File: writer.go

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golang-logrus 0.10.0-2~bpo8%2B1
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package logrus

import (
	"bufio"
	"io"
	"runtime"
)

func (logger *Logger) Writer() *io.PipeWriter {
	reader, writer := io.Pipe()

	go logger.writerScanner(reader)
	runtime.SetFinalizer(writer, writerFinalizer)

	return writer
}

func (logger *Logger) writerScanner(reader *io.PipeReader) {
	scanner := bufio.NewScanner(reader)
	for scanner.Scan() {
		logger.Print(scanner.Text())
	}
	if err := scanner.Err(); err != nil {
		logger.Errorf("Error while reading from Writer: %s", err)
	}
	reader.Close()
}

func writerFinalizer(writer *io.PipeWriter) {
	writer.Close()
}