combineSafe
fun Path.combineSafe(relativePath: Path): File
Append a relativePath safely that means that adding any extra .. path elements will not let access anything out of the reference directory (unless you have symbolic or hard links or multiple mount points)
..
extension
val Path.extension: String
Finds an extension of the given Path
normalizeAndRelativize
fun Path.normalizeAndRelativize(): Path
Remove all redundant . and .. path elements. Leading .. are also considered redundant.
.