// ParseDockerURL takes a Docker URL and returns a ParsedDockerURL with its
// index URL, image name, and tag.
func ParseDockerURL(arg string) (*ParsedDockerURL, error) {
r, err := reference.ParseNamed(arg)
if err != nil {
return nil, err
}
var tag, digest string
switch x := r.(type) {
case reference.Canonical:
digest = x.Digest().String()
case reference.NamedTagged:
tag = x.Tag()
default:
tag = defaultTag
}
indexURL, remoteName := docker.SplitReposName(r.Name())
return &ParsedDockerURL{
OriginalName: arg,
IndexURL: indexURL,
ImageName: remoteName,
Tag: tag,
Digest: digest,
}, nil
}
// GetIndexName returns the docker index server from a docker URL.
func GetIndexName(dockerURL string) string {
index, _ := docker.SplitReposName(dockerURL)
return index
}