image/tarexport/tarexport.go
package tarexport // import "github.com/docker/docker/image/tarexport"
import (
"github.com/docker/distribution"
"github.com/docker/docker/api/types/events"
"github.com/docker/docker/image"
"github.com/docker/docker/layer"
refstore "github.com/docker/docker/reference"
)
const (
manifestFileName = "manifest.json"
legacyLayerFileName = "layer.tar"
legacyConfigFileName = "json"
legacyRepositoriesFileName = "repositories"
)
type manifestItem struct {
Config string
RepoTags []string
Layers []string
Parent image.ID `json:",omitempty"`
LayerSources map[layer.DiffID]distribution.Descriptor `json:",omitempty"`
}
type tarexporter struct {
is image.Store
lss layer.Store
rs refstore.Store
loggerImgEvent LogImageEvent
}
// LogImageEvent defines interface for event generation related to image tar(load and save) operations
type LogImageEvent interface {
// LogImageEvent generates an event related to an image operation
LogImageEvent(imageID, refName string, action events.Action)
}
// NewTarExporter returns new Exporter for tar packages
func NewTarExporter(is image.Store, lss layer.Store, rs refstore.Store, loggerImgEvent LogImageEvent) image.Exporter {
return &tarexporter{
is: is,
lss: lss,
rs: rs,
loggerImgEvent: loggerImgEvent,
}
}