DataLogue-Backend/log/logger.go

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package log
import (
"io"
"log"
"os"
"time"
)
type writer struct {
io.Writer
timeFormat string
}
func (w writer) Write(b []byte) (n int, err error) {
return w.Writer.Write(append([]byte(time.Now().Format(w.timeFormat)), b...))
}
func New(msg string) *log.Logger {
if len(msg) > 0 {
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return log.New(&writer{os.Stdout, "2006/01/02 15:04:05 "}, "["+msg+"] \t", 0)
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}
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return log.New(&writer{os.Stdout, "2006/01/02 15:04:05 "}, "[info] \t", 0)
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}