func()

in lib/dockerregistry/manifests.go [49:83]

• 32 lines of code
• 8 McCabe index (conditional complexity)

func (t *manifests) getDigest(path string, subtype PathSubType) ([]byte, error) {
	repo, err := GetRepo(path)
	if err != nil {
		return nil, fmt.Errorf("get repo: %s", err)
	}

	var digest core.Digest
	switch subtype {
	case _tags:
		tag, _, err := GetManifestTag(path)
		if err != nil {
			return nil, fmt.Errorf("get manifest tag: %s", err)
		}
		digest, err = t.transferer.GetTag(fmt.Sprintf("%s:%s", repo, tag))
		if err != nil {
			return nil, fmt.Errorf("transferer get tag: %w", err)
		}
	case _revisions:
		var err error
		digest, err = GetManifestDigest(path)
		if err != nil {
			return nil, fmt.Errorf("get manifest digest: %s", err)
		}
	default:
		return nil, &InvalidRequestError{path}
	}

	blob, err := t.transferer.Download(repo, digest)
	if err != nil {
		return nil, fmt.Errorf("transferer download: %w", err)
	}
	defer blob.Close()

	return []byte(digest.String()), nil
}