go.sh

#!/bin/bash
# "go" (to be) Autogenerated by getteletext
# This runs the VBIT2 teletext system

# to change the directory where vbit and raspi-teletext, edit the line below 
export HOME=/home/pi

# to change the directory in which vbit looks for pages edit the line below
PAGESDIRECTORY=$HOME/teletext

PID=$$

function exitgo {
  kill `ps -o pid --no-headers --ppid $PID` >/dev/null 2>&1
  rm /var/tmp/vbit2-go.pid
}

# create a pid file
if [ -f /var/tmp/vbit2-go.pid ]; then
  OLDPID=`cat /var/tmp/vbit2-go.pid`
  RESULT=`ps -ef | grep $OLDPID | grep "go"`

  if [ -n "${RESULT}" ]; then
    echo "Script already running"
    exit 255
  fi
fi

echo $PID > /var/tmp/vbit2-go.pid

trap exitgo EXIT

sudo ~/raspi-teletext-master/tvctl on

# This loop restarts the teletext server if it stops.
# To stop teletext you should kill this process and not vbit or raspi.
until $HOME/vbit2/vbit2 --dir $PAGESDIRECTORY 2> /dev/null | $HOME/raspi-teletext-master/teletext -; do
    trap 'exit' INT HUP TERM
    echo "VBIT2 Server crashed with exit code 0.  Respawning.." >&2
    sleep 1
done