feat(luanti): add Luanti server support

lgsm/config-default/config-lgsm/luantiserver/_default.cfg

@@ -0,0 +1,201 @@
+##################################
+######## Default Settings ########
+##################################
+# DO NOT EDIT, ANY CHANGES WILL BE OVERWRITTEN!
+# Copy settings from here and use them in either:
+# common.cfg - applies settings to every instance.
+# [instance].cfg - applies settings to a specific instance.
+
+#### Game Server Settings ####
+
+## Predefined Parameters | https://docs.linuxgsm.com/configuration/start-parameters
+ip="0.0.0.0"
+port="30000"
+gameid="minetest"
+worldname="world"
+
+## Server Parameters | https://docs.linuxgsm.com/configuration/start-parameters#additional-parameters
+startparameters="--config ${servercfgfullpath} --world ${serverfiles}/worlds/${worldname} --gameid ${gameid} --port ${port} --logfile ${gamelogdir}/${selfname}-game.log --terminal"
+
+#### LinuxGSM Settings ####
+
+## LinuxGSM Stats
+# Send useful stats to LinuxGSM developers.
+# https://docs.linuxgsm.com/configuration/linuxgsm-stats
+# (on|off)
+stats="off"
+
+## Notification Alerts
+# (on|off)
+
+# Display IP | https://docs.linuxgsm.com/alerts#display-ip
+displayip=""
+
+# More info | https://docs.linuxgsm.com/alerts#more-info
+postalert="off"
+
+# Alert on Start/Stop/Restart
+statusalert="off"
+
+# Discord Alerts | https://docs.linuxgsm.com/alerts/discord
+discordalert="off"
+discordwebhook="webhook"
+
+# Email Alerts | https://docs.linuxgsm.com/alerts/email
+emailalert="off"
+email="email@example.com"
+emailfrom=""
+
+# Gotify Alerts | https://docs.linuxgsm.com/alerts/gotify
+gotifyalert="off"
+gotifytoken="token"
+gotifywebhook="webhook"
+
+# IFTTT Alerts | https://docs.linuxgsm.com/alerts/ifttt
+iftttalert="off"
+ifttttoken="accesstoken"
+iftttevent="linuxgsm_alert"
+
+# ntfy Alerts | https://docs.linuxgsm.com/alerts/ntfy
+ntfyalert="off"
+ntfytopic="LinuxGSM"
+ntfyserver="https://ntfy.sh"
+ntfytoken=""
+ntfyusername=""
+ntfypassword=""
+ntfypriority=""
+ntfytags=""
+
+# Matrix Alerts | https://docs.linuxgsm.com/alerts/matrix
+matrixalert="off"
+matrixhomeserver="matrix.org"
+matrixtoken="accesstoken"
+matrixroom=""
+
+# Pushbullet Alerts | https://docs.linuxgsm.com/alerts/pushbullet
+pushbulletalert="off"
+pushbullettoken="accesstoken"
+channeltag=""
+
+# Pushover Alerts | https://docs.linuxgsm.com/alerts/pushover
+pushoveralert="off"
+pushovertoken="accesstoken"
+pushoveruserkey="userkey"
+
+# Rocket.Chat Alerts | https://docs.linuxgsm.com/alerts/rocket.chat
+rocketchatalert="off"
+rocketchatwebhook="webhook"
+
+# Slack Alerts | https://docs.linuxgsm.com/alerts/slack
+slackalert="off"
+slackwebhook="webhook"
+
+# Telegram Alerts | https://docs.linuxgsm.com/alerts/telegram
+# You can add a custom cURL string eg proxy (useful in Russia) in "curlcustomstring".
+# For example "--socks5 ipaddr:port" for socks5 proxy see more in "curl --help all".
+telegramapi="api.telegram.org"
+telegramalert="off"
+telegramtoken="accesstoken"
+telegramchatid=""
+telegramthreadid=""
+telegramsilentnotification="false"
+curlcustomstring=""
+
+## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
+stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
+
+## Player Warnings | https://docs.linuxgsm.com/features/player-warnings
+# Minutes to warn players in-game before a stop, restart or update. 0 to disable.
+# e.g. 15 warns at 15, 10, 5, 3 and 1 minutes.
+warnplayerstimer="0"
+
+## Updating | https://docs.linuxgsm.com/commands/update
+updateonstart="off"
+
+## Backup | https://docs.linuxgsm.com/commands/backup
+maxbackups="4"
+maxbackupdays="30"
+stoponbackup="on"
+
+## Logging | https://docs.linuxgsm.com/features/logging
+consolelogging="on"
+logdays="7"
+
+## Monitor | https://docs.linuxgsm.com/commands/monitor
+# Query delay time
+querydelay="1"
+
+## ANSI Colors | https://docs.linuxgsm.com/features/ansi-colors
+ansi="on"
+
+#### Advanced Settings ####
+
+## Message Display Time | https://docs.linuxgsm.com/features/message-display-time
+sleeptime="0.5"
+
+## Stop Mode | https://docs.linuxgsm.com/features/stop-mode
+# 1: tmux kill
+# 2: CTRL+c
+# 3: quit
+# 4: quit 120s
+# 5: stop
+# 6: q
+# 7: exit
+# 8: 7 Days to Die
+# 9: GoldSrc
+# 10: Avorion
+# 11: end
+stopmode="2"
+
+## Query mode
+# 1: session only
+# 2: gamedig (gsquery fallback)
+# 3: gamedig
+# 4: gsquery
+# 5: tcp
+querymode="1"
+querytype=""
+
+## Console type
+consoleverbose="yes"
+consoleinteract="yes"
+
+## Game Server Details
+# Do not edit
+gamename="Luanti"
+engine="luanti"
+glibc="2.31"
+
+#### Directories ####
+# Edit with care
+
+## Game Server Directories
+systemdir="${serverfiles}"
+executabledir="${serverfiles}/bin"
+executable="./luantiserver"
+servercfgdir="${systemdir}"
+servercfg="${selfname}.cfg"
+servercfgdefault="minetest.conf.example"
+servercfgfullpath="${servercfgdir}/${servercfg}"
+
+## Backup Directory
+backupdir="${lgsmdir}/backup"
+
+## Logging Directories
+[ -n "${LGSM_LOGDIR}" ] && logdir="${LGSM_LOGDIR}" || logdir="${rootdir}/log"
+gamelogdir="${logdir}/server"
+lgsmlogdir="${logdir}/script"
+consolelogdir="${logdir}/console"
+lgsmlog="${lgsmlogdir}/${selfname}-script.log"
+consolelog="${consolelogdir}/${selfname}-console.log"
+alertlog="${lgsmlogdir}/${selfname}-alert.log"
+postdetailslog="${lgsmlogdir}/${selfname}-postdetails.log"
+
+## Logs Naming
+lgsmlogdate="${lgsmlogdir}/${selfname}-script-$(date '+%Y-%m-%d-%H:%M:%S').log"
+consolelogdate="${consolelogdir}/${selfname}-console-$(date '+%Y-%m-%d-%H:%M:%S').log"
+
+## Log Parameters
+logtimestamp="off"
+logtimestampformat="%Y-%m-%d %H:%M:%S"

