Minecraft Custom Startup for forge

minecraft_forge.sh

DEFAULT_ARGUMENT="-XX:+UseG1GC \
-XX:+ParallelRefProcEnabled \
-XX:MaxGCPauseMillis=200 \
-XX:+UnlockExperimentalVMOptions \
-XX:+DisableExplicitGC \
-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"

SERVER_JAR="-Dterminal.jline=false \
-Dterminal.ansi=true \
$( \
  [[ ! -f unix_args.txt ]] && printf %s "-jar {{SERVER_JARFILE}}" || printf %s "@unix_args.txt" \
)"

STARTUP="java \
-Xms256M \
-XX:MaxRAMPercentage=92.5 \
${DEFAULT_ARGUMENT} \
${SERVER_JAR}"

if [[ "{{CUSTOM_STARTUP_ENABLE}}" == "1" ]] && [[ -n "{{CUSTOM_STARTUP}}" ]]; then
  if [[ "{{CUSTOM_MEMORY_ENABLE}}" == "1" ]] && [[ -n "{{CUSTOM_MEMORY}}" ]]; then
    STARTUP="java \
    -Xms256M \
    -XX:MaxRAMPercentage=92.5 \
    {{CUSTOM_STARTUP}} \
    ${SERVER_JAR}"
  else
    STARTUP="java \
    {{CUSTOM_MEMORY}} \
    ${SERVER_JAR}"
  fi
else
  if [[ "{{CUSTOM_MEMORY_ENABLE}}" == "1" ]] && [[ -n "{{CUSTOM_MEMORY}}" ]]; then
    STARTUP="java \
    {{CUSTOM_MEMORY}} \
    ${DEFAULT_ARGUMENT} \
    ${SERVER_JAR}"
  fi
fi

clear && echo "${STARTUP}" && ${STARTUP}