readDirectory

abstract fun readDirectory(    path: String,     extensions: <Error class: unknown class><String> = definedExternally,     exclude: <Error class: unknown class><String> = definedExternally,     include: <Error class: unknown class><String> = definedExternally,     depth: Double = definedExternally): <Error class: unknown class><String>(source)

Used to generate source file names from the config file and its include, exclude, files rules and also to cache the directory stucture