wmud/autorun
2012-03-03 21:35:30 +01:00

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#!/bin/sh
#
# CircleMUD autorun script
# Contributions by Fred Merkel, Stuart Lamble, and Jeremy Elson
# New log rotating code contributed by Peter Ajamian
# Copyright (c) 1996 The Trustees of The Johns Hopkins University
# All Rights Reserved
# See license.doc for more information
#
#############################################################################
#
# This script can be used to run CircleMUD over and over again (i.e., have it
# automatically reboot if it crashes). It will run the game, and copy some
# of the more useful information from the system logs to the 'log' directory
# for safe keeping.
#
# You can control the operation of this script by creating and deleting files
# in Circle's root directory, either manually or by using the 'shutdown'
# command from within the MUD.
#
# Creating a file called .fastboot makes the script wait only 5 seconds
# between reboot attempts instead of the usual 60. If you want a quick
# reboot, use the "shutdown reboot" command from within the MUD.
#
# Creating a file called .killscript makes the script terminate (i.e., stop
# rebooting the MUD). If you want to shut down the MUD and make it stay
# shut down, use the "shutdown die" command from within the MUD.
#
# Finally, if a file called pause exists, the script will not reboot the MUD
# again until pause is removed. This is useful if you want to turn the MUD
# off for a couple of minutes and then bring it back up without killing the
# script. Type "shutdown pause" from within the MUD to activate this feature.
#
# The port on which to run the MUD
PORT=4000
# Default flags to pass to the MUD server (see admin.txt for a description
# of all flags).
FLAGS='-q'
# Number of syslog.# files to keep in the log directory.
BACKLOGS=6
# Each record in the following variable contains information for one log file.
# The fields are filename:maxlines:pattern where filename is the name of the
# log file, maxlines is the maximum number of lines in the file (0 for
# unlimited) and pattern is a pattern which must be matched for a line to get
# copied from syslog to this log file.
LOGFILES='
delete:0:self-delete
dts:0:death trap
rip:0:killed
restarts:0:Running
levels:0:advanced
rentgone:0:equipment lost
usage:0:usage
newplayers:0:new player
errors:0:SYSERR
godcmds:0:(GC)
badpws:0:Bad PW
'
# The following is the number of lines in syslog.CRASH. Set to 0 to disable
# crashlogs.
LEN_CRASHLOG=30
#############################################################################
#############
# Functions #
#############
# The proc_syslog function will grep the logs for the various different info
# and rotate the logs in the log directory.
proc_syslog () {
# Return if there's no syslog
if ! [ -s syslog ]; then return; fi
# Create the crashlog
if [ -n "$LEN_CRASHLOG" -a "$LEN_CRASHLOG" -gt 0 ]; then
tail -n $LEN_CRASHLOG syslog > syslog.CRASH
fi
# Append to the specialty logfiles and truncate to maximum length if
# applicable
OLD_IFS=$IFS
IFS='
'
for rec in $LOGFILES; do
name=log/`echo $rec|cut -f 1 -d:`
len=`echo $rec|cut -f 2 -d:`
pattern=`echo $rec|cut -f 3- -d:`
fgrep $pattern syslog >> $name
if [ $len -gt 0 ]; then
temp=`mktemp $name.XXXXXX`
tail -n $len $name > $temp
mv -f $temp $name
fi
done
IFS=$OLD_IFS
# Find the # to set the new log file to.
if [ -s log/syslog.$BACKLOGS ]; then
declare -i newlog=$BACKLOGS+1
else
declare -i newlog=1
while [ -s log/syslog.$newlog ]; do newlog=$newlog+1; done
fi
# Rotate the logs.
declare -i y=2
while [ $y -lt $newlog ]; do
declare -i x=$y-1
mv -f log/syslog.$y log/syslog.$x
y=$y+1
done
mv -f syslog log/syslog.$newlog
}
########
# Main #
########
# Check to see if there is a syslog which would indicate that autorun
# was improperly killed (ie maybe the system was rebooted or ?).
if [ -s syslog ]; then
echo Improper shutdown of autorun detected, rotating syslogs before startup. >> syslog
proc_syslog
fi
# The main loop
while ( : ) do
DATE=`date`
echo "autorun starting game $DATE" > syslog
echo "running bin/circle $FLAGS $PORT" >> syslog
# On Cygwin, you may need to precede this next line with './' for
# './bin/circle' as the command.
bin/circle $FLAGS $PORT >> syslog 2>&1
if [ -r .killscript ]; then
DATE=`date`;
echo "autoscript killed $DATE" >> syslog
rm .killscript
proc_syslog
exit
fi
if [ ! -r .fastboot ]; then
sleep 60
else
rm .fastboot
fi
while [ -r pause ]; do
sleep 60
done
proc_syslog
sleep 5
done