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+#!/bin/bash
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+# LinuxGSM update_minecraft_bedrock.sh function
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+# Author: Daniel Gibbs
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+# Website: https://linuxgsm.com
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+# Description: Handles updating of Minecraft Bedrock servers.
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+
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+local commandname="UPDATE"
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+local commandaction="Update"
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+local function_selfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
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+
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+fn_update_minecraft_dl(){
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+ latestmcbuildurl=$(curl -s "https://www.minecraft.net/en-us/download/server/bedrock/" | grep -o 'https://minecraft.azureedge.net/bin-linux/[^"]*zip')
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+ fn_fetch_file "${latestmcbuildurl}" "${tmpdir}" "bedrock_server.${remotebuild}.zip"
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+ echo -e "Extracting to ${serverfiles}...\c"
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+ if [ "${installer}" == "1" ]; then
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+ unzip -oq "${tmpdir}/bedrock_server.${remotebuild}.zip" -x "server.properties" -d "${serverfiles}"
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+ else
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+ unzip -oq "${tmpdir}/bedrock_server.${remotebuild}.zip" -x "permissions.json" "server.properties" "whitelist.json" -d "${serverfiles}"
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+ fi
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+ local exitcode=$?
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+ if [ "${exitcode}" == "0" ]; then
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+ fn_print_ok_eol_nl
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+ fn_script_log_pass "Extracting to ${serverfiles}"
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+ chmod u+x "${serverfiles}/bedrock_server"
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+ fn_clear_tmp
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+ else
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+ fn_print_fail_eol_nl
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+ fn_script_log_fatal "Extracting to ${serverfiles}"
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+ core_exit.sh
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+ fi
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+}
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+
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+fn_update_minecraft_localbuild(){
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+ # Gets local build info.
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+ fn_print_dots "Checking for update: ${remotelocation}: checking local build"
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+ # Uses log file to gather info.
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+ # Log is generated and cleared on startup but filled on shutdown.
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+
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+ localbuild=$(grep Version $(ls -tr "${consolelogdir}"/* 2>/dev/null) | tail -1 | sed 's/.*Version //')
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+
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+ if [ -z "${localbuild}" ]; then
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+ fn_print_error "Checking for update: ${remotelocation}: checking local build"
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+ fn_print_error_nl "Checking for update: ${remotelocation}: checking local build: no log files containing version info"
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+ fn_script_log_error "No log files containing version info"
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+ fn_print_info_nl "Checking for update: ${remotelocation}: checking local build: forcing server restart"
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+ fn_script_log_info "Forcing server restart"
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+
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+ check_status.sh
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+ if [ "${status}" != "0" ]; then
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+ exitbypass=1
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+ command_stop.sh
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+ else
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+ exitbypass=1
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+ command_start.sh
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+ sleep 3
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+ exitbypass=1
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+ command_stop.sh
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+ fi
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+ fi
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+
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+ if [ -z "${localbuild}" ]; then
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+ localbuild=$(grep Version $(ls -tr "${consolelogdir}"/* 2>/dev/null) | tail -1 | sed 's/.*Version //')
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+ fi
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+
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+ if [ -z "${localbuild}" ]; then
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+ localbuild="0"
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+ fn_print_error "Checking for update: ${remotelocation}: waiting for local build: missing local build info"
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+ fn_script_log_error "Missing local build info"
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+ fn_script_log_error "Set localbuild to 0"
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+ else
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+ fn_print_ok "Checking for update: ${remotelocation}: checking local build"
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+ fn_script_log_pass "Checking local build"
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+ fi
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+}
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+
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+fn_update_minecraft_remotebuild(){
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+ # Gets remote build info.
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+ remotebuild=$(curl -s "https://www.minecraft.net/en-us/download/server/bedrock/" | grep -o 'https://minecraft.azureedge.net/bin-linux/[^"]*' | sed 's/.*\///' | grep -Eo "[.0-9]+[0-9]")
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+ if [ "${installer}" != "1" ]; then
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+ fn_print_dots "Checking for update: ${remotelocation}: checking remote build"
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+ # Checks if remotebuild variable has been set.
