GIT-REPACK(1)                                                    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.


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


GIT
       Part of the git(1) suite




                                                                 GIT-REPACK(1)
