get

#!/bin/bash
set -e

cat << "EOF"
 ___        ________   ________   ___  __     ___   ________    ________
|\  \      |\   __  \ |\   __  \ |\  \|\  \  |\  \ |\   ___  \ |\   ____\
\ \  \     \ \  \|\  \\ \  \|\  \\ \  \/  /|_\ \  \\ \  \\ \  \\ \  \___|
 \ \  \     \ \  \\\  \\ \  \\\  \\ \   ___  \\ \  \\ \  \\ \  \\ \  \  ___
  \ \  \____ \ \  \\\  \\ \  \\\  \\ \  \\ \  \\ \  \\ \  \\ \  \\ \  \|\  \
   \ \_______\\ \_______\\ \_______\\ \__\\ \__\\ \__\\ \__\\ \__\\ \_______\
    \|_______| \|_______| \|_______| \|__| \|__| \|__| \|__| \|__| \|_______|



 ________   ___        ________   ________    ________
|\   ____\ |\  \      |\   __  \ |\   ____\  |\   ____\
\ \  \___| \ \  \     \ \  \|\  \\ \  \___|_ \ \  \___|_
 \ \  \  ___\ \  \     \ \   __  \\ \_____  \ \ \_____  \
  \ \  \|\  \\ \  \____ \ \  \ \  \\|____|\  \ \|____|\  \
   \ \_______\\ \_______\\ \__\ \__\ ____\_\  \  ____\_\  \
    \|_______| \|_______| \|__|\|__||\_________\|\_________\
                                    \|_________|\|_________|


Thanks for installing looking glass - github.com/glasslabs/looking-glass
EOF

function step() { tput bold && tput setaf 5 && echo "$@" && tput sgr0; }
function info() { tput bold && tput setaf 4 && echo "$@" && tput sgr0; }
function warn() { tput bold && tput setaf 3 && echo "$@" && tput sgr0; }
function success() { tput bold && tput setaf 2 && echo "$@" && tput sgr0; }
function err() { tput bold && tput setaf 1 && echo "$@" && tput sgr0; }

if test "$USER" == 'root'; then
  err "Cowardly refusing to continue. Do not run as root."
  exit 1
fi

ME_URL="https://github.com/glasslabs/installer/archive/main.zip"
ME_PATH="/tmp/installer"
TEMP_ME_FILE="/tmp/installer.zip"
ARCH="$(uname -m | cut -c1-5)"
RELEASES_URL="https://github.com/glasslabs/looking-glass/releases"
TEMP_FILE="/tmp/looking-glass.tar.gz"
USER="glass"
USER_HOME="/home/$USER"

check_version() {
  if test "$ARCH" != "armv6" && test "$ARCH" != "armv7"; then
    actual = $(uname -m)
    err "ERROR: Unsupported architecture '$actual' for installer. Please install manually."
    exit 1
  fi
  info "Arch Version supported"
}

extract_me() {
  info "Extracting installer dependencies"

  rm -rf "$ME_PATH" "$TEMP_ME_FILE"
  curl -sL -o "$TEMP_ME_FILE" "$ME_URL"
  mkdir -p "$ME_PATH"
  unzip -qq "$TEMP_ME_FILE" -d "$ME_PATH"
  mv "$ME_PATH"/*/* "$ME_PATH"
}

## Install Dependencies

install_deps() {
  info "Installing dependencies"

  sudo apt-get update -q
  sudo apt-get install -q -y --no-install-recommends xserver-xorg-video-all xserver-xorg-input-all xserver-xorg-core \
    xinit x11-xserver-utils git chromium-browser unclutter
}

## User functions

create_user() {
  info "Setting up user"

  if id -u "$USER" >/dev/null 2>&1; then
    warn "User already exists. Skipping."
    return
  fi

  step "Creating user"

  sudo useradd -m -s "$(command -v bash)" -G adm,dialout,cdrom,audio,video,plugdev,games,users,input,netdev,spi,i2c,gpio $USER

  step "Creating autologin for user"

  sudo systemctl set-default multi-user.target
  sudo ln -fs /lib/systemd/system/getty@.service /etc/systemd/system/getty.target.wants/getty@tty1.service
  sudo cat <<EOF | sudo tee -a /etc/systemd/system/getty@tty1.service.d/autologin.conf
[Service]
ExecStart=
ExecStart=-/sbin/agetty --autologin $USER --noclear %I \$TERM
EOF
}

setup_user() {
  info "Setting up user"

  sudo -u "$USER" -g "$USER" cp -a "$ME_PATH/home/." "$USER_HOME/"

  if test -d "$USER_HOME/looking-glass"; then
    warn "Config directory already exits. Skipping."
    return
  fi

  step "Creating default config in $USER_HOME/looking-glass"

  sudo -u "$USER" -g "$USER" mkdir -p "$USER_HOME/looking-glass/modules"
  sudo -u "$USER" -g "$USER" mkdir -p "$USER_HOME/looking-glass/assets"
  sudo -u "$USER" -g "$USER" touch "$USER_HOME/looking-glass/secrets.yaml"
  sudo -u "$USER" -g "$USER" cp "$ME_PATH/config.yaml" "$USER_HOME/looking-glass/"

}

## Install Splashscreen

install_splashscreen() {
  info "Setting splashscreen"

  if ! command -v plymouth &> /dev/null; then
    step "Installing plymouth"

    sudo apt-get -q -y install plymouth plymouth-themes
  fi

  cmdline=/boot/cmdline.txt
  if ! grep -q "splash" $cmdline ; then
      step "Enabling splashscreen"

      sudo sed -i $cmdline -e "s/$/ quiet splash plymouth.ignore-serial-consoles/"
  fi

  theme_dir="/usr/share/plymouth/themes"
  if test ! -d "$theme_dir"; then
    warn "Plymouth theme directory does not exist. Skipping."
    return
  fi

  if test ! -d "$theme_dir/looking-glass"; then
    sudo mkdir "$theme_dir/looking-glass"
  fi

  sudo cp -a "$ME_PATH/splashscreen/." "$theme_dir/looking-glass/"

  if ! command -v plymouth-set-default-theme &> /dev/null; then
    warn "Cannot set plymount theme."
    return
  fi

  sudo plymouth-set-default-theme -R looking-glass
}

## Download and install looking glass

latest_version() {
  curl -sL -o /dev/null -w %{url_effective} "$RELEASES_URL/latest" |
    rev |
    cut -f1 -d'/' |
    rev
}

install_looking_glass() {
  info "Installing Looking Glass"

  test -z "$VERSION" && VERSION="$(latest_version)"
  if test -z "$VERSION"; then
    err "ERROR: Could not determine latest version"
    exit 1
  fi

  if test -z "$ARCH"; then
    err "ERROR: Could not determine arch to use"
    exit 1
  fi

  rm -f "$TEMP_FILE"
  curl -sL -o "$TEMP_FILE" "$RELEASES_URL/download/$VERSION/looking-glass_${VERSION}_linux_$ARCH.tar.gz"
  sudo tar -zxf "$TEMP_FILE" -C /usr/local/bin/ glass
}

## Handle reboot
do_reboot () {
  info 'Reboot? (y/N)' && read x && [[ "$x" == "y" ]] && /sbin/reboot;
}

## script main

check_version

install_deps
extract_me

create_user
setup_user

install_splashscreen

install_looking_glass

success "Config: $USER_HOME/looking-glass"
success "Modules: $USER_HOME/looking-glass/modules"
success "Install Completed."

do_reboot