mirror of
https://github.com/ceph/ceph
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54 lines
1.3 KiB
Bash
Executable File
54 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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# /nightlies/cron_wrapper.sh
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# check for no argument case and stop
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if [ -z $1 ]; then
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echo "need argument"
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exit 1
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fi
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# set permanent $LOG file var
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LOG="/var/log/crontab-nightlies-log/crontab.log"
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# set $LOG_LOCKED_ERR in case locking failed
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LOG_LOCK_ERR="/var/log/crontab-nightlies-log/crontab_lock_problem.$$"
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# temp files to store stdout and stderr
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# named with the PID of this script in their name so they'll be unique
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STDERR="/var/tmp/stderr.$$"
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STDOUT="/var/tmp/stdout.$$"
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# $STDOUT and $STDERR are removed when the script exits for any reason
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trap "rm -f $STDOUT $STDERR" 0
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# run a command from this script's argument
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# redirect stdout to $STDOUT file and redirect stderr to $STDERR file
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DATE=$(date)
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echo -n "$DATE: " >> $STDOUT
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echo "Running command: $@" >> $STDOUT
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"$@" > $STDOUT 2> $STDERR
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# get return code from the command run
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code=$?
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if [ $code != 0 ] ; then
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# echoing to stdout/stderr makes cron send email
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echo "stdout:"
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cat $STDOUT
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echo "stderr:"
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cat $STDERR
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else
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# normal exit: just log stdout
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# lock $LOG with file descriptor 200
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exec 200>>$LOG
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# if $LOG is locked by other process - wait for 20 sec
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flock -w 20 200 || LOG=$LOG_LOCK_ERR
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echo "stdout:" >> $LOG
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cat $STDOUT >> $LOG
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echo "stderr:" >> $LOG
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cat $STDERR >> $LOG
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# unlock
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flock -u 200
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fi
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