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 402 </head>
 403 <body>
 404 <div id="header">
 405 <h1>
 406 git-repack(1) Manual Page
 407 </h1>
 408 <h2>NAME</h2>
 409 <div class="sectionbody">
 410 <p>git-repack -
 411    Pack unpacked objects in a repository
 412 </p>
 413 </div>
 414 </div>
 415 <h2 id="_synopsis">SYNOPSIS</h2>
 416 <div class="sectionbody">
 417 <div class="paragraph"><p><em>git repack</em> [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [--window=&lt;n&gt;] [--depth=&lt;n&gt;]</p></div>
 418 </div>
 419 <h2 id="_description">DESCRIPTION</h2>
 420 <div class="sectionbody">
 421 <div class="paragraph"><p>This script is used to combine all objects that do not currently
 422 reside in a "pack", into a pack.  It can also be used to re-organize
 423 existing packs into a single, more efficient pack.</p></div>
 424 <div class="paragraph"><p>A pack is a collection of objects, individually compressed, with
 425 delta compression applied, stored in a single file, with an
 426 associated index file.</p></div>
 427 <div class="paragraph"><p>Packs are used to reduce the load on mirror systems, backup
 428 engines, disk storage, etc.</p></div>
 429 </div>
 430 <h2 id="_options">OPTIONS</h2>
 431 <div class="sectionbody">
 432 <div class="dlist"><dl>
 433 <dt class="hdlist1">
 434 -a
 435 </dt>
 436 <dd>
 437 <p>
 438         Instead of incrementally packing the unpacked objects,
 439         pack everything referenced into a single pack.
 440         Especially useful when packing a repository that is used
 441         for private development. Use
 442         with <em>-d</em>.  This will clean up the objects that <tt>git prune</tt>
 443         leaves behind, but <tt>git fsck --full</tt> shows as
 444         dangling.
 445 </p>
 446 <div class="paragraph"><p>Note that users fetching over dumb protocols will have to fetch the
 447 whole new pack in order to get any contained object, no matter how many
 448 other objects in that pack they already have locally.</p></div>
 449 </dd>
 450 <dt class="hdlist1">
 451 -A
 452 </dt>
 453 <dd>
 454 <p>
 455         Same as <tt>-a</tt>, unless <em>-d</em> is used.  Then any unreachable
 456         objects in a previous pack become loose, unpacked objects,
 457         instead of being left in the old pack.  Unreachable objects
 458         are never intentionally added to a pack, even when repacking.
 459         This option prevents unreachable objects from being immediately
 460         deleted by way of being left in the old pack and then
 461         removed.  Instead, the loose unreachable objects
 462         will be pruned according to normal expiry rules
 463         with the next <em>git gc</em> invocation. See <a href="git-gc.html">git-gc(1)</a>.
 464 </p>
 465 </dd>
 466 <dt class="hdlist1">
 467 -d
 468 </dt>
 469 <dd>
 470 <p>
 471         After packing, if the newly created packs make some
 472         existing packs redundant, remove the redundant packs.
 473         Also run  <em>git prune-packed</em> to remove redundant
 474         loose object files.
 475 </p>
 476 </dd>
 477 <dt class="hdlist1">
 478 -l
 479 </dt>
 480 <dd>
 481 <p>
 482         Pass the <tt>--local</tt> option to <em>git pack-objects</em>. See
 483         <a href="git-pack-objects.html">git-pack-objects(1)</a>.
 484 </p>
 485 </dd>
 486 <dt class="hdlist1">
 487 -f
 488 </dt>
 489 <dd>
 490 <p>
 491         Pass the <tt>--no-reuse-delta</tt> option to <tt>git-pack-objects</tt>, see
 492         <a href="git-pack-objects.html">git-pack-objects(1)</a>.
 493 </p>
 494 </dd>
 495 <dt class="hdlist1">
 496 -F
 497 </dt>
 498 <dd>
 499 <p>
 500         Pass the <tt>--no-reuse-object</tt> option to <tt>git-pack-objects</tt>, see
 501         <a href="git-pack-objects.html">git-pack-objects(1)</a>.
 502 </p>
 503 </dd>
 504 <dt class="hdlist1">
 505 -q
 506 </dt>
 507 <dd>
 508 <p>
 509         Pass the <tt>-q</tt> option to <em>git pack-objects</em>. See
 510         <a href="git-pack-objects.html">git-pack-objects(1)</a>.