lgsm/data/almalinux-8.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-21-openjdk
 mcb,libnsl
 mcv

lgsm/data/almalinux-9.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-25-openjdk
 mcb,libnsl
 mcv

lgsm/data/centos-7.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-21-openjdk
 mcb,libnsl
 mcv

lgsm/data/centos-8.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-21-openjdk
 mcb,libnsl
 mcv

lgsm/data/centos-9.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-25-openjdk
 mcb,libnsl
 mcv

lgsm/data/debian-10.csv

@@ -68,6 +68,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-11-jre
 mcb
 mcv

lgsm/data/debian-11.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-17-jre
 mcb
 mcv

lgsm/data/debian-12.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-17-jre
 mcb
 mcv

lgsm/data/debian-13.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4t64,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-25-jre
 mcb
 mcv

lgsm/data/debian-9.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-8-jre
 mcb
 mcv

lgsm/data/gameicons-LICENSE.md

@@ -0,0 +1,3 @@
+# Game icon attribution
+
+- Luanti: [luanti-icon.png](gameicons/luanti-icon.png), by erle, licensed under [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/). Copied without modification from [Luanti 5.17.0](https://github.com/luanti-org/luanti/blob/5.17.0/misc/luanti-icon-24x24.png); see the [upstream license and attribution](https://github.com/luanti-org/luanti/blob/5.17.0/LICENSE.txt).

