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] [-b] [--window=<n>] [--depth=<n>]


DESCRIPTION
       This command 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 --dangling 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.

       -b, --write-bitmap-index
           Write a reachability bitmap index as part of the repack. This only makes sense when
           used with -a or -A, as the bitmaps must be able to refer to all reachable objects.
           This option overrides the setting of pack.writebitmaps.

       --pack-kept-objects
           Include objects in .keep files when repacking. Note that we still do not delete .keep
           packs after pack-objects finishes. This means that we may duplicate objects, but this
           makes the option safe to use when there are concurrent pushes or fetches. This option
           is generally only useful if you are writing bitmaps with -b or pack.writebitmaps, as
           it ensures that the bitmapped packfile has the necessary objects.

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



Git 2.1.4                                   05/28/2018                              GIT-REPACK(1)