ogar-linux-script.sh

#!/bin/sh

#Download, extract .tar.gz and clean function
download_and_extract () { 
if [ ! -d Ogar-master ]; then
	if [ ! -f master.tar.gz ]; then
			echo "No local master.tar.gz found, downloading with curl."
			curl -O -L https://github.com/OgarPlus/Ogar-Plus/archive/master.tar.gz
	fi
	if [ ! -f master.tar.gz ]; then
		echo "curl failed to download master.tar.gz, trying wget."
		wget https://github.com/OgarPlus/Ogar-Plus/archive/master.tar.gz
			if [ ! -f master.tar.gz ]; then
					echo "wget failed as well. Aborting!"
					exit 1
			fi
	fi
	echo "master.tar.gz found!"
	echo "Extracting master.tar.gz to /tmp."
	tar -xzf master.tar.gz -C /tmp
	echo "Removing master.tar.gz."
	rm master.tar.gz
	echo "Entering temporary directory."
	cd /tmp || exit 1
	echo "Organising and cleaning up the extracted files."
	rm Ogar-Plus-master/src/Start.bat
	rm Ogar-Plus-master/.gitignore
fi
}

echo "OGAR INSTALL, UPDATE AND UNINSTALL SCRIPT"
echo "Make sure you have: nodejs, npm, tar and wget/curl (for automatic downloads) installed!"
echo "However, you may also download and extract master.tar.gz manually."
echo "Place it in the same directory as the installer and name the extracted folder Ogar-master."
echo "----------------------------------------------------------------------------------------------------"
echo 'IMPORTANT: Use the following command to start the server in interactive mode for improved security:'
echo 'sudo -u ogar -H /bin/sh -c "cd; /bin/node src/index.js"'
if [ ! "$(id -u)" = 0 ]; then
		echo "This script must be run as root" 1>&2
		exit 1
fi

#Install
if [ "$1" = "install" ]; then
echo "INSTALLING"
if [ "$2" = "" ]; then
		echo "Please specify the directory in which you would like to install Ogar."
		exit 1
fi

echo "The Ogar server will be installed inside $2/ogar."
echo "Do you wish to continue? (Y/N)"
read -r yn
case $yn in
		[Yy]* ) ;;
		 * ) exit 1;;
esac

if [ ! -d "$2" ]; then
		echo "$2 doesn't exist or is otherwise not accessible. Make sure you use absolute paths."
		exit 1
fi

if [[ ! "$2" = /* ]]
then
   echo "$2 isn't an absolute path! This is required for proper installation."
   exit 1
fi

if grep "Arch Linux" /etc/*-release > /dev/null; then
	echo "You are running Arch Linux. It is recommended to use the Ogar AUR package - https://aur4.archlinux.org/packages/ogar-git/"
	echo "Do you wish to continue? (Y/N)"
	read -r yn
	case $yn in
		[Yy]* ) ;;
		* ) exit 1;;
	esac
fi
download_and_extract
echo "Copying the generated ogar folder to $2."
cp -RTf Ogar-Plus-master "$2"/ogar
echo "Removing temporary files"
rm -R Ogar-Plus-master

echo "Creating ogar user and group if they don't exist"
if ! getent group "ogar" >/dev/null; then
	groupadd -r ogar
fi
if ! getent passwd "ogar" >/dev/null; then
	useradd -r -M -N -g ogar -d "$2"/ogar -s /usr/bin/nologin -c 'Ogar Server' ogar
fi

echo "Installing ws module"
rm -R /root/.npm
cd "$2"/ogar || exit 1
npm install ws

echo "Symlinking gameserver.ini to /etc/ogar"
ln -s "$2"/ogar/gameserver.ini /etc/ogar

echo "Setting proper permissions"
chown -R ogar:ogar "$2"/ogar
chmod -R 755 "$2"/ogar

echo "Finished installing! :D"
exit 0
fi

#Update
if [ "$1" = "update" ]; then
echo "UPDATING"
if [ "$2" = "" ]; then
		echo "Please specify your existing Ogar installation."
		exit 1
fi

echo "The Ogar server inside $2/ogar will be updated."
echo "Do you wish to continue? (Y/N)"
read -r yn
case $yn in
		[Yy]* ) ;;
		 * ) exit 1;;
esac

if [ ! -f "$2/ogar/src/index.js" ]; then
		echo "$2/ogar/src/index.js either way doesn't exist or isn't accesible. Are you sure this is an Ogar installation?"
		exit 1
fi

if [[ ! "$2" = /* ]]
then
   echo "$2 isn't an absolute path! This is required for proper installation."
   exit 1
fi

download_and_extract
echo "Do you wish to install a fresh gamserver.ini? (Y/N)"
read -r yn
case $yn in
		[Yy]* ) ;;
		 * ) rm Ogar-Plus-master/gameserver.ini;;
esac
echo "Copying the generated ogar folder to $2."
cp -RTf Ogar-master "$2"/ogar
echo "Removing temporary files"
rm -R Ogar-master

echo "Updating ws module"
rm -R /root/.npm
cd "$2"/ogar || exit 1
npm install ws

echo "Setting proper permissions"
chown -R ogar:ogar "$2"/ogar
chmod -R 755 "$2"/ogar

echo "Finished updating! :D"
exit 0
fi

#Uninstall
if [ "$1" = "uninstall" ]; then
echo "UNINSTALLING"
if [ "$2" = "" ]; then
		echo "Please specify the directory in which Ogar is installed."
		exit 1
fi

if [ ! -f "$2/ogar/src/index.js" ]; then
		echo "$2/ogar/src/index.js either way doesn't exist or isn't accesible. Are you sure this is an Ogar installation?"
		exit 1
fi

echo "The ENTIRE $2/ogar folder will be DELETED."
echo "Do you wish to continue? (Y/N)"
read -r yn
case $yn in
		[Yy]* ) ;;
		* ) exit 1;;
esac

echo "Removing ogar user and group"
if getent passwd "ogar" >/dev/null; then
	userdel ogar > /dev/null
fi
if getent group "ogar" >/dev/null; then
	groupdel ogar >/dev/null
fi

echo "Unlinking /etc/ogar"
unlink /etc/ogar

echo "Removing ws module"
cd "$2"/ogar || exit 1
npm uninstall ws

echo "Removing the ENTIRE Ogar folder"
rm -R "$2"/ogar
echo "Finished uninstalling!"
exit 0
fi

#If no install/update/uninstall parameter is specified
echo "Please specify if you want to install, update or uninstall."
exit 1