func getOrCreateTag(store *storage.Storage, tagName string) (*entities.Tag, error) {
tag, err := store.TagByName(tagName)
if err != nil {
return nil, fmt.Errorf("could not look up tag '%v': %v", tagName, err)
}
if tag == nil {
tag, err = store.AddTag(tagName)
if err != nil {
return nil, fmt.Errorf("could not create tag '%v': %v", tagName, err)
}
log.Warnf("New tag '%v'.", tagName)
}
return tag, nil
}
func (command TagCommand) lookupTagIds(store *storage.Storage, names []string) ([]uint, error) {
tags, err := store.TagsByNames(names)
if err != nil {
return nil, fmt.Errorf("could not retrieve tags %v: %v", names, err)
}
for _, name := range names {
if !tags.Any(func(tag *database.Tag) bool { return tag.Name == name }) {
log.Infof("New tag '%v'.", name)
tag, err := store.AddTag(name)
if err != nil {
return nil, fmt.Errorf("could not add tag '%v': %v", name, err)
}
tags = append(tags, tag)
}
}
if command.verbose {
log.Infof("retrieving tag implications")
}
tagIds := make([]uint, len(tags))
for index, tag := range tags {
tagIds[index] = tag.Id
}
implications, err := store.ImplicationsForTags(tagIds...)
if err != nil {
return nil, fmt.Errorf("could not retrieve implied tags: %v", err)
}
for _, implication := range implications {
if !contains(tagIds, implication.ImpliedTag.Id) {
log.Infof("tag '%v' is implied.", implication.ImpliedTag.Name)
tagIds = append(tagIds, implication.ImpliedTag.Id)
}
}
return tagIds, nil
}
