ioutils

func AtomicDirCopy ¶

func AtomicDirCopy(ctx context.Context, src, dest string) error

func AtomicWriteFile ¶

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

AtomicWriteFile atomically writes data to a file named by filename.

func NewAtomicFileWriter ¶

func NewAtomicFileWriter(filename string, perm os.FileMode) (io.WriteCloser, error)

NewAtomicFileWriter returns WriteCloser so that writing to it writes to a temporary file and closing it atomically changes the temporary file to destination path. Writing and closing concurrently is not allowed.