gotee

Documentation

Index

• type Tee
  • func NewTee(filename string) (*Tee, error)
  • func (t *Tee) Close()
  • func (t *Tee) Sync()

Examples

• NewTee

Types

type Tee

type Tee struct {
	OrigStdout *os.File
	OrigStderr *os.File
	Stdout     *os.File
	Stderr     *os.File
	TeeFile    *os.File
	// contains filtered or unexported fields
}

func NewTee

func NewTee(filename string) (*Tee, error)

Example

tee, err := NewTee("tee.out")
if err != nil {
	fmt.Printf("ERROR: tee: %s\n", err)
	return
}
// you can write headers, dates etc just to the
// tee file if necessary
fmt.Fprintf(tee.OrigStdout, "write to stdout but not tee file\n")
fmt.Fprintf(tee.TeeFile, "test to tee file\n")
fmt.Fprintf(os.Stderr, "test to stderr\n")
fmt.Printf("test to stdout\n")
tee.Close()
fmt.Printf("more to stdout\n")

teed, _ := ioutil.ReadFile("tee.out")
fmt.Printf("teed output:\n%s", teed)

Output:
write to stdout but not tee file
test to stdout
more to stdout
teed output:
test to tee file
test to stderr
test to stdout

func (*Tee) Close

func (t *Tee) Close()

func (*Tee) Sync

func (t *Tee) Sync()