/
zap.go
86 lines (74 loc) · 2.05 KB
/
zap.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
// Package logutil implements various log utilities.
package logutil
import (
"fmt"
"log"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
func init() {
logger, err := GetDefaultZapLogger()
if err != nil {
log.Fatalf("Failed to initialize global logger, %v", err)
}
_ = zap.ReplaceGlobals(logger)
}
// GetDefaultZapLoggerConfig returns a new default zap logger configuration.
func GetDefaultZapLoggerConfig() zap.Config {
return zap.Config{
Level: zap.NewAtomicLevelAt(ConvertToZapLevel(DefaultLogLevel)),
Development: false,
Sampling: &zap.SamplingConfig{
Initial: 100,
Thereafter: 100,
},
Encoding: "json",
// copied from "zap.NewProductionEncoderConfig" with some updates
EncoderConfig: zapcore.EncoderConfig{
TimeKey: "ts",
LevelKey: "level",
NameKey: "logger",
CallerKey: "caller",
MessageKey: "msg",
StacktraceKey: "stacktrace",
LineEnding: zapcore.DefaultLineEnding,
EncodeLevel: zapcore.LowercaseLevelEncoder,
EncodeTime: zapcore.ISO8601TimeEncoder,
EncodeDuration: zapcore.StringDurationEncoder,
EncodeCaller: zapcore.ShortCallerEncoder,
},
// Use "/dev/null" to discard all
OutputPaths: []string{"stderr"},
ErrorOutputPaths: []string{"stderr"},
}
}
// GetDefaultZapLogger returns a new default logger.
func GetDefaultZapLogger() (*zap.Logger, error) {
lcfg := GetDefaultZapLoggerConfig()
return lcfg.Build()
}
// DefaultLogLevel is the default log level.
var DefaultLogLevel = "info"
// ConvertToZapLevel converts log level string to zapcore.Level.
func ConvertToZapLevel(lvl string) zapcore.Level {
switch lvl {
case "debug":
return zap.DebugLevel
case "info":
return zap.InfoLevel
case "warn":
return zap.WarnLevel
case "error":
return zap.ErrorLevel
case "dpanic":
return zap.DPanicLevel
case "panic":
return zap.PanicLevel
case "fatal":
return zap.FatalLevel
default:
panic(fmt.Sprintf("unknown level %q", lvl))
}
}