Method createAndCopy

core/metadata/content.go:556–580

(ctx context.Context, desc ocispec.Descriptor)

}

func (nw *namespacedWriter) createAndCopy(ctx context.Context, desc ocispec.Descriptor) error {
	nwDescWithoutDigest := desc
	nwDescWithoutDigest.Digest = ""
	w, err := nw.provider.Writer(ctx, content.WithRef(nw.bref), content.WithDescriptor(nwDescWithoutDigest))
	if err != nil {
		return err
	}

	if desc.Size > 0 {
		ra, err := nw.provider.ReaderAt(ctx, nw.desc)
		if err != nil {
			w.Close()
			return err
		}
		defer ra.Close()

		if err := content.CopyReaderAt(w, ra, desc.Size); err != nil {
			w.Close()
			return err
		}
	}
	nw.w = w

	return nil
}

func (nw *namespacedWriter) Commit(ctx context.Context, size int64, expected digest.Digest, opts ...content.Opt) error {
	ctx = namespaces.WithNamespace(ctx, nw.namespace)