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dex/vendor/github.com/sirupsen/logrus/writer.go

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package logrus
import (
"bufio"
"io"
"runtime"
)
func (logger *Logger) Writer() *io.PipeWriter {
return logger.WriterLevel(InfoLevel)
}
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
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return NewEntry(logger).WriterLevel(level)
}
func (entry *Entry) Writer() *io.PipeWriter {
return entry.WriterLevel(InfoLevel)
}
func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
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reader, writer := io.Pipe()
var printFunc func(args ...interface{})
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switch level {
case DebugLevel:
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printFunc = entry.Debug
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case InfoLevel:
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printFunc = entry.Info
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case WarnLevel:
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printFunc = entry.Warn
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case ErrorLevel:
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printFunc = entry.Error
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case FatalLevel:
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printFunc = entry.Fatal
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case PanicLevel:
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printFunc = entry.Panic
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default:
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printFunc = entry.Print
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}
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go entry.writerScanner(reader, printFunc)
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runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
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func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
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scanner := bufio.NewScanner(reader)
for scanner.Scan() {
printFunc(scanner.Text())
}
if err := scanner.Err(); err != nil {
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entry.Errorf("Error while reading from Writer: %s", err)
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}
reader.Close()
}
func writerFinalizer(writer *io.PipeWriter) {
writer.Close()
}