JustPaste.it - Share Text & Images the Easy Way

#!/usr/bin/env bash

# Start script generated by ServerPackCreator 3.15.1.
# Depending on which modloader is set, different checks are run to ensure the server will start accordingly.
# If the modloader checks and setup are passed, Minecraft and EULA checks are run.
# If everything is in order, the server is started.

if [[ "$(id -u)" == "0" ]]; then
echo "Warning! Running with administrator-privileges is not recommended."
fi

MINECRAFT_VERSION="1.16.5"
MODLOADER="Forge"
MODLOADER_VERSION="36.2.39"
ARGS=""
JAVA="java"
LEGACYFABRIC_INSTALLER_VERSION="0.11.1"
FABRIC_INSTALLER_VERSION="0.11.1"
QUILT_INSTALLER_VERSION="0.5.0"
MINECRAFT_SERVER_URL="https://launcher.mojang.com/v1/objects/1b557e7b033b583cd9f66746b7a9ab1ec1673ced/server.jar"

# Variables with do_not_manually_edit are set automatically during script execution,
# so manually editing them will have no effect, as they will be overridden.
MINECRAFT_SERVER_JAR_LOCATION="do_not_manually_edit"
LAUNCHER_JAR_LOCATION="do_not_manually_edit"
SERVER_RUN_COMMAND="do_not_manually_edit"

crash() {
echo "Exiting..."
read -n 1 -s -r -p "Press any key to continue"
exit 1
}

# $1 = Filename to check for
# $2 = Filename to save download as
# $3 = URL to download $2 from
# true if the file was successfully downloaded, false if it already exists
downloadIfNotExist() {
if [[ ! -s "${1}" ]]; then
echo "${1} could not be found." >&2
echo "Downloading ${2}" >&2
echo "from ${3}" >&2
curl -# -L -o "./${2}" "${3}"
if [[ -s "${2}" ]]; then
echo "Download complete." >&2
echo "true"
fi
else
echo "${1} present." >&2
echo "false"
fi
}

runJavaCommand() {
"$JAVA" ${1}
}

checkJavaBitness() {
"$JAVA" "-version" 2>&1 | grep -i "32-Bit" && echo "WARNING! 32-Bit Java detected! It is highly recommended to use a 64-Bit version of Java!"
}

# If modloader = Forge, run Forge-specific checks
setup_forge() {
echo ""
echo "Running Forge checks and setup..."

FORGE_INSTALLER_URL="https://files.minecraftforge.net/maven/net/minecraftforge/forge/${MINECRAFT_VERSION}-${MODLOADER_VERSION}/forge-${MINECRAFT_VERSION}-${MODLOADER_VERSION}-installer.jar"

FORGE_JAR_LOCATION="do_not_manually_edit"
IFS="." read -ra MINOR <<<"${MINECRAFT_VERSION}"

if [[ ${MINOR[1]} -le 16 ]]; then

FORGE_JAR_LOCATION="forge.jar"
LAUNCHER_JAR_LOCATION="forge.jar"
MINECRAFT_SERVER_JAR_LOCATION="minecraft_server.${MINECRAFT_VERSION}.jar"
SERVER_RUN_COMMAND="-Dlog4j2.formatMsgNoLookups=true ${ARGS} -jar ${LAUNCHER_JAR_LOCATION} nogui"

else

FORGE_JAR_LOCATION="libraries/net/minecraftforge/forge/${MINECRAFT_VERSION}-${MODLOADER_VERSION}/forge-${MINECRAFT_VERSION}-${MODLOADER_VERSION}-server.jar"
MINECRAFT_SERVER_JAR_LOCATION="libraries/net/minecraft/server/${MINECRAFT_VERSION}/server-${MINECRAFT_VERSION}.jar"
SERVER_RUN_COMMAND="-Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt @libraries/net/minecraftforge/forge/${MINECRAFT_VERSION}-${MODLOADER_VERSION}/unix_args.txt nogui"

