Function BlobReadSeeker

core/content/helpers.go:79–93

BlobReadSeeker returns a read seeker for the blob from the provider.

(ctx context.Context, provider Provider, desc ocispec.Descriptor)

// BlobReadSeeker returns a read seeker for the blob from the provider.
func BlobReadSeeker(ctx context.Context, provider Provider, desc ocispec.Descriptor) (io.ReadSeekCloser, error) {
	useData, err := useDescriptorData(desc)
	if err != nil {
		return nil, err
	}
	if useData {
		return &nopCloserBytesReader{bytes.NewReader(desc.Data)}, nil
	}

	ra, err := provider.ReaderAt(ctx, desc)
	if err != nil {
		return nil, err
	}
	return &nopCloserSectionReader{io.NewSectionReader(ra, 0, ra.Size())}, nil
}

// ReadBlob retrieves the entire contents of the blob from the provider.
//