higher order formatter/hook to enforce UTC times

enforce_utc.go

package log

import (
	log "github.com/sirupsen/logrus"
)

/**
 *  You can enforce UTC on a single formatter with this wrapper
 */
func EnforceUTC(f log.Formatter) log.Formatter {
	return utc_formatter{fmt: f}
}

type utc_formatter struct {
	fmt log.Formatter
}

func (u utc_formatter) Format(e *log.Entry) ([]byte, error) {
	e.Time = e.Time.UTC()
	return u.fmt.Format(e)
}

/**
 *  You can enforce UTC on all formatters with this Hook
 */
type EnforceUTCHook struct{}

func (_ EnforceUTCHook) Fire(e *log.Entry) error {
	e.Time = e.Time.UTC()
	return nil
}
func (e EnforceUTCHook) Levels() []log.Level {
	return log.AllLevels
}