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| package logger
import ( "gopkg.in/natefinch/lumberjack.v2" "os" "sync"
"go.uber.org/zap" "go.uber.org/zap/zapcore" )
var ( _logger *zap.Logger once sync.Once )
var ( Debug func(msg string, fields ...zap.Field) Info func(msg string, fields ...zap.Field) Warn func(msg string, fields ...zap.Field) Error func(msg string, fields ...zap.Field) Fatal func(msg string, fields ...zap.Field) )
func InitLogger() { once.Do(func() { _logger = logConfig() })
Debug = _logger.Debug Info = _logger.Info Warn = _logger.Warn Error = _logger.Error Fatal = _logger.Fatal }
func logConfig() *zap.Logger {
filePath := os.Getenv("GIN_LOG_PATH") if filePath == "" { filePath = "./logs/server.log" }
loggerFileWriter := lumberjack.Logger{ Filename: filePath, MaxSize: 10, MaxBackups: 5, MaxAge: 7, Compress: true, }
fileEncoderConfig := zapcore.EncoderConfig{ TimeKey: "time", LevelKey: "level", NameKey: "logger", CallerKey: "line", MessageKey: "msg", StacktraceKey: "stacktrace", LineEnding: zapcore.DefaultLineEnding, EncodeLevel: zapcore.CapitalLevelEncoder, EncodeTime: zapcore.TimeEncoderOfLayout("2006-01-02 15:04:05"), EncodeDuration: zapcore.SecondsDurationEncoder, EncodeCaller: zapcore.ShortCallerEncoder, EncodeName: zapcore.FullNameEncoder, } stdEncoderConfig := zapcore.EncoderConfig{ TimeKey: "time", LevelKey: "level", NameKey: "logger", CallerKey: "line", MessageKey: "msg", StacktraceKey: "stacktrace", LineEnding: zapcore.DefaultLineEnding, EncodeLevel: zapcore.CapitalColorLevelEncoder, EncodeTime: zapcore.TimeEncoderOfLayout("2006-01-02 15:04:05"), EncodeDuration: zapcore.SecondsDurationEncoder, EncodeCaller: zapcore.ShortCallerEncoder, EncodeName: zapcore.FullNameEncoder, }
fileEncoder := zapcore.NewJSONEncoder(fileEncoderConfig) stdEncoder := zapcore.NewConsoleEncoder(stdEncoderConfig)
fileWriter := zapcore.NewMultiWriteSyncer(zapcore.AddSync(&loggerFileWriter)) stdWriter := zapcore.NewMultiWriteSyncer(zapcore.AddSync(os.Stdout))
debugLevel := zap.LevelEnablerFunc(func(level zapcore.Level) bool { return level >= zapcore.DebugLevel })
infoLevel := zap.LevelEnablerFunc(func(level zapcore.Level) bool { return level >= zapcore.InfoLevel })
core := zapcore.NewTee( zapcore.NewCore(fileEncoder, fileWriter, infoLevel), zapcore.NewCore(stdEncoder, stdWriter, debugLevel), )
if os.Getenv("GIN_DEBUG") == "true" { caller := zap.AddCaller() development := zap.Development() return zap.New(core, caller, development) } else { return zap.New(core) } }
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