files

func Replace(target string, src string, backupPath string) error

func WithCreateThenReplace(fileName string, perm os.FileMode, action func(*os.File) error) error

func WithFileReader(from string, action func(io.Reader) error, filters ...func(r io.Reader) (io.Reader, error)) error

func WithOpenFile(name string, flag int, perm os.FileMode, action func(*os.File) error) error

func WithReader(source io.Reader, action func(io.Reader) error, filters ...func(r io.Reader) (io.Reader, error)) (err error)