log.go

// Copyright 2022 The kubegems.io Authors
//
// Licensed 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 log

import (
	"os"

	"github.com/go-logr/logr"
	"github.com/go-logr/zapr"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

const TimeFormat = "2006-01-02 15:04:05.999"

var GlobalLogger, LogrLogger = MustNewLogger()

var AtomicLevel = zap.NewAtomicLevel() // 通过更改 level 可一更改runtime logger的level

func SetLevel(level string) {
	GlobalLogger.Info("logger level updated", zap.String("level", level))
	_ = AtomicLevel.UnmarshalText([]byte(level))
}

func MustNewLogger() (*zap.Logger, logr.Logger) {
	config := zap.NewProductionConfig()
	config.Encoding = "console"
	config.Level = AtomicLevel
	// level from env
	_ = AtomicLevel.UnmarshalText([]byte(os.Getenv("LOG_LEVEL")))
	config.EncoderConfig.EncodeTime = zapcore.TimeEncoderOfLayout(TimeFormat)
	config.DisableCaller = false    // disable caller
	config.DisableStacktrace = true // disable stacktrace
	config.Sampling = nil           // disable sampling
	logger, err := config.Build()
	if err != nil {
		panic(err)
	}
	return logger, zapr.NewLogger(logger)
}