minecraft.sh

#!/bin/bash
# original author : Relliktsohg
# Huge thanks to Maine for his incremental backup
# THanks to endofzero for his improved update routine

#   Configuration

MC_PATH=/home/minecraft
SERVERMOD=0
RUNECRAFT=0
SCREEN_NAME="minecraft"
MEMALOC=512
DISPLAY_ON_LAUNCH=1

WORLD_NAME="world"

BKUP_PATH=$MC_PATH/backup
BKUP_DAYS_INCR=2
BKUP_DAYS_FULL=5
BACKUP_FULL_LINK=${BKUP_PATH}/${WORLD_NAME}_full.tgz
BACKUP_INCR_LINK=${BKUP_PATH}/${WORLD_NAME}_incr.tgz

CARTO_PATH=$MC_PATH/carto
MAPS_PATH=/var/www/minecraftMaps
LOG_TDIR=/var/www/minecraftLogs
LOGS_DAYS=7

#   End of configuration

if [ $SERVERMOD -eq 1 ]
then
        if [ -e $MC_PATH/logs/*.log.lck ]
        then
                ONLINE=1
        else
                ONLINE=0
        fi
else
        if [ -e $MC_PATH/server.log.lck ]
        then
                #       ps -e | grep java | wc -l
                ONLINE=1
        else
                ONLINE=0
        fi
fi

display() {
    screen -R $SCREEN_NAME
}

server_launch() {
    echo "Launching minecraft server..."
    if [ $SERVERMOD -eq 1 ]
    then
        cd $MC_PATH; screen -m -d -S $SCREEN_NAME java -Xmx${MEMALOC}M -Xms${MEMALOC}M -Djava.net.preferIPv4Stack=true -jar Minecraft_Mod.jar nogui; sleep 1
    else
        cd $MC_PATH; screen -m -d -S $SCREEN_NAME java -Xmx${MEMALOC}M -Xms${MEMALOC}M -Djava.net.preferIPv4Stack=true -jar minecraft_server.jar nogui; sleep 1
    fi
}

server_stop() {
    echo "Stopping minecraft server..."
    screen -S $SCREEN_NAME -p 0 -X stuff "`printf "stop.\r"`"; sleep 5
}

if [ $# -gt 0 ]
then
    case $1 in

    #################################################################
    "status")
        if [ $ONLINE -eq 1 ]
        then
            echo "Minecraft server seems ONLINE."
        else
            echo "Minecraft server seems OFFLINE."
        fi;;

    #################################################################
    "start")
        if [ $ONLINE -eq 1 ]
        then
            echo "Server seems to be already running !"
            case $2 in
            "force")
                kill `ps -e | grep java | cut -d " " -f 1`
                rm -fr $MC_PATH/*.log.lck 2> /dev/null/;;
            esac
        else
            server_launch
            if [ $DISPLAY_ON_LAUNCH -eq 1 ]
            then
                display
            fi
        fi;;

    #################################################################
    "stop")
        if [ $ONLINE -eq 1 ]
        then
            server_stop
        else
            case $2 in
            "force")
                kill `ps -e | grep java | cut -d " " -f 1`
                rm -fr $MC_PATH/*.log.lck 2> /dev/null/;;
            *)
                echo "Server seems to be offline...";;
            esac
        fi;;

    #################################################################
    "restart")
        if [ $ONLINE -eq 1 ]
        then
            case $2 in
            "warn")
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Server will restart in 30s !\r"`"; sleep 20
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Server will restart in 10s !\r"`"; sleep 10;;
            esac
            server_stop
        fi
        server_launch
        if [ $DISPLAY_ON_LAUNCH -eq 1 ]
        then
            display
        fi;;

    #################################################################
    "logs")
        mkdir -p $LOG_TDIR
        cd $LOG_TDIR

        case $2 in
        "clean")
            DATE=$(date +%d-%m --date "$LOGS_DAYS day ago")
            if [ -e logs-$DATE ]
            then
                mkdir -p $BKUP_PATH/logs
                mv logs-$DATE $BKUP_PATH/logs/
            fi
        ;;
        esac

        DATE=$(date +%d-%m)
        LOG_NEWDIR=logs-$DATE
        if [ -e $LOG_TDIR/$LOG_NEWDIR ]
        then
            rm $LOG_TDIR/$LOG_NEWDIR/*
        else
            mkdir $LOG_TDIR/$LOG_NEWDIR
        fi

