Function useDescriptorData

core/content/helpers.go:68–76

(desc ocispec.Descriptor)

func (*nopCloserSectionReader) Close() error { return nil }

func useDescriptorData(desc ocispec.Descriptor) (bool, error) {
	if int64(len(desc.Data)) != desc.Size {
		return false, nil
	}
	if err := desc.Digest.Validate(); err != nil {
		return false, fmt.Errorf("invalid descriptor digest: %w", err)
	}
	return desc.Digest.Algorithm().FromBytes(desc.Data) == desc.Digest, nil
}

// BlobReadSeeker returns a read seeker for the blob from the provider.
func BlobReadSeeker(ctx context.Context, provider Provider, desc ocispec.Descriptor) (io.ReadSeekCloser, error) {