lgsm/data/rhel-7.csv

@@ -9,6 +9,7 @@ armar,libcurl,openssl11-libs
 ats,libatomic
 av
 bb
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 pw
 bb2,libcurl.i686
 bd

lgsm/data/rhel-8.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-21-openjdk
 mcb,libnsl
 mcv

lgsm/data/rhel-9.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-25-openjdk
 mcb,libnsl
 mcv

lgsm/data/rocky-8.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-21-openjdk
 mcb,libnsl
 mcv

lgsm/data/rocky-9.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl,libstdc++,libzstd,ncurses-libs,sqlite-libs,zlib
 mc,java-25-openjdk
 mcb,libnsl
 mcv

lgsm/data/serverlist.csv

@@ -68,6 +68,7 @@ kf,kfserver,Killing Floor,ubuntu-26.04
 kf2,kf2server,Killing Floor 2,ubuntu-26.04
 l4d,l4dserver,Left 4 Dead,ubuntu-26.04
 l4d2,l4d2server,Left 4 Dead 2,ubuntu-26.04
+luanti,luantiserver,Luanti,ubuntu-26.04
 mc,mcserver,Minecraft,ubuntu-26.04
 mcb,mcbserver,Minecraft Bedrock,ubuntu-26.04
 mcv,mcvserver,Military Conflict: Vietnam,ubuntu-26.04

lgsm/data/ubuntu-16.04.csv

@@ -9,6 +9,7 @@ armar,libcurl4
 ats,libatomic1
 av
 bb
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 pw
 bb2,libcurl4-gnutls-dev:i386
 bd

lgsm/data/ubuntu-18.04.csv

@@ -8,6 +8,7 @@ arma3
 armar,libcurl4
 ats,libatomic1
 av
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 pw
 bb
 bb2,libcurl4-gnutls-dev:i386

lgsm/data/ubuntu-20.04.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-21-jre
 mcb
 mcv

lgsm/data/ubuntu-22.04.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-25-jre
 mcb
 mcv

lgsm/data/ubuntu-23.04.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-21-jre
 mcb
 mcv

lgsm/data/ubuntu-23.10.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-21-jre
 mcb
 mcv

lgsm/data/ubuntu-24.04.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4t64,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-25-jre
 mcb
 mcv

lgsm/data/ubuntu-26.04.csv

@@ -69,6 +69,7 @@ kf
 kf2
 l4d
 l4d2
+luanti,libcurl4t64,libncursesw6,libsqlite3-0,libstdc++6,libzstd1,zlib1g
 mc,openjdk-25-jre
 mcb
 mcv

lgsm/modules/command_check_update.sh

@@ -32,6 +32,8 @@ elif [ "${shortname}" == "jk2" ]; then
 	update_jk2.sh
 elif [ "${shortname}" == "jk3" ]; then
 	update_jk3.sh
+elif [ "${shortname}" == "luanti" ]; then
+	update_luanti.sh
 elif [ "${shortname}" == "vints" ]; then
 	update_vints.sh
 elif [ "${shortname}" == "bb" ]; then

lgsm/modules/command_update.sh

@@ -73,6 +73,8 @@ elif [ "${shortname}" == "jk2" ]; then
 	update_jk2.sh
 elif [ "${shortname}" == "jk3" ]; then
 	update_jk3.sh
+elif [ "${shortname}" == "luanti" ]; then
+	update_luanti.sh
 elif [ "${shortname}" == "vints" ]; then
 	update_vints.sh
 elif [ "${shortname}" == "bb" ]; then

lgsm/modules/core_modules.sh

@@ -787,6 +787,11 @@ update_bb.sh() {
 	fn_fetch_module
 }
 
+update_luanti.sh() {
+	modulefile="${FUNCNAME[0]}"
+	fn_fetch_module
+}
+
 update_vints.sh() {
 	modulefile="${FUNCNAME[0]}"
 	fn_fetch_module

lgsm/modules/info_game.sh

@@ -2292,6 +2292,22 @@ fn_info_game_vh() {
 	servername="${servername:-"NOT SET"}"
 }
 
