jiriks74/msman.sh
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v2.1.0
msman.sh/msman.sh

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#!/bin/bash
set -e
#############################################################################################################
# MinecraftServerMANager #
# by jiriks74 #
# https://github.com/jiriks74/msman.sh #
# This script is under GPLv3, if you want to distribute changes you have to do so under the same license #
# and acknowledge the original script and author. #
#############################################################################################################
CURRENT_SCRIPT_VERSION="v2.1.1"
# --------------------------------------------------
# You shouldn't need to change anything in this file
# Settings are located in 'msman.cfg'
# --------------------------------------------------
#
# The url of the script (used for updating)
REPO_OWNER="jiriks74"
REPO_NAME="msman.sh"
# Check for dependencies
function check_dependencies {
# Check if curl is installed
if ! command -v curl &> /dev/null
then
echo "Error: Curl is not installed"
exit 1
fi
# Check if jq is installed
if ! command -v jq &> /dev/null
then
echo "Error: jq is not installed"
exit 1
fi
# Check if awk is installed
if ! command -v awk &> /dev/null
then
echo "Error: awk is not installed"
exit 1
fi
# Check if screen is installed
if ! command -v screen &> /dev/null
then
echo "Error: screen is not installed"
exit 1
fi
# Check if tar is installed
if ! command -v tar &> /dev/null
then
echo "Error: tar is not installed"
exit 1
fi
# Check if gzip is installed
# TODO: Check if this is needed and/or works
# if ! command -v gzip &> /dev/null
# then
# echo "Error: gzip is not installed"
# exit 1
# fi
}
# Ask if the user wants to continue anyway
# If the user doesn't answer in 15 seconds, the script will exit
function ask_continue {
if [[ $java_version_override != true ]]; then
answer=""
echo "You have 15 seconds to respond before the script exits."
read -t 15 -p "Do you want to continue anyway? [y/N]: " answer
if [[ $answer != "y" ]] && [[ $answer != "Y" ]]; then
echo "Exiting..."
exit 1
fi
fi
}
# Set arguments for java
function set_java_args {
# Check if $override_flags is not true
if [[ $override_flags != true ]]; then
if [[ "${mem%M}" -gt 12000 ]]; then
G1NewSize=40
G1MaxNewSize=50
G1HeapRegionSize=16M
G1Reserve=15
InitiatingHeapOccupancy=20
else
G1NewSize=30
G1MaxNewSize=40
G1HeapRegionSize=8M
G1Reserve=20
InitiatingHeapOccupancy=15
fi
# Aikar's flags are used by default
# See https://docs.papermc.io/paper/aikars-flags
java_launchoptions="-Xms$mem -Xmx$mem -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=$G1NewSize -XX:G1MaxNewSizePercent=$G1MaxNewSize -XX:G1HeapRegionSize=$G1HeapRegionSize -XX:G1ReservePercent=$G1Reserve -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=$InitiatingHeapOccupancy -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"
fi
}
# Ask if the new server version differs from the old one
function ask_version_differs {
echo
echo
echo "The current server version differs from the one you selected."
echo "The server version is $current_version and the selected version is $select_version."
echo "Do you want to update the server version?"
echo "This can cause many issues if you don't know what you are doing."
echo
echo "I am not responsible for any data loss caused by updating the server version."
echo
echo "You have 15 seconds to respond, or the script will exit"
read -t 15 -p "Do you want to update the server version? [y/N] " version_differs
if [ "$version_differs" != "y" ] && [ "$version_differs" != "Y" ]; then
echo "Server version not updated."
echo "To start the server again with the current version, change the version in the config to $current_version."
exit 4
fi
if [ "$version_differs" == "y" ] || [ "$version_differs" == "Y" ]; then
read -t 15 -p "Are you sure you want to update the server version? [y/N] " version_differs
if [ "$version_differs" != "y" ] && [ "$version_differs" != "Y" ]; then
echo "Server version not updated."
echo "To start the server again with the current version, change the version in the config to $current_version."
exit 4
fi
fi
}
# Ask if the new server version differs from the old one
function ask_server_type_differs {
echo
echo
echo "The current server type differs from the one you selected."
