07ff4f1de8
Format the source according to latest goimports. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com> Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package metadata // import "github.com/docker/docker/distribution/metadata"
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import (
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v1 "github.com/docker/docker/image/v1"
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"github.com/docker/docker/layer"
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"github.com/pkg/errors"
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)
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// V1IDService maps v1 IDs to layers on disk.
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type V1IDService struct {
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store Store
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}
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// NewV1IDService creates a new V1 ID mapping service.
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func NewV1IDService(store Store) *V1IDService {
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return &V1IDService{
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store: store,
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}
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}
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// namespace returns the namespace used by this service.
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func (idserv *V1IDService) namespace() string {
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return "v1id"
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}
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// Get finds a layer by its V1 ID.
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func (idserv *V1IDService) Get(v1ID, registry string) (layer.DiffID, error) {
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if idserv.store == nil {
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return "", errors.New("no v1IDService storage")
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}
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if err := v1.ValidateID(v1ID); err != nil {
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return layer.DiffID(""), err
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}
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idBytes, err := idserv.store.Get(idserv.namespace(), registry+","+v1ID)
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if err != nil {
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return layer.DiffID(""), err
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}
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return layer.DiffID(idBytes), nil
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}
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// Set associates an image with a V1 ID.
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func (idserv *V1IDService) Set(v1ID, registry string, id layer.DiffID) error {
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if idserv.store == nil {
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return nil
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}
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if err := v1.ValidateID(v1ID); err != nil {
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return err
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}
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return idserv.store.Set(idserv.namespace(), registry+","+v1ID, []byte(id))
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}
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