git-index-pack.html

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 441 <body class="manpage">
 442 <div id="header">
 443 <h1>git-index-pack(1) Manual Page</h1>
 444 <h2 id="_name">NAME</h2>
 445 <div class="sectionbody">
 446 <p>git-index-pack - Build pack index file for an existing packed archive</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 index-pack</em> [-v] [-o &lt;index-file&gt;] [--[no-]rev-index] &lt;pack-file&gt;
 455 <em>git index-pack</em> --stdin [--fix-thin] [--keep] [-v] [-o &lt;index-file&gt;]
 456                   [--[no-]rev-index] [&lt;pack-file&gt;]</pre>
 457 </div>
 458 </div>
 459 </div>
 460 <div class="sect1">
 461 <h2 id="_description">DESCRIPTION</h2>
 462 <div class="sectionbody">
 463 <div class="paragraph">
 464 <p>Reads a packed archive (.pack) from the specified file,
 465 builds a pack index file (.idx) for it, and optionally writes a
 466 reverse-index (.rev) for the specified pack. The packed
 467 archive, together with the pack index, can then be placed in
 468 the objects/pack/ directory of a Git repository.</p>
 469 </div>
 470 </div>
 471 </div>
 472 <div class="sect1">
 473 <h2 id="_options">OPTIONS</h2>
 474 <div class="sectionbody">
 475 <div class="dlist">
 476 <dl>
 477 <dt class="hdlist1">-v</dt>
 478 <dd>
 479 <p>Be verbose about what is going on, including progress status.</p>
 480 </dd>
 481 <dt class="hdlist1">-o &lt;index-file&gt;</dt>
 482 <dd>
 483 <p>Write the generated pack index into the specified
 484 file.  Without this option the name of pack index
 485 file is constructed from the name of packed archive
 486 file by replacing .pack with .idx (and the program
 487 fails if the name of packed archive does not end
 488 with .pack).</p>
 489 </dd>
 490 <dt class="hdlist1">--[no-]rev-index</dt>
 491 <dd>
 492 <p>When this flag is provided, generate a reverse index
 493 (a .<code>rev</code> file) corresponding to the given pack. If
 494 <code>--verify</code> is given, ensure that the existing
 495 reverse index is correct. Takes precedence over
 496 <code>pack.writeReverseIndex</code>.</p>
 497 </dd>
 498 <dt class="hdlist1">--stdin</dt>
 499 <dd>
 500 <p>When this flag is provided, the pack is read from stdin
 501 instead and a copy is then written to &lt;pack-file&gt;. If
 502 &lt;pack-file&gt; is not specified, the pack is written to
 503 objects/pack/ directory of the current Git repository with
 504 a default name determined from the pack content.  If
 505 &lt;pack-file&gt; is not specified consider using --keep to
 506 prevent a race condition between this process and
 507 <em>git repack</em>.</p>
 508 </dd>
 509 <dt class="hdlist1">--fix-thin</dt>
 510 <dd>
 511 <p>Fix a "thin" pack produced by <code>git</code> <code>pack-objects</code> <code>--thin</code> (see
 512 <a href="git-pack-objects.html">git-pack-objects(1)</a> for details) by adding the
 513 excluded objects the deltified objects are based on to the
 514 pack. This option only makes sense in conjunction with --stdin.</p>
 515 </dd>
 516 <dt class="hdlist1">--keep</dt>
 517 <dd>
 518 <p>Before moving the index into its final destination
 519 create an empty .keep file for the associated pack file.
 520 This option is usually necessary with --stdin to prevent a
 521 simultaneous <em>git repack</em> process from deleting
 522 the newly constructed pack and index before refs can be
 523 updated to use objects contained in the pack.</p>
 524 </dd>
 525 <dt class="hdlist1">--keep=&lt;msg&gt;</dt>
 526 <dd>
 527 <p>Like --keep, create a .keep file before moving the index into
 528 its final destination.  However, instead of creating an empty file
 529 place <em>&lt;msg&gt;</em> followed by an LF into the .keep file.  The <em>&lt;msg&gt;</em>
 530 message can later be searched for within all .keep files to
 531 locate any which have outlived their usefulness.</p>
 532 </dd>
 533 <dt class="hdlist1">--index-version=&lt;version&gt;[,&lt;offset&gt;]</dt>
 534 <dd>
 535 <p>This is intended to be used by the test suite only. It allows
 536 to force the version for the generated pack index, and to force
 537 64-bit index entries on objects located above the given offset.</p>
 538 </dd>
 539 <dt class="hdlist1">--strict[=&lt;msg-id&gt;=&lt;severity&gt;&#8230;&#8203;]</dt>
 540 <dd>
 541 <p>Die, if the pack contains broken objects or links. An optional
 542 comma-separated list of <em>&lt;msg-id&gt;</em><code>=</code><em>&lt;severity&gt;</em> can be passed to change
 543 the severity of some possible issues, e.g.,
 544  <code>--strict=</code>"missingEmail=ignore,badTagName=error". See the entry for the
 545 <code>fsck.</code><em>&lt;msg-id&gt;</em> configuration options in <a href="git-fsck.html">git-fsck(1)</a> for more
 546 information on the possible values of <em>&lt;msg-id&gt;</em> and <em>&lt;severity&gt;</em>.</p>
 547 </dd>
 548 <dt class="hdlist1">--progress-title</dt>
 549 <dd>
 550 <p>For internal use only.</p>
 551 <div class="paragraph">
 552 <p>Set the title of the progress bar. The title is "Receiving objects" by
