technical/api-directory-listing.html

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 553 <div id="header">
 554 <h1>directory listing API</h1>
 555 </div>
 556 <div id="content">
 557 <div id="preamble">
 558 <div class="sectionbody">
 559 <div class="paragraph"><p>The directory listing API is used to enumerate paths in the work tree,
 560 optionally taking <tt>.git/info/exclude</tt> and <tt>.gitignore</tt> files per
 561 directory into account.</p></div>
 562 </div>
 563 </div>
 564 <h2 id="_data_structure">Data structure</h2>
 565 <div class="sectionbody">
 566 <div class="paragraph"><p><tt>struct dir_struct</tt> structure is used to pass directory traversal
 567 options to the library and to record the paths discovered.  The notable
 568 options are:</p></div>
 569 <div class="dlist"><dl>
 570 <dt class="hdlist1">
 571 <tt>exclude_per_dir</tt>
 572 </dt>
 573 <dd>
 574 <p>
 575         The name of the file to be read in each directory for excluded
 576         files (typically <tt>.gitignore</tt>).
 577 </p>
 578 </dd>
 579 <dt class="hdlist1">
 580 <tt>collect_ignored</tt>
 581 </dt>
 582 <dd>
 583 <p>
 584         Include paths that are to be excluded in the result.
 585 </p>
 586 </dd>
 587 <dt class="hdlist1">
 588 <tt>show_ignored</tt>
 589 </dt>
 590 <dd>
 591 <p>
 592         The traversal is for finding just ignored files, not unignored
 593         files.
 594 </p>
 595 </dd>
 596 <dt class="hdlist1">
 597 <tt>show_other_directories</tt>
 598 </dt>
 599 <dd>
 600 <p>
 601         Include a directory that is not tracked.
 602 </p>
 603 </dd>
 604 <dt class="hdlist1">
 605 <tt>hide_empty_directories</tt>
 606 </dt>
 607 <dd>
 608 <p>
 609         Do not include a directory that is not tracked and is empty.
 610 </p>
 611 </dd>
 612 <dt class="hdlist1">
 613 <tt>no_gitlinks</tt>
 614 </dt>
 615 <dd>
 616 <p>
 617         If set, recurse into a directory that looks like a git
 618         directory.  Otherwise it is shown as a directory.
 619 </p>
 620 </dd>
 621 <dt class="hdlist1">
 622 The result of the enumeration is left in these fields
 623 </dt>
 624 <dt class="hdlist1">
 625 <tt>entries[]</tt>
 626 </dt>
 627 <dd>
 628 <p>
 629         An array of <tt>struct dir_entry</tt>, each element of which describes
 630         a path.
 631 </p>
 632 </dd>
 633 <dt class="hdlist1">
 634 <tt>nr</tt>
 635 </dt>
 636 <dd>
 637 <p>
 638         The number of members in <tt>entries[]</tt> array.
 639 </p>
 640 </dd>
 641 <dt class="hdlist1">
 642 <tt>alloc</tt>
 643 </dt>
 644 <dd>
 645 <p>
 646         Internal use; keeps track of allocation of <tt>entries[]</tt> array.
 647 </p>
 648 </dd>
 649 </dl></div>
 650 </div>
 651 <h2 id="_calling_sequence">Calling sequence</h2>
 652 <div class="sectionbody">
 653 <div class="paragraph"><p>Note: index may be looked at for .gitignore files that are CE_SKIP_WORKTREE
 654 marked. If you to exclude files, make sure you have loaded index first.</p></div>
 655 <div class="ulist"><ul>
 656 <li>
 657 <p>
 658 Prepare <tt>struct dir_struct dir</tt> and clear it with <tt>memset(&amp;dir, 0,
 659   sizeof(dir))</tt>.
 660 </p>
 661 </li>
 662 <li>
 663 <p>
 664 Call <tt>add_exclude()</tt> to add single exclude pattern,
 665   <tt>add_excludes_from_file()</tt> to add patterns from a file
 666   (e.g. <tt>.git/info/exclude</tt>), and/or set <tt>dir.exclude_per_dir</tt>.  A
 667   short-hand function <tt>setup_standard_excludes()</tt> can be used to set up
 668   the standard set of exclude settings.
 669 </p>
 670 </li>
 671 <li>
 672 <p>
 673 Set options described in the Data Structure section above.
 674 </p>
 675 </li>
 676 <li>
 677 <p>
 678 Call <tt>read_directory()</tt>.
 679 </p>
 680 </li>
 681 <li>
 682 <p>
 683 Use <tt>dir.entries[]</tt>.
 684 </p>
 685 </li>
 686 </ul></div>
 687 <div class="paragraph"><p>(JC)</p></div>
 688 </div>
 689 </div>
 690 <div id="footnotes"><hr /></div>
 691 <div id="footer">
 692 <div id="footer-text">
 693 Last updated 2011-09-21 23:01:14 PDT
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