if [[ ! -s "user_jvm_args.txt" ]]; then

{
echo "# Xmx and Xms set the maximum and minimum RAM usage, respectively."
echo "# They can take any number, followed by an M or a G."
echo "# M means Megabyte, G means Gigabyte."
echo "# For example, to set the maximum to 3GB: -Xmx3G"
echo "# To set the minimum to 2.5GB: -Xms2500M"
echo "# A good default for a modded server is 4GB."
echo "# Uncomment the next line to set it."
echo "# -Xmx4G"
echo "${ARGS}"
} >>user_jvm_args.txt

else
echo "user_jvm_args.txt present..."
fi

if [[ $(downloadIfNotExist "${FORGE_JAR_LOCATION}" "forge-installer.jar" "${FORGE_INSTALLER_URL}") == "true" ]]; then

echo "Forge Installer downloaded. Installing..."
runJavaCommand "-jar forge-installer.jar --installServer"

if [[ ${MINOR[1]} -gt 16 ]]; then

rm -f run.bat
rm -f run.sh

else

echo "Renaming forge-${MINECRAFT_VERSION}-${MODLOADER_VERSION}.jar to forge.jar"
mv forge-"${MINECRAFT_VERSION}"-"${MODLOADER_VERSION}".jar forge.jar

if [[ -s "${FORGE_JAR_LOCATION}" ]]; then

rm -f forge-installer.jar
rm -f forge-installer.jar.log
echo "Installation complete. forge-installer.jar deleted."

else

rm -f forge-installer.jar
echo "Something went wrong during the server installation. Please try again in a couple of minutes and check your internet connection."
crash

fi
echo ""
}

# If modloader = Fabric, run Fabric-specific checks
setup_fabric() {
echo ""
echo "Running Fabric checks and setup..."

FABRIC_INSTALLER_URL="https://maven.fabricmc.net/net/fabricmc/fabric-installer/${FABRIC_INSTALLER_VERSION}/fabric-installer-${FABRIC_INSTALLER_VERSION}.jar"
FABRIC_CHECK_URL="https://meta.fabricmc.net/v2/versions/loader/${MINECRAFT_VERSION}/${MODLOADER_VERSION}/server/json"
FABRIC_AVAILABLE="$(curl -LI ${FABRIC_CHECK_URL} -o /dev/null -w '%{http_code}\n' -s)"
IMPROVED_FABRIC_LAUNCHER_URL="https://meta.fabricmc.net/v2/versions/loader/${MINECRAFT_VERSION}/${MODLOADER_VERSION}/${FABRIC_INSTALLER_VERSION}/server/jar"
IMPROVED_FABRIC_LAUNCHER_AVAILABLE="$(curl -LI ${IMPROVED_FABRIC_LAUNCHER_URL} -o /dev/null -w '%{http_code}\n' -s)"

if [[ "$IMPROVED_FABRIC_LAUNCHER_AVAILABLE" == "200" ]]; then

echo "Improved Fabric Server Launcher available..."
echo "The improved launcher will be used to run this Fabric server."
LAUNCHER_JAR_LOCATION="fabric-server-launcher.jar"
downloadIfNotExist "fabric-server-launcher.jar" "fabric-server-launcher.jar" "${IMPROVED_FABRIC_LAUNCHER_URL}" >/dev/null

elif [[ "${FABRIC_AVAILABLE}" != "200" ]]; then

echo "Fabric is not available for Minecraft ${MINECRAFT_VERSION}, Fabric ${MODLOADER_VERSION}."
crash

elif [[ $(downloadIfNotExist "fabric-server-launch.jar" "fabric-installer.jar" "${FABRIC_INSTALLER_URL}") == "true" ]]; then

echo "Installer downloaded..."
LAUNCHER_JAR_LOCATION="fabric-server-launch.jar"
MINECRAFT_SERVER_JAR_LOCATION="server.jar"
runJavaCommand "-jar fabric-installer.jar server -mcversion ${MINECRAFT_VERSION} -loader ${MODLOADER_VERSION} -downloadMinecraft"

if [[ -s "fabric-server-launch.jar" ]]; then

rm -rf .fabric-installer
rm -f fabric-installer.jar
echo "Installation complete. fabric-installer.jar deleted."

