def copy_file(self, path, prefixed_path, source_storage):
        """
        Attempt to copy ``path`` with storage
        """
        # Skip this file if it was already copied earlier
        if prefixed_path in self.copied_files:
            return self.log("Skipping '%s' (already copied earlier)" % path)
        # Delete the target file if needed or break
        if not self.delete_file(path, prefixed_path, source_storage):
            return
        # The full path of the source file
        source_path = source_storage.path(path)
        # Finally start copying
        if self.dry_run:
            self.log("Pretending to copy '%s'" % source_path, level=1)
        else:
            self.log("Copying '%s'" % source_path, level=1)
            with source_storage.open(path) as source_file:
                self.storage.save(prefixed_path, source_file)
        self.copied_files.append(prefixed_path)
Attempt to copy ``path`` with storage