update.sh

#!/bin/bash

DIR="$(dirname "${BASH_SOURCE[0]}")"  # Get the directory name
DIR="$(realpath "${DIR}")"

# Check if server is already started
if screen -list | grep -q "Ziserver"; then
    echo "服务器已经在运行中了！ 输入 screen -r Ziserver 来打开它。"
    exit 1
fi

# Check if network interfaces are up
NetworkChecks=0
DefaultRoute=$(route -n | awk '$4 == "UG" {print $2}')
while [ -z "$DefaultRoute" ]; do
    echo "当前网络未链接，将在1秒后重试。";
    sleep 1;
    DefaultRoute=$(route -n | awk '$4 == "UG" {print $2}')
    NetworkChecks=$((NetworkChecks+1))
    if [ $NetworkChecks -gt 20 ]; then
        echo "等待网络超时 - 服务器将在无网络情况下启动..."
        break
    fi
done

# Change directory to server directory
cd "$DIR"

# Retrieve latest version of Minecraft Bedrock dedicated server
echo "正在检查Minecraft基岩服务器的最新版本..."
#
# Test internet connectivity first
wget --quiet https://minecraft.net/en-us/download/server/bedrock/
if [ "$?" != 0 ]; then
    echo "未能连接至更新服务器（可能因为无网络连接）,跳过更新步骤..."
else
# Download server index.html to check latest version
    if [ ! -d "downloads" ]; then
        mkdir downloads
    fi
    wget -O downloads/version.html https://minecraft.net/en-us/download/server/bedrock/
    DownloadURL=$(grep -o 'https://minecraft.azureedge.net/bin-linux/[^"]*' downloads/version.html)
    DownloadFile=$(echo "$DownloadURL" | sed 's#.*/##')

# Download latest version of Minecraft Bedrock dedicated server if a new one is available
    if [ -f "downloads/$DownloadFile" ]
    then
        echo "Minecraft基岩服务器已经是最新版..."
    else
        echo "检测到新版本 $DownloadFile ， 正在更新..."
        wget -O "downloads/$DownloadFile" "$DownloadURL"
        if [ ! -d "server.properties" ]; then
            unzip -o "downloads/$DownloadFile"
            chmod 777 bedrock_server
        else
        unzip -o "downloads/$DownloadFile" -x "*server.properties*" "*permissions.json*" "*whitelist.json*"
        fi
    fi
fi