package utils import "github.com/docker/distribution/reference" // trimImage returns the short image name without tag. func trimImage(name string) string { ref, err := reference.ParseAnyReference(name) if err != nil { return name } named, err := reference.ParseNamed(ref.String()) if err != nil { return name } named = reference.TrimNamed(named) return reference.FamiliarName(named) } // expandImage returns the fully qualified image name. func expandImage(name string) string { ref, err := reference.ParseAnyReference(name) if err != nil { return name } named, err := reference.ParseNamed(ref.String()) if err != nil { return name } named = reference.TagNameOnly(named) return named.String() } // MatchImage returns true if the image name matches // an image in the list. Note the image tag is not used // in the matching logic. func MatchImage(from string, to ...string) bool { from = trimImage(from) for _, match := range to { if from == trimImage(match) { return true } } return false } // MatchHostname returns true if the image hostname // matches the specified hostname. func MatchHostname(image, hostname string) bool { ref, err := reference.ParseAnyReference(image) if err != nil { return false } named, err := reference.ParseNamed(ref.String()) if err != nil { return false } if hostname == "index.docker.io" { hostname = "docker.io" } return reference.Domain(named) == hostname }