podman image prune -- implement all flag

we now, by default, only prune dangling images.  if --all is passed, we
prune dangling images AND images that do not have an associated containers.

also went ahead and enabled the podman-remote image prune side of things.

Fixes: #2192

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 4 insertions, 13 deletions

diff --git a/pkg/varlinkapi/images.go b/pkg/varlinkapi/images.go
index 744f031c0..d6a9b7301 100644
--- a/pkg/varlinkapi/images.go
+++ b/pkg/varlinkapi/images.go
@@ -627,19 +627,10 @@ func (i *LibpodAPI) ContainerRunlabel(call iopodman.VarlinkCall, input iopodman.
 }
 
 // ImagesPrune ....
-func (i *LibpodAPI) ImagesPrune(call iopodman.VarlinkCall) error {
-	var (
-		pruned []string
-	)
-	pruneImages, err := i.Runtime.ImageRuntime().GetPruneImages()
+func (i *LibpodAPI) ImagesPrune(call iopodman.VarlinkCall, all bool) error {
+	prunedImages, err := i.Runtime.ImageRuntime().PruneImages(all)
 	if err != nil {
-		return err
-	}
-	for _, i := range pruneImages {
-		if err := i.Remove(true); err != nil {
-			return call.ReplyErrorOccurred(err.Error())
-		}
-		pruned = append(pruned, i.ID())
+		return call.ReplyErrorOccurred(err.Error())
 	}
-	return call.ReplyImagesPrune(pruned)
+	return call.ReplyImagesPrune(prunedImages)
 }