reboot_and_start_quest_game.py

import subprocess
import time
import os

gameName = "MyQuestGame"
companyName = "YourCompany"

maxTries = 20

# Reboot Quest
subprocess.run("adb reboot")
print("\nQuest rebooting ...")

# Check for device
time.sleep(20)
print("\nWaiting for Quest ...")

connected = False
offlineTries = maxTries
while not connected:
    result = subprocess.check_output("adb devices")
    result = (str(result).replace('\\r','').split('\\n')[1])
    if 'device' in result:
        print("\nQuest connected")
        connected = True
    elif 'offline' in result:
        if offlineTries == 0:
            print("\nTry to unplug/replug your Quest")
            offlineTries = maxTries
        else:
            offlineTries = offlineTries - 1
            time.sleep(1)
    else:
        time.sleep(1)

subprocess.run("adb shell am start -n com."+companyName+"."+gameName+"/com.epicgames.ue4.GameActivity")
print("\n------------- Game", gameName,'launched ! -------------\n')