pkg/log/log.go (47 lines of code) (raw):

/* * 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 log import ( "os" "sync" "go.uber.org/zap" "go.uber.org/zap/zapcore" ) var ( logger *zap.SugaredLogger loggerInit sync.Once ) func SetLogger(l *zap.SugaredLogger) { logger = l } func NewLogger(level zapcore.Level, out zapcore.WriteSyncer) { var atomicLevel = zap.NewAtomicLevel() atomicLevel.SetLevel(level) core := zapcore.NewCore( zapcore.NewConsoleEncoder(zap.NewDevelopmentEncoderConfig()), out, atomicLevel) lg := zap.New(core, zap.AddStacktrace(zap.ErrorLevel), zap.AddCaller(), zap.AddCallerSkip(1)) logger = lg.Sugar() } func GetLogger() *zap.SugaredLogger { loggerInit.Do(func() { if logger == nil { // logger is not initialized, for example, running `go test` NewLogger(zapcore.InfoLevel, os.Stdout) } }) return logger } func Debugf(template string, args ...interface{}) { GetLogger().Debugf(template, args...) } func Infof(template string, args ...interface{}) { GetLogger().Infof(template, args...) } func Warnf(template string, args ...interface{}) { GetLogger().Warnf(template, args...) } func Errorf(template string, args ...interface{}) { GetLogger().Errorf(template, args...) } func Fatalf(template string, args ...interface{}) { GetLogger().Fatalf(template, args...) }