        DATE=$(date +%d-%m-%Hh%M)
        LOG_TFILE=logs-$DATE.log

        if [ $SERVERMOD -eq 1 ]
        then
            if [ $ONLINE -eq 1 ]
            then
                LOG_LCK=$(basename $MC_PATH/logs/*.log.lck .log.lck)
                echo "Found a log lock : $LOG_LCK"
            else
                LOG_LCK=""
            fi

            cd $MC_PATH/logs/
            for i in *
            do
                if [ $i != $LOG_LCK.log.lck ] # skip du fichier lck
                then
                    cat $i >> $LOG_TDIR/$LOG_NEWDIR/$LOG_TFILE
                    if [ $i != $LOG_LCK.log ]   # On ne supprime pas le fichier log courant, si le serv est en route
                    then
                        rm $i
                    fi
                fi
            done
        else
            cd $MC_PATH
            cat server.log >> $LOG_TDIR/$LOG_NEWDIR/$LOG_TFILE
        fi

        if [ -e $LOG_TDIR/ip-list.log ]
        then
            cat $LOG_TDIR/ip-list.log | sort | uniq > $LOG_TDIR/templist.log
        fi

        cat $LOG_TDIR/$LOG_NEWDIR/$LOG_TFILE | egrep '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+.+logged in'  | sed -e 's/.*\[INFO\]\s//g' -e 's/\[\//\t/g' -e 's/:.*//g' >> $LOG_TDIR/templist.log
        cat $LOG_TDIR/templist.log | sort | uniq -w 4 > $LOG_TDIR/ip-list.log
        rm $LOG_TDIR/templist.log

        cat $LOG_TDIR/$LOG_NEWDIR/$LOG_TFILE | egrep 'logged in|lost connection' | sed -e 's/.*\([0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\}\).\[INFO\].\([a-zA-Z0-9_]\{1,\}\).\{1,\}logged in/\1\t\2 : connected/g' -e 's/.*\([0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\}\).\[INFO\].\([a-zA-Z0-9_]\{1,\}\).lost connection.*/\1\t\2 : disconnected/g' >> $LOG_TDIR/$LOG_NEWDIR/connexions-$DATE.log

        cat $LOG_TDIR/$LOG_NEWDIR/$LOG_TFILE | egrep '<[a-zA-Z0-9_]+>|\[CONSOLE\]' | sed -e 's/.*\([0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\}\).\[INFO\]./\1 /g' >> $LOG_TDIR/$LOG_NEWDIR/chat-$DATE.log

        cat $LOG_TDIR/$LOG_NEWDIR/$LOG_TFILE | egrep 'Internal exception|error' | sed -e 's/.*\([0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\}\).\[INFO\]./\1\t/g' >> $LOG_TDIR/$LOG_NEWDIR/errors-$DATE.log
    ;;

    #################################################################
    "backup")

        mkdir -p $BKUP_PATH

        if [ -e $MC_PATH/$WORLD_NAME ]
        then
            if [ $ONLINE -eq 1 ]
            then
                echo "Server running, warning players : backup in 10s."
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Backing up the map in 10s\r"`"; sleep 10
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Now backing up the map...\r"`"
                echo "Issuing save-all command, wait 5s..."
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "save-all\r"`"; sleep 5
                echo "Issuing save-off command..."
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "save-off\r"`"; sleep 1
            fi

            cd $BKUP_PATH

            DATE=$(date +%Y-%m-%d-%Hh%M)
            FILENAME=$WORLD_NAME-$DATE
            BACKUP_FILES=$BKUP_PATH/list.$DATE

            if test `date +%H` -eq 0 -o ! -f $BACKUP_FULL_LINK
            then
                # Make full backup, and remove old incrementals
                FILENAME=$FILENAME-full.tgz

                # Remove incrementals older than $BKUP_DAYS_INCR
                # Remove full archives older than $BKUP_DAYS_FULL
                find ./$WORLD_NAME-*-incr.tgz -type f -mtime +$BKUP_DAYS_INCR -print > purgelist
                find ./$WORLD_NAME-*-full.tgz -type f -mtime +$BKUP_DAYS_FULL -print >> purgelist
                rm -f `cat purgelist`
                rm -f purgelist

