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* [PATCH 1/2] pack-objects: document --delta-base-offset option
@ 2006-10-13  5:35 Junio C Hamano
  2006-10-13  5:35 ` [PATCH 2/2] git-repack: -b to pass --delta-base-offset Junio C Hamano
  0 siblings, 1 reply; 10+ messages in thread
From: Junio C Hamano @ 2006-10-13  5:35 UTC (permalink / raw)
  To: GIT Mailing List; +Cc: Nicolas Pitre

Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 Documentation/git-pack-objects.txt |   13 ++++++++++++-
 builtin-pack-objects.c             |    2 +-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt
index d4661dd..5788709 100644
--- a/Documentation/git-pack-objects.txt
+++ b/Documentation/git-pack-objects.txt
@@ -9,7 +9,7 @@ git-pack-objects - Create a packed archi
 SYNOPSIS
 --------
 [verse]
-'git-pack-objects' [-q] [--no-reuse-delta] [--non-empty]
+'git-pack-objects' [-q] [--no-reuse-delta] [--delta-base-offset] [--non-empty]
 	[--local] [--incremental] [--window=N] [--depth=N]
 	[--revs [--unpacked | --all]*] [--stdout | base-name] < object-list
 
@@ -110,6 +110,17 @@ base-name::
 	This flag tells the command not to reuse existing deltas
 	but compute them from scratch.
 
+--delta-base-offset::
+	A packed archive can express base object of a delta as
+	either 20-byte object name or as an offset in the
+	stream, but older version of git does not understand the
+	latter.  By default, git-pack-objects only uses the
+	former format for better compatibility.  This option
+	allows the command to use the latter format for
+	compactness.  Depending on the average delta chain
+	length, this option typically shrinks the resulting
+	packfile by 3-5 per-cent.
+
 
 Author
 ------
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index ee5f031..41e1e74 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -15,7 +15,7 @@ #include "list-objects.h"
 #include <sys/time.h>
 #include <signal.h>
 
-static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] [--revs [--unpacked | --all]*] [--stdout | base-name] <ref-list | <object-list]";
+static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--delta-base-offset] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] [--revs [--unpacked | --all]*] [--stdout | base-name] <ref-list | <object-list]";
 
 struct object_entry {
 	unsigned char sha1[20];
-- 
1.4.3.rc2.g51ca

^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2006-10-13 22:11 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-10-13  5:35 [PATCH 1/2] pack-objects: document --delta-base-offset option Junio C Hamano
2006-10-13  5:35 ` [PATCH 2/2] git-repack: -b to pass --delta-base-offset Junio C Hamano
2006-10-13 13:20   ` Nicolas Pitre
2006-10-13 13:51     ` Jakub Narebski
2006-10-13 21:22     ` Junio C Hamano
2006-10-13 21:29       ` Jakub Narebski
2006-10-13 21:58       ` Nicolas Pitre
2006-10-13 22:11         ` Junio C Hamano
2006-10-13 18:05   ` Horst H. von Brand
2006-10-13 18:29     ` Nicolas Pitre

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