Add OenJDK JRE download
Downloads the correct OpenJDK JRE if the wrong (or no) version of Java is installed
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@ -1,66 +1,192 @@
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#!/bin/bash
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# Check if the correct version of Java is installed
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# Setup Java
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function setup_java {
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# Get the required Java version for the Minecraft version
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get_required_java
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# Check if java was downloaded by the script
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check_script_java
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# Check if java is installed
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if [[ $java_version == false ]]; then
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check_java_exec
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if [[ $java_version != false ]]; then
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echo "System Java $java_version will be used."
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fi
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fi
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if [[ $java_version == false ]]; then
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>&2 echo "Java $required_java is not installed."
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>&2 echo "Java $required_java is required to run Minecraft $version."
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# Ask the user if they want to download Adoptium JRE
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ask_jre
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fi
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echo
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echo
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}
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# Ask the user if they want to download Adoptium JRE
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function ask_jre {
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echo "This script can download the correct Adoptium JRE into '$(echo $HOME)/.adoptium_java' for you."
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echo "You have 15 seconds to confirm or the script will exit."
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read -t 12 -p "Do you want to download Adoptium JRE? (y/N)" download_java
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if [[ $download_java == "y" ]] || [[ $download_java == "Y" ]]; then
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get_os_arch
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download_jre
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check_script_java
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if [[ $java_version == false ]]; then
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>&2 echo "Java $required_java was not downloaded correctly."
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>&2 echo "Please install Java $required_java manually."
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exit 4
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fi
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else
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>&2 echo "Please install Java $required_java and run this script again."
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exit 12
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fi
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}
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# Check if java was downloaded by the script
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function check_script_java {
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if [[ -d "$(echo $HOME)/.adoptium_java" ]]; then
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if [[ $required_java == "8" ]]; then
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if [[ -d "$(echo $HOME)/.adoptium_java/jre8" ]]; then
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java_version=8
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if [[ -f "$(echo $HOME).adoptium_java/jre8/bin/java" ]]; then
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PATH="$(echo $HOME)/.adoptium_java/jre8/bin:$PATH"
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fi
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fi
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elif [[ $required_java == "11" ]]; then
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if [[ -d "$(echo $HOME)/.adoptium_java/jre11" ]]; then
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java_version=11
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PATH="$(echo $HOME)/.adoptium_java/jre11/bin:$PATH"
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fi
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elif [[ $required_java == "16" ]]; then
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if [[ -d "$(echo $HOME)/.adoptium_java/jre16" ]]; then
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java_version=16
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PATH="$(echo $HOME)/.adoptium_java/jre16/bin:$PATH"
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fi
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elif [[ $required_java == "17" ]]; then
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if [[ -d "$(echo $HOME)/.adoptium_java/jre17" ]]; then
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java_version=17
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PATH="$(echo $HOME)/.adoptium_java/jre17/bin:$PATH"
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fi
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fi
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check_java_exec
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if [[ $java_version == $required_java ]]; then
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echo "Java $java_version detected in '$(echo $HOME)/.adoptium_java/jre$(echo $java_version)/bin/java.' will be used."
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else
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java_version=false
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fi
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else
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java_version=false
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fi
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}
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# Get the system Java version
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function check_java_exec {
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# Check if java is installed
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if ! command -v java &> /dev/null
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then
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java_version=false
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fi
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# If java is installed, get the version (the java_version won't be 0)
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if [[ $java_version != false ]]; then
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# Get the current Java version and extract the build number
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java_version=$(java -version 2>&1 | awk -F '"' '/version/ {print $2}' | awk -F '.' '{print $1}')
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fi
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}
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# Get the required Java version for the Minecraft version
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# For version 1.8 to 1.11 use java 8
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# For version 1.12 to 1.16.4 use java 11
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# For version 1.16.5 use java 16
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# For version 1.17.1 to 1.18.1+ use java 17
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function check_java {
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# Check if java is installed
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if ! command -v java &> /dev/null
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then
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>&2 echo "Error: Java is not installed"
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java_version="0"
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fi
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function get_required_java {
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# Extract the middle number of the Minecraft version
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minecraft_middle=$(echo "$version" | awk -F '.' '{print $2}')
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# If java is installed, get the version (the java_version won't be 0)
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if [[ $java_version != "0" ]]; then
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# Get the current Java version and extract the build number
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java_version=$(java -version 2>&1 | awk -F '"' '/version/ {print $2}' | awk -F '.' '{print $1}')
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echo "Java $java_version is installed."
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fi
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# Check if the correct version of java is installed
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# Get the java version for the defined server version
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if (( 8 <= minecraft_middle && minecraft_middle <= 11 )); then
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if ! [[ $java_version -eq 8 ]]; then
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>&2 echo "Java 8 is required for Minecraft version $select_version. Please install Java 8."
