dotcloud/docker

package images

import (
    "context"
    "errors"

    "github.com/docker/docker/container"
    "github.com/docker/docker/pkg/archive"
)

func (i *ImageService) Changes(ctx context.Context, container *container.Container) ([]archive.Change, error) {
    container.Lock()
    defer container.Unlock()

    if container.RWLayer == nil {
        return nil, errors.New("RWLayer of container " + container.Name + " is unexpectedly nil")
    }
    return container.RWLayer.Changes()
}