356df5d18e
Refactored rmi, images, diff, and history. Made fixes to kpod images in the way it was handing the templates as well as printing the image names Signed-off-by: umohnani8 <umohnani@redhat.com>
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package libpod
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import (
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"github.com/containers/storage/pkg/archive"
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"github.com/kubernetes-incubator/cri-o/libpod/layers"
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"github.com/pkg/errors"
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)
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// GetDiff returns the differences between the two images, layers, or containers
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func (r *Runtime) GetDiff(from, to string) ([]archive.Change, error) {
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toLayer, err := r.getLayerID(to)
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if err != nil {
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return nil, err
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}
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fromLayer := ""
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if from != "" {
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fromLayer, err = r.getLayerID(from)
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if err != nil {
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return nil, err
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}
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}
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return r.store.Changes(fromLayer, toLayer)
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}
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// GetLayerID gets a full layer id given a full or partial id
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// If the id matches a container or image, the id of the top layer is returned
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// If the id matches a layer, the top layer id is returned
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func (r *Runtime) getLayerID(id string) (string, error) {
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var toLayer string
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toImage, err := r.GetImage(id)
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if err != nil {
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toCtr, err := r.store.Container(id)
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if err != nil {
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toLayer, err = layers.FullID(r.store, id)
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if err != nil {
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return "", errors.Errorf("layer, image, or container %s does not exist", id)
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}
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} else {
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toLayer = toCtr.LayerID
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}
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} else {
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toLayer = toImage.TopLayer
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}
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return toLayer, nil
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}
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func (r *Runtime) getLayerParent(layerID string) (string, error) {
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layer, err := r.store.Layer(layerID)
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if err != nil {
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return "", err
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}
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return layer.Parent, nil
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}
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