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if [[ $java_version == 0 ]]; then
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exit 3
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fi
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ask_continue
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required_java=8
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fi
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elif (( 12 <= minecraft_middle && minecraft_middle <= 16 )); then
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if ! [[ $java_version -eq 11 ]]; then
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>&2 echo "Java 11 is required for Minecraft version $select_version. Please install Java 11."
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if [[ $java_version == 0 ]]; then
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exit 3
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fi
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ask_continue
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required_java=11
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fi
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elif (( minecraft_middle == 17 )); then
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if ! [[ $java_version -eq 16 ]]; then
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>&2 echo "Java 16 is required for Minecraft version $select_version. Please install Java 16."
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if [[ $java_version == 0 ]]; then
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exit 3
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fi
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ask_continue
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required_java=16
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fi
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elif (( 18 <= minecraft_middle )); then
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if ! [[ $java_version -eq 17 ]]; then
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>&2 echo "Java 17 is required for Minecraft version $select_version. Please install Java 17."
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if [[ $java_version == 0 ]]; then
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exit 3
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fi
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ask_continue
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required_java=17
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fi
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else
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>&2 echo "Unsupported Minecraft version $select_version."
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if [[ $java_version == 0 ]]; then
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exit 3
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fi
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ask_continue
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fi
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}
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# Check host architecture
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function get_os_arch {
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if [[ $(uname -m) == "x86_64" ]]; then
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arch="x64"
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elif [[ $(uname -m) == "aarch64" ]]; then
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arch="aarch64"
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else
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>&2 echo "Unsupported architecture $(uname -m)."
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>&2 echo "Please install Java $required_java manually."
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exit 3
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fi
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}
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# Download openjdk jre
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function download_jre {
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# Check if .java folder exists
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if ! [[ -d "$(echo $HOME)/.adoptium_java" ]]; then
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echo "Creating $(echo $HOME)/.adoptium_java folder"
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mkdir "$(echo $HOME)/.adoptium_java"
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fi
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# Download the correct version of Java
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if [[ $required_java == "8" ]]; then
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echo "Downloading Adoptium JRE 8"
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curl -L -o java.tar.gz "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u362-b09/OpenJDK8U-jre_$(echo $arch)_linux_hotspot_8u362b09.tar.gz"
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echo "Extracting Java 8"
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tar -xzf java.tar.gz
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echo "Moving Java 8 to $(echo $HOME)/.adoptium_java/jre8"
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mv jdk8u362-b09-jre "$(echo $HOME)/.adoptium_java/jre8"
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echo "Removing temporary files"
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rm java.tar.gz
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elif [[ $required_java == "11" ]]; then
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echo "Downloading Adoptium JRE 11"
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curl -L -o java.tar.gz "https://github.com/adoptium/temurin11-binaries/releases/download/jdk-11.0.18%2B10/OpenJDK11U-jre_$(echo $arch)_linux_hotspot_11.0.18_10.tar.gz"
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echo "Extracting Java 11"
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tar -xzf java.tar.gz
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echo "Moving Java 11 to $(echo $HOME)/.adoptium_java/jre11"
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mv jdk-11.0.18+10-jre "$(echo $HOME)/.adoptium_java/jre11"
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echo "Removing temporary files"
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rm java.tar.gz
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elif [[ $required_java == "16" ]]; then
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echo "Downloading Java 16"
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curl -L -o java.tar.gz "https://github.com/adoptium/temurin11-binaries/releases/download/jdk-11.0.18%2B10/OpenJDK11U-jre_$(echo $arch)_linux_hotspot_16.0.2_7.tar.gz"
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echo "Extracting Java 16"
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tar -xzf java.tar.gz
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echo "Moving Java 16 to $(echo $HOME)/.adoptium_java/jre16"
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mv jdk-16.0.2+7-jre "$(echo $HOME)/.adoptium_java/jre16"
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echo "Removing temporary files"
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rm java.tar.gz
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elif [[ $required_java == "17" ]]; then
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echo "Downloading Java 17"
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curl -L -o java.tar.gz "https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.6%2B10/OpenJDK17U-jre_$(echo $arch)_linux_hotspot_17.0.6_10.tar.gz"
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echo "Extracting Java 17"
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tar -xzf java.tar.gz
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echo "Moving Java 17 to $(echo $HOME)/.adoptium_java/jre17"
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mv jdk-17.0.6+10-jre "$(echo $HOME)/.adoptium_java/jre17"
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echo "Removing temporary files"
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rm java.tar.gz
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fi
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}
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3
msman.sh
3
msman.sh
@ -1,4 +1,5 @@
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#!/bin/bash
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set -e
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#############################################################################################################
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# Auto Update & Run PaperMC server script #
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# by jiriks74 #
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@ -385,7 +386,7 @@ function main {
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check_version_valid
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# Check if the correct java version is installed
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check_java
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setup_java
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# Check if the server is up to date and if not, update it
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check_and_update
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