010-tty

#!/bin/bash
# Replace the screen with our bootscreen which shows some basic info to the user (like how to connect)

apt install -y dialog

# Disable TTY1
if [[ -d /etc/systemd/system/getty@tty1.service.d ]]; then
  rm -rf /etc/systemd/system/getty@tty1.service.d
fi
systemctl disable getty@tty1.service
systemctl stop getty@tty1.service

# Use TTY7
if [[ ! -d /etc/systemd/system/getty@tty7.service.d ]]; then
  mkdir /etc/systemd/system/getty@tty7.service.d
fi
systemctl disable getty@tty7.service
systemctl stop getty@tty7.service
echo "
[Service]
ExecStart=
ExecStart=-/usr/local/share/nems/nems-scripts/bootscreen.sh
StandardInput=tty
StandardOutput=tty
" > /etc/systemd/system/getty@tty7.service.d/override.conf
systemctl daemon-reload
systemctl enable getty@tty7.service
systemctl start getty@tty7.service
chvt 7

if [[ ! -f /etc/rc.local ]]; then
  echo "#!/bin/sh -e
  " > /etc/rc.local
  chmod +x /etc/rc.local
fi

if grep -q '"exit 0"' /etc/rc.local; then
  sed -i~ '/"exit 0"/d' /etc/rc.local
fi

if ! grep -q "NEMS00001" /etc/rc.local; then

  addition="# NEMS00001 Use TTY7\nchvt 7\n\n"

  if grep -q "exit" /etc/rc.local; then
    # This file contains an exit command, so make sure our new command comes before it
    /bin/sed -i -- 's,exit,'"$addition"'exit,g' /etc/rc.local
  else
    # No exit command within the file, so just add it
    echo "PLACEHERE" >> /etc/rc.local
    /bin/sed -i -- 's,PLACEHERE,'"$addition"'exit 0,g' /etc/rc.local
  fi
  /bin/systemctl stop rc-local.service
  /bin/systemctl start rc-local.service
fi