git-multi-pack-index.html

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 441 <body class="manpage">
 442 <div id="header">
 443 <h1>git-multi-pack-index(1) Manual Page</h1>
 444 <h2 id="_name">NAME</h2>
 445 <div class="sectionbody">
 446 <p>git-multi-pack-index - Write and verify multi-pack-indexes</p>
 447 </div>
 448 </div>
 449 <div id="content">
 450 <div class="sect1">
 451 <h2 id="_synopsis">SYNOPSIS</h2>
 452 <div class="sectionbody">
 453 <div class="verseblock">
 454 <pre class="content"><em>git multi-pack-index</em> [--object-dir=&lt;dir&gt;] [--[no-]bitmap] &lt;sub-command&gt;</pre>
 455 </div>
 456 </div>
 457 </div>
 458 <div class="sect1">
 459 <h2 id="_description">DESCRIPTION</h2>
 460 <div class="sectionbody">
 461 <div class="paragraph">
 462 <p>Write or verify a multi-pack-index (MIDX) file.</p>
 463 </div>
 464 </div>
 465 </div>
 466 <div class="sect1">
 467 <h2 id="_options">OPTIONS</h2>
 468 <div class="sectionbody">
 469 <div class="dlist">
 470 <dl>
 471 <dt class="hdlist1">--object-dir=&lt;dir&gt;</dt>
 472 <dd>
 473 <p>Use given directory for the location of Git objects. We check
 474 <em>&lt;dir&gt;</em><code>/packs/multi-pack-index</code> for the current MIDX file, and
 475 <em>&lt;dir&gt;</em><code>/packs</code> for the pack-files to index.</p>
 476 <div class="paragraph">
 477 <p><em>&lt;dir&gt;</em> must be an alternate of the current repository.</p>
 478 </div>
 479 </dd>
 480 <dt class="hdlist1">--[no-]progress</dt>
 481 <dd>
 482 <p>Turn progress on/off explicitly. If neither is specified, progress is
 483 shown if standard error is connected to a terminal. Supported by
 484 sub-commands <code>write</code>, <code>verify</code>, <code>expire</code>, and `repack.</p>
 485 </dd>
 486 </dl>
 487 </div>
 488 <div class="paragraph">
 489 <p>The following subcommands are available:</p>
 490 </div>
 491 <div class="dlist">
 492 <dl>
 493 <dt class="hdlist1">write</dt>
 494 <dd>
 495 <p>Write a new MIDX file. The following options are available for
 496 the <code>write</code> sub-command:</p>
 497 <div class="openblock">
 498 <div class="content">
 499 <div class="dlist">
 500 <dl>
 501 <dt class="hdlist1">--preferred-pack=&lt;pack&gt;</dt>
 502 <dd>
 503 <p>Optionally specify the tie-breaking pack used when
 504 multiple packs contain the same object. <em>&lt;pack&gt;</em> must
 505 contain at least one object. If not given, ties are
 506 broken in favor of the pack with the lowest mtime.</p>
 507 </dd>
 508 <dt class="hdlist1">--[no-]bitmap</dt>
 509 <dd>
 510 <p>Control whether or not a multi-pack bitmap is written.</p>
 511 </dd>
 512 <dt class="hdlist1">--stdin-packs</dt>
 513 <dd>
 514 <p>Write a multi-pack index containing only the set of
 515 line-delimited pack index basenames provided over stdin.</p>
 516 </dd>
 517 <dt class="hdlist1">--refs-snapshot=&lt;path&gt;</dt>
 518 <dd>
 519 <p>With <code>--bitmap</code>, optionally specify a file which
 520 contains a "refs snapshot" taken prior to repacking.</p>
 521 <div class="paragraph">
 522 <p>A reference snapshot is composed of line-delimited OIDs corresponding to
 523 the reference tips, usually taken by <code>git</code> <code>repack</code> prior to generating a
 524 new pack. A line may optionally start with a <code>+</code> character to indicate
 525 that the reference which corresponds to that OID is "preferred" (see
 526 <a href="git-config.html">git-config(1)</a>'s <code>pack.preferBitmapTips</code>.)</p>
 527 </div>
 528 <div class="paragraph">
 529 <p>The file given at <em>&lt;path&gt;</em> is expected to be readable, and can contain
 530 duplicates. (If a given OID is given more than once, it is marked as
 531 preferred if at least one instance of it begins with the special <code>+</code>
 532 marker).</p>
 533 </div>
 534 </dd>
 535 <dt class="hdlist1">--incremental</dt>
 536 <dd>
 537 <p>Write an incremental MIDX file containing only objects
 538 and packs not present in an existing MIDX layer.
