Function rustc_trans::util::fs::link_or_copy

pub fn link_or_copy<P, Q>(p: P, q: Q) -> Result<LinkOrCopy, Error> where P: AsRef<Path>, Q: AsRef<Path>

🔬 This is a nightly-only experimental API. (rustc_private)

Copy p into q, preferring to use hard-linking if possible. If q already exists, it is removed first. The result indicates which of the two operations has been performed.