// WaitForAnImageStream waits for an ImageStream to fulfill the isOK function
func WaitForAnImageStream(client client.ImageStreamInterface,
name string,
isOK, isFailed func(*imageapi.ImageStream) bool) error {
for {
list, err := client.List(kapi.ListOptions{FieldSelector: fields.Set{"name": name}.AsSelector()})
if err != nil {
return err
}
for i := range list.Items {
if isOK(&list.Items[i]) {
return nil
}
if isFailed(&list.Items[i]) {
return fmt.Errorf("The image stream %q status is %q",
name, list.Items[i].Annotations[imageapi.DockerImageRepositoryCheckAnnotation])
}
}
rv := list.ResourceVersion
w, err := client.Watch(kapi.ListOptions{FieldSelector: fields.Set{"name": name}.AsSelector(), ResourceVersion: rv})
if err != nil {
return err
}
defer w.Stop()
for {
val, ok := <-w.ResultChan()
if !ok {
// reget and re-watch
break
}
if e, ok := val.Object.(*imageapi.ImageStream); ok {
if isOK(e) {
return nil
}
if isFailed(e) {
return fmt.Errorf("The image stream %q status is %q",
name, e.Annotations[imageapi.DockerImageRepositoryCheckAnnotation])
}
}
}
}
}