git-show-index.html

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 441 <body class="manpage">
 442 <div id="header">
 443 <h1>git-show-index(1) Manual Page</h1>
 444 <h2 id="_name">NAME</h2>
 445 <div class="sectionbody">
 446 <p>git-show-index - Show packed archive index</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 show-index</em> [--object-format=&lt;hash-algorithm&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>Read the .<code>idx</code> file for a Git packfile (created with
 463 <a href="git-pack-objects.html">git-pack-objects(1)</a> or <a href="git-index-pack.html">git-index-pack(1)</a>) from the
 464 standard input, and dump its contents. The output consists of one object
 465 per line, with each line containing two or three space-separated
 466 columns:</p>
 467 </div>
 468 <div class="ulist">
 469 <ul>
 470 <li>
 471 <p>the first column is the offset in bytes of the object within the
 472 corresponding packfile</p>
 473 </li>
 474 <li>
 475 <p>the second column is the object id of the object</p>
 476 </li>
 477 <li>
 478 <p>if the index version is 2 or higher, the third column contains the
 479 CRC32 of the object data</p>
 480 </li>
 481 </ul>
 482 </div>
 483 <div class="paragraph">
 484 <p>The objects are output in the order in which they are found in the index
 485 file, which should be (in a correctly constructed file) sorted by object
 486 id.</p>
 487 </div>
 488 <div class="paragraph">
 489 <p>Note that you can get more information on a packfile by calling
 490 <a href="git-verify-pack.html">git-verify-pack(1)</a>. However, as this command considers only the
 491 index file itself, it&#8217;s both faster and more flexible.</p>
 492 </div>
 493 </div>
 494 </div>
 495 <div class="sect1">
 496 <h2 id="_options">OPTIONS</h2>
 497 <div class="sectionbody">
 498 <div class="dlist">
 499 <dl>
 500 <dt class="hdlist1">--object-format=&lt;hash-algorithm&gt;</dt>
 501 <dd>
 502 <p>Specify the given object format (hash algorithm) for the index file.  The
 503 valid values are <em>sha1</em> and (if enabled) <em>sha256</em>.  The default is the
 504 algorithm for the current repository (set by <code>extensions.objectFormat</code>), or
 505 <em>sha1</em> if no value is set or outside a repository..</p>
 506 <div class="paragraph">
 507 <p>Note: At present, there is no interoperability between SHA-256
 508 repositories and SHA-1 repositories.</p>
 509 </div>
 510 </dd>
 511 </dl>
 512 </div>
 513 <div class="paragraph">
 514 <p>Historically, we warned that SHA-256 repositories may later need
 515 backward incompatible changes when we introduce such interoperability
 516 features. Today, we only expect compatible changes. Furthermore, if such
 517 changes prove to be necessary, it can be expected that SHA-256 repositories
 518 created with today&#8217;s Git will be usable by future versions of Git
 519 without data loss.</p>
 520 </div>
 521 </div>
 522 </div>
 523 <div class="sect1">
 524 <h2 id="_git">GIT</h2>
 525 <div class="sectionbody">
 526 <div class="paragraph">
 527 <p>Part of the <a href="git.html">git(1)</a> suite</p>
 528 </div>
 529 </div>
 530 </div>
 531 </div>
 532 <div id="footer">
 533 <div id="footer-text">
 534 Last updated 2020-08-25 10:44:55 -0700
 535 </div>
 536 </div>
 537 </body>
 538 </html>