+# Config Type: Key Value Pairs (Equals Delimited)
+# Comment: #
+fn_info_game_luanti() {
+	if [ -f "${servercfgfullpath}" ]; then
+		fn_info_game_keyvalue_pairs_equals "servername" "server_name"
+		fn_info_game_keyvalue_pairs_equals "serverpassword" "default_password"
+		fn_info_game_keyvalue_pairs_equals "maxplayers" "max_users"
+		fn_info_game_keyvalue_pairs_equals "configip" "bind_address"
+	fi
+	servername="${servername:-"NOT SET"}"
+	serverpassword="${serverpassword:-"NOT SET"}"
+	maxplayers="${maxplayers:-"20"}"
+	configip="${configip:-"0.0.0.0"}"
+	queryport="${port}"
+}
+
 # Config Type: json
 # Parameters: false
 # Comment: // or /* */
@@ -2609,6 +2625,8 @@ elif [ "${shortname}" == "ut99" ]; then
 	fn_info_game_ut99
 elif [ "${shortname}" == "vh" ]; then
 	fn_info_game_vh
+elif [ "${shortname}" == "luanti" ]; then
+	fn_info_game_luanti
 elif [ "${shortname}" == "vints" ]; then
 	fn_info_game_vints
 elif [ "${shortname}" == "vpmc" ]; then

lgsm/modules/info_messages.sh

@@ -737,7 +737,7 @@ fn_info_messages_ports_edit() {
 		fi
 	done
 	# engines/games that require editing the start parameters.
-	local ports_edit_array=("av" "ce" "ck" "col" "cs2" "fctr" "goldsrc" "hcu" "hw" "hyt" "iw3.0" "ioquake3" "pw" "qfusion" "rsdw" "rust" "scpsl" "sf" "sol" "spark" "source" "unreal4" "arma3" "dayz" "unt" "vh")
+	local ports_edit_array=("av" "ce" "ck" "col" "cs2" "fctr" "goldsrc" "hcu" "hw" "hyt" "luanti" "iw3.0" "ioquake3" "pw" "qfusion" "rsdw" "rust" "scpsl" "sf" "sol" "spark" "source" "unreal4" "arma3" "dayz" "unt" "vh")
 	for port_edit in "${ports_edit_array[@]}"; do
 		if [ "${engine}" == "${port_edit}" ] || [ "${gamename}" == "${port_edit}" ] || [ "${shortname}" == "${port_edit}" ]; then
 			startparameterslocation="${configdirserver}"
@@ -1812,6 +1812,13 @@ fn_info_messages_vh() {
 	} | column -s $'\t' -t
 }
 
+fn_info_messages_luanti() {
+	{
+		fn_port "header"
+		fn_port "Game" port udp
+	} | column -s $'\t' -t
+}
+
 fn_info_messages_vints() {
 	{
 		fn_port "header"
@@ -2028,6 +2035,8 @@ fn_info_messages_select_engine() {
 		fn_info_messages_unt
 	elif [ "${shortname}" == "vh" ]; then
 		fn_info_messages_vh
+	elif [ "${shortname}" == "luanti" ]; then
+		fn_info_messages_luanti
 	elif [ "${shortname}" == "vints" ]; then
 		fn_info_messages_vints
 	elif [ "${shortname}" == "rust" ]; then

lgsm/modules/install_config.sh

@@ -256,7 +256,20 @@ fn_list_config_locations() {
 	echo -e "Config documentation: ${italic}https://docs.linuxgsm.com/configuration${default}"
 }
 
-if [ "${shortname}" == "sdtd" ]; then
+if [ "${shortname}" == "luanti" ]; then
+	fn_check_cfgdir
+	if [ ! -e "${servercfgfullpath}" ] && [ ! -L "${servercfgfullpath}" ]; then
+		cp "${serverfiles}/${servercfgdefault}" "${servercfgfullpath}"
+		{
+			echo "server_name = LinuxGSM"
+			echo "name = admin"
+			echo "server_announce = false"
+			echo "bind_address = ${ip}"
+			echo "max_users = 20"
+		} >> "${servercfgfullpath}"
+	fi
+	fn_list_config_locations
+elif [ "${shortname}" == "sdtd" ]; then
 	fn_default_config_local
 	fn_list_config_locations
 elif [ "${shortname}" == "ac" ]; then

lgsm/modules/install_server_files.sh

@@ -263,6 +263,8 @@ elif [ "${shortname}" == "jk2" ]; then
 	update_jk2.sh
 elif [ "${shortname}" == "jk3" ]; then
 	update_jk3.sh
+elif [ "${shortname}" == "luanti" ]; then
+	update_luanti.sh
 elif [ "${shortname}" == "vints" ]; then
 	update_vints.sh
 elif [ "${shortname}" == "bb" ]; then

