fileutil

Documentation

Index

• Constants
• func FindInParents(path, filename string) (string, error)
• func IsDir(p string) (bool, error)
• type RewindableReader
• type WriterThenReader
  • func NewFileWriterThenReader(basename string) (WriterThenReader, error)

Constants

const (
	DefaultDirectoryMask = 0o755
)

Functions

func FindInParents

func FindInParents(path, filename string) (string, error)

func IsDir

func IsDir(p string) (bool, error)

IsDir Returns true if p is a directory, otherwise false

Types

type RewindableReader

type RewindableReader interface {
	io.ReadSeeker
	// Rewind allows sets RewindableReader to start re-reading the same data.
	Rewind() error
	// Name returns a user-visible name for underlying storage.  It may help debug some issues.
	Name() string
}

RewindableReader allows repeatedly reading the same stream.

type WriterThenReader

type WriterThenReader interface {
	io.Writer
	// StartReading stops writing and returns a RewindableReader that will allow repeatedly
	// reading the data and the total length of data.  The WriterThenReader should be
	// discarded; calls to Write() after StartReading() will fail.
	StartReading() (RewindableReader, int64, error)
	// Name returns a user-visible name for underlying storage.  It may help debug some issues.
	Name() string
}

WriterThenReader writes data to storage, then allows reading it. It is suitable for repeatedly processing large volumes of data.

func NewFileWriterThenReader

func NewFileWriterThenReader(basename string) (WriterThenReader, error)