                # Now make our full backup
                pushd $MC_PATH
                find $WORLD_NAME -type f -print > $BACKUP_FILES
                tar -zcvf $BKUP_PATH/$FILENAME --files-from=$BACKUP_FILES
                popd

                rm -f $BACKUP_FULL_LINK $BACKUP_INCR_LINK
                ln -s $FILENAME $BACKUP_FULL_LINK
            else
                # Make incremental backup
                FILENAME=$FILENAME-incr.tgz

                pushd $MC_PATH
                find $WORLD_NAME -newer $BACKUP_FULL_LINK -type f -print > $BACKUP_FILES
                tar -zcvf $BKUP_PATH/$FILENAME --files-from=$BACKUP_FILES
                popd

                rm -f $BACKUP_INCR_LINK
                ln -s $FILENAME $BACKUP_INCR_LINK
            fi

            rm -f $BACKUP_FILES

            if [ $ONLINE -eq 1 ]
            then
                echo "Issuing save-on command..."
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "save-on\r"`"; sleep 1
                screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Backup is done, have fun !\r"`"
            fi
            echo "Backup process is over."
        else
            echo "The world \"$WORLD_NAME\" does not exist.";
        fi;;

    #################################################################
    "cartography")

        if [ -e $CARTO_PATH ]
        then
            if [ -e $MC_PATH/$WORLD_NAME ]
            then
                if [ $ONLINE -eq 1 ]
                then
                    echo "Issuing save-all command, wait 5s...";
                    screen -S $SCREEN_NAME -p 0 -X stuff "`printf "save-all\r"`"; sleep 5
                    echo "Issuing save-off command...";
                    screen -S $SCREEN_NAME -p 0 -X stuff "`printf "save-off\r"`"; sleep 1
                    screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Map cartography has begun.\r"`"
                fi

                mkdir -p $MAPS_PATH

                DATE=$(date +%d-%m-%Y-%Hh%M)
                FILENAME=$WORLD_NAME-map-$DATE
                cd $CARTO_PATH
                echo "Cartography in progress..."
                ./c10t -w $MC_PATH/$WORLD_NAME/ -o $FILENAME.png -q -s
                mv *.png $MAPS_PATH
                cd $MC_PATH
                echo "Cartography is done."

                if [ $ONLINE -eq 1 ]
                then
                    echo "Issuing save-on command..."
                    screen -S $SCREEN_NAME -p 0 -X stuff "`printf "save-on\r"`"; sleep 1
                    screen -S $SCREEN_NAME -p 0 -X stuff "`printf "say Map cartography is done.\r"`"
                fi

            else
                echo "The world \"$WORLD_NAME\" does not exist.";
            fi
        else
            echo "The path to cartographier seems to be wrong."
        fi;;

    #################################################################
    "update")

        if [ $ONLINE -eq 1 ]
        then
            server_stop
        fi

        mkdir -p $BKUP_PATH

        echo "Backing up current binaries..."
        DATE=$(date +%d-%m-%Y)
        cd $MC_PATH
        if [ $SERVERMOD -eq 1 ]
        then
            tar -czf minecraft_server-$DATE.tar.gz minecraft_server.jar Minecraft_Mod.jar
            rm Minecraft_Mod.jar
        else
            tar -czf minecraft_server-$DATE.tar.gz minecraft_server.jar
        fi
        mv minecraft_server-$DATE.tar.gz $BKUP_PATH

        echo "Downloading new binaries..."
        wget -N http://www.minecraft.net/download/minecraft_server.jar
        if [ $SERVERMOD -eq 1 ]
        then
            "Downloading hey0's serverMod..."
            mkdir -p ModTmp; cd ModTmp/
            wget -O Minecraft_Mod.zip http://hey0.net/get.php?dl=serverbeta
            unzip Minecraft_Mod.zip
            cp bin/Minecraft_Mod.jar $MC_PATH/Minecraft_Mod.jar
            cd $MC_PATH; rm -rf ModTmp
        fi
        if [ $RUNECRAFT -eq 1 ]
        then
            echo "Downloading Runecraft..."
            mkdir -p ModTmp; cd ModTmp/
            wget http://llama.cerberusstudios.net/runecraft_latest.zip
            unzip runecraft_latest.zip
            jar uvf $MC_PATH/minecraft_server.jar in.class o.class mm.class rm.class rn.class rt.class
            cd $MC_PATH; rm -rf ModTmp
        fi

        server_launch
        if [ $DISPLAY_ON_LAUNCH -eq 1 ]
        then
            display
        fi;;

    #################################################################
    *)
        echo "Usage : minecraft <status | start [force] | stop | restart [warn] | logs [clean] | backup [clean] | cartography | update>";
    esac

else
    if [ $ONLINE -eq 1 ]
    then
        display
    else
        echo "Minecraft server seems to be offline..."
    fi
fi
exit 0