# 检查之，看看是否在 (user userdebug eng) 范围内
check_variant $variant
if [ $ -ne 0 ]
then
echo
echo "** Invalid variant: '$variant'"
echo "** Must be one of ${VARIANT_CHOICES[@]}"
variant=
fi
if [ -z "$product" -o -z "$variant" ]
then
echo
return 1
fi
export TARGET_PRODUCT=$product
export TARGET_BUILD_VARIANT=$variant
export TARGET_SIMULATOR=false
export TARGET_BUILD_TYPE=release
fi # !simulator
echo
# 设置到环境变量，比较多，不再一一列出，最 简单的方法 set >env.txt 可获得
set_stuff_for_environment
# 打印一些主要的变量, 调用关系 printconfig()->get_build_var()->build/core/config.mk->build/core/envsetup.mk 比较罗嗦，不展开了
printconfig
}