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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.

SEE ALSO

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

GIT

       Part of the git(1) suite