source: scripts/usr/local/lib/7dtd/monitor-log.sh @ 20

#!/bin/bash
# Version 5

. /usr/local/lib/7dtd/common.sh
checkRootLoadConf

if [ $(isValidInstance $1) -eq 0 ]; then
        echo "No instance given or not a valid instance!"
        return
fi

INSTANCE=$1
LOG=$(getInstancePath $INSTANCE)/output.log

timestamp() {
        date '+%Y.%m.%d %H:%M:%S'
}

handleConnect() {
        tel=$(telnetCommand $INSTANCE lp)
        playerline=$(echo "$tel" | tr -d '\r' | grep "id=$2,")
        nickname=$(echo "$playerline" | sed -r 's/^.* id=[0-9]*, ([^,]*), pos=.*$/\1/')
        steamid=$(echo "$playerline" | sed -r 's/^.*, health=[0-9]*, ([0-9]*)$/\1/')
        
        if [ -z "$steamid" ]; then
                return
        fi

        logPlayerConnect $INSTANCE $2 $steamid $nickname

        for H in $(getHooksFor playerConnect); do
                $H $INSTANCE $1 $2 $nickname $steamid
        done
}

handleDisconnect() {
        logPlayerDisconnect $INSTANCE $2

        for H in $(getHooksFor playerDisconnect); do
                $H $INSTANCE $1 $2 $NICKNAME $STEAMID
        done
}

echo >> $LOG
echo >> $LOG
echo "Starting instance $INSTANCE at $(timestamp)" >> $LOG
echo >> $LOG

sleep 5

NOBUF="stdbuf -e0 -o0"

$NOBUF tail -n 5000 -F $SDTD_BASE/engine/7DaysToDie_Data/output_log.txt |
$NOBUF tr '\\' '/' |
$NOBUF tr -d '\r' |
$NOBUF grep -v "^(Filename: " |
while read line ; do
        if [ -n "$line" ]; then
                echo "$(timestamp): $line" >> $LOG
                if [ -n "$(echo "$line" | grep '^RequestToSpawnPlayer:')" ]; then
                        read entityId playerId playerName unknown <<< "$(echo $line | sed -r 's/^RequestToSpawnPlayer: (.*), (.*), (.*), (.*)$/\1 \2 \3 \4/')"
                        sleep 1
                        handleConnect $playerId $entityId $playerName
                        unset entityId playerId playerName unknown
                fi
                if [ -n "$(echo "$line" | grep '^Removing player with id ')" ]; then
                        read playerId entityId <<< "$(echo $line | sed -r 's/^Removing player with id clientId=(.*), entityId=(.*)$/\1 \2/')"
                        handleDisconnect $playerId $entityId
                        unset playerId entityId
                fi
        fi
done