Understanding pack format

Hi all,

I am trying to understand the pack file format and have been reading the documentation, specifically https://git-scm.com/docs/pack-format (which is in git's own git repository as "Documentation/technical/pack-format.txt"). I see that the file starts with the "PACK" signature, followed by the 4 byte version and 4 byte number of objects. After this, the documentation speaks about Undeltified and Deltified representations. I understand conceptually what each is, but do not know specifically how git parses it out.

Can someone please explain this to me? Is there any sample code of how to interpret each entry? Where is this in the git code? That might serve as a good guide.

I see a few references to "PACK_SIGNATURE", but not certain which actually reads the data.

Thanks! -- Farhan Khan PGP Fingerprint: B28D 2726 E2BC A97E 3854 5ABE 9A9F 00BC D525 16EE