rlog

rust log or robert's log if you like ;)
Mostly for my own projects, with inspiration taken from https://crates.io/crates/env_logger.

This package implements github.com/apex/log.Handler. It also offers a subset of apex/log.Interface that can be used directly.

The environment variable GO_LOG can be used to set the log level. Like env_logger we support tuning it on a package basis, e.g. GO_LOG=warn,sub=debug would only log warn/error/fatal messages with exception of in the sub package, where all logs get through.

Really simple, just import the package and use it:

package main

import "github.com/robertgzr/rlog"

func main() {
    rlog.Info("hello world!")
}

package main

import (
    "github.com/apex/log"
    "github.com/robertgzr/rlog"
)

func main() {
    log.SetHandler(rlog.Default)
    log.SetLevel(log.DebugLevel) // this overwrites the GO_LOG env

    log.Debugf("%s is a string", "a string")
}

Run GO_LOG=warn,subpkg=debug go run _example/main.go