source: bootstrapper/bootstrap.sh @ 35

#!/bin/bash
# Version 1

if [ `id -u` -ne 0 ]; then
        echo "This script has to be run as root!"
        exit 1
fi


ADDCRONJOBS=0
RUNINSTALL=0
INSTALLOPTIONALDEPS=0

DEPENDENCIES="gcc wget tr rsync xmlstarlet"

if [ -n "$(command -v apt-get)" ]; then
        ISDEBIAN=1
else
        ISDEBIAN=0
fi

if [ $(uname -m) == 'x86_64' ]; then
        IS64BIT=1
else
        IS64BIT=0
fi

if [ $IS64BIT -eq 1 ]; then
        DEPENDENCIES="$DEPENDENCIES lib32gcc1"
fi

showHelp() {
        echo "Usage: ./bootstrap.sh [-h] [-c] -i"
        echo "Parameters:"
        echo "  -h   Print this help screen and exit"
#       echo "  -o   Install optional dependencies ($OPTDEPENDENCIES)"
        echo "  -c   Enable cron job for automatic backups"
        echo "  -i   Required to actually start the installation"
}

intro() {
        echo
        echo "7DtD Linux dedicated server bootstrapper"
        echo
        echo "This will install a 7DtD server according to the information"
        echo "given on:"
        echo "   https://7dtd.illy.bz/"
        echo
        read -p "Press enter to continue"
        echo -e "\n=============================================================\n\n"
}

nonDebianWarning() {
        if [ $ISDEBIAN -eq 0 ]; then
                echo "NOTE: It seems like this system is not based on Debian."
                echo "Although installation of the scripts and SteamCMD/7dtd"
                echo "will work the installed management scripts will probably"
                echo "fail because of missing dependencies. Make sure you check"
                echo "the website regarding the prerequisites"
                echo "(https://7dtd.illy.bz)."
                echo
                echo "Also make sure you have the 32 Bit version of libgcc installed!"
                echo
                echo "Do you want to continue anyway?"
                select yn in "Yes" "No"; do
                        case $yn in
                                Yes)
                                        echo "Continuing..."
                                        break;;
                                No)
                                        echo "Aborting."
                                        exit 0
                                        ;;
                        esac
                done
                echo -e "\n=============================================================\n\n"
        fi
}

installAptDeps() {
        echo -e "Installing dependencies\n"
        if [ $IS64BIT -eq 1 ]; then
                dpkg --add-architecture i386
        fi
        apt-get update
        apt-get install $DEPENDENCIES
        echo -e "\n=============================================================\n\n"
}

installOptionalDeps() {
        echo -e "Installing optional dependencies\n"
        apt-get install $OPTDEPENDENCIES
        echo -e "\n=============================================================\n\n"
}

checkSetupDeps() {
        which gcc > /dev/null
        if [ $? -ne 0 ]; then
                echo "'gcc' not installed. Please install it and run this script again."
                echo 0
                return
        fi

        which wget > /dev/null
        if [ $? -ne 0 ]; then
                echo "'wget' not installed. Please install it and run this script again."
                echo 0
                return
        fi

        which tr > /dev/null
        if [ $? -ne 0 ]; then
                echo "'tr' not installed. Please install it and run this script again."
                echo 0
                return
        fi
        
        ldconfig -p | grep gcc | grep -v 64 > /dev/null
        if [ $? -ne 0 ]; then
                echo "There probably is no 32 Bit version of libgcc installed."
                echo "Do you want to continue?"
                select yn in "Yes" "No"; do
                        case $yn in
                                Yes)
                                        break;;
                                No)
                                        echo "Aborting."
                                        exit 0
                                        ;;
                        esac
                done
        fi

        echo 1
}

setupUser() {
        echo -e "Setting up user and group \"sdtd\"\n"
        useradd -d /home/sdtd -m -r -s /bin/bash -U sdtd
        echo -e "\n=============================================================\n\n"
}

installManagementScripts() {
        echo -e "Downloading and installing management scripts\n"
        wget -nv http://illy.bz/fi/7dtd/management_scripts.tar.gz -O /tmp/management_scripts.tar.gz
        tar --touch -xzf /tmp/management_scripts.tar.gz -C /

