/
logger.go
58 lines (50 loc) · 1.48 KB
/
logger.go
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package logger
import (
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"gopkg.in/natefinch/lumberjack.v2"
)
var (
logger *zap.Logger
atomicLevel zap.AtomicLevel
)
// log rotation settings
func getLogWriter(filename string, maxSize, maxBackups, maxAge int, compress bool) zapcore.WriteSyncer {
lumberJackLogger := &lumberjack.Logger{
Filename: filename,
MaxSize: maxSize,
MaxBackups: maxBackups,
MaxAge: maxAge,
Compress: compress,
}
return zapcore.AddSync(lumberJackLogger)
}
// json serialized log format
func getEncoder() zapcore.Encoder {
encoderConfig := zap.NewProductionEncoderConfig()
encoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
encoderConfig.EncodeLevel = zapcore.CapitalLevelEncoder
return zapcore.NewJSONEncoder(encoderConfig)
}
// set log level
func setLogLevel(logLevel string) error {
atomicLevel = zap.NewAtomicLevel()
var level = zapcore.DebugLevel
err := level.Set(logLevel)
if err != nil {
return err
}
atomicLevel.SetLevel(level)
return nil
}
// Initialize logger according to configuration
func InitLogger(filename string, maxSize, maxBackups, maxAge int, compress bool, logLevel string) error {
writeSyncer := getLogWriter(filename, maxSize, maxBackups, maxAge, compress)
encoder := getEncoder()
setLogLevel(logLevel)
core := zapcore.NewCore(encoder, writeSyncer, atomicLevel)
caller := zap.AddCaller()
callerSkip := zap.AddCallerSkip(1)
logger = zap.New(core, caller, zap.AddStacktrace(zap.PanicLevel), callerSkip)
return nil
}