#!/bin/bash
 
restore_data(){
  # check if DATA_FOLDER exists on phone and locally
  if [ ! -d $DATA_FOLDER ]; then
    echo "No local data folder: $DATA_FOLDER"
    exit 1
  fi
 
  EXISTS_REMOTE_FOLDER=`adb shell "if [ -d /data/data/$DATA_FOLDER ]; then echo yes; fi"`
  if [ -z "$EXISTS_REMOTE_FOLDER" ]; then
    echo "No remote data folder: $DATA_FOLDER"
    exit 2
  fi  
 
  # Get the userid of the app
  # REMOTE_OWNER=`adb shell "stat -t /data/data/$DATA_FOLDER" | awk '{print $5}'`
  # alternative methode 
  REMOTE_OWNER=`adb shell "cat /data/system/packages.list" | grep "$DATA_FOLDER\ " | awk '{print $2}'`
  if [ -z "$REMOTE_OWNER" ]; then
    echo "Error: Could not get remote owner id!"
    exit 2
  else 
    echo "The app userid on the phone is: $REMOTE_OWNER"
  fi  
 
  # Copy files to phone
  echo "Copying files to phone:"
  for TMP_FOLDER in $DATA_FOLDER/*; do 
    COPY_FOLDER=`basename $TMP_FOLDER`
    if [ "$COPY_FOLDER" != "lib" ]; then
      # The copy command
      adb push $TMP_FOLDER /data/data/$TMP_FOLDER
      # The permission change
      adb shell "busybox chown -R $REMOTE_OWNER:$REMOTE_OWNER /data/data/$TMP_FOLDER"
    else 
      echo "$COPY_FOLDER (skipped)"
    fi
  adb shell "busybox chown $REMOTE_OWNER:$REMOTE_OWNER /data/data/$DATA_FOLDER"
  done
 
  # Clearing line
  echo 
 
  return 0
}  
 
display_help(){
  echo "USAGE: `basename $0` DATA_FOLDER"
  echo "Restore the data of the given app"
  exit 1
}
 
if [ $# -ne 1 ]; then
  display_help
else
  DATA_FOLDER=`basename $1`
  restore_data
fi