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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | CONFIGURATION | SEE ALSO | GIT | COLOPHON |
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GIT-REPACK(1) Git Manual GIT-REPACK(1)
git-repack - Pack unpacked objects in a repository
git repack [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [-b] [--window=<n>] [--depth=<n>] [--threads=<n>]
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.
-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.
--threads=<n>
This option is passed through to git pack-objects.
--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. The default is taken from the pack.windowMemory
configuration variable. Note that the actual memory usage will be
the limit multiplied by the number of threads used by
git-pack-objects(1).
--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, which also
prevents the creation of a bitmap index. 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 repack.writeBitmaps. This option has no effect if
multiple packfiles are created.
--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
repack.writeBitmaps, as it ensures that the bitmapped packfile
has the necessary objects.
--unpack-unreachable=<when>
When loosening unreachable objects, do not bother loosening any
objects older than <when>. This can be used to optimize out the
write of any objects that would be immediately pruned by a
follow-up git prune.
-k, --keep-unreachable
When used with -ad, any unreachable objects from existing packs
will be appended to the end of the packfile instead of being
removed. In addition, any unreachable loose objects will be
packed (and their loose counterparts removed).
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 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.
git-pack-objects(1) git-prune-packed(1)
Part of the git(1) suite
This page is part of the git (Git distributed version control system)
project. Information about the project can be found at
⟨http://git-scm.com/⟩. If you have a bug report for this manual page,
see ⟨http://git-scm.com/community⟩. This page was obtained from the
project's upstream Git repository ⟨https://github.com/git/git.git⟩ on
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2018-01-23.) If you discover any
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corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Git 2.13.2.556.g5116f7 07/05/2017 GIT-REPACK(1)
Pages that refer to this page: git(1), git-config(1), git-gc(1), git-pack-objects(1), git-pack-redundant(1), git-prune(1), git-prune-packed(1), git-unpack-objects(1)
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