GIT-REPACK(1)                                              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.

       -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.

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.

AUTHOR
       Written by Linus Torvalds <torvaldsATosdl.org[1]>

DOCUMENTATION
       Documentation by Ryan Anderson <ryanATmichonline.com[2]>

SEE ALSO
       git-pack-objects(1) git-prune-packed(1)

GIT
       Part of the git(1) suite

NOTES
        1. torvaldsATosdl.org
           mailto:torvaldsATosdl.org

        2. ryanATmichonline.com
           mailto:ryanATmichonline.com



Git 1.7.4.4                                                04/11/2011                                              GIT-REPACK(1)