source: bootstrapper/bootstrap.sh @ 65

#!/bin/bash
VERSION=4

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 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 "7dtd bootstrapper version $VERSION"
        echo
        echo "Usage: ./bootstrap.sh [-h] [-c] -i"
        echo "Parameters:"
        echo "  -h   Print this help screen and exit"
#       echo "  -o   Install optional dependencies ($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 "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() {
        for DEP in gcc wget tr rsync xmlstarlet; do
                which $DEP > /dev/null 2>&1
                if [ $? -ne 0 ]; then
                        echo "\"$DEP\" not installed. Please install it and run this script again."
                        exit 1
                fi
        done
        
        ldconfig -p | grep ld-linux | grep "(ELF)" > /dev/null
        if [ $? -ne 0 ]; then
                echo "WARNING: There probably is no 32 Bit version of ld-linux installed."
                echo "This is most probably part of a 32 Bit version of a glibc-package."
                echo
                echo "It will result in errors trying to run SteamCMD if this library is not available!."
                echo "Do you want to continue anyway?"
                select yn in "Yes" "No"; do
                        case $yn in
                                Yes)
                                        break;;
                                No)
                                        echo "Aborting."
                                        exit 1
                                        ;;
                        esac
                done
        fi

        ldconfig -p | grep gcc | grep -v 64 > /dev/null
        if [ $? -ne 0 ]; then
                echo "WARNING: There probably is no 32 Bit version of libgcc installed."
                echo
                echo "It will result in errors trying to run SteamCMD if this library is not available!"
                echo "Do you want to continue anyway?"
                select yn in "Yes" "No"; do
                        case $yn in
                                Yes)
                                        break;;
                                No)
                                        echo "Aborting."
                                        exit 1
                                        ;;
                        esac
                done
        fi
}

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 --no-overwrite-dir -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 /etc/cron.d/7dtd-backup
        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 /etc/cron.d/7dtd-backup
        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.tar.gz -C /home/sdtd/

        chown sdtd.sdtd -R /home/sdtd/linux_files
        chmod 0644 -R /home/sdtd/linux_files
        find /home/sdtd/linux_files -type d -exec chmod 0755 {} \;
        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
                checkSetupDeps
        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