golang/pkg/zaplog/logger.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package zaplog

import (
	"github.com/natefinch/lumberjack"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

// New creates a zap.Logger with LoggerOption.
func New(opts ...LoggerOption) *zap.Logger {
	defaultOpts := defaultLoggerOptions
	for _, o := range opts {
		o.apply(&defaultOpts)
	}

	return zap.New(zapcore.NewCore(
		zapcore.NewJSONEncoder(zapcore.EncoderConfig{
			TimeKey:        "ts",
			LevelKey:       "level",
			NameKey:        "logger",
			CallerKey:      "caller",
			MessageKey:     "msg",
			StacktraceKey:  "stacktrace",
			LineEnding:     zapcore.DefaultLineEnding,
			EncodeLevel:    zapcore.LowercaseLevelEncoder,
			EncodeTime:     zapcore.RFC3339TimeEncoder,
			EncodeDuration: zapcore.SecondsDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		}),
		zapcore.AddSync(&lumberjack.Logger{
			Filename:   defaultOpts.filename,
			MaxSize:    defaultOpts.maxSize,
			MaxBackups: defaultOpts.maxBackups,
			MaxAge:     defaultOpts.maxAge,
		}),
		zap.InfoLevel,
	),
		zap.AddCaller(),
		zap.AddStacktrace(zapcore.ErrorLevel),
	)
}