development/git
development/git
1
0
Fork 0
mirror of https://github.com/git/git synced 2024-07-05 00:58:49 +00:00
Code Issues Projects Releases Wiki Activity

Improved pack format documentation.

Browse Source 
While trying to implement a pack reader in Java I was mislead by
some facts listed in this documentation as well as found a few
details to be missing about the pack header.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Shawn Pearce 2006-05-29 03:17:18 -04:00 committed by Junio C Hamano
parent 2b6016263c
commit 1361fa3e49
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
Documentation/technical/pack-format.txt
View File

@ -5,8 +5,13 @@ GIT pack format
- The header appears at the beginning and consists of the following:
4-byte signature
4-byte version number (network byte order)
4-byte signature:
The signature is: {'P', 'A', 'C', 'K'}
4-byte version number (network byte order):
GIT currently accepts version number 2 or 3 but
generates version 2 only.
4-byte number of objects contained in the pack (network byte order)
Observation: we cannot have more than 4G versions ;-) and
@ -41,7 +46,7 @@ GIT pack format
8-byte integers to go beyond 4G objects per pack, but it is
not strictly necessary.
- The header is followed by sorted 28-byte entries, one entry
- The header is followed by sorted 24-byte entries, one entry
per object in the pack. Each entry is:
4-byte network byte order integer, recording where the