Crate atomic_file_install 

Atomically install a regular file or a symlink to destination, can be either noclobber (fail if destination already exists) or replacing it atomically if it exists.

Functions

atomic_install

Atomically install a file, this atomically replace dst if it exists.

atomic_install_noclobber

Install a file, this fails if the dst already exists.

atomic_symlink_file

Atomically create a symlink at link to dest, this atomically replace link if it already exists.

atomic_symlink_file_noclobber

Create a symlink at link to dest, this fails if the link already exists.