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<title>git-repack(1)</title> | |
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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] [-b] [--window=<n>] [--depth=<n>] [--threads=<n>] [--keep-pack=<pack-name>]</pre> | |
<div class="attribution"> | |
</div></div> | |
</div> | |
</div> | |
<div class="sect1"> | |
<h2 id="_description">DESCRIPTION</h2> | |
<div class="sectionbody"> | |
<div class="paragraph"><p>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.</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 <code>-d</code>. 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> | |
<div class="paragraph"><p>Promisor packfiles are repacked separately: if there are packfiles that | |
have an associated ".promisor" file, these packfiles will be repacked | |
into another separate pack, and an empty ".promisor" file corresponding | |
to the new separate pack will be written.</p></div> | |
</dd> | |
<dt class="hdlist1"> | |
-A | |
</dt> | |
<dd> | |
<p> | |
Same as <code>-a</code>, unless <code>-d</code> 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. | |
</p> | |
<div class="paragraph"><p>The default value for --window is 10 and --depth is 50. The maximum | |
depth is 4095.</p></div> | |
</dd> | |
<dt class="hdlist1"> | |
--threads=<n> | |
</dt> | |
<dd> | |
<p> | |
This option is passed through to <code>git pack-objects</code>. | |
</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. The default | |
is taken from the <code>pack.windowMemory</code> configuration variable. | |
Note that the actual memory usage will be the limit multiplied | |
by the number of threads used by <a href="git-pack-objects.html">git-pack-objects(1)</a>. | |
</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, which also | |
prevents the creation of a bitmap index. | |
The default is unlimited, unless the config variable | |
<code>pack.packSizeLimit</code> is set. | |
</p> | |
</dd> | |
<dt class="hdlist1"> | |
-b | |
</dt> | |
<dt class="hdlist1"> | |
--write-bitmap-index | |
</dt> | |
<dd> | |
<p> | |
Write a reachability bitmap index as part of the repack. This | |
only makes sense when used with <code>-a</code> or <code>-A</code>, as the bitmaps | |
must be able to refer to all reachable objects. This option | |
overrides the setting of <code>repack.writeBitmaps</code>. This option | |
has no effect if multiple packfiles are created. | |
</p> | |
</dd> | |
<dt class="hdlist1"> | |
--pack-kept-objects | |
</dt> | |
<dd> | |
<p> | |
Include objects in <code>.keep</code> files when repacking. Note that we | |
still do not delete <code>.keep</code> packs after <code>pack-objects</code> 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 <code>-b</code> or <code>repack.writeBitmaps</code>, as it ensures that the | |
bitmapped packfile has the necessary objects. | |
</p> | |
</dd> | |
<dt class="hdlist1"> | |
--keep-pack=<pack-name> | |
</dt> | |
<dd> | |
<p> | |
Exclude the given pack from repacking. This is the equivalent | |
of having <code>.keep</code> file on the pack. <code><pack-name></code> is the the | |
pack file name without leading directory (e.g. <code>pack-123.pack</code>). | |
The option could be specified multiple times to keep multiple | |
packs. | |
</p> | |
</dd> | |
<dt class="hdlist1"> | |
--unpack-unreachable=<when> | |
</dt> | |
<dd> | |
<p> | |
When loosening unreachable objects, do not bother loosening any | |
objects older than <code><when></code>. This can be used to optimize out | |
the write of any objects that would be immediately pruned by | |
a follow-up <code>git prune</code>. | |
</p> | |
</dd> | |
<dt class="hdlist1"> | |
-k | |
</dt> | |
<dt class="hdlist1"> | |
--keep-unreachable | |
</dt> | |
<dd> | |
<p> | |
When used with <code>-ad</code>, 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). | |
</p> | |
</dd> | |
<dt class="hdlist1"> | |
-i | |
</dt> | |
<dt class="hdlist1"> | |
--delta-islands | |
</dt> | |
<dd> | |
<p> | |
Pass the <code>--delta-islands</code> option to <code>git-pack-objects</code>, see | |
<a href="git-pack-objects.html">git-pack-objects(1)</a>. | |
</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 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 | |
2018-09-17 15:45:24 PDT | |
</div> | |
</div> | |
</body> | |
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