 511 </p>
 512 </dd>
 513 <dt class="hdlist1">
 514 -n
 515 </dt>
 516 <dd>
 517 <p>
 518         Do not update the server information with
 519         <em>git update-server-info</em>.  This option skips
 520         updating local catalog files needed to publish
 521         this repository (or a direct copy of it)
 522         over HTTP or FTP.  See <a href="git-update-server-info.html">git-update-server-info(1)</a>.
 523 </p>
 524 </dd>
 525 <dt class="hdlist1">
 526 --window=&lt;n&gt;
 527 </dt>
 528 <dt class="hdlist1">
 529 --depth=&lt;n&gt;
 530 </dt>
 531 <dd>
 532 <p>
 533         These two options affect how the objects contained in the pack are
 534         stored using delta compression. The objects are first internally
 535         sorted by type, size and optionally names and compared against the
 536         other objects within <tt>--window</tt> to see if using delta compression saves
 537         space. <tt>--depth</tt> limits the maximum delta depth; making it too deep
 538         affects the performance on the unpacker side, because delta data needs
 539         to be applied that many times to get to the necessary object.
 540         The default value for --window is 10 and --depth is 50.
 541 </p>
 542 </dd>
 543 <dt class="hdlist1">
 544 --window-memory=&lt;n&gt;
 545 </dt>
 546 <dd>
 547 <p>
 548         This option provides an additional limit on top of <tt>--window</tt>;
 549         the window size will dynamically scale down so as to not take
 550         up more than <em>&lt;n&gt;</em> bytes in memory.  This is useful in
 551         repositories with a mix of large and small objects to not run
 552         out of memory with a large window, but still be able to take
 553         advantage of the large window for the smaller objects.  The
 554         size can be suffixed with "k", "m", or "g".
 555         <tt>--window-memory=0</tt> makes memory usage unlimited, which is the
 556         default.
 557 </p>
 558 </dd>
 559 <dt class="hdlist1">
 560 --max-pack-size=&lt;n&gt;
 561 </dt>
 562 <dd>
 563 <p>
 564         Maximum size of each output pack file. The size can be suffixed with
 565         "k", "m", or "g". The minimum size allowed is limited to 1 MiB.
 566         If specified,  multiple packfiles may be created.
 567         The default is unlimited, unless the config variable
 568         <tt>pack.packSizeLimit</tt> is set.
 569 </p>
 570 </dd>
 571 </dl></div>
 572 </div>
 573 <h2 id="_configuration">Configuration</h2>
 574 <div class="sectionbody">
 575 <div class="paragraph"><p>By default, the command passes <tt>--delta-base-offset</tt> option to
 576 <em>git pack-objects</em>; this typically results in slightly smaller packs,
 577 but the generated packs are incompatible with versions of Git older than
 578 version 1.4.4. If you need to share your repository with such ancient Git
 579 versions, either directly or via the dumb http or rsync protocol, then you
 580 need to set the configuration variable <tt>repack.UseDeltaBaseOffset</tt> to
 581 "false" and repack. Access from old Git versions over the native protocol
 582 is unaffected by this option as the conversion is performed on the fly
 583 as needed in that case.</p></div>
 584 </div>
 585 <h2 id="_author">Author</h2>
 586 <div class="sectionbody">
 587 <div class="paragraph"><p>Written by Linus Torvalds &lt;<a href="mailto:torvalds@osdl.org">torvalds@osdl.org</a>&gt;</p></div>
 588 </div>
 589 <h2 id="_documentation">Documentation</h2>
 590 <div class="sectionbody">
 591 <div class="paragraph"><p>Documentation by Ryan Anderson &lt;<a href="mailto:ryan@michonline.com">ryan@michonline.com</a>&gt;</p></div>
 592 </div>
 593 <h2 id="_see_also">SEE ALSO</h2>
 594 <div class="sectionbody">
 595 <div class="paragraph"><p><a href="git-pack-objects.html">git-pack-objects(1)</a>
 596 <a href="git-prune-packed.html">git-prune-packed(1)</a></p></div>
 597 </div>
 598 <h2 id="_git">GIT</h2>
 599 <div class="sectionbody">
 600 <div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
 601 </div>
 602 <div id="footer">
 603 <div id="footer-text">
 604 Last updated 2010-11-06 00:41:57 UTC
 605 </div>
 606 </div>
 607 </body>
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