echo "The server version is $existing_server_type and the selected type is $server_type."
echo "Do you want to change the server type?"
echo "This can cause many issues if you don't know what you are doing."
echo
echo "I am not responsible for any data loss caused by changing the server type."
echo
echo "You have 15 seconds to respond, or the script will exit"
read -t 15 -p "Do you want to change the server type? [y/N] " type_differs
if [ "$type_differs" != "y" ] && [ "$type_differs" != "Y" ]; then
echo "Server type not changed."
echo "To start the server again with the server type, change the server type in the config to $existing_server_type."
exit 4
fi
if [ "$type_differs" == "y" ] || [ "$type_differs" == "Y" ]; then
read -t 15 -p "Are you sure you want to change the server type? [y/N] " type_differs
if [ "$type_differs" != "y" ] && [ "$type_differs" != "Y" ]; then
echo "Server type not changed."
echo "To start the server again with the server type, change the server type in the config to $existing_server_type."
exit 4
fi
fi
}
# Ask if the new server version differs from the old one
function ask_server_differs {
echo
echo
echo "The current server type differs from the one you selected."
echo "The current server type is $current_server_type and the selected version is $server_type."
echo "Do you want to change server types?"
echo "This can cause many issues if you don't know what you are doing."
echo
echo "I am not responsible for any data loss caused by changing server types."
echo
echo "You have 15 seconds to respond, or the script will exit"
read -t 15 -p "Do you want to change the server version type? [y/N] " version_differs
if [ "$version_differs" != "y" ] && [ "$version_differs" != "Y" ]; then
echo "Server version not updated."
echo "To start the server again with the current version, change the version in the config to $current_version."
exit 4
fi
if [ "$version_differs" == "y" ] || [ "$version_differs" == "Y" ]; then
read -t 15 -p "Are you sure you want to update the server version? [y/N] " version_differs
if [ "$version_differs" != "y" ] && [ "$version_differs" != "Y" ]; then
echo "Server version not updated."
echo "To start the server again with the current version, change the version in the config to $current_version."
exit 4
fi
fi
}
# Accept EULA
function accept_eula {
if test "$(cat eula.txt 2>/dev/null)" != "eula=true"; then
first_run=true
echo "'eula.txt' does not exist or EULA is not accepted"
echo "You have to accept the Minecraft EULA to run the server"
echo "By entering 'y' you are indicating your agreement to Minecraft's EULA (https://aka.ms/MinecraftEULA)."
echo "You have 15 seconds to respond, or the script will exit"
read -t 15 -p "Do you agree to the Minecraft EULA? [y/N] " eula_agreed
if [ "$eula_agreed" == "y" ] || [ "$eula_agreed" == "Y" ]; then
if [ ! -f eula.txt ]; then
echo "eula=true" > eula.txt
else
rm eula.txt
echo "eula=true" > eula.txt
fi
echo
echo
echo "EULA accepted"
echo
echo
else
echo
echo
echo "You did not agree to the Minecraft EULA"
echo "Exiting..."
exit 1
fi
fi
}
# Launch the server
function launch_server {
echo "Starting the server..."
echo
echo
java $java_launchoptions -jar $server_file $mc_launchoptions
}
# Helper scripts update
function helper_scripts_update {
# Download matching version of helper scripts
echo "Updating helper scripts..."
# Download the file into ms-man-helper.tar.gz
if [[ $(curl -sLJ -w '%{http_code}\n' "https://github.com/$REPO_OWNER/$REPO_NAME/releases/download/$CURRENT_SCRIPT_VERSION/msman-helper.tar.gz" -o msman-helper.tar.gz) == 200 ]]; then
# Extract the files from ms-man-helper.tar.gz
tar -xzf msman-helper.tar.gz
if [ -d .msman ]; then
# Remove the old scripts
echo "Removing old helper scripts..."
rm -rf .msman
echo "Removed old script"
fi
echo "Moving new helper scripts into place..."
mv msman/.msman .msman
echo "Removing temporary files..."
rm msman-helper.tar.gz
rm -rf msman
echo "Helper scripts updated successfully."
