func NewImageReference()

in scan/dependencies.go [120:154]
30 lines of code
7 McCabe index (conditional complexity)

func NewImageReference(imagePath string) (*image.Reference, error) {
	ref, err := reference.Parse(imagePath)
	if err != nil {
		return nil, errors.Wrapf(err, "Failed to parse image reference, ensure tags have a valid format: %s", imagePath)
	}
	result := &image.Reference{
		Reference: ref.String(),
	}

	if named, ok := ref.(reference.Named); ok {
		result.Registry = reference.Domain(named)

		if strings.Contains(result.Registry, ".") {
			// The domain is the registry, eg, registryname.azurecr.io
			result.Repository = reference.Path(named)
		} else {
			// DockerHub
			if result.Registry == "" {
				result.Registry = DockerHubRegistry
				result.Repository = strings.Join([]string{"library", reference.Path(named)}, "/")
			} else {
				// The domain is the DockerHub user name
				result.Registry = DockerHubRegistry
				result.Repository = strings.Join([]string{reference.Domain(named), reference.Path(named)}, "/")
			}
		}
	}
	if tagged, ok := ref.(reference.Tagged); ok {
		result.Tag = tagged.Tag()
	}
	if digested, ok := ref.(reference.Digested); ok {
		result.Digest = digested.Digest().String()
	}
	return result, nil
}