bash - install RetroPie on UDOO Bold V8

install_retropie.sh

#!/bin/bash

##
## This script is instended to install RetroPie on a newly installed Debian Buster box.
##
## Hardware requirements:
##   This script is known to work well with UDOO Bolt V8, which has an AMD Ryzen 1000 SoC.
##
## Software Requirements:
##
##   1. Copy this script onto the target device.
##      You can either copy this script using a USB stick, copying it straight onto /root or
##      maybe allow access to an administrator account via OpenSSH.
##
##   2. A bare minimum Debian Buster installation, containing just the base system and OpenSSH server.
##      Not even KDE or graphics drivers are necessary, since this script takes care of:
##      2.1. Linux kernel upgrade
##      2.2. Installation of non-free firmware
##      2.3. Installation of AMD GPU drivers
##      2.4. Creation of a separate user "retropie"
##      2.5. Install RetroPie under user "retropie"
##      2.6. Put /etc/retropie/config under Git source control
##      2.7. Put /opt/retropie/configs under Git source control
##      2.8. Put /home/retropie/.config under Git source control
##
##   In case you'd like to allow SSH access from the command line, you can try to obtain
##   an IP address via DHCP, employing dhclient like the example below:
##     # ### running as root:
##     # ip addr
##     # dhclient enp4s0
##     # ip addr
##


function install_retropie_etckeeper {
  sudo apt install -y etckeeper
  sudo etckeeper init
  sudo etckeeper commit "first commit"
}

function __install_retropie_apt_sources {
cat << EOD
deb     http://deb.debian.org/debian/ buster main non-free contrib
deb-src http://deb.debian.org/debian/ buster main non-free contrib

deb     http://security.debian.org/debian-security buster/updates main contrib non-free
deb-src http://security.debian.org/debian-security buster/updates main contrib non-free

# buster-updates, previously known as 'volatile'
deb     http://deb.debian.org/debian/ buster-updates main contrib non-free
deb-src http://deb.debian.org/debian/ buster-updates main contrib non-free

# buster-backports
deb     http://deb.debian.org/debian buster-backports main contrib non-free
deb-src http://deb.debian.org/debian buster-backports main contrib non-free
EOD
}

function install_retropie_apt_sources {
  __install_retropie_apt_sources | sudo tee /etc/apt/sources.list > /dev/null
  sudo apt update
}

function install_retropie_upgrade_kernel {
  __install_retropie_apt_sources | sudo tee /etc/apt/sources.list > /dev/null
  sudo apt update
  sudo apt install -t buster-backports -y linux-image-amd64 linux-headers-amd64 firmware-amd-graphics
}

function install_retropie_perform_reboot_after_kernel_upgrade {
  sync; sync; sync; sleep 3
  sudo reboot
}

function install_retropie_basic_requirements {
  sudo apt install -y sudo fail2ban
  sudo apt install -y zile tree htop psutils
  sudo apt install -y kde-standard
  sudo apt install -y atool arc arj lzip lzop nomarch rar rpm unace unalz unrar lbzip2 zip unzip p7zip p7zip-rar unrar-free
}

function install_retropie_amdgpu {
  sudo apt install -y firmware-linux firmware-linux-nonfree firmware-amd-graphics libdrm-amdgpu1 xserver-xorg-video-amdgpu
  sudo apt install -y mesa-vulkan-drivers libvulkan1 vulkan-tools vulkan-utils vulkan-validationlayers
  sudo apt install -y mesa-opencl-icd
}

function install_retropie_perform_reboot_after_amdgpu {
  sync; sync; sync; sleep 3
  sudo reboot
}

function install_retropie_create_user_for_retropie {
  sudo useradd -m -s /bin/bash -u 2000 -c RetroPie -G sudo retropie
  echo "Enter password for user retropie"
  sudo passwd retropie
  sudo su - retropie -c 'ssh-keygen -t rsa -b 4096'
  sudo etckeeper commit "user retropie is now created"
}

function install_retropie_requirements_for_retropie {
  sudo dpkg --add-architecture i386
  sudo apt update
  sudo etckeeper commit "dpkt --add-architecture i386"
  sudo apt install -y git dialog xmlstarlet
}

function install_retropie_application {
  if [ ! -d ~retropie/RetroPie-Setup ] ;then
    sudo --user retropie git clone --depth=1 https://github.com/RetroPie/RetroPie-Setup.git ~retropie/RetroPie-Setup
  fi
  sudo --user retropie --login sudo ~retropie/RetroPie-Setup/retropie_setup.sh
}

function install_retropie_source_control_of_configurations {
  sudo etckeeper commit -a -m "first commit of retropie configurations"

  if [ -d /opt/retropie/configs ] ;then
    cd /opt/retropie/configs
    sudo git init /opt/retropie/configs
    sudo git -C /opt/retropie/configs add .
    sudo git -C /opt/retropie/configs commit -a -m "first commit of retropie configurations"
  else
    echo "ERROR: could not find directory: /opt/retropie/config"
  fi

  if [ -d ~retropie/.config ] ;then
    sudo --user retropie git init ~retropie/.config
    sudo --user retropie git -C ~retropie/.config add .
    sudo --user retropie git -C ~retropie/.config commit -a -m "first commit of retropie configurations"
  else
    echo "ERROR: could not find directory: ~retropie/.config"
  fi
}

function install_retropie_nfs_requirements {
  sudo apt install -y nfs-common resolvconf
}

function install_retropie_nfs_mountpoints {
  sudo mkdir -p /mnt/omv/Software
  echo "192.168.0.2     omv.local        omv" | sudo tee -a /etc/hosts > /dev/null
  echo "omv.local:/export/Software                /mnt/omv/Software nfs     rsize=8192,wsize=8192,timeo=14,intr" | sudo tee -a /etc/fstab > /dev/null
}

function install_retropie_nfs_mount {
  sudo mount -t nfs -a
}

function install_retropie_copy_bios {
  sudo --user retropie cp -p /mnt/omv/Software/RetroPie/BIOS/psx/SCPH1001.BIN ~retropie/RetroPie/BIOS
}

function install_retropie_copy_roms {
  sudo --user retropie 7z x -o/home/retropie/RetroPie/roms/snes '/mnt/omv/Software/RetroPie/roms/snes/Lemmings.7z'
  sudo --user retropie 7z x -o/home/retropie/RetroPie/roms/snes '/mnt/omv/Software/RetroPie/roms/snes/Lost Vikings II, The.7z'
  sudo --user retropie 7z x -o/home/retropie/RetroPie/roms/psx  '/mnt/omv/Software/RetroPie/roms/psx/Crash Bandicoot (USA).7z'
}

##TODO: install and configure PCSX2
#function install_retropie_install_playstation2_emulator{
#  sudo apt install -y pcsx2
#  cp /mnt/omv/Software/RetroPie/BIOS/ps2/SCPH-70004_BIOS_V12_PAL_200.* .
#}

function install_retropie {
  echo "Please call function by function manually since reboots are necessary."
}


if [ $_ != $0 ] ;then
  # echo "Script is being sourced: list available functions"
  self=$(readlink -f "${BASH_SOURCE[0]}"); dir=$(dirname $self)
  # echo $dir
  # echo $self
  fgrep "function " $self | fgrep -v "function __" | cut -d' ' -f2 | head -n -2
else
  # echo "Script is a subshell: execute last function"
  self=$(readlink -f "${BASH_SOURCE[0]}"); dir=$(dirname $self)
  # echo $dir
  # echo $self
  cmd=$(fgrep "function " $self | cut -d' ' -f2 | head -n -2 | tail -1)
  # echo $cmd
  $cmd $*
fi