Changed the tag parsing to it will work even if there is a port in the repos registry url (full qualified name for pushing on a standalone registry)

buildfile.go

@@ -52,20 +52,10 @@ func (b *buildFile) CmdFrom(name string) error {
 	image, err := b.runtime.repositories.LookupImage(name)
 	if err != nil {
 		if b.runtime.graph.IsNotExist(err) {
-
-			var tag, remote string
-			if strings.Contains(name, ":") {
-				remoteParts := strings.Split(name, ":")
-				tag = remoteParts[1]
-				remote = remoteParts[0]
-			} else {
-				remote = name
-			}
-
+			tag, remote := parseRepositoryTag(name)
 			if err := b.srv.ImagePull(remote, tag, b.out, utils.NewStreamFormatter(false), nil); err != nil {
 				return err
 			}
-
 			image, err = b.runtime.repositories.LookupImage(name)
 			if err != nil {
 				return err

commands.go

@@ -754,6 +754,20 @@ func (cli *DockerCli) CmdPush(args ...string) error {
 	return nil
 }
 
+// Get a repos name and returns the right reposName + tag
+// The tag can be confusing because of a port in a repository name.
+//     Ex: localhost.localdomain:5000/samalba/hipache:latest
+func parseRepositoryTag(repos string) (string, string) {
+	n := strings.LastIndex(repos, ":")
+	if n < 0 {
+		return repos, ""
+	}
+	if tag := repos[n+1:]; !strings.Contains(tag, "/") {
+		return repos[:n], tag
+	}
+	return repos, ""
+}
+
 func (cli *DockerCli) CmdPull(args ...string) error {
 	cmd := Subcmd("pull", "NAME", "Pull an image or a repository from the registry")
 	tag := cmd.String("t", "", "Download tagged image in repository")
@@ -766,12 +780,8 @@ func (cli *DockerCli) CmdPull(args ...string) error {
 		return nil
 	}
 
-	remote := cmd.Arg(0)
-	if strings.Contains(remote, ":") {
-		remoteParts := strings.Split(remote, ":")
-		tag = &remoteParts[1]
-		remote = remoteParts[0]
-	}
+	remote, parsedTag := parseRepositoryTag(cmd.Arg(0))
+	*tag = parsedTag
 
 	v := url.Values{}
 	v.Set("fromImage", remote)