        chown root.root /etc/7dtd.conf
        chmod 0600 /etc/7dtd.conf

        chown sdtd.sdtd /home/sdtd -R

        chown root.root /etc/init.d/7dtd.sh
        chown root.root /etc/bash_completion.d/7dtd
        chown root.root /usr/local/bin/7dtd.sh
        chown root.root /usr/local/lib/7dtd -R
        chmod 0755 /etc/init.d/7dtd.sh
        chmod 0755 /etc/bash_completion.d/7dtd
        chmod 0755 /usr/local/bin/7dtd.sh
        chmod 0755 /usr/local/lib/7dtd -R

        if [ $ISDEBIAN -eq 1 ]; then
                update-rc.d 7dtd.sh defaults
        fi
        
        echo
        echo "Compiling start-stop-daemon"
        cd /usr/local/lib/7dtd/start-stop-daemon

        gcc -Wall -Wextra -Wno-return-type -o start-stop-daemon start-stop-daemon.c
        chown root.root start-stop-daemon
        chmod 0755 start-stop-daemon

        echo -e "\n=============================================================\n\n"
}

installLinuxEngine() {
        echo -e "Downloading and installing Linux engine\n"
        wget -nv http://illy.bz/fi/7dtd/linux_files.tar.gz -O /tmp/linux_files.tar.gz
        tar --touch -xzf /tmp/linux_files.gz -C /home/sdtd/

        chown sdtd.sdtd /home/sdtd/linux_files
        chmod 0644 /home/sdtd/linux_files
        chmod 0755 /home/sdtd/linux_files/engine/7DaysToDie.x86

        echo -e "\n=============================================================\n\n"
}

setSteamLoginData() {
        echo -e "Steam account data\n"
        echo "Please enter your Steam login data for SteamCMD to get the 7dtd-server files:"
        read -p "Steam username: " username
        read -s -p "Steam password: " password
        sed -i "s/export STEAM_USER=/export STEAM_USER=$username/" /etc/7dtd.conf
        sed -i "s/export STEAM_PASS=/export STEAM_PASS=$password/" /etc/7dtd.conf
        echo -e "\n=============================================================\n\n"
}

installSteamCmdAndSDTD() {
        echo -e "Installing SteamCMD and 7DtD\n"
        7dtd.sh updateengine
        echo -e "\n=============================================================\n\n"
}

addCronJobs() {
        echo -e "Enabling backup cron job\n"

        echo -e "By default a backup of the save folder will be created once"
        echo -e "  per hour. This can be changed in /etc/cron.d/7dtd-backup."
        
        cat /etc/cron.d/7dtd-backup | tr -d '#' > /tmp/7dtd-backup
        cp /tmp/7dtd-backup /etc/cron.d

        echo -e "\n=============================================================\n\n"
}

finish() {
        if [ $ISDEBIAN -eq 0 ]; then
                echo
                echo "You are not running a Debian based distribution."
                echo "The following things should manually be checked:"
                echo " - Existence of prerequsities"
                echo " - Running the init-script on boot"
        else
                echo -e "\n ALL DONE"
        fi

        echo
        echo -e "You can now continue setting up instances as explained on the website:"
        echo -e "  https://7dtd.illy.bz/wiki/Instance%20management"
        echo
        echo -e "You might also need to manually enable bash auto completion, refer to:"
        echo -e "  https://7dtd.illy.bz/wiki/Installation#Bashcompletion"
        echo
        echo -e "For further configuration options check:"
        echo -e "  /etc/7dtd.conf"
        echo
        echo -e "For feedback, suggestions, problems please visit the bugtracker:"
        echo -e "  https://7dtd.illy.bz/"
        echo
}

main() {
        intro
        nonDebianWarning

        if [ $ISDEBIAN -eq 1 ]; then
                installAptDeps
                if [ $INSTALLOPTIONALDEPS -eq 1 ]; then
#                       installOptionalDeps
                        echo
                fi
        else
                if [ $(checkSetupDeps) -eq 0 ]; then
                        return
                fi
        fi
        setupUser
        installManagementScripts
        installLinuxEngine
        setSteamLoginData
        installSteamCmdAndSDTD
        if [ $ADDCRONJOBS -eq 1 ]; then
                addCronJobs
        fi
        finish
}

if [ -z $1 ]; then
        showHelp
        exit 0
fi
while getopts "hcoi" opt; do
        case "$opt" in
                h)
                        showHelp
                        exit 0
                        ;;
                c)
                        ADDCRONJOBS=1
                        ;;
                o)
                        INSTALLOPTIONALDEPS=1
                        ;;
                i)
                        RUNINSTALL=1
                        ;;
        esac
done
if [ $RUNINSTALL -eq 1 ]; then
        main
fi