name. This is the only chunk not guaranteed to be a multiple of four
bytes in length, so should be the last chunk for alignment reasons.
- (This section intentionally left incomplete.)
+ OID Fanout (ID: {'O', 'I', 'D', 'F'})
+ The ith entry, F[i], stores the number of OIDs with first
+ byte at most i. Thus F[255] stores the total
+ number of objects.
+
+ OID Lookup (ID: {'O', 'I', 'D', 'L'})
+ The OIDs for all objects in the MIDX are stored in lexicographic
+ order in this chunk.
+
+ Object Offsets (ID: {'O', 'O', 'F', 'F'})
+ Stores two 4-byte values for every object.
+ 1: The pack-int-id for the pack storing this object.
+ 2: The offset within the pack.
+ If all offsets are less than 2^31, then the large offset chunk
+ will not exist and offsets are stored as in IDX v1.
+ If there is at least one offset value larger than 2^32-1, then
+ the large offset chunk must exist. If the large offset chunk
+ exists and the 31st bit is on, then removing that bit reveals
+ the row in the large offsets containing the 8-byte offset of
+ this object.
+
+ [Optional] Object Large Offsets (ID: {'L', 'O', 'F', 'F'})
+ 8-byte offsets into large packfiles.
TRAILER: