// SetDigest creates a digest reference to an image ID.
func (store *TagStore) SetDigest(repoName, digest, imageName string) error {
img, err := store.LookupImage(imageName)
if err != nil {
return err
}
if err := validateRepoName(repoName); err != nil {
return err
}
if err := validateDigest(digest); err != nil {
return err
}
store.Lock()
defer store.Unlock()
if err := store.reload(); err != nil {
return err
}
repoName = registry.NormalizeLocalName(repoName)
repoRefs, exists := store.Repositories[repoName]
if !exists {
repoRefs = Repository{}
store.Repositories[repoName] = repoRefs
} else if oldID, exists := repoRefs[digest]; exists && oldID != img.ID {
return fmt.Errorf("Conflict: Digest %s is already set to image %s", digest, oldID)
}
repoRefs[digest] = img.ID
return store.save()
}
func (store *TagStore) Delete(repoName, ref string) (bool, error) {
store.Lock()
defer store.Unlock()
deleted := false
if err := store.reload(); err != nil {
return false, err
}
repoName = registry.NormalizeLocalName(repoName)
if ref == "" {
// Delete the whole repository.
delete(store.Repositories, repoName)
return true, store.save()
}
repoRefs, exists := store.Repositories[repoName]
if !exists {
return false, fmt.Errorf("No such repository: %s", repoName)
}
if _, exists := repoRefs[ref]; exists {
delete(repoRefs, ref)
if len(repoRefs) == 0 {
delete(store.Repositories, repoName)
}
deleted = true
}
return deleted, store.save()
}
func (store *TagStore) Get(repoName string) (Repository, error) {
store.Lock()
defer store.Unlock()
if err := store.reload(); err != nil {
return nil, err
}
repoName = registry.NormalizeLocalName(repoName)
if r, exists := store.Repositories[repoName]; exists {
return r, nil
}
return nil, nil
}
func (store *TagStore) SetLoad(repoName, tag, imageName string, force bool, out io.Writer) error {
img, err := store.LookupImage(imageName)
store.Lock()
defer store.Unlock()
if err != nil {
return err
}
if tag == "" {
tag = tags.DEFAULTTAG
}
if err := validateRepoName(repoName); err != nil {
return err
}
if err := tags.ValidateTagName(tag); err != nil {
return err
}
if err := store.reload(); err != nil {
return err
}
var repo Repository
repoName = registry.NormalizeLocalName(repoName)
if r, exists := store.Repositories[repoName]; exists {
repo = r
if old, exists := store.Repositories[repoName][tag]; exists {
if !force {
return fmt.Errorf("Conflict: Tag %s is already set to image %s, if you want to replace it, please use -f option", tag, old)
}
if old != img.ID && out != nil {
fmt.Fprintf(out, "The image %s:%s already exists, renaming the old one with ID %s to empty string\n", repoName, tag, old[:12])
}
}
} else {
repo = make(map[string]string)
store.Repositories[repoName] = repo
}
repo[tag] = img.ID
return store.save()
}