dulwich.pack.FilePackIndex : API documentation

Known subclasses: dulwich.pack.PackIndex1, dulwich.pack.PackIndex2

Pack index that is based on a file.

To do the loop it opens the file, and indexes first 256 4 byte groups with the first byte of the sha id. The value in the four byte group indexed is the end of the group that shares the same starting byte. Subtract one from the starting byte and index again to find the start of the group. The values are sorted by sha id within the group, so do the math to find the start and end offset and then bisect in to find if the value is present.

Method	__init__	Create a pack index object.
Method	path	Undocumented
Method	__eq__	Undocumented
Method	close	Undocumented
Method	__len__	Return the number of entries in this pack index.
Method	iterentries	Iterate over the entries in this pack index.
Method	check	Check that the stored checksum matches the actual checksum.
Method	calculate_checksum	Calculate the SHA1 checksum over this pack index.
Method	get_pack_checksum	Return the SHA1 checksum stored for the corresponding packfile.
Method	get_stored_checksum	Return the SHA1 checksum stored for this index.
Method	_unpack_entry	Unpack the i-th entry in the index file.
Method	_unpack_name	Unpack the i-th name from the index file.
Method	_unpack_offset	Unpack the i-th object offset from the index file.
Method	_unpack_crc32_checksum	Unpack the crc32 checksum for the ith object from the index file.
Method	_itersha	Yield all the SHA1's of the objects in the index, sorted.
Method	_read_fan_out_table	Undocumented
Method	_object_index	See object_index.

Inherited from PackIndex:

Method	__ne__	Undocumented
Method	__iter__	Iterate over the SHAs in this pack.
Method	object_index	Return the index in to the corresponding packfile for the object.
Method	object_sha1	Return the SHA1 corresponding to the index in the pack file.
Method	objects_sha1	Return the hex SHA1 over all the shas of all objects in this pack.