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+ if [ -z "${remotebuild}" ]||[ "${remotebuild}" == "null" ]; then
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+ fn_print_fail "Checking for update: ${remotelocation}: checking remote build"
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+ fn_script_log_fatal "Checking remote build"
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+ core_exit.sh
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+ else
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+ fn_print_ok "Checking for update: ${remotelocation}: checking remote build"
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+ fn_script_log_pass "Checking remote build"
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+ fi
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+ else
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+ # Checks if remotebuild variable has been set.
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+ if [ -z "${remotebuild}" ]||[ "${remotebuild}" == "null" ]; then
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+ fn_print_failure "Unable to get remote build"
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+ fn_script_log_fatal "Unable to get remote build"
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+ core_exit.sh
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+ fi
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+ fi
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+}
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+
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+fn_update_minecraft_compare(){
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+ # Removes dots so if statement can compare version numbers.
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+ fn_print_dots "Checking for update: ${remotelocation}"
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+ localbuilddigit=$(echo -e "${localbuild}" | tr -cd '[:digit:]')
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+ remotebuilddigit=$(echo -e "${remotebuild}" | tr -cd '[:digit:]')
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+ if [ "${localbuilddigit}" -ne "${remotebuilddigit}" ]||[ "${forceupdate}" == "1" ]; then
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+ fn_print_ok_nl "Checking for update: ${remotelocation}"
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+ echo -en "\n"
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+ echo -e "Update available"
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+ echo -e "* Local build: ${red}${localbuild}${default}"
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+ echo -e "* Remote build: ${green}${remotebuild}${default}"
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+ fn_script_log_info "Update available"
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+ fn_script_log_info "Local build: ${localbuild}"
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+ fn_script_log_info "Remote build: ${remotebuild}"
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+ fn_script_log_info "${localbuild} > ${remotebuild}"
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+ fn_sleep_time
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+ echo -en "\n"
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+ echo -en "applying update.\r"
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+ sleep 1
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+ echo -en "applying update..\r"
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+ sleep 1
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+ echo -en "applying update...\r"
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+ sleep 1
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+ echo -en "\n"
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+
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+ unset updateonstart
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+
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+ check_status.sh
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+ # If server stopped.
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+ if [ "${status}" == "0" ]; then
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+ exitbypass=1
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+ fn_update_minecraft_dl
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+ exitbypass=1
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+ command_start.sh
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+ exitbypass=1
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+ command_stop.sh
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+ # If server started.
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+ else
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+ exitbypass=1
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+ command_stop.sh
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+ exitbypass=1
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+ fn_update_minecraft_dl
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+ exitbypass=1
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+ command_start.sh
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+ fi
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+ alert="update"
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+ alert.sh
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+ else
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+ fn_print_ok_nl "Checking for update: ${remotelocation}"
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+ echo -en "\n"
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+ echo -e "No update available"
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+ echo -e "* Local build: ${green}${localbuild}${default}"
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+ echo -e "* Remote build: ${green}${remotebuild}${default}"
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+ fn_script_log_info "No update available"
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+ fn_script_log_info "Local build: ${localbuild}"
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+ fn_script_log_info "Remote build: ${remotebuild}"
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+ fi
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+}
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+
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+# The location where the builds are checked and downloaded.
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+remotelocation="minecraft.net"
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+
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+if [ "${installer}" == "1" ]; then
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+ fn_update_minecraft_remotebuild
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+ fn_update_minecraft_dl
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+else
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+ check_status.sh
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+ fn_print_dots "Checking for update: ${remotelocation}"
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+ fn_script_log_info "Checking for update: ${remotelocation}"
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+ fn_update_minecraft_localbuild
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+ fn_update_minecraft_remotebuild
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+ fn_update_minecraft_compare
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+fi
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Daniel Gibbs