Initial script commit
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start.sh
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start.sh
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#!/bin/bash
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# Auto Update & Run PaperMC server script
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# Settings
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version="1.19.3"
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# Leave blank to use the latest build
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select_build=""
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# Memory settings
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initMem="1500M"
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maxMem="8000M" # Maximum memory the server can use
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# Options for the server
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mc_launchoptions="-nogui"
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# Options for the java runtime
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java_launchoptions="-Xms$initMem -Xmx$maxMem"
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# Api url
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url="https://api.papermc.io/v2/projects/paper/versions/$version/builds"
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if curl -s "$url" | grep -q '{"error":"Version not found."}'; then
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echo "Error: Invalid version selected: $version"
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exit 1
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else
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if [ ! -z "$select_build" ]; then
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if curl -Is "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$select_build/downloads/paper-$version-$select_build.jar" | grep "HTTP/2 404" >/dev/null; then
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echo "Error: Invalid build selected: $select_build"
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exit 1
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fi
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fi
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fi
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# Check if some server already exists
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if ls paper-*.jar 1> /dev/null 2>&1; then
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# Get the current server file name
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server_file=$(basename ./paper-*.jar)
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# Extract the build number using cut command
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current_build=$(echo "$server_file" | cut -d'-' -f3)
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current_build="${current_build%.jar}"
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# Check if select_build variable is set
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if [ -z "$select_build" ]; then
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echo "Checking for newer build..."
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json_response=$(curl -s "$url") # Get all the versions from the paper api
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# Get the latest build number
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latest_build=$(curl -s $url | jq '.builds[-1].build')
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# Check if the latest build is newer than the current build
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if [ "$latest_build" -gt "$current_build" ]; then
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echo "Newer build available: $latest_build"
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# Ask the user if they want to download and install the new build
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echo
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echo
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echo "You have 15 seconds to answer, then the new build will be downloaded automatically"
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read -t 15 -p "Do you want to download and install the new build? (Y/n) " answer
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# If the user doesn't answer set the answer to "y"
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if [ -z "$answer" ]; then
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answer="y"
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fi
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if [ "$answer" == "y" ]; then
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# Download the new build
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echo "Downloading the new build..."
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curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$latest_build/downloads/paper-$version-$latest_build.jar" -o "./paper-$version-$latest_build.jar"
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echo "Download complete"
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# Remove the old server file
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echo "Removing the old server file..."
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rm "$server_file"
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echo "Old server file removed"
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server_file=$(basename ./paper-*.jar)
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else
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echo "Skipping download and installation"
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fi
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else
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echo "Server is up to date"
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fi
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else
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if [ "$current_build" -ne "$select_build" ]; then
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echo "The current build is not the selected build"
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echo "Downloading the selected build..."
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curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$select_build/downloads/paper-$version-$select_build.jar" -o "./paper-$version-$select_build.jar"
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echo "Download complete"
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echo "Removing the old server file..."
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rm "$server_file"
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echo "Old server file removed"
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server_file=$(basename ./paper-*.jar)
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fi
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fi
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# If no server file exists
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else
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# Check if select_build variable is set
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if [ -z "$select_build" ]; then
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echo "Downloading the latest build of version $version..."
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json_response=$(curl -s "$url")
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# Get the latest build number
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latest_build=$(curl -s $url | jq '.builds[-1].build')
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curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$latest_build/downloads/paper-$version-$latest_build.jar" -o "./paper-$version-$latest_build.jar"
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echo "Download complete"
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else
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echo "Downloading version $version build $select_build..."
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curl -s "https://api.papermc.io/v2/projects/paper/versions/$version/builds/$select_build/downloads/paper-$version-$select_build.jar" -o "./paper-$version-$select_build.jar"
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echo "Download complete"
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fi
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fi
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if test "$(cat eula.txt 2>/dev/null)" != "eula=true"; then
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echo
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echo
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echo "'eula.txt' does not exist or is not accepted"
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echo "Please agree to the Minecraft EULA by entering 'y'"
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echo "By entering 'y' you are indicating your agreement to Minecraft's EULA (https://aka.ms/MinecraftEULA)."
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echo "You have 15 seconds to respond, or the script will exit"
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read -t 15 -p "Do you agree to the Minecraft EULA? [y/N] " eula_agreed
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if [ "$eula_agreed" == "y" ]; then
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if [ ! -f eula.txt ]; then
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# Write eula_agreed to eula.txt
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echo "eula=true" > eula.txt
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else
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rm eula.txt
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echo "eula=true" > eula.txt
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fi
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echo
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echo
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echo "EULA accepted"
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else
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echo
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echo
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echo "You did not agree to the Minecraft EULA"
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echo "Exiting..."
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exit 1
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fi
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fi
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# Run the server
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echo
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echo
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echo "Starting the server..."
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java $java_launchoptions -jar "$(basename ./paper-*.jar)" $mc_launchoptions
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