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Zerologr

Go Reference test Go Report Card

A logr LogSink implementation using Zerolog.

Usage

import (
    "os"

    "github.com/go-logr/logr"
    "github.com/go-logr/zerologr"
    "github.com/rs/zerolog"
)

func main() {
    zerolog.TimeFieldFormat = zerolog.TimeFormatUnixMs

    zerologr.NameFieldName = "logger"
    zerologr.NameSeparator = "/"
    zerologr.SetMaxV(1)

    zl := zerolog.New(os.Stderr)
    zl = zl.With().Caller().Timestamp().Logger()
    var log logr.Logger = zerologr.New(&zl)

    log.Info("Logr in action!", "the answer", 42)
}

Implementation Details

For the most part, concepts in Zerolog correspond directly with those in logr.

V-levels in logr correspond to levels in Zerolog as zerologLevel = 1 - logrV. logr.V(0) is equivalent to zerolog.InfoLevel or 1; logr.V(1) is equivalent to zerolog.DebugLevel or 0 (default global level in Zerolog); logr.V(2) is equivalent to zerolog.TraceLevel or -1. Higher than 2 V-level is possible but misses some features in Zerolog, e.g. Hooks and Sampling. V-level value is a number and is only logged on Info(), not Error().