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/
logger.go
99 lines (78 loc) · 1.66 KB
/
logger.go
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package main
import (
"fmt"
"io"
"io/ioutil"
"log"
"os"
"strings"
"time"
"github.com/sirupsen/logrus"
"gopkg.in/natefinch/lumberjack.v2"
)
func buildLogger() {
now := time.Now().Format("2006-01-02-15")
level, err := logrus.ParseLevel(cfg.Log.Level)
if err != nil {
log.Panicf(fmt.Sprintf("failed to configure log level: %s", err))
}
logger = logrus.New()
logger.SetOutput(ioutil.Discard)
logger.AddHook(&writerHook{
Writer: os.Stdout,
LogLevels: logrus.AllLevels,
})
logger.AddHook(&writerHook{
Writer: &lumberjack.Logger{
Filename: fmt.Sprintf("logs/%s-error.log", now),
MaxSize: 10,
Compress: false,
},
LogLevels: []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
logrus.WarnLevel,
},
})
logger.AddHook(&writerHook{
Writer: &lumberjack.Logger{
Filename: fmt.Sprintf("logs/%s-info.log", now),
MaxBackups: 3,
MaxSize: 10,
Compress: false,
},
LogLevels: []logrus.Level{
logrus.InfoLevel,
},
})
logger.SetLevel(level)
logger.SetFormatter(&logrus.TextFormatter{
DisableQuote: true,
})
}
type writerHook struct {
Writer io.Writer
LogLevels []logrus.Level
}
func (w *writerHook) Fire(entry *logrus.Entry) error {
data := entry.Data
message := entry.Message
var service string
var ok bool
if service, ok = data["service"].(string); ok {
message = fmt.Sprintf("[%s] %s", strings.ToLower(service), message)
delete(data, "service")
entry.Data = data
entry.Message = message
}
line, err := entry.Bytes()
if err != nil {
return err
}
_, err = w.Writer.Write(line)
return err
}
func (w *writerHook) Levels() []logrus.Level {
return w.LogLevels
}