registryurl: deprecate GetHostname(), GetPort()

These were just wrappers for url.Hostname() and url.Port()

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

registryurl/parse.go

@@ -28,7 +28,7 @@ func Parse(registryURL string) (*url.URL, error) {
 		return nil, errors.New("unsupported scheme: " + u.Scheme)
 	}
 
-	if GetHostname(u) == "" {
+	if u.Hostname() == "" {
 		return nil, errors.New("no hostname in URL")
 	}
 
@@ -37,11 +37,15 @@ func Parse(registryURL string) (*url.URL, error) {
 }
 
 // GetHostname returns the hostname of the URL
+//
+// Deprecated: use url.Hostname()
 func GetHostname(u *url.URL) string {
 	return u.Hostname()
 }
 
 // GetPort returns the port number of the URL
+//
+// Deprecated: use url.Port()
 func GetPort(u *url.URL) string {
 	return u.Port()
 }