Function cached_hash

src/borg/archive.py:1181–1197

(chunk, id_hash)

def cached_hash(chunk, id_hash):
    allocation = chunk.meta["allocation"]
    if allocation == CH_DATA:
        data = chunk.data
        chunk_id = id_hash(data)
    elif allocation in (CH_HOLE, CH_ALLOC):
        size = chunk.meta["size"]
        assert size <= len(zeros)
        data = memoryview(zeros)[:size]
        try:
            chunk_id = zero_chunk_ids[(id_hash, size)]
        except KeyError:
            chunk_id = id_hash(data)
            zero_chunk_ids[(id_hash, size)] = chunk_id
    else:
        raise ValueError("unexpected allocation type")
    return chunk_id, data


class ChunksProcessor: