From: Junio C Hamano <junio@hera.kernel.org>
Date: Mon, 7 Apr 2008 06:14:15 +0000 (+0000)
Subject: Autogenerated HTML docs for v1.5.5-rc3-13-ga1c0
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=c41cdd1c89c92a7d54f6bc2a0bdf9f6b71ec5800;p=git.git

Autogenerated HTML docs for v1.5.5-rc3-13-ga1c0
---

diff --git a/technical/pack-format.txt b/technical/pack-format.txt
index aa87756a5..1803e64e4 100644
--- a/technical/pack-format.txt
+++ b/technical/pack-format.txt
@@ -103,10 +103,24 @@ Pack file entry: <+
      packed object data:
         If it is not DELTA, then deflated bytes (the size above
 		is the size before compression).
-	If it is DELTA, then
+	If it is REF_DELTA, then
 	  20-byte base object name SHA1 (the size above is the
 		size of the delta data that follows).
           delta data, deflated.
+	If it is OFS_DELTA, then
+	  n-byte offset (see below) interpreted as a negative
+		offset from the type-byte of the header of the
+		ofs-delta entry (the size above is the size of
+		the delta data that follows).
+	  delta data, deflated.
+
+     offset encoding:
+	  n bytes with MSB set in all but the last one.
+	  The offset is then the number constructed by
+	  concatenating the lower 7 bit of each byte, and
+	  for n >= 2 adding 2^7 + 2^14 + ... + 2^(7*(n-1))
+	  to the result.
+
 
 
 = Version 2 pack-*.idx files support packs larger than 4 GiB, and