etherpad-lite/bin/safeRun.sh

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#!/bin/sh
#This script ensures that ep-lite is automatically restarting after an error happens
#Handling Errors
# 0 silent
# 1 email
ERROR_HANDLING=0
# Your email address which should recieve the error messages
EMAIL_ADDRESS="no-reply@example.com"
# Sets the minimun amount of time betweens the sending of error emails.
# This ensures you not get spamed while a endless reboot loop
# It's the time in seconds
TIME_BETWEEN_EMAILS=600 # 10 minutes
# DON'T EDIT AFTER THIS LINE
LAST_EMAIL_SEND=0
LOG="$1"
#Move to the folder where ep-lite is installed
cd `dirname $0`
#Was this script started in the bin folder? if yes move out
if [ -d "../bin" ]; then
cd "../"
fi
#check if a logfile parameter is set
if [ -z "${LOG}" ]; then
echo "Set a logfile as the first parameter"
exit 1
fi
while [ 1 ]
do
#try to touch the file if it doesn't exist
if [ ! -f ${LOG} ]; then
touch ${LOG} || ( echo "Logfile '${LOG}' is not writeable" && exit 1 )
fi
#check if the file is writeable
if [ ! -w ${LOG} ]; then
echo "Logfile '${LOG}' is not writeable"
exit 1
fi
#start the application
shift
bin/run.sh $@ >>${LOG} 2>>${LOG}
#Send email
if [ $ERROR_HANDLING = 1 ]; then
TIME_NOW=$(date +%s)
TIME_SINCE_LAST_SEND=$(($TIME_NOW - $LAST_EMAIL_SEND))
if [ $TIME_SINCE_LAST_SEND -gt $TIME_BETWEEN_EMAILS ]; then
printf "Server was restared at: $(date)\nThe last 50 lines of the log before the error happens:\n $(tail -n 50 ${LOG})" | mail -s "Pad Server was restarted" $EMAIL_ADDRESS
LAST_EMAIL_SEND=$TIME_NOW
fi
fi
echo "RESTART!" >>${LOG}
#Sleep 10 seconds before restart
sleep 10
done