Golang ID.String方法代码示例

func (t *mockTagAdder) AddTag(ref reference.Named, id image.ID, force bool) error {
	if t.refs == nil {
		t.refs = make(map[string]string)
	}
	t.refs[ref.String()] = id.String()
	return nil
}

// TagImageWithReference adds the given reference to the image ID provided.
func (daemon *Daemon) TagImageWithReference(imageID image.ID, newTag reference.Named) error {
	if err := daemon.referenceStore.AddTag(newTag, imageID.Digest(), true); err != nil {
		return err
	}

	daemon.LogImageEvent(imageID.String(), newTag.String(), "tag")
	return nil
}

// imageDeleteHelper attempts to delete the given image from this daemon. If
// the image has any hard delete conflicts (child images or running containers
// using the image) then it cannot be deleted. If the image has any soft delete
// conflicts (any tags/digests referencing the image or any stopped container
// using the image) then it can only be deleted if force is true. If the delete
// succeeds and prune is true, the parent images are also deleted if they do
// not have any soft or hard delete conflicts themselves. Any deleted images
// and untagged references are appended to the given records. If any error or
// conflict is encountered, it will be returned immediately without deleting
// the image. If quiet is true, any encountered conflicts will be ignored and
// the function will return nil immediately without deleting the image.
func (daemon *Daemon) imageDeleteHelper(imgID image.ID, records *[]types.ImageDelete, force, prune, quiet bool) error {
	// First, determine if this image has any conflicts. Ignore soft conflicts
	// if force is true.
	if conflict := daemon.checkImageDeleteConflict(imgID, force); conflict != nil {
		if quiet && !daemon.imageIsDangling(imgID) {
			// Ignore conflicts UNLESS the image is "dangling" in
			// which case we want the user to know.
			return nil
		}

		// There was a conflict and it's either a hard conflict OR we are not
		// forcing deletion on soft conflicts.
		return conflict
	}

	parent, err := daemon.imageStore.GetParent(imgID)
	if err != nil {
		// There may be no parent
		parent = ""
	}

	// Delete all repository tag/digest references to this image.
	if err := daemon.removeAllReferencesToImageID(imgID, records); err != nil {
		return err
	}

	removedLayers, err := daemon.imageStore.Delete(imgID)
	if err != nil {
		return err
	}

	daemon.EventsService.Log("delete", imgID.String(), "")
	*records = append(*records, types.ImageDelete{Deleted: imgID.String()})
	for _, removedLayer := range removedLayers {
		*records = append(*records, types.ImageDelete{Deleted: removedLayer.ChainID.String()})
	}

	if !prune || parent == "" {
		return nil
	}

	// We need to prune the parent image. This means delete it if there are
	// no tags/digests referencing it and there are no containers using it (
	// either running or stopped).
	// Do not force prunings, but do so quietly (stopping on any encountered
	// conflicts).
	return daemon.imageDeleteHelper(parent, records, false, true, true)
}

// removeAllReferencesToImageID attempts to remove every reference to the given
// imgID from this daemon's store of repository tag/digest references. Returns
// on the first encountered error. Removed references are logged to this
// daemon's event service. An "Untagged" types.ImageDelete is added to the
// given list of records.
func (daemon *Daemon) removeAllReferencesToImageID(imgID image.ID, records *[]types.ImageDelete) error {
	imageRefs := daemon.referenceStore.References(imgID)

	for _, imageRef := range imageRefs {
		parsedRef, err := daemon.removeImageRef(imageRef)
		if err != nil {
			return err
		}

		untaggedRecord := types.ImageDelete{Untagged: parsedRef.String()}

		daemon.LogImageEvent(imgID.String(), imgID.String(), "untag")
		*records = append(*records, untaggedRecord)
	}

	return nil
}