else

rm -f fabric-installer.jar
echo "fabric-server-launch.jar not found. Maybe the Fabric servers are having trouble."
echo "Please try again in a couple of minutes and check your internet connection."
crash

else

echo "fabric-server-launch.jar present. Moving on..."
LAUNCHER_JAR_LOCATION="fabric-server-launcher.jar"
MINECRAFT_SERVER_JAR_LOCATION="server.jar"

SERVER_RUN_COMMAND="-Dlog4j2.formatMsgNoLookups=true ${ARGS} -jar ${LAUNCHER_JAR_LOCATION} nogui"
echo ""
}

# If modloader = Quilt, run Quilt-specific checks
setup_quilt() {
echo ""
echo "Running Quilt checks and setup..."

QUILT_INSTALLER_URL="https://maven.quiltmc.org/repository/release/org/quiltmc/quilt-installer/${QUILT_INSTALLER_VERSION}/quilt-installer-${QUILT_INSTALLER_VERSION}.jar"
QUILT_CHECK_URL="https://meta.fabricmc.net/v2/versions/intermediary/${MINECRAFT_VERSION}"
QUILT_AVAILABLE="$(curl -LI ${QUILT_CHECK_URL} -o /dev/null -w '%{http_code}\n' -s)"

if [[ "${#QUILT_AVAILABLE}" -eq "2" ]]; then

echo "Quilt is not available for Minecraft ${MINECRAFT_VERSION}, Quilt ${MODLOADER_VERSION}."
crash

elif [[ $(downloadIfNotExist "quilt-server-launch.jar" "quilt-installer.jar" "${QUILT_INSTALLER_URL}") == "true" ]]; then

echo "Installer downloaded. Installing..."
runJavaCommand "-jar quilt-installer.jar install server ${MINECRAFT_VERSION} --download-server --install-dir=."

if [[ -s "quilt-server-launch.jar" ]]; then

rm quilt-installer.jar
echo "Installation complete. quilt-installer.jar deleted."

else

rm -f quilt-installer.jar
echo "quilt-server-launch.jar not found. Maybe the Quilt servers are having trouble."
echo "Please try again in a couple of minutes and check your internet connection."
crash

else
echo "quilt-server-launch.jar present. Moving on..."
fi

LAUNCHER_JAR_LOCATION="quilt-server-launch.jar"
MINECRAFT_SERVER_JAR_LOCATION="server.jar"
SERVER_RUN_COMMAND="-Dlog4j2.formatMsgNoLookups=true ${ARGS} -jar ${LAUNCHER_JAR_LOCATION} nogui"
echo ""
}

# If modloader = LegacyFabric, run LegacyFabric-specific checks
setup_legacyfabric() {
echo ""
echo "Running LegacyFabric checks and setup..."

LEGACYFABRIC_INSTALLER_URL="https://maven.legacyfabric.net/net/legacyfabric/fabric-installer/${LEGACYFABRIC_INSTALLER_VERSION}/fabric-installer-${LEGACYFABRIC_INSTALLER_VERSION}.jar"
LEGACYFABRIC_CHECK_URL="https://meta.legacyfabric.net/v2/versions/loader/${MINECRAFT_VERSION}"
LEGACYFABRIC_AVAILABLE="$(curl -LI ${LEGACYFABRIC_CHECK_URL} -o /dev/null -w '%{http_code}\n' -s)"

if [[ "${#LEGACYFABRIC_AVAILABLE}" -eq "2" ]]; then

echo "LegacyFabric is not available for Minecraft ${MINECRAFT_VERSION}, LegacyFabric ${MODLOADER_VERSION}."
crash

elif [[ $(downloadIfNotExist "fabric-server-launch.jar" "legacyfabric-installer.jar" "${LEGACYFABRIC_INSTALLER_URL}") == "true" ]]; then

echo "Installer downloaded. Installing..."
runJavaCommand "-jar legacyfabric-installer.jar server -mcversion ${MINECRAFT_VERSION} -loader ${MODLOADER_VERSION} -downloadMinecraft"

if [[ -s "fabric-server-launch.jar" ]]; then

rm legacyfabric-installer.jar
echo "Installation complete. legacyfabric-installer.jar deleted."

