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package main

import "os"
import "time"
import "github.com/rs/zerolog"
import "github.com/rs/zerolog/log"
import "golang.org/x/crypto/ssh/terminal"

func initLogging() {

	// always log in UTC
	zerolog.TimestampFunc = func() time.Time {
		return time.Now().UTC()
	}

	log.Logger = log.With().Caller().Stack().Logger()

	if terminal.IsTerminal(int(os.Stdout.Fd())) {
		output := zerolog.ConsoleWriter{Out: os.Stdout, TimeFormat: time.RFC3339Nano}
		log.Logger = zerolog.New(output).With().Caller().Stack().Logger().With().Timestamp().Logger()
	}

	zerolog.SetGlobalLevel(zerolog.InfoLevel)
	if os.Getenv("DEBUG") != "" {
		zerolog.SetGlobalLevel(zerolog.DebugLevel)
	}
}