if the image is unnamed, pass an nil slice to the parse repotags function instead of getting the image name by index.
after this patch, unnamed images will be shown as <none>
```
Images space usage:
REPOSITORY TAG IMAGE ID CREATED SIZE SHARED SIZE UNIQUE SIZE CONTAINERS
docker.io/library/ubuntu bionic 3556258649b2 11 days ago 66.6MB 0B 66.6MB 0
<none> <none> dd8a8db2c79b 11 days ago 986MB 66.6MB 919MB 0
```
Signed-off-by: Qi Wang <qiwan@redhat.com>
Add a context.Context parameter to Image.GetParent(), Image.IsParent(),
Image.GetChildren(), Image.Remove(), and Runtime.PruneImages().
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
In cases where the remote client culls options to a command, we need to
be sure that the lookup for that flag does not result in a nil pointer.
To do so, we add a Remote attribute to the podman struct and then cli
helper funcs are now aware they are remote.
Signed-off-by: baude <bbaude@redhat.com>
fix typo in Containers space usage: of podman system df -v, add a space for created time Change format string to const
Signed-off-by: Qi Wang <qiwan@redhat.com>