else

rm -f legacyfabric-installer.jar
echo "fabric-server-launch.jar not found. Maybe the LegacyFabric servers are having trouble."
echo "Please try again in a couple of minutes and check your internet connection."
crash

else
echo "fabric-server-launch.jar present. Moving on..."
fi

LAUNCHER_JAR_LOCATION="fabric-server-launch.jar"
MINECRAFT_SERVER_JAR_LOCATION="server.jar"
SERVER_RUN_COMMAND="-Dlog4j2.formatMsgNoLookups=true ${ARGS} -jar ${LAUNCHER_JAR_LOCATION} nogui"
echo ""
}

# Check for a minecraft server and download it if necessary
minecraft() {
echo ""
if [[ "${MODLOADER}" == "Fabric" && "$IMPROVED_FABRIC_LAUNCHER_AVAILABLE" == "200" ]]; then

echo "Skipping Minecraft Server JAR checks because we are using the improved Fabric Server Launcher."

else

downloadIfNotExist "${MINECRAFT_SERVER_JAR_LOCATION}" "${MINECRAFT_SERVER_JAR_LOCATION}" "${MINECRAFT_SERVER_URL}" >/dev/null

fi
echo ""
}

# Check for eula.txt and generate if necessary
eula() {
echo ""
if [[ ! -s "eula.txt" ]]; then

echo "Mojang's EULA has not yet been accepted. In order to run a Minecraft server, you must accept Mojang's EULA."
echo "Mojang's EULA is available to read at https://aka.ms/MinecraftEULA"
echo "If you agree to Mojang's EULA then type 'I agree'"
echo -n "Response: "
read -r ANSWER

if [[ "${ANSWER}" == "I agree" ]]; then

echo "User agreed to Mojang's EULA."
echo "#By changing the setting below to TRUE you are indicating your agreement to our EULA (https://aka.ms/MinecraftEULA)." >eula.txt
echo "eula=true" >>eula.txt

else

echo "User did not agree to Mojang's EULA."
echo "Entered: ${ANSWER}"
crash

else
echo "eula.txt present. Moving on..."
fi
echo ""
}

# Main
case ${MODLOADER} in

"Forge")
setup_forge
;;

"Fabric")
setup_fabric
;;

"Quilt")
setup_quilt
;;

"LegacyFabric")
setup_legacyfabric
;;

*)
echo "Incorrect modloader specified: ${MODLOADER}"
crash
esac

if [[ "${PWD}" == *" "* ]]; then

echo "WARNING! The current location of this script contains spaces. This may cause this server to crash!"
echo "It is strongly recommended to move this server pack to a location whose path does NOT contain SPACES!"
echo ""
echo "Current path:"
echo "${PWD}"
echo ""

echo -n "Are you sure you want to continue? (Yes/No): "
read -r WHY

if [[ "${WHY}" == "Yes" ]]; then

echo "Alrighty. Prepare for unforseen consequences, Mr. Freeman..."

else
crash
fi
fi

checkJavaBitness
minecraft
eula

echo ""
echo "Starting server..."
echo ""
echo "Minecraft version: ${MINECRAFT_VERSION}"
echo "Modloader: ${MODLOADER}"
echo "Modloader version: ${MODLOADER_VERSION}"
if [[ ${LAUNCHER_JAR_LOCATION} != "do_not_manually_edit" ]]; then
echo "Launcher JAR: ${LAUNCHER_JAR_LOCATION}"
fi
echo ""
echo "Java args: ${ARGS}"
echo "Java path: ${JAVA}"
echo "Run Command: ${JAVA} ${SERVER_RUN_COMMAND}"
echo "Java version:"
"${JAVA}" -version
echo ""

runJavaCommand "${SERVER_RUN_COMMAND}"

echo ""
echo "Exiting..."
read -n 1 -s -r -p "Press any key to continue"
exit 0