Instance Methodswift-package-manager 6.1.2Basics
relative(to:)
Returns a relative path that, when concatenated to base, yields the callee path itself. If base is not an ancestor of the callee, the returned path will begin with one or more .. path components.
func relative(to base: AbsolutePath) -> RelativePath Because both paths are absolute, they always have a common ancestor (the root path, if nothing else). Therefore, any path can be made relative to any other path by using a sufficient number of .. path components.
This method is strictly syntactic and does not access the file system in any way. Therefore, it does not take symbolic links into account.