Improved pack format documentation.

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 коммит произвёл Junio C Hamano
Родитель 2b6016263c
Коммит 1361fa3e49
1 изменённых файлов: 8 добавлений и 3 удалений

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@ -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