git-sh-setup.html

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 442 <div id="header">
 443 <h1>git-sh-setup(1) Manual Page</h1>
 444 <h2 id="_name">NAME</h2>
 445 <div class="sectionbody">
 446 <p>git-sh-setup - Common Git shell script setup code</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 --exec-path)/git-sh-setup"</em></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>This is not a command the end user would want to run.  Ever.
 463 This documentation is meant for people who are studying the
 464 Porcelain-ish scripts and/or are writing new ones.</p>
 465 </div>
 466 <div class="paragraph">
 467 <p>The <em>git sh-setup</em> scriptlet is designed to be sourced (using
 468 .) by other shell scripts to set up some variables pointing at
 469 the normal Git directories and a few helper shell functions.</p>
 470 </div>
 471 <div class="paragraph">
 472 <p>Before sourcing it, your script should set up a few variables;
 473 <code>USAGE</code> (and <code>LONG_USAGE</code>, if any) is used to define the message
 474 given by <code>usage</code>() shell function.  <code>SUBDIRECTORY_OK</code> can be set
 475 if the script can run from a subdirectory of the working tree
 476 (some commands do not).</p>
 477 </div>
 478 <div class="paragraph">
 479 <p>The scriptlet sets <code>GIT_DIR</code> and <code>GIT_OBJECT_DIRECTORY</code> shell
 480 variables, but does <strong>not</strong> export them to the environment.</p>
 481 </div>
 482 </div>
 483 </div>
 484 <div class="sect1">
 485 <h2 id="_functions">FUNCTIONS</h2>
 486 <div class="sectionbody">
 487 <div class="dlist">
 488 <dl>
 489 <dt class="hdlist1">die</dt>
 490 <dd>
 491 <p>exit after emitting the supplied error message to the
 492 standard error stream.</p>
 493 </dd>
 494 <dt class="hdlist1">usage</dt>
 495 <dd>
 496 <p>die with the usage message.</p>
 497 </dd>
 498 <dt class="hdlist1">set_reflog_action</dt>
 499 <dd>
 500 <p>Set <code>GIT_REFLOG_ACTION</code> environment to a given string (typically
 501 the name of the program) unless it is already set.  Whenever
 502 the script runs a <code>git</code> command that updates refs, a reflog
 503 entry is created using the value of this string to leave the
 504 record of what command updated the ref.</p>
 505 </dd>
 506 <dt class="hdlist1">git_editor</dt>
 507 <dd>
 508 <p>runs an editor of user&#8217;s choice (GIT_EDITOR, core.editor, VISUAL or
 509 EDITOR) on a given file, but error out if no editor is specified
 510 and the terminal is dumb.</p>
 511 </dd>
 512 <dt class="hdlist1">is_bare_repository</dt>
 513 <dd>
 514 <p>outputs <code>true</code> or <code>false</code> to the standard output stream
 515 to indicate if the repository is a bare repository
 516 (i.e. without an associated working tree).</p>
 517 </dd>
 518 <dt class="hdlist1">cd_to_toplevel</dt>
 519 <dd>
 520 <p>runs chdir to the toplevel of the working tree.</p>
 521 </dd>
 522 <dt class="hdlist1">require_work_tree</dt>
 523 <dd>
 524 <p>checks if the current directory is within the working tree
 525 of the repository, and otherwise dies.</p>
 526 </dd>
 527 <dt class="hdlist1">require_work_tree_exists</dt>
 528 <dd>
 529 <p>checks if the working tree associated with the repository
 530 exists, and otherwise dies.  Often done before calling
 531 cd_to_toplevel, which is impossible to do if there is no
 532 working tree.</p>
 533 </dd>
 534 <dt class="hdlist1">require_clean_work_tree &lt;action&gt; [&lt;hint&gt;]</dt>
 535 <dd>
 536 <p>checks that the working tree and index associated with the
 537 repository have no uncommitted changes to tracked files.
 538 Otherwise it emits an error message of the form <code>Cannot</code>
 539 <em>&lt;action&gt;</em><code>:</code> <em>&lt;reason&gt;</em>. <em>&lt;hint&gt;</em>, and dies.  Example:</p>
 540 <div class="listingblock">
 541 <div class="content">
 542 <pre>require_clean_work_tree rebase "Please commit or stash them."</pre>
 543 </div>
 544 </div>
 545 </dd>
 546 <dt class="hdlist1">get_author_ident_from_commit</dt>
 547 <dd>
 548 <p>outputs code for use with eval to set the GIT_AUTHOR_NAME,
 549 GIT_AUTHOR_EMAIL and GIT_AUTHOR_DATE variables for a given commit.</p>
 550 </dd>
 551 <dt class="hdlist1">create_virtual_base</dt>
 552 <dd>
 553 <p>modifies the first file so only lines in common with the
 554 second file remain. If there is insufficient common material,
 555 then the first file is left empty. The result is suitable
 556 as a virtual base input for a 3-way merge.</p>
 557 </dd>
 558 </dl>
 559 </div>
 560 </div>
 561 </div>
 562 <div class="sect1">
 563 <h2 id="_git">GIT</h2>
 564 <div class="sectionbody">
 565 <div class="paragraph">
 566 <p>Part of the <a href="git.html">git(1)</a> suite</p>
 567 </div>
 568 </div>
 569 </div>
 570 </div>
 571 <div id="footer">
 572 <div id="footer-text">
 573 Last updated 2023-10-23 14:43:46 -0700
 574 </div>
 575 </div>
 576 </body>
 577 </html>