#!/bin/bash
set -xe

# Change the file slightly
echo | adb shell su root "tee /data/data/com.google.android.gms/shared_prefs/adid_settings.xml"

# Ask android for the ADID. Android detects the changed file (somewhere), and regenerates it
adb shell su root am start -W -n com.example.adidreader/com.example.adidreader.MainActivity

sleep 0.1

# Get the new ADID
adb shell su root cat /data/data/com.google.android.gms/shared_prefs/adid_settings.xml | xmllint --xpath 'string(//map/string[@name="adid_key"])' - > /adid