12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576 |
- package daemon
- import (
- "fmt"
- "github.com/docker/distribution/reference"
- "github.com/docker/docker/image"
- "github.com/docker/docker/pkg/stringid"
- )
- // ErrImageDoesNotExist is error returned when no image can be found for a reference.
- type ErrImageDoesNotExist struct {
- ref reference.Reference
- }
- func (e ErrImageDoesNotExist) Error() string {
- ref := e.ref
- if named, ok := ref.(reference.Named); ok {
- ref = reference.TagNameOnly(named)
- }
- return fmt.Sprintf("No such image: %s", reference.FamiliarString(ref))
- }
- // GetImageID returns an image ID corresponding to the image referred to by
- // refOrID.
- func (daemon *Daemon) GetImageID(refOrID string) (image.ID, error) {
- ref, err := reference.ParseAnyReference(refOrID)
- if err != nil {
- return "", err
- }
- namedRef, ok := ref.(reference.Named)
- if !ok {
- digested, ok := ref.(reference.Digested)
- if !ok {
- return "", ErrImageDoesNotExist{ref}
- }
- id := image.IDFromDigest(digested.Digest())
- if _, err := daemon.imageStore.Get(id); err != nil {
- return "", ErrImageDoesNotExist{ref}
- }
- return id, nil
- }
- if id, err := daemon.referenceStore.Get(namedRef); err == nil {
- return image.IDFromDigest(id), nil
- }
- // deprecated: repo:shortid https://github.com/docker/docker/pull/799
- if tagged, ok := namedRef.(reference.Tagged); ok {
- if tag := tagged.Tag(); stringid.IsShortID(stringid.TruncateID(tag)) {
- if id, err := daemon.imageStore.Search(tag); err == nil {
- for _, storeRef := range daemon.referenceStore.References(id.Digest()) {
- if storeRef.Name() == namedRef.Name() {
- return id, nil
- }
- }
- }
- }
- }
- // Search based on ID
- if id, err := daemon.imageStore.Search(refOrID); err == nil {
- return id, nil
- }
- return "", ErrImageDoesNotExist{ref}
- }
- // GetImage returns an image corresponding to the image referred to by refOrID.
- func (daemon *Daemon) GetImage(refOrID string) (*image.Image, error) {
- imgID, err := daemon.GetImageID(refOrID)
- if err != nil {
- return nil, err
- }
- return daemon.imageStore.Get(imgID)
- }
|