func parseURL()

in pkg/cloud/utils.go [185:246]
57 lines of code
13 McCabe index (conditional complexity)

func parseURL(url string, apiGroup meta.APIGroup) (*ResourceID, error) {
	errNotValid := fmt.Errorf("%q is not a valid resource URL", url)
	// Trim prefix off URL leaving "projects/..."
	projectsIndex := strings.Index(url, "/projects/")
	if projectsIndex >= 0 {
		url = url[projectsIndex+1:]
	}

	parts := strings.Split(url, "/")
	if len(parts) < 2 || len(parts) > 6 {
		return nil, errNotValid
	}

	ret := &ResourceID{APIGroup: apiGroup}
	scopedName := parts
	if parts[0] == "projects" {
		ret.Resource = "projects"
		ret.ProjectID = parts[1]
		scopedName = parts[2:]

		if len(scopedName) == 0 {
			return ret, nil
		}
	}

	switch scopedName[0] {
	case "global":
		if len(scopedName) != 3 {
			return nil, errNotValid
		}
		ret.Resource = scopedName[1]
		ret.Key = meta.GlobalKey(scopedName[2])
		return ret, nil
	case "regions":
		switch len(scopedName) {
		case 2:
			ret.Resource = "regions"
			ret.Key = meta.GlobalKey(scopedName[1])
			return ret, nil
		case 4:
			ret.Resource = scopedName[2]
			ret.Key = meta.RegionalKey(scopedName[3], scopedName[1])
			return ret, nil
		default:
			return nil, errNotValid
		}
	case "zones":
		switch len(scopedName) {
		case 2:
			ret.Resource = "zones"
			ret.Key = meta.GlobalKey(scopedName[1])
			return ret, nil
		case 4:
			ret.Resource = scopedName[2]
			ret.Key = meta.ZonalKey(scopedName[3], scopedName[1])
			return ret, nil
		default:
			return nil, errNotValid
		}
	}
	return nil, errNotValid
}