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ADB="/Applications/Android\ Studio.app/sdk/platform-tools/adb"
ADB_SHELL="$ADB shell"
SELF=`basename $0`
DEST_DIR="./"

if [ $# -ne 2 ]
then
    echo "Usage: $SELF [PACKAGE.NAME [DB_FILE]]"
    echo "eg. $SELF com.mydomain.myapp names.db"
    exit 0
fi;

cmd_chmod="$ADB_SHELL 'run-as $1 chmod 666 /data/data/$1/databases/$2' "
cmd_pull="$ADB pull /data/data/$1/databases/$2 $DEST_DIR"

eval $cmd_chmod
eval $cmd_pull
err=$?
if [ $err -eq 0 ]
then
    echo "Done: ADB pull"
else
    echo "Failed: ADB pull"
    exit err
fi;