Reads list of objects from the standard input, and writes a packed
archive with specified base-name, or to the standard output.
-A packed archive is an efficient way to transfer set of objects
-between two repositories, and also is an archival format which
-is efficient to access. The packed archive format (.pack) is
-designed to be self contained so that it can be unpacked without
-any further information, but for fast, random access to the objects
-in the pack, a pack index file (.idx) will be generated.
-Placing both in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
+A packed archive is an efficient way to transfer a set of objects
+between two repositories as well as an access efficient archival
+format. In a packed archive, an object is either stored as a
+compressed whole or as a difference from some other object.
+The latter is often called a delta.
+The packed archive format (.pack) is designed to be self-contained
+so that it can be unpacked without any further information. Therefore,
+each object that a delta depends upon must be present within the pack.
+A pack index file (.idx) is generated for fast, random access to the
+objects in the pack. Placing both the index file (.idx) and the packed
+archive (.pack) in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES)
-enables git to read from
such an archive.
+enables git to read from archive.
The 'git unpack-objects' command can read the packed archive and
expand the objects contained in the pack into "one-file
commands when a pack is created on-the-fly for efficient network
transport by their peers.
-In a packed archive, an object is either stored as a compressed
-whole, or as a difference from some other object. The latter is
Add --no-reuse-object if you want to force a uniform compression
level on all data no matter the source.
+ Create a "thin" pack by omitting the common objects between a
+ sender and a receiver in order to reduce network transfer. This
+ option only makes sense in conjunction with --stdout.
+Note: A thin pack violates the packed archive format by omitting
+required objects and is thus unusable by git without making it
+self-contained. Use `git index-pack --fix-thin`
+(see linkgit:git-index-pack) to restore the self-contained property.
A packed archive can express base object of a delta as
either 20-byte object name or as an offset in the