vendor containers/common@e27c30ee9b

Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

vendor/github.com/containers/common/libimage/image.go

@@ -23,6 +23,17 @@ import (
 // Image represents an image in the containers storage and allows for further
 // operations and data manipulation.
 type Image struct {
+	// ListData that is being set by (*Runtime).ListImages().  Note that
+	// the data may be outdated.
+	ListData struct {
+		// Dangling indicates if the image is dangling.  Use
+		// `IsDangling()` to compute the latest state.
+		IsDangling *bool
+		// Parent points to the parent image.  Use `Parent()` to
+		// compute the latest state.
+		Parent *Image
+	}
+
 	// Backwards pointer to the runtime.
 	runtime *Runtime
 
@@ -216,10 +227,14 @@ func (i *Image) TopLayer() string {
 
 // Parent returns the parent image or nil if there is none
 func (i *Image) Parent(ctx context.Context) (*Image, error) {
-	tree, err := i.runtime.layerTree()
+	tree, err := i.runtime.layerTree(nil)
 	if err != nil {
 		return nil, err
 	}
+	return i.parent(ctx, tree)
+}
+
+func (i *Image) parent(ctx context.Context, tree *layerTree) (*Image, error) {
 	return tree.parent(ctx, i)
 }
 
@@ -246,7 +261,7 @@ func (i *Image) Children(ctx context.Context) ([]*Image, error) {
 // created for this invocation only.
 func (i *Image) getChildren(ctx context.Context, all bool, tree *layerTree) ([]*Image, error) {
 	if tree == nil {
-		t, err := i.runtime.layerTree()
+		t, err := i.runtime.layerTree(nil)
 		if err != nil {
 			return nil, err
 		}