paper-server/start.sh at main · allenvox/paper-server · GitHub

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#!/bin/sh
# Mostly took from @dymeth, dymeth.ru
server_name="server"
join_screen=true
jar_file="paper.jar" # server core file
min_memory="1G"
max_memory="2G"
server_port="" # std - 25565
force_chunks_upgrade=false

java_dir=""
profiling=false # JDK profiling (reduces performance)
fix_java_12_issues=false
debugging_port="" # if none - debugging is off
log4j_config="" # log4j settings file

# DO NOT CHANGE src: https://mcflags.emc.gs
aikar_jvm_flags="-XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true"
jvm_flags="-server -Dfile.encoding=UTF-8"
app_flags="nogui"
screen_name="${server_name}"
htop_name="${server_name}"
script_name=`basename "$0"`

if [ "$1" != "screen" ]; then
    screen -A -m -d -S ${screen_name} bash ${script_name} screen
    [ "$join_screen" = true ] && screen -x ${screen_name}
    exit
fi

#!/bin/bash

[ "$java_dir" != "" ] && java_dir="${java_dir}/"

jvm_flags="${jvm_flags} ${aikar_jvm_flags}"
if [ "$profiling" = true ]; then
    htop_name="${htop_name}-profiling"
    jvm_flags="${jvm_flags// -XX:+PerfDisableSharedMem/}"
    jvm_flags="${jvm_flags} -Xshare:off"
fi
htop_name="$USER.${htop_name}"

[ "$fix_java_12_issues" = true ] && jvm_flags="${jvm_flags} --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.reflect=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED --add-opens java.base/java.security=ALL-UNNAMED"
[ "$debugging_port" != "" ] && jvm_flags="${jvm_flags} -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=0.0.0.0:${debugging_port}"
[ "$log4j_config" != "" ] && jvm_flags="${jvm_flags} -Dlog4j.configurationFile=${log4j_config}"

[ "$server_port" != "" ] && app_flags="${app_flags} -port ${server_port}"
[ "$force_chunks_upgrade" = true ] && app_flags="${app_flags} --forceUpgrade"

jvm_flags="-D_server=${htop_name} -Xms${min_memory} -Xmx${max_memory} ${jvm_flags}"

while true
do
    eval ${java_dir}java ${jvm_flags} -jar ${jar_file} ${app_flags}
    echo "Server $screen_name stopped. Rebooting in:"
    for i in {3..1}
    do
        echo "$i..."
        sleep 1
    done
done