optional_subdirs = [
    "artopt",
    "external/*",
    "factory",
    "frameworks/av/*",
    "frameworks/av/media/*",
    "frameworks/base",
    "frameworks/common",
    "frameworks/native/include",
    "frameworks/native/libs/*",
    "frameworks/native/services/*",
    "frameworks/opt/*",
    "hardware/*",
    "hardware/connectivity/*",
    "hardware/connectivity/bluetooth/*",
    "packages/apps/*",
    "packages/providers/*",
    "packages/services/*",
    "scripts",
    "operator/hardware/*"
]