dulwich.pack.DeltaChainIterator

Abstract iterator over pack data based on delta chains.

Each object in the pack is guaranteed to be inflated exactly once, regardless of how many objects reference it as a delta base. As a result, memory usage is proportional to the length of the longest delta chain.

Subclasses can override _result to define the result type of the iterator. By default, results are UnpackedObjects with the following members set:

• offset
• obj_type_num
• obj_chunks
• pack_type_num
• delta_base (for delta types)
• comp_chunks (if _include_comp is True)
• decomp_chunks
• decomp_len
• crc32 (if _compute_crc32 is True)