Gumz in bug 45155 for some cleanups. |
| 33 |
# |
| 34 |
# 23 Jun 2002; Jon Nelson <jnelson@g.o> run-crons: |
| 35 |
# fixed a race condition, where cron jobs and run-crons wanted to |
| 36 |
# delete touch files |
| 37 |
# |
| 38 |
# 20 Apr 2002; Thilo Bangert <bangert@g.o> run-crons: |
| 39 |
# moved lastrun directory to /var/spool/cron/lastrun |
| 40 |
# |
| 41 |
# Author: Achim Gottinger <achim@g.o> |
| 42 |
# |
| 43 |
# Mostly copied from SuSE |
| 44 |
# |
| 45 |
# this script looks into /etc/cron.[hourly|daily|weekly|monthly] |
| 46 |
# for scripts to be executed. The info about last run is stored in |
| 47 |
# /var/spool/cron/lastrun |
| 48 |
|
| 49 |
LOCKDIR=/var/spool/cron/lastrun |
| 50 |
LOCKFILE=${LOCKDIR}/lock |
| 51 |
|
| 52 |
# Usage: log <level> <args to logger> |
| 53 |
# Log a message via syslog. |
| 54 |
log() { |
| 55 |
local level="$1" |
| 56 |
shift |
| 57 |
logger -i -p "cron.${level}" -t run-crons "$@" |
| 58 |
} |
| 59 |
|
| 60 |
mkdir -p ${LOCKDIR} |
| 61 |
|
| 62 |
# Make sure we're not running multiple instances at once. |
| 63 |
# Try twice to lock, otherwise give up. |
| 64 |
i=0 |
| 65 |
while [ $(( i += 1 )) -le 2 ] ; do |
| 66 |
ln -sn $$ ${LOCKFILE} 2>/dev/null && break |
| 67 |
|
| 68 |
# lock failed, check for a running process. |
| 69 |
# handle both old- and new-style locking. |
| 70 |
cronpid=$(readlink ${LOCKFILE} 2>/dev/null) || |
| 71 |
cronpid=$(cat ${LOCKFILE} 2>/dev/null) || |
| 72 |
continue # lockfile disappeared? try again |
| 73 |
|
| 74 |
# better than kill -0 because we can verify that it's really |
| 75 |
# another run-crons process |
| 76 |
cmdline1=$(cat /proc/${cronpid}/cmdline 2>/dev/null) || : |
| 77 |
cmdline2=$(cat /proc/$$/cmdline) |
| 78 |
if [ "${cmdline1}" = "${cmdline2}" ] ; then |
| 79 |
# whoa, another process is really running |
| 80 |
exit 0 |
| 81 |
else |
| 82 |
rm -f ${LOCKFILE} |
| 83 |
fi |
| 84 |
done |
| 85 |
|
| 86 |
# Check to make sure locking was successful |
| 87 |
if [ ! -L "${LOCKFILE}" ] ; then |
| 88 |
echo "Can't create or read existing ${LOCKFILE}, giving up" |
| 89 |
exit 1 |
| 90 |
fi |
| 91 |
|
| 92 |
# Set a trap to remove the lockfile when we're finished |
| 93 |
trap "rm -f ${LOCKFILE}" EXIT HUP INT QUIT TERM |
| 94 |
|
| 95 |
|
| 96 |
EXIT_STATUS=0 |
| 97 |
for BASE in hourly daily weekly monthly ; do |
| 98 |
CRONDIR=/etc/cron.${BASE} |
| 99 |
|
| 100 |
test -d $CRONDIR || continue |
| 101 |
|
| 102 |
if [ -e ${LOCKDIR}/cron.$BASE ] ; then |
| 103 |
case $BASE in |
| 104 |
hourly) |
| 105 |
#>= 1 hour, 5 min -=> +65 min |
| 106 |
TIME="-cmin +65" ;; |
| 107 |
daily) |
| 108 |
#>= 1 day, 5 min -=> +1445 min |
| 109 |
TIME="-cmin +1445" ;; |
| 110 |
weekly) |
| 111 |
#>= 1 week, 5 min -=> +10085 min |
| 112 |
TIME="-cmin +10085" ;; |
| 113 |
monthly) |
| 114 |
#>= 31 days, 5 min -=> +44645 min |
| 115 |
TIME="-cmin +44645" ;; |
| 116 |
esac |
| 117 |
|
| 118 |
find ${LOCKDIR} -name cron.$BASE $TIME -exec rm {} \; 2>/dev/null || : |
| 119 |
fi |
| 120 |
|
| 121 |
# if there is no touch file, make one then run the scripts |
| 122 |
if [ ! -e ${LOCKDIR}/cron.$BASE ] ; then |
| 123 |
touch ${LOCKDIR}/cron.$BASE |
| 124 |
|
| 125 |
set +e |
| 126 |
for SCRIPT in $CRONDIR/* ; do |
| 127 |
if [ -x "${SCRIPT}" ] && [ ! -d "${SCRIPT}" ] ; then |
| 128 |
# Filter out files people do not expect to be executed. |
| 129 |
case ${SCRIPT} in |
| 130 |
.*|*~) continue ;; |
| 131 |
esac |
| 132 |
|
| 133 |
log info "($(whoami)) CMD (${SCRIPT})" |
| 134 |
$SCRIPT |
| 135 |
ret=$? |
| 136 |
if [ ${ret} -ne 0 ] ; then |
| 137 |
log err "CMD (${SCRIPT}) failed with exit status ${ret}" |
| 138 |
EXIT_STATUS=1 |
| 139 |
fi |
| 140 |
fi |
| 141 |
done |
| 142 |
fi |
| 143 |
done |
| 144 |
|
| 145 |
# Clean out bogus cron.$BASE files with future times |
| 146 |
touch ${LOCKDIR} |
| 147 |
find ${LOCKDIR} -newer ${LOCKDIR} -exec /bin/rm -f {} \; 2>/dev/null || : |
| 148 |
|
| 149 |
exit ${EXIT_STATUS} |
Archives