mcinit.cfg

#!/bin/bash

###############
# DEPENDENCIES
###############
# The following packages are script dependencies which are often times non-standard
# Java 6
# tmux
# rsync


#############################
# MAIN CONFIGURATION OPTIONS
#############################
# These should always be changed to match your server setup

# SRVDIR
# Path pointing to mincraft server directory
# Path should be absolute, and directory should contain craftbukkit.jar file
SRVDIR=''

# MCJAR
# Name of .jar file which will be used to launch server.
MCJAR='craftbukkit.jar'

# USER
# Name of user to run server as
# User should NOT be root or have root privileges
USER=''

# LOGDIR
# Directory in which to retain old log files
# Can be an absolute path, or can be relative to SRVDIR
LOGDIR='logs'

# RUNDIR
# Directory in which to store session ID files
# Must be readable/writable by USER
# Can be absolute path, or relative to SRVDIR
RUNDIR='run'

# RUNDIR
# Directory in which to store session ID files
# Must be readable/writable by USER
# Can be absolute path, or relative to SRVDIR
RUNDIR='run'

# WLDSTR
# Directory in which all minecraft worlds will be stored.
# Move worlds into this directory after they have been created, before running the server.
# Can be an absolute path, or can be relative to SRVDIR
WLDSTR='worlds'

# WLDBK
# Directory in which to move archives of world storage
# Can be an absolute path, or can be relative to SRVDIR
WLDBK='archive/worlds'

# PLGBK
# Directory in which to store archives of plugins folder
# Can be an absolute path, or can be relative to SRVDIR
PLGBK='archive/plugins'

# SRVBK
# Directory in which to store archives of main server files
# Can be an absolute path, or can be relative to SRVDIR
SRVBK='archive/server'

# CPU_CORES
# How many CPU cores will be utilized for garbage collection (memory cleanup)
CPU_CORES=1

# INITMEM
# How much memory to dedicate full time to Java heap
INITMEM='1024M'

# MAXMEM
# Maximum amount of memory allowed to be used by Java heap
MAXMEM='1024M'

###################################
# EXTRA CONFIGURATION OPTIONS
###################################
# You can change these to your liking. Or not.
# Defaults should be pretty sane

# WARN_ON_RAM_CLEAR
# Shows a warning message and prompt before running 'ram clear' command
WARN_ON_RAM_CLEAR=true

# WARN_ON_CONSOLE_ATTACH
# Shows a warning message and prompt before attaching to tmux session
WARN_ON_CONSOLE_ATTACH=true

# LOGARCMAX
# Maximum amount of log archives to retain in LOGDIR
# Set 0 for no limit
LOGARCMAX=10

# WLDARCMAX
# Maximum amount of world storage archives to retain in WLDBK
# Set 0 for no limit
WLDARCMAX=10

# PLGARCMAX
# Maximum amount of plugin folder archives to retain in PLGBK
# Set 0 for no limit
PLGARCMAX=10

# SRVARCMAX
# Maximum amount of main server file arvhies to retain in SRVBK
# Set 0 for no limit
SRVARCMAX=10

# SESSION
# Name of the tmux session in which the server will be run
SESSION='minecraft'

###################################
# ADVANCED CONFIGURATION OPTIONS
###################################
# These should not be touched unless you know exactly what you're changing, exactly why you're changing it, and exactly what that change will accomplish
# Script is tested only with defaults; changing any of these defaults may render your setup unsupportable

# JAVAEXEC
# Path to java executable
JAVAEXEC='/usr/bin/java'

# TMUXEXEC
# Path to tmux executable
TMUXEXEC='/usr/bin/tmux'

# RSYNCEXEC
# Path to rsync executable
RSYNCEXEC='/usr/bin/rsync'

# RAMDISK
# Path to system ramdisk
RAMDISK='/dev/shm'

###################################
# ADVANCED JVM TUNING
###################################
# Garbage collection and logging optios for the JVM
# aka AdvancedConfiguration++
# If you didn't get that [lame] joke, you shouldn't even be looking at this section.

# DEFPARAMS
# Default parameters. Should not be removed/altered
DEFPARAMS="-XX:+UseCompressedOops \
-Xmx${MAXMEM} \
-Xms${INITMEM}"

# GC
# Garbage Collector. Pick one between serial, parallell, concurrent, or g1. Leave blank for JVM defau;t
GC='concurrent'

# Set Garbage Collection params based on GC choice

#########################################################
#		 PREPROCESSING SWITCH			#
# DO NOT ALTER THESE LINES UNLESS YOU INTEND		#
# TO FULLY RE-WRITE THE JVM-CONFIGURATION SECTION	#
#########################################################
shopt -s nocasematch
case $GC in
	serial)
		GCPARAMS="-XX:+UseSerialGC"
		;;
	parallel)
		GCPARAMS="-XX:+UserParallelGC -XX:ParallelGCThreads=${CPU_CORES}"
		;;
	concurrent)
		GCPARAMS="-XX:+UseConcMarkSweepGC -XX:ConcGCThreads=${CPU_CORES}"
		;;
	g1)
		GCPARAMS="-XX:+UseG1GC -XX:ConcGCThreads=${CPU_CORES}"
		;;
	*)
		GCPARAMS=''
		;;
esac
shopt -u nocasematch
#########################################################
#							#
# 		END PREPROCESSING SWITCH		#
#							#
#########################################################

# LOGGC
# Enable or disable logging of garbage collection
LOGGC=false

# Set GC logging parameters
if ${LOGGC}
then
# GCLOGFILE
# Filename of garbage collection log, if enabled
GCLOGFILE=jvm_gc.log

# GCLOGPARAMS
# Command line parameters for logging garbage collection
GCLOGPARAMS="-Xloggc:${GCLOGFILE} \
-verbose:gc \
-XX:+PrintTenuringDistribution \
-XX:+PrintGCDetails \
-XX:+PrintGCDateStamps"

# If GC logging disabled, set null logging params
else
GCLOGPARAMS=''
GCLOGFILE=''
fi

# APPEND
# Any additional JVM parameters tp be used in invocation should go here
APPEND='-XX:InitiatingHeapOccupancyPercent=0'

# INVOCATION
# Java command with which the server is invoked
INVOCATION="${JAVAEXEC} ${DEFPARAMS} ${GCPARAMS} ${GCLOGPARAMS} -jar ${MCJAR} nogui"