git-repack
(1)
Name
git-repack - Pack unpacked objects in a repository
Synopsis
git repack [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [--window=<n>] [--depth=<n>]
Description
Git Manual GIT-REPACK(1)
NAME
git-repack - Pack unpacked objects in a repository
SYNOPSIS
git repack [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [--window=<n>] [--depth=<n>]
DESCRIPTION
This script is used to combine all objects that do not
currently reside in a "pack", into a pack. It can also be
used to re-organize existing packs into a single, more
efficient pack.
A pack is a collection of objects, individually compressed,
with delta compression applied, stored in a single file,
with an associated index file.
Packs are used to reduce the load on mirror systems, backup
engines, disk storage, etc.
OPTIONS
-a
Instead of incrementally packing the unpacked objects,
pack everything referenced into a single pack.
Especially useful when packing a repository that is used
for private development. Use with -d. This will clean up
the objects that git prune leaves behind, but git fsck
--full shows as dangling.
Note that users fetching over dumb protocols will have
to fetch the whole new pack in order to get any
contained object, no matter how many other objects in
that pack they already have locally.
-A
Same as -a, unless -d is used. Then any unreachable
objects in a previous pack become loose, unpacked
objects, instead of being left in the old pack.
Unreachable objects are never intentionally added to a
pack, even when repacking. This option prevents
unreachable objects from being immediately deleted by
way of being left in the old pack and then removed.
Instead, the loose unreachable objects will be pruned
according to normal expiry rules with the next git gc
invocation. See git-gc(1).
-d
After packing, if the newly created packs make some
existing packs redundant, remove the redundant packs.
Also run git prune-packed to remove redundant loose
object files.
Git 1.7.9.2 Last change: 02/22/2012 1
Git Manual GIT-REPACK(1)
-l
Pass the --local option to git pack-objects. See git-
pack-objects(1).
-f
Pass the --no-reuse-delta option to git-pack-objects,
see git-pack-objects(1).
-F
Pass the --no-reuse-object option to git-pack-objects,
see git-pack-objects(1).
-q
Pass the -q option to git pack-objects. See git-pack-
objects(1).
-n
Do not update the server information with git
update-server-info. This option skips updating local
catalog files needed to publish this repository (or a
direct copy of it) over HTTP or FTP. See git-update-
server-info(1).
--window=<n>, --depth=<n>
These two options affect how the objects contained in
the pack are stored using delta compression. The objects
are first internally sorted by type, size and optionally
names and compared against the other objects within
--window to see if using delta compression saves space.
--depth limits the maximum delta depth; making it too
deep affects the performance on the unpacker side,
because delta data needs to be applied that many times
to get to the necessary object. The default value for
--window is 10 and --depth is 50.
--window-memory=<n>
This option provides an additional limit on top of
--window; the window size will dynamically scale down so
as to not take up more than <n> bytes in memory. This is
useful in repositories with a mix of large and small
objects to not run out of memory with a large window,
but still be able to take advantage of the large window
for the smaller objects. The size can be suffixed with
"k", "m", or "g". --window-memory=0 makes memory usage
unlimited, which is the default.
--max-pack-size=<n>
Maximum size of each output pack file. The size can be
suffixed with "k", "m", or "g". The minimum size allowed
is limited to 1 MiB. If specified, multiple packfiles
may be created. The default is unlimited, unless the
config variable pack.packSizeLimit is set.
Git 1.7.9.2 Last change: 02/22/2012 2
Git Manual GIT-REPACK(1)
CONFIGURATION
By default, the command passes --delta-base-offset option to
git pack-objects; this typically results in slightly smaller
packs, but the generated packs are incompatible with
versions of Git older than version 1.4.4. If you need to
share your repository with such ancient Git versions, either
directly or via the dumb http or rsync protocol, then you
need to set the configuration variable
repack.UseDeltaBaseOffset to "false" and repack. Access from
old Git versions over the native protocol is unaffected by
this option as the conversion is performed on the fly as
needed in that case.
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | developer/versioning/git |
+---------------+--------------------------+
|Stability | Uncommitted |
+---------------+--------------------------+
SEE ALSO
git-pack-objects(1) git-prune-packed(1)
GIT
Part of the git(1) suite
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from http://git-
core.googlecode.com/files/git-1.7.9.2.tar.gz
Further information about this software can be found on the
open source community website at http://git-scm.com/.
Git 1.7.9.2 Last change: 02/22/2012 3