func()

in spinnaker/spinnaker.go [596:638]

• 35 lines of code
• 9 McCabe index (conditional complexity)

func (s Spinnaker) GetRegionNames(app string, account D.AccountName, cluster D.ClusterName) ([]D.RegionName, error) {
	url := s.clusterURL(app, string(account), string(cluster))
	resp, err := s.client.Get(url)
	if err != nil {
		return nil, errors.Wrapf(err, "http get failed at %s", url)
	}

	defer func() {
		if cerr := resp.Body.Close(); cerr != nil && err == nil {
			err = errors.Wrapf(err, "body close failed at %s", url)
		}
	}()

	if resp.StatusCode != http.StatusOK {
		return nil, errors.Errorf("unexpected response code (%d) from %s", resp.StatusCode, url)
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, errors.Wrap(err, fmt.Sprintf("body read failed at %s", url))
	}

	var cl struct {
		ServerGroups []struct{ Region D.RegionName }
	}

	err = json.Unmarshal(body, &cl)
	if err != nil {
		return nil, errors.Wrapf(err, "failed to parse json at %s", url)
	}

	set := make(map[D.RegionName]bool)
	for _, g := range cl.ServerGroups {
		set[g.Region] = true
	}

	result := make([]D.RegionName, 0, len(set))
	for region := range set {
		result = append(result, region)
	}

	return result, nil
}