lgsm/modules/update_luanti.sh

@@ -0,0 +1,162 @@
+#!/bin/bash
+# LinuxGSM update_luanti.sh module
+# Author: Daniel Gibbs
+# Contributors: https://linuxgsm.com/contrib
+# Website: https://linuxgsm.com
+# Description: Handles updating of Luanti servers.
+
+moduleselfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
+
+fn_update_dl() {
+	fn_fetch_file "${remotebuildurl}" "" "" "" "${tmpdir}" "${remotebuildfilename}" "nochmodx" "norun" "force" "${remotebuildhash}"
+	fn_dl_extract "${tmpdir}" "${remotebuildfilename}" "${serverfiles}" "luanti"
+	if [ "${firstcommandname}" == "INSTALL" ] && [ ! -d "${serverfiles}/games/minetest" ]; then
+		fn_fetch_file "https://github.com/luanti-org/minetest_game/archive/refs/tags/5.8.0.tar.gz" "" "" "" "${tmpdir}" "minetest_game-5.8.0.tar.gz" "nochmodx" "norun" "force" "33a3bb43b08497a0bdb2f49f140a2829e582d5c16c0ad52be1595c803f706912"
+		mkdir -p "${serverfiles}/games/minetest"
+		fn_dl_extract "${tmpdir}" "minetest_game-5.8.0.tar.gz" "${serverfiles}/games/minetest" "minetest_game-5.8.0"
+	fi
+	fn_clear_tmp
+}
+
+fn_update_localbuild() {
+	local mode="${1:-}"
+	if [ "${mode}" != "silent" ]; then
+		fn_print_dots "Checking local build: ${remotelocation}"
+	fi
+	localbuild=$("${executabledir}/${executable#./}" --version 2> /dev/null | awk '/^Luanti / {print $2; exit}')
+	localbuild="${localbuild:-0}"
+	if [ "${mode}" != "silent" ]; then
+		fn_print_ok "Checking local build: ${remotelocation}"
+	fi
+}
+
+fn_update_remotebuild() {
+	case "$(uname -m)" in
+		x86_64) luantiarch="x86_64" ;;
+		aarch64) luantiarch="aarch64" ;;
+		*)
+			fn_print_fail_nl "Unsupported Luanti architecture: $(uname -m)"
+			fn_script_log_fail "Unsupported Luanti architecture: $(uname -m)"
+			core_exit.sh
+			;;
+	esac
+	apiurl="https://api.github.com/repos/rollerozxa/luantiserver/releases/latest"
+	remotebuildresponse=$(curl -fsSL --retry 3 "${apiurl}")
+	remotebuild=$(echo "${remotebuildresponse}" | jq -r '.tag_name // empty')
+	remotebuildfilename="luantiserver-${remotebuild}-${luantiarch}.tar.gz"
+	remotebuildurl=$(echo "${remotebuildresponse}" | jq -r --arg name "${remotebuildfilename}" '.assets[]? | select(.name == $name) | .browser_download_url')
+	remotebuildhash=$(echo "${remotebuildresponse}" | jq -r --arg name "${remotebuildfilename}" '.assets[]? | select(.name == $name) | .digest // empty' | sed 's/^sha256://')
+	if [ -z "${remotebuild}" ] || [ -z "${remotebuildurl}" ] || [[ ! "${remotebuildhash}" =~ ^[0-9a-f]{64}$ ]]; then
+		fn_print_fail_nl "Unable to get Luanti release, download URL or SHA256 checksum"
+		fn_script_log_fail "Unable to get Luanti release, download URL or SHA256 checksum"
+		core_exit.sh
+	fi
+}
+
+fn_update_compare() {
+	fn_print_dots "Checking for update: ${remotelocation}"
+	# Update has been found or force update.
+	if [ "${localbuild}" != "${remotebuild}" ] || [ "${forceupdate}" == "1" ]; then
+		# Create update lockfile.
+		date '+%s' > "${lockdir:?}/update.lock"
+		fn_print_ok_nl "Checking for update: ${remotelocation}"
+		fn_print "\n"
+		fn_print_nl "${bold}${underline}Update${default} available"
+		fn_print_nl "* Local build: ${red}${localbuild}${default}"
+		fn_print_nl "* Remote build: ${green}${remotebuild}${default}"
+		if [ -n "${branch}" ]; then
+			fn_print_nl "* Branch: ${branch}"
+		fi
+		if [ -f "${rootdir}/.dev-debug" ]; then
