Method Walk

core/metadata/content.go:151–202

(ctx context.Context, fn content.WalkFunc, fs ...string)

}

func (cs *contentStore) Walk(ctx context.Context, fn content.WalkFunc, fs ...string) error {
	ns, err := namespaces.NamespaceRequired(ctx)
	if err != nil {
		return err
	}

	filter, err := filters.ParseAll(fs...)
	if err != nil {
		return err
	}

	// TODO: Batch results to keep from reading all info into memory
	var infos []content.Info
	if err := view(ctx, cs.db, func(tx *bolt.Tx) error {
		bkt := getBlobsBucket(tx, ns)
		if bkt == nil {
			return nil
		}

		return bkt.ForEach(func(k, v []byte) error {
			dgst, err := digest.Parse(string(k))
			if err != nil {
				// Not a digest, skip
				return nil
			}
			bbkt := bkt.Bucket(k)
			if bbkt == nil {
				return nil
			}
			info := content.Info{
				Digest: dgst,
			}
			if err := readInfo(&info, bkt.Bucket(k)); err != nil {
				return err
			}
			if filter.Match(content.AdaptInfo(info)) {
				infos = append(infos, info)
			}
			return nil
		})
	}); err != nil {
		return err
	}

	for _, info := range infos {
		if err := fn(info); err != nil {
			return err
		}
	}

	return nil
}

func (cs *contentStore) Delete(ctx context.Context, dgst digest.Digest) error {
	ns, err := namespaces.NamespaceRequired(ctx)