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<body class="manpage">
<div id="header">
<h1>
git-repack(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>git-repack -
Pack unpacked objects in a repository
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>git repack</em> [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [--window=<n>] [--depth=<n>]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>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.</p></div>
<div class="paragraph"><p>A pack is a collection of objects, individually compressed, with
delta compression applied, stored in a single file, with an
associated index file.</p></div>
<div class="paragraph"><p>Packs are used to reduce the load on mirror systems, backup
engines, disk storage, etc.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-a
</dt>
<dd>
<p>
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 <em>-d</em>. This will clean up the objects that <code>git prune</code>
leaves behind, but <code>git fsck --full --dangling</code> shows as
dangling.
</p>
<div class="paragraph"><p>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.</p></div>
</dd>
<dt class="hdlist1">
-A
</dt>
<dd>
<p>
Same as <code>-a</code>, unless <em>-d</em> 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 <em>git gc</em> invocation. See <a href="git-gc.html">git-gc(1)</a>.
</p>
</dd>
<dt class="hdlist1">
-d
</dt>
<dd>
<p>
After packing, if the newly created packs make some
existing packs redundant, remove the redundant packs.
Also run <em>git prune-packed</em> to remove redundant
loose object files.
</p>
</dd>
<dt class="hdlist1">
-l
</dt>
<dd>
<p>
Pass the <code>--local</code> option to <em>git pack-objects</em>. See
<a href="git-pack-objects.html">git-pack-objects(1)</a>.
</p>
</dd>
<dt class="hdlist1">
-f
</dt>
<dd>
<p>
Pass the <code>--no-reuse-delta</code> option to <code>git-pack-objects</code>, see
<a href="git-pack-objects.html">git-pack-objects(1)</a>.
</p>
</dd>
<dt class="hdlist1">
-F
</dt>
<dd>
<p>
Pass the <code>--no-reuse-object</code> option to <code>git-pack-objects</code>, see
<a href="git-pack-objects.html">git-pack-objects(1)</a>.
</p>
</dd>
<dt class="hdlist1">
-q
</dt>
<dd>
<p>
Pass the <code>-q</code> option to <em>git pack-objects</em>. See
<a href="git-pack-objects.html">git-pack-objects(1)</a>.
</p>
</dd>
<dt class="hdlist1">
-n
</dt>
<dd>
<p>
Do not update the server information with
<em>git update-server-info</em>. This option skips
updating local catalog files needed to publish
this repository (or a direct copy of it)
over HTTP or FTP. See <a href="git-update-server-info.html">git-update-server-info(1)</a>.
</p>
</dd>
<dt class="hdlist1">
--window=<n>
</dt>
<dt class="hdlist1">
--depth=<n>
</dt>
<dd>
<p>
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 <code>--window</code> to see if using delta compression saves
space. <code>--depth</code> 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.
</p>
</dd>
<dt class="hdlist1">
--window-memory=<n>
</dt>
<dd>
<p>
This option provides an additional limit on top of <code>--window</code>;
the window size will dynamically scale down so as to not take
up more than <em><n></em> 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".
<code>--window-memory=0</code> makes memory usage unlimited, which is the
default.
</p>
</dd>
<dt class="hdlist1">
--max-pack-size=<n>
</dt>
<dd>
<p>
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
<code>pack.packSizeLimit</code> is set.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_configuration">Configuration</h2>
<div class="sectionbody">
<div class="paragraph"><p>By default, the command passes <code>--delta-base-offset</code> option to
<em>git pack-objects</em>; 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 <code>repack.UseDeltaBaseOffset</code> 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.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p><a href="git-pack-objects.html">git-pack-objects(1)</a>
<a href="git-prune-packed.html">git-prune-packed(1)</a></p></div>
</div>
</div>
<div class="sect1">
<h2 id="_git">GIT</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated 2013-06-10 20:01:55 UTC
</div>
</div>
</body>
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