Function Error

log/log.go:197–205

Error prints a log entry containing an error message assigned to the "error" key. Optionally, an error message prefix can be included. Prefix arguments are handled as in fmt.Print.

(ctx context.Context, err error, a ...interface{})

// Optionally, an error message prefix can be included. Prefix arguments are
// handled as in fmt.Print.
func Error(ctx context.Context, err error, a ...interface{}) {
	Helper()
	if _, hasStack := errors.Stack(err).Next(); len(a) > 0 && hasStack {
		err = errors.Wrap(err, a...) // keep err's stack
	} else if len(a) > 0 {
		err = fmt.Errorf("%s: %s", fmt.Sprint(a...), err) // don't add a stack here
	}
	Printkv(ctx, KeyError, err)
}

// formatKey ensures that the stringified key is valid for use in a
// Splunk-style K=V format. It stubs out delimeter and quoter characters in