Function WithoutContext

util/errwrap/errwrap.go:81–111

WithoutContext passes through an error if it's nil or is a normal error. If it is a multierror, then it removes all errors of context cancellation unless that's all there is. If there's one error remaining, it returns that. Otherwise it returns a new multierror with what's left.

(err error)

// that's all there is. If there's one error remaining, it returns that.
// Otherwise it returns a new multierror with what's left.
func WithoutContext(err error) error {
	if err == nil {
		return nil
	}

	multiErr, ok := err.(*multierror.Error)
	if !ok {
		return err
	}

	if len(multiErr.Errors) == 0 {
		return err // unexpected
	}

	errs := []error{}
	for _, e := range multiErr.Errors {
		if e == context.Canceled {
			continue // remove
		}
		errs = append(errs, e)
	}

	if len(errs) == 0 {
		return context.Canceled
	}
	//if len(errs) == 1 {
	//	return errs[0]
	//}

	return Join(errs)
}

// NoContextCanceled return nil if the error is a context.Canceled. Otherwise it
// returns the error.