 553 default and "Indexing objects" when <code>--stdin</code> is specified.</p>
 554 </div>
 555 </dd>
 556 <dt class="hdlist1">--check-self-contained-and-connected</dt>
 557 <dd>
 558 <p>Die if the pack contains broken links. For internal use only.</p>
 559 </dd>
 560 <dt class="hdlist1">--fsck-objects[=&lt;msg-id&gt;=&lt;severity&gt;&#8230;&#8203;]</dt>
 561 <dd>
 562 <p>Die if the pack contains broken objects, but unlike <code>--strict</code>, don&#8217;t
 563 choke on broken links. If the pack contains a tree pointing to a
 564 .gitmodules blob that does not exist, prints the hash of that blob
 565 (for the caller to check) after the hash that goes into the name of the
 566 pack/idx file (see "Notes").</p>
 567 <div class="paragraph">
 568 <p>An optional comma-separated list of <em>&lt;msg-id&gt;</em><code>=</code><em>&lt;severity&gt;</em> can be passed to
 569 change the severity of some possible issues, e.g.,
 570 <code>--fsck-objects=</code>"missingEmail=ignore,badTagName=ignore". See the entry for the
 571 <code>fsck.</code><em>&lt;msg-id&gt;</em> configuration options in <a href="git-fsck.html">git-fsck(1)</a> for more
 572 information on the possible values of <em>&lt;msg-id&gt;</em> and <em>&lt;severity&gt;</em>.</p>
 573 </div>
 574 </dd>
 575 <dt class="hdlist1">--threads=&lt;n&gt;</dt>
 576 <dd>
 577 <p>Specifies the number of threads to spawn when resolving
 578 deltas. This requires that index-pack be compiled with
 579 pthreads otherwise this option is ignored with a warning.
 580 This is meant to reduce packing time on multiprocessor
 581 machines. The required amount of memory for the delta search
 582 window is however multiplied by the number of threads.
 583 Specifying 0 will cause Git to auto-detect the number of CPU&#8217;s
 584 and use maximum 3 threads.</p>
 585 </dd>
 586 <dt class="hdlist1">--max-input-size=&lt;size&gt;</dt>
 587 <dd>
 588 <p>Die, if the pack is larger than &lt;size&gt;.</p>
 589 </dd>
 590 <dt class="hdlist1">--object-format=&lt;hash-algorithm&gt;</dt>
 591 <dd>
 592 <p>Specify the given object format (hash algorithm) for the pack.  The valid
 593 values are <em>sha1</em> and (if enabled) <em>sha256</em>.  The default is the algorithm for
 594 the current repository (set by <code>extensions.objectFormat</code>), or <em>sha1</em> if no
 595 value is set or outside a repository.</p>
 596 <div class="paragraph">
 597 <p>This option cannot be used with --stdin.</p>
 598 </div>
 599 <div class="paragraph">
 600 <p>Note: At present, there is no interoperability between SHA-256
 601 repositories and SHA-1 repositories.</p>
 602 </div>
 603 </dd>
 604 </dl>
 605 </div>
 606 <div class="paragraph">
 607 <p>Historically, we warned that SHA-256 repositories may later need
 608 backward incompatible changes when we introduce such interoperability
 609 features. Today, we only expect compatible changes. Furthermore, if such
 610 changes prove to be necessary, it can be expected that SHA-256 repositories
 611 created with today&#8217;s Git will be usable by future versions of Git
 612 without data loss.</p>
 613 </div>
 614 <div class="dlist">
 615 <dl>
 616 <dt class="hdlist1">--promisor[=&lt;message&gt;]</dt>
 617 <dd>
 618 <p>Before committing the pack-index, create a .promisor file for this
 619 pack. Particularly helpful when writing a promisor pack with --fix-thin
 620 since the name of the pack is not final until the pack has been fully
 621 written. If a <em>&lt;message&gt;</em> is provided, then that content will be
 622 written to the .promisor file for future reference. See
 623 <a href="technical/partial-clone.html">partial clone</a> for more information.</p>
 624 <div class="paragraph">
 625 <p>Also, if there are objects in the given pack that references non-promisor
 626 objects (in the repo), repacks those non-promisor objects into a promisor
 627 pack. This avoids a situation in which a repo has non-promisor objects that are
 628 accessible through promisor objects.</p>
 629 </div>
 630 <div class="paragraph">
 631 <p>Requires &lt;pack-file&gt; to not be specified.</p>
 632 </div>
 633 </dd>
 634 </dl>
 635 </div>
 636 </div>
 637 </div>
 638 <div class="sect1">
 639 <h2 id="_notes">NOTES</h2>
 640 <div class="sectionbody">
 641 <div class="paragraph">
 642 <p>Once the index has been created, the hash that goes into the name of
 643 the pack/idx file is printed to stdout. If --stdin was
 644 also used then this is prefixed by either "pack\t", or "keep\t" if a
 645 new .keep file was successfully created. This is useful to remove a
 646 .keep file used as a lock to prevent the race with <em>git repack</em>
 647 mentioned above.</p>
 648 </div>
 649 </div>
 650 </div>
 651 <div class="sect1">
 652 <h2 id="_git">GIT</h2>
 653 <div class="sectionbody">
 654 <div class="paragraph">
 655 <p>Part of the <a href="git.html">git(1)</a> suite</p>
 656 </div>
 657 </div>
 658 </div>
 659 </div>
 660 <div id="footer">
 661 <div id="footer-text">
 662 Last updated 2024-11-26 15:30:33 -0800
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