EXTRA_SCRIPTS_VERSION=$(echo $CURRENT_SCRIPT_VERSION)
echo
echo
else
echo "Failed to update helper scripts."
rm -rf msman
rm msman-helper.tar.gz
exit 5
fi
}
# Download the update for the script
function self_update {
# Download the latest version of the script
echo "Updating script..."
# Download the file into msman_new.sh
if [[ $(curl -sLJ -w '%{http_code}\n' "https://github.com/$REPO_OWNER/$REPO_NAME/releases/download/$LATEST_SCRIPT_VERSION/msman.sh" -o msman_new.sh) == 200 ]]; then
# Make the file executable
chmod +x msman_new.sh
# Remove the old script
if [[ -f msman.sh ]]; then
echo "Removing old script..."
rm msman.sh
echo "Removed old script"
fi
echo "Moving new script into place..."
# Rename the new script
mv msman_new.sh msman.sh
echo "Moved new script into place"
echo "Script updated successfully."
echo
else
echo "Failed to update script."
rm msman_new.sh
exit 5
fi
}
# Check helper scripts update
function check_helper_scripts {
if [[ -d .msman ]]; then
source "./.msman/version.sh"
if [[ $CURRENT_SCRIPT_VERSION != $EXTRA_SCRIPTS_VERSION ]]; then
echo "Helper script verion mismatch!"
echo "Main script version: $CURRENT_SCRIPT_VERSION"
echo "Helper script version: $EXTRA_SCRIPTS_VERSION"
echo
echo "The script will now download the same version of the helper scripts as the main script."
helper_scripts_update
fi
else
echo "Helper scripts not found."
echo "The script will now download the helper scripts."
helper_scripts_update
fi
}
# Get latest script version
function get_latest_script_release {
response=$(curl -sL "https://api.github.com/repos/$REPO_OWNER/$REPO_NAME/releases/latest")
if [[ $response =~ "API rate limit exceeded" ]]; then
echo "API limit exceeded. Will not check for updates."
LATEST_SCRIPT_VERSION=$CURRENT_SCRIPT_VERSION
else
# Extract the latest version from the response
LATEST_SCRIPT_VERSION=$(echo $response | jq -r ".tag_name")
fi
}
# Function to update the script
function check_self_update {
# Get the latest version of the script
get_latest_script_release
# Compare the current version with the latest version
if [[ "$CURRENT_SCRIPT_VERSION" != "$LATEST_SCRIPT_VERSION" ]]; then
echo "An update is available!"
echo "Current version: $CURRENT_SCRIPT_VERSION"
echo "Latest version: $LATEST_SCRIPT_VERSION"
echo
echo "The script will continue without updating in 15 seconds."
echo "If you decide to update it is your responsibility to check the release notes for any breaking changes."
read -t 15 -p "Do you want to update and read the release notes? [y/N]"
if [ "$REPLY" == "y" ] || [ "$REPLY" == "Y" ]; then
# Extract the release notes from the response
RELEASE_NOTES=$(echo "$response" | jq -r ".body")
# Print the release notes
echo "$RELEASE_NOTES" | less
# Ask the user if they want to update
echo
echo "The script will continue without updating in 15 seconds."
echo "If you decide to update it is your responsibility to check the release notes for any breaking changes."
read -t 15 -p "Do you want to update? [y/N] " update
if [ "$update" == "y" ] || [ "$update" == "Y" ]; then
self_update
CURRENT_SCRIPT_VERSION=$LATEST_SCRIPT_VERSION
check_helper_scripts
bash -c "$(pwd)/msman.sh"
else
echo "Skipping update."
return
fi
fi
echo
echo
fi
}
# Load config
function load_config {
# Check if the config file exists
if [ ! -f msman.cfg ]; then
echo "Config file does not exist."
echo "Downloading the default config file..."
