func ExtractRegistry()

in ecr-login/api/client.go [59:84]

26 lines of code
6 McCabe index (conditional complexity)


func ExtractRegistry(input string) (*Registry, error) {
	if strings.HasPrefix(input, proxyEndpointScheme) {
		input = strings.TrimPrefix(input, proxyEndpointScheme)
	}
	serverURL, err := url.Parse(proxyEndpointScheme + input)
	if err != nil {
		return nil, err
	}
	if serverURL.Hostname() == ecrPublicName {
		return &Registry{
			Service: ServiceECRPublic,
		}, nil
	}
	matches := ecrPattern.FindStringSubmatch(serverURL.Hostname())
	if len(matches) == 0 {
		return nil, fmt.Errorf(programName + " can only be used with Amazon Elastic Container Registry.")
	} else if len(matches) < 3 {
		return nil, fmt.Errorf("%q is not a valid repository URI for Amazon Elastic Container Registry.", input)
	}
	return &Registry{
		Service: ServiceECR,
		ID:      matches[1],
		FIPS:    matches[2] == "-fips",
		Region:  matches[3],
	}, nil
}