replaceablewriter

README

replaceablewriter

replaceablewriter replace internal io.Writer

Synopsis

f, _ := os.Open("...")
w := replaceablewriter.New(f)
defer w.Close()
w.Write(...)

// replace
f2, _ := os.Open("...")
w.Replace(f2)
w.Write(...)

Description

replaceablewriter is a library that keeps io.Wrter inside, provides io.WriteCloser interface, and allows us to replace internal io.Writer safely.

It is useful for log rotation, etc.

Installation

% go get github.com/Songmu/replaceablewriter

Author

Songmu

Documentation

Index

• type Writer
  • func New(w io.Writer) *Writer
  • func (w *Writer) Close() error
  • func (w *Writer) Replace(wtr io.Writer)
  • func (w *Writer) Write(b []byte) (int, error)

Types

type Writer

type Writer struct {
	// contains filtered or unexported fields
}

func New

func New(w io.Writer) *Writer

New returns new replaceablewriter

func (*Writer) Close

func (w *Writer) Close() error

Close implements io.Closer

func (*Writer) Replace

func (w *Writer) Replace(wtr io.Writer)

Replace internal io.Writer

func (*Writer) Write

func (w *Writer) Write(b []byte) (int, error)

Write implements io.Writer