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- #!/bin/bash
- # /etc/init.d/minecraft
- # version 0.4.2 2016-02-09 (YYYY-MM-DD)
- #
- ### BEGIN INIT INFO
- # Provides: minecraft
- # Required-Start: $local_fs $remote_fs screen-cleanup
- # Required-Stop: $local_fs $remote_fs
- # Should-Start: $network
- # Should-Stop: $network
- # Default-Start: 2 3 4 5
- # Default-Stop: 0 1 6
- # Short-Description: Minecraft server
- # Description: Starts the minecraft server
- ### END INIT INFO
- #Settings
- SERVICE="${2}.jar"
- SCREENNAME=$2
- OPTIONS='nogui'
- USERNAME='root'
- WORLD='world'
- MCPATH="/home/minecraft_servers/${2}/"
- MINHEAP=4096
- HISTORY=4096
- CPU_COUNT=16
- Xms=1G
- JAVACMD="java"
- MAX_RAM="8192M" # -Xmx
- JAVA_PARAMETERS="-XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=${CPU_COUNT} -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -XX:+AggressiveOpts -Xms${Xms}"
- INVOCATION="${JAVACMD} -server -Xmx${MAX_RAM} ${JAVA_PARAMETERS} -jar ${SERVICE} nogui"
- Backuppath="/var/www/repo.openknogle.eu/Minecraft/modded/"
- Zielordner="${Backuppath}Minecraft_Modded_Backup_${SERVICE}_$(date +%Y-%m-%d_%H-%M).7z"
- Password="FASkog4AmtO1XIvGbkh8sqppYs51Eo7E7drbVpCSXOIsX4yyaUsIXvVEnLGQELMh3n1eqI23QiOGVhnsnlCX7GGMQKVapKCfoqnei2u8Ssb7ZDgbbbfYgpoo0DT"
- ME=`whoami`
- as_user() {
- if [ "$ME" = "$USERNAME" ] ; then
- bash -c "$1"
- else
- su - "$USERNAME" -c "$1"
- fi
- }
- mc_start() {
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "$SERVICE is already running!"
- else
- echo "Starting $SERVICE..."
- cd $MCPATH
- as_user "cd $MCPATH && screen -h $HISTORY -dmS ${SCREENNAME} $INVOCATION"
- sleep 7
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "$SERVICE is now running."
- else
- echo "Error! Could not start $SERVICE!"
- fi
- fi
- }
- mc_saveoff() {
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "$SERVICE is running... suspending saves"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"say SERVER BACKUP STARTING. Server going readonly...\"\015'"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-off\"\015'"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-all\"\015'"
- sync
- sleep 10
- else
- echo "$SERVICE is not running. Not suspending saves."
- fi
- }
- mc_port(){
- grep -n 'server-port=' "$MCPATH/server.properties"
- }
- mc_saveon() {
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "$SERVICE is running... re-enabling saves"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-on\"\015'"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"say SERVER BACKUP ENDED. Server going read-write...\"\015'"
- else
- echo "$SERVICE is not running. Not resuming saves."
- fi
- }
- mc_stop() {
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "Stopping $SERVICE"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"say SERVER SHUTTING DOWN IN 10 SECONDS. Saving map...\"\015'"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"save-all\"\015'"
- sleep 10
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"stop\"\015'"
- sleep 7
- else
- echo "$SERVICE was not running."
- fi
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "Error! $SERVICE could not be stopped."
- else
- echo "$SERVICE is stopped."
- fi
- }
- mc_update() {
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "$SERVICE is running! Will not start update."
- else
- as_user "cd $MCPATH && wget -q -O $MCPATH/versions --no-check-certificate https://launchermeta.mojang.com/mc/game/version_manifest.json"
- if [ "$1" == "snapshot" ] ; then
- JSONVERSION=`cd $MCPATH && cat versions | python -c "exec(\"import json,sys\nobj=json.load(sys.stdin)\nversion=obj['latest']['snapshot']\nfor v in obj['versions']:\n if v['id']==version:\n print(v['url'])\")"`
- else
- JSONVERSION=`cd $MCPATH && cat versions | python -c "exec(\"import json,sys\nobj=json.load(sys.stdin)\nversion=obj['latest']['release']\nfor v in obj['versions']:\n if v['id']==version:\n print(v['url'])\")"`
- fi
- as_user "cd $MCPATH && wget -q -O $MCPATH/versions --no-check-certificate $JSONVERSION"
- MC_SERVER_URL=`cd $MCPATH && cat versions | python -c 'import json,sys;obj=json.load(sys.stdin);print(obj["downloads"]["server"]["url"])'`
- as_user "rm $MCPATH/versions"
- as_user "cd $MCPATH && wget -q -O $MCPATH/minecraft_server.jar.update --no-check-certificate $MC_SERVER_URL"
- if [ -f $MCPATH/minecraft_server.jar.update ] ; then
- if `diff $MCPATH/$SERVICE $MCPATH/minecraft_server.jar.update >/dev/null` ; then
- echo "You are already running the latest version of $SERVICE."
- else
- as_user "mv $MCPATH/minecraft_server.jar.update $MCPATH/$SERVICE"
- echo "Minecraft successfully updated."
- fi
- else
- echo "Minecraft update could not be downloaded."
- fi
- fi
- }
- mc_backup() {
- mc_saveoff
- if [ ! -d "${MCPATH}" ]; then
- echo "MCPATH existiert nicht!"
- exit 1
- fi
- if [ -d "${Zielordner}" ]; then
- echo "Zielordner bereits vorhanden!"
- exit 1
- fi
- 7z a -t7z -mx=0 -m0=LZMA2 -mmt=${CPU_COUNT} -p"${Password}" "${Zielordner}" "${MCPATH}" >> "${Backuppath}placeholder.txt"
- 7z h -scrcsha256 "${Zielordner}" >> "${Backuppath}placeholder.txt"
- mc_saveon
- }
- mc_command() {
- command="$1";
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- pre_log_len=`wc -l "$MCPATH/logs/latest.log" | awk '{print $1}'`
- echo "$SERVICE is running... executing command"
- as_user "screen -p 0 -S ${SCREENNAME} -X eval 'stuff \"$command\"\015'"
- sleep .1 # assumes that the command will run and print to the log file in less than .1 seconds
- # print output
- tail -n $[`wc -l "$MCPATH/logs/latest.log" | awk '{print $1}'`-$pre_log_len] "$MCPATH/logs/latest.log"
- fi
- }
- #Start-Stop here
- case "$1" in
- start)
- mc_start
- ;;
- stop)
- mc_stop
- ;;
- restart)
- mc_stop
- mc_start
- ;;
- update)
- mc_stop
- mc_backup
- mc_update $2
- mc_start
- ;;
- backup)
- mc_backup
- ;;
- port)
- mc_port
- ;;
- status)
- if pgrep -u $USERNAME -f $SERVICE > /dev/null ; then
- echo "$SERVICE is running."
- else
- echo "$SERVICE is not running."
- fi
- ;;
- command)
- if [ $# -gt 1 ] ; then
- shift
- mc_command "$*"
- else
- echo "Must specify server command (try 'help'?)"
- fi
- ;;
- *)
- echo "Usage: $0 {start|stop|update|backup|status|restart|command|port \"server command\"}"
- exit 1
- ;;
- esac
- exit 0
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