Function WriteFileWithRename

pkg/internal/filesystem/writefile_rename.go:42–44

WriteFileWithRename is a drop-in replacement for os.WriteFile, with the same signature and almost identical behavior (see note below on inodes). Unlike os.WriteFile, it does provide extra guarantees: - Atomicity (provided by rename - *mostly* atomic, except on OS crash, where rename behavior is unde

(filename string, data []byte, perm os.FileMode)

// Finally note that we do not do anything smart wrt symlinks.
// User is expected to resolve symlink for the destination before calling this if needed.
func WriteFileWithRename(filename string, data []byte, perm os.FileMode) error {
	return CopyToFileWithRename(filename, bytes.NewBuffer(data), int64(len(data)), perm, time.Time{})
}

// CopyToFileWithRename is an atomic wrapper around io.Copy(file, reader). See notes above in WriteFile for details.
func CopyToFileWithRename(filename string, reader io.Reader, dataSize int64, perm os.FileMode, mTime time.Time) (err error) {