# Download the default config file for the current version
if [[ $(curl -sLJ -w '%{http_code}\n' "https://github.com/$REPO_OWNER/$REPO_NAME/releases/download/$CURRENT_SCRIPT_VERSION/msman.cfg" -o msman.cfg) == 200 ]]; then
echo
read -p "Do you want to edit the config file? [y/N] " edit_config
if [ "$edit_config" == "y" ] || [ "$edit_config" == "Y" ]; then
if [ -z "$EDITOR" ]; then
>&2 echo "EDITOR is not set."
>&2 echo "Open 'msman.cfg' manually."
echo "Exiting..."
exit 1
else
# Check if $EDITOR is installed
if ! command -v $EDITOR &> /dev/null; then
>&2 echo "$EDITOR is not installed."
>&2 echo "Open 'msman.cfg' manually."
echo "Exiting..."
exit 1
fi
echo "Opening the config file in $EDITOR..."
$EDITOR msman.cfg
fi
fi
else
>&2 echo "Failed to download the default config file."
>&2 echo "Go to the GitHub repository for more information:"
>&2 echo "https://github.com/$REPO_OWNER/$REPO_NAME"
rm msman.cfg
echo "Exiting..."
exit 1
fi
fi
# Load config
source msman.cfg
}
# Delete old server file with name $old_server_file
function delete_old_server {
# Delete the old server file
echo "Deleting old server file '$server_file...'"
rm "$old_server_file"
echo "Old server file deleted."
}
# Load the rest of the script
function load_script {
# DONE: Check if the script files exist
# - Checked in check_helper_scripts
source "./.msman/detect_server.sh"
source "./.msman/java.sh"
# Load the correct script
if [[ $server_type == "paper" ]]; then
source "./.msman/paper.sh"
elif [[ $server_type == "fabric" ]]; then
source "./.msman/fabric.sh"
# elif [[ $server_type == "vanilla" ]]; then
# source "$cwd/msman/vanilla.sh"
# elif [[ $server_type == "forge" ]]; then
# source "$cwd/msman/forge.sh"
else
>&2 echo "Unknown server type."
echo "Exiting..."
exit 1
fi
}
# First run
first_run() {
if [[ $first_run == true ]]; then
answer=""
echo "Since eula wasn't accepted, this is probably the first run of the server."
echo "If you want to install plugins (or mods), answer 'n' and you can do so."
echo "If you don't answer, the server will start in 15 seconds."
read -t 15 -p "Do you want to start the server now? [Y/n] " answer
if [ "$answer" == "n" ] || [ "$answer" == "N" ]; then
echo "Exiting..."
exit 0
fi
fi
}
# Main function
function main {
# Check dependencies
check_dependencies
# Load config
load_config
if [[ $check_for_script_updates == true ]]; then
# Check for script updates
check_self_update
else
echo "Skipping script update check."
fi
# Check helper scripts version mismatch
check_helper_scripts
# Load the rest of the script
# Get the current server file, version and build
load_script
# Check if the server type differs from the one in the config
if [[ $existing_server_type != $server_type ]]; then
ask_server_differs
fi
# Gets the installed server info
get_existing_server
# Check if the version and build are valid
check_version_valid
# Check if the correct java version is installed
setup_java
# Check if the server is up to date and if not, update it
check_and_update
# Accept EULA
accept_eula
# Check if this is the first run
first_run
# Launch the server
launch_server
}
if [[ "$1" == "--edit-config" ]] || [[ "$1" == "-e" ]]; then
if ! command -v $EDITOR &> /dev/null; then
echo "EDITOR is not set."
echo "Open 'msman.cfg' manually."
exit 1
else
$EDITOR msman.cfg
exit 0
fi
elif [[ "$1" == "--help" ]] || [[ "$1" == "-h" ]]; then
echo "Usage: ./msman.sh [OPTION]"
echo "Starts the Minecraft server."
echo
echo "Options:"
echo " -e, --edit-config Edit the config file."
echo " -h, --help Show this help message."
echo
echo "To change the settings of the script, edit the 'msman.cfg' file."
echo "If the file does not exist, it will be downloaded automatically when the script is run and you will be asked if you want to edit it."
echo
echo "For more information, see:"
echo "https://github.com/$REPO_OWNER/$REPO_NAME"
exit 0
else
# Run the main function
main
fi
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