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- #!/bin/bash
- # /etc/init.d/minecraft
- # version 0.3.2 2011-01-27 (YYYY-MM-DD)
- ### BEGIN INIT INFO
- # Provides: minecraft
- # Required-Start: $local_fs $remote_fs
- # Required-Stop: $local_fs $remote_fs
- # Should-Start: $network
- # Should-Stop: $network
- # Default-Start: 2 3 4 5
- # Default-Stop: 0 1 6
- # Short-Description: Minecraft server
- # Description: Starts the minecraft server
- ### END INIT INFO
- #Settings
- SERVICE='minecraft_server.jar'
- USERNAME="minecraft"
- MCPATH='/var/minecraft'
- CPU_COUNT=1
- INVOCATION="java -Xmx1024M -Xms1024M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=$CPU_COUNT -XX:+AggressiveOpts -jar minecraft_server.jar nogui"
- BACKUPPATH='/data/backups/minecraft/minecraft.backup'
- ME=`whoami`
- as_user() {
- if [ $ME == $USERNAME ] ; then
- bash -c "$1"
- else
- su - $USERNAME -c "$1"
- fi
- }
- mc_start() {
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "Tried to start but $SERVICE was already running!"
- else
- echo "$SERVICE was not running... starting."
- cd $MCPATH
- as_user "cd $MCPATH && screen -dmS minecraft $INVOCATION"
- sleep 7
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE is now running."
- else
- echo "Could not start $SERVICE."
- fi
- fi
- }
- mc_saveoff() {
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE is running... suspending saves"
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"say SERVER BACKUP STARTING. Server going readonly... Expect to be disconnected...\"\015'"
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-off\"\015'"
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-all\"\015'"
- sync
- sleep 10
- else
- echo "$SERVICE was not running. Not suspending saves."
- fi
- }
- mc_saveon() {
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE is running... re-enabling saves"
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-on\"\015'"
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"say SERVER BACKUP ENDED. Server going read-write...\"\015'"
- else
- echo "$SERVICE was not running. Not resuming saves."
- fi
- }
- mc_stop() {
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE is running... stopping."
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"say SERVER SHUTTING DOWN IN 10 SECONDS. Saving map...\"\015'"
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-all\"\015'"
- sleep 10
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"stop\"\015'"
- sleep 7
- else
- echo "$SERVICE was not running."
- fi
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE could not be shut down... still running."
- else
- echo "$SERVICE is shut down."
- fi
- }
- mc_update() {
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE is running! Will not start update."
- else
- MC_SERVER_URL=http://www.minecraft.net/download/minecraft_server.jar?v=`date | sed "s/[^a-zA-Z0-9]/_/g"`
- as_user "cd $MCPATH && wget -q -O $MCPATH/minecraft_server.jar.update $MC_SERVER_URL"
- if [ -f $MCPATH/minecraft_server.jar.update ]
- then
- if `diff $MCPATH/minecraft_server.jar $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/minecraft_server.jar"
- echo "Minecraft successfully updated."
- fi
- else
- echo "Minecraft update could not be downloaded."
- fi
- fi
- }
- mc_backup() {
- echo "Backing up minecraft world"
- if [ -d $BACKUPPATH/world_`date "+%Y.%m.%d"` ]
- then
- for i in 1 2 3 4 5 6
- do
- if [ -d $BACKUPPATH/world_`date "+%Y.%m.%d"`-$i ]
- then
- continue
- else
- as_user "cd $MCPATH && cp -r world $BACKUPPATH/world_`date "+%Y.%m.%d"`-$i"
- break
- fi
- done
- else
- as_user "cd $MCPATH && cp -r world $BACKUPPATH/world_`date "+%Y.%m.%d"`"
- echo "Backed up world"
- fi
- echo "Backing up the minecraft server executable"
- if [ -f "$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d"`.jar" ]
- then
- for i in 1 2 3 4 5 6
- do
- if [ -f "$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d"`-$i.jar" ]
- then
- continue
- else
- as_user "cd $MCPATH && cp minecraft_server.jar \"$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d"`-$i.jar\""
- break
- fi
- done
- else
- as_user "cd $MCPATH && cp minecraft_server.jar \"$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d"`.jar\""
- fi
- echo "Backup complete"
- }
- mc_backup() {
- if ps ax | grep -v grep | grep -v -i SCREEN | grep $SERVICE > /dev/null
- then
- echo "$SERVICE is running."
- else
- echo "$SERVICE is not running."
- fi
- }
- mc_say() {
- if ["$2"=""]
- then
- echo "please type a message to say"
- else
- as_user "screen -p 0 -S minecraft -X eval 'stuff \"say $2\"\015'"
- 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
- mc_start
- ;;
- backup)
- mc_saveoff
- mc_backup
- mc_saveon
- mc_start
- ;;
- status)
- mc_status
- ;;
- say)
- mc_say
- ;;
- *)
- echo "Usage: /etc/init.d/minecraft {start|stop|update|backup|status|restart|say [message]}"
- exit 1
- ;;
- esac
- exit 0
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