 539 Migrates non-incremental MIDXs to incremental ones when
 540 necessary. Incompatible with <code>--bitmap</code>.</p>
 541 </dd>
 542 </dl>
 543 </div>
 544 </div>
 545 </div>
 546 </dd>
 547 <dt class="hdlist1">verify</dt>
 548 <dd>
 549 <p>Verify the contents of the MIDX file.</p>
 550 </dd>
 551 <dt class="hdlist1">expire</dt>
 552 <dd>
 553 <p>Delete the pack-files that are tracked by the MIDX file, but
 554 have no objects referenced by the MIDX (with the exception of
 555 .<code>keep</code> packs and cruft packs). Rewrite the MIDX file afterward
 556 to remove all references to these pack-files.</p>
 557 <div class="admonitionblock note">
 558 <table>
 559 <tr>
 560 <td class="icon">
 561 <div class="title">Note</div>
 562 </td>
 563 <td class="content">
 564 this mode is incompatible with incremental MIDX files.
 565 </td>
 566 </tr>
 567 </table>
 568 </div>
 569 </dd>
 570 <dt class="hdlist1">repack</dt>
 571 <dd>
 572 <p>Create a new pack-file containing objects in small pack-files
 573 referenced by the multi-pack-index. If the size given by the
 574 <code>--batch-size=</code><em>&lt;size&gt;</em> argument is zero, then create a pack
 575 containing all objects referenced by the multi-pack-index. For
 576 a non-zero batch size, Select the pack-files by examining packs
 577 from oldest-to-newest, computing the "expected size" by counting
 578 the number of objects in the pack referenced by the
 579 multi-pack-index, then divide by the total number of objects in
 580 the pack and multiply by the pack size. We select packs with
 581 expected size below the batch size until the set of packs have
 582 total expected size at least the batch size, or all pack-files
 583 are considered. If only one pack-file is selected, then do
 584 nothing. If a new pack-file is created, rewrite the
 585 multi-pack-index to reference the new pack-file. A later run of
 586 <em>git multi-pack-index expire</em> will delete the pack-files that
 587 were part of this batch.</p>
 588 <div class="paragraph">
 589 <p>If <code>repack.packKeptObjects</code> is <code>false</code>, then any pack-files with an
 590 associated .<code>keep</code> file will not be selected for the batch to repack.</p>
 591 </div>
 592 <div class="admonitionblock note">
 593 <table>
 594 <tr>
 595 <td class="icon">
 596 <div class="title">Note</div>
 597 </td>
 598 <td class="content">
 599 this mode is incompatible with incremental MIDX files.
 600 </td>
 601 </tr>
 602 </table>
 603 </div>
 604 </dd>
 605 </dl>
 606 </div>
 607 </div>
 608 </div>
 609 <div class="sect1">
 610 <h2 id="_examples">EXAMPLES</h2>
 611 <div class="sectionbody">
 612 <div class="ulist">
 613 <ul>
 614 <li>
 615 <p>Write a MIDX file for the packfiles in the current .<code>git</code> directory.</p>
 616 <div class="listingblock">
 617 <div class="content">
 618 <pre>$ git multi-pack-index write</pre>
 619 </div>
 620 </div>
 621 </li>
 622 <li>
 623 <p>Write a MIDX file for the packfiles in the current .<code>git</code> directory with a
 624 corresponding bitmap.</p>
 625 <div class="listingblock">
 626 <div class="content">
 627 <pre>$ git multi-pack-index write --preferred-pack=&lt;pack&gt; --bitmap</pre>
 628 </div>
 629 </div>
 630 </li>
 631 <li>
 632 <p>Write a MIDX file for the packfiles in an alternate object store.</p>
 633 <div class="listingblock">
 634 <div class="content">
 635 <pre>$ git multi-pack-index --object-dir &lt;alt&gt; write</pre>
 636 </div>
 637 </div>
 638 </li>
 639 <li>
 640 <p>Verify the MIDX file for the packfiles in the current .<code>git</code> directory.</p>
 641 <div class="listingblock">
 642 <div class="content">
 643 <pre>$ git multi-pack-index verify</pre>
 644 </div>
 645 </div>
 646 </li>
 647 </ul>
 648 </div>
 649 </div>
 650 </div>
 651 <div class="sect1">
 652 <h2 id="_see_also">SEE ALSO</h2>
 653 <div class="sectionbody">
 654 <div class="paragraph">
 655 <p>See <a href="technical/multi-pack-index.html">The Multi-Pack-Index Design
 656 Document</a> and <a href="gitformat-pack.html">gitformat-pack(5)</a> for more information on the
 657 multi-pack-index feature and its file format.</p>
 658 </div>
 659 </div>
 660 </div>
 661 <div class="sect1">
 662 <h2 id="_git">GIT</h2>
 663 <div class="sectionbody">
 664 <div class="paragraph">
 665 <p>Part of the <a href="git.html">git(1)</a> suite</p>
 666 </div>
 667 </div>
 668 </div>
 669 </div>
 670 <div id="footer">
 671 <div id="footer-text">
 672 Last updated 2024-08-19 12:00:09 -0700
 673 </div>
 674 </div>
 675 </body>
 676 </html>