+			fn_print_nl "Remote build info"
+			fn_print_nl "* apiurl: ${apiurl}"
+			fn_print_nl "* remotebuildfilename: ${remotebuildfilename}"
+			fn_print_nl "* remotebuildurl: ${remotebuildurl}"
+			fn_print_nl "* remotebuild: ${remotebuild}"
+		fi
+		fn_print "\n"
+		fn_script_log_info "Update available"
+		fn_script_log_info "Local build: ${localbuild}"
+		fn_script_log_info "Remote build: ${remotebuild}"
+		if [ -n "${branch}" ]; then
+			fn_script_log_info "Branch: ${branch}"
+		fi
+		fn_script_log_info "${localbuild} > ${remotebuild}"
+
+		if [ "${commandname}" == "UPDATE" ]; then
+			# Keep track of the build before updating for alert purposes.
+			previousbuild="${localbuild}"
+			unset updateonstart
+			fn_update_apply fn_update_dl
+			if [ "${updatestatus}" == "0" ] && [ "${localbuild}" == "0" ]; then
+				exitbypass=1
+				command_start.sh
+				fn_firstcommand_reset
+				exitbypass=1
+				fn_sleep_time_5
+				command_stop.sh
+				fn_firstcommand_reset
+			fi
+			# Refresh local build value after update (silent) so alerts show new version.
+			fn_update_localbuild silent
+			# Verify the update applied correctly unless forced update to same version.
+			if [ "${localbuild}" != "${remotebuild}" ]; then
+				# If forced update and version unchanged treat as acceptable; otherwise failure.
+				if [ "${forceupdate}" != "1" ] || [ "${previousbuild}" = "${localbuild}" ]; then
+					fn_script_log_error "Update verification failed: expected ${remotebuild}, got ${localbuild}"
+					fn_print_fail_nl "Update verification failed: expected ${remotebuild}, got ${localbuild}"
+					updatefailureexpected="${remotebuild}"
+					updatefailuregot="${localbuild}"
+					alert="update-failed"
+					alert.sh
+					core_exit.sh
+				fi
+			else
+				fn_script_log_pass "Update verification success: ${previousbuild} -> ${localbuild}"
+			fi
+			unset exitbypass
+			alert="update"
+		elif [ "${commandname}" == "CHECK-UPDATE" ]; then
+			alert="check-update"
+		fi
+		alert.sh
+	else
+		fn_print_ok_nl "Checking for update: ${remotelocation}"
+		fn_print "\n"
+		fn_print_nl "${bold}${underline}No update${default} available"
+		fn_print_nl "* Local build: ${green}${localbuild}${default}"
+		fn_print_nl "* Remote build: ${green}${remotebuild}${default}"
+		if [ -n "${branch}" ]; then
+			fn_print_nl "* Branch: ${branch}"
+		fi
+		fn_print "\n"
+		fn_script_log_info "No update available"
+		fn_script_log_info "Local build: ${localbuild}"
+		fn_script_log_info "Remote build: ${remotebuild}"
+		if [ -n "${branch}" ]; then
+			fn_script_log_info "Branch: ${branch}"
+		fi
+		if [ -f "${rootdir}/.dev-debug" ]; then
+			fn_print_nl "Remote build info"
+			fn_print_nl "* apiurl: ${apiurl}"
+			fn_print_nl "* remotebuildfilename: ${remotebuildfilename}"
+			fn_print_nl "* remotebuildurl: ${remotebuildurl}"
+			fn_print_nl "* remotebuild: ${remotebuild}"
+		fi
+	fi
+}
+
+# The location where the builds are checked and downloaded.
+remotelocation="github.com/rollerozxa/luantiserver"
+
+if [ "${firstcommandname}" == "INSTALL" ]; then
+	fn_update_remotebuild
+	fn_update_dl
+else
+	fn_print_dots "Checking for update"
+	fn_print_dots "Checking for update: ${remotelocation}"
+	fn_script_log_info "Checking for update: ${remotelocation}"
+	fn_update_localbuild
+	fn_update_remotebuild
+	fn_update_compare
+fi