steamlink_monitor.sh

#!/bin/bash

# initial boot
cd /storage/steamlink/ || exit 1
[ -f /tmp/launch_steamlink ] && rm -f /tmp/launch_steamlink

while true; do
  if [ -f /tmp/launch_steamlink ]; then
    rm -f /tmp/launch_steamlink
    if [ ! -z "$(pidof kodi)" ]; then
      systemctl stop kodi
      while pidof kodi &>/dev/null; do sleep 1; done
    fi
    if [ -z "$(pidof kodi)" ] && [ -z "$(pidof shell)" ]; then
      # kodi stopped and steamlink not running
      /storage/steamlink/steamlink.sh
      while pidof shell &>/dev/null; do sleep 1; done
    fi
    if [ -z "$(pidof kodi)" ] && [ -z "$(pidof shell)" ]; then
      # both stopped, restart kodi
      systemctl start kodi
    fi
  fi
  sleep 1
done