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256 padding-left: 0.5em;
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259 <title>git-update-index(1)</title>
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264 git-update-index(1) Manual Page
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267 <div class="sectionbody">
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268 <p>git-update-index -
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269 Modifies the index or directory cache
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274 <div class="sectionbody">
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275 <p><em>git-update-index</em>
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276 [--add] [--remove | --force-remove] [--replace]
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277 [--refresh [-q] [--unmerged] [--ignore-missing]]
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278 [--cacheinfo <mode> <object> <file>]*
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280 [--info-only] [--index-info]
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283 [--] [<file>]*</p>
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285 <h2>DESCRIPTION</h2>
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286 <div class="sectionbody">
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287 <p>Modifies the index or directory cache. Each file mentioned is updated
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288 into the index and any <em>unmerged</em> or <em>needs updating</em> state is
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290 <p>The way "git-update-index" handles files it is told about can be modified
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291 using the various options:</p>
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294 <div class="sectionbody">
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301 If a specified file isn't in the index already then it's
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303 Default behaviour is to ignore new files.
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311 If a specified file is in the index but is missing then it's
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313 Default behaviour is to ignore removed file.
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321 Looks at the current index and checks to see if merges or
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322 updates are needed by checking stat() information.
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330 Quiet. If --refresh finds that the index needs an update, the
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331 default behavior is to error out. This option makes
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332 git-update-index continue anyway.
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340 If --refresh finds unmerged changes in the index, the default
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341 behavior is to error out. This option makes git-update-index
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350 Ignores missing files during a --refresh
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354 --cacheinfo <mode> <object> <path>
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358 Directly insert the specified info into the index.
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366 Read index information from stdin.
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374 Set the execute permissions on the updated files.
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382 Do not create objects in the object database for all
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383 <file> arguments that follow this flag; just insert
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384 their object IDs into the index.
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392 Remove the file from the index even when the working directory
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393 still has such a file. (Implies --remove.)
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401 By default, when a file <tt>path</tt> exists in the index,
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402 git-update-index refuses an attempt to add <tt>path/file</tt>.
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403 Similarly if a file <tt>path/file</tt> exists, a file <tt>path</tt>
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404 cannot be added. With --replace flag, existing entries
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405 that conflicts with the entry being added are
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406 automatically removed with warning messages.
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414 Instead of taking list of paths from the command line,
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415 read list of paths from the standard input. Paths are
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416 separated by LF (i.e. one path per line) by default.
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424 Report what is being added and removed from index.
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432 Only meaningful with <tt>--stdin</tt>; paths are separated with
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433 NUL character instead of LF.
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441 Do not interpret any more arguments as options.
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450 Note that files beginning with <em>.</em> are discarded. This includes
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451 <tt>./file</tt> and <tt>dir/./file</tt>. If you don't want this, then use
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453 The same applies to directories ending <em>/</em> and paths with <em>//</em>
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458 <h2>Using --refresh</h2>
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459 <div class="sectionbody">
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460 <p><em>--refresh</em> does not calculate a new sha1 file or bring the index
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461 up-to-date for mode/content changes. But what it <strong>does</strong> do is to
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462 "re-match" the stat information of a file with the index, so that you
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463 can refresh the index for a file that hasn't been changed but where
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464 the stat entry is out of date.</p>
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465 <p>For example, you'd want to do this after doing a "git-read-tree", to link
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466 up the stat index details with the proper files.</p>
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468 <h2>Using --cacheinfo or --info-only</h2>
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469 <div class="sectionbody">
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470 <p><em>--cacheinfo</em> is used to register a file that is not in the
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471 current working directory. This is useful for minimum-checkout
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473 <p>To pretend you have a file with mode and sha1 at path, say:</p>
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474 <div class="listingblock">
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475 <div class="content">
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476 <pre><tt>$ git-update-index --cacheinfo mode sha1 path</tt></pre>
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478 <p><em>--info-only</em> is used to register files without placing them in the object
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479 database. This is useful for status-only repositories.</p>
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480 <p>Both <em>--cacheinfo</em> and <em>--info-only</em> behave similarly: the index is updated
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481 but the object database isn't. <em>--cacheinfo</em> is useful when the object is
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482 in the database but the file isn't available locally. <em>--info-only</em> is
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483 useful when the file is available, but you do not wish to update the
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484 object database.</p>
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486 <h2>Using --index-info</h2>
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487 <div class="sectionbody">
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488 <p><tt>--index-info</tt> is a more powerful mechanism that lets you feed
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489 multiple entry definitions from the standard input, and designed
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490 specifically for scripts. It can take inputs of three formats:</p>
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494 mode SP sha1 TAB path
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496 <p>The first format is what "git-apply --index-info"
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497 reports, and used to reconstruct a partial tree
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498 that is used for phony merge base tree when falling
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499 back on 3-way merge.</p>
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503 mode SP type SP sha1 TAB path
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505 <p>The second format is to stuff git-ls-tree output
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506 into the index file.</p>
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510 mode SP sha1 SP stage TAB path
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512 <p>This format is to put higher order stages into the
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513 index file and matches git-ls-files --stage output.</p>
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516 <p>To place a higher stage entry to the index, the path should
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517 first be removed by feeding a mode=0 entry for the path, and
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518 then feeding necessary input lines in the third format.</p>
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519 <p>For example, starting with this index:</p>
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520 <div class="listingblock">
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521 <div class="content">
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522 <pre><tt>$ git ls-files -s
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523 100644 8a1218a1024a212bb3db30becd860315f9f3ac52 0 frotz</tt></pre>
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525 <p>you can feed the following input to <tt>--index-info</tt>:</p>
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526 <div class="listingblock">
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527 <div class="content">
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528 <pre><tt>$ git update-index --index-info
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529 0 0000000000000000000000000000000000000000 frotz
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530 100644 8a1218a1024a212bb3db30becd860315f9f3ac52 1 frotz
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531 100755 8a1218a1024a212bb3db30becd860315f9f3ac52 2 frotz</tt></pre>
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533 <p>The first line of the input feeds 0 as the mode to remove the
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534 path; the SHA1 does not matter as long as it is well formatted.
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535 Then the second and third line feeds stage 1 and stage 2 entries
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536 for that path. After the above, we would end up with this:</p>
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537 <div class="listingblock">
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538 <div class="content">
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539 <pre><tt>$ git ls-files -s
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540 100644 8a1218a1024a212bb3db30becd860315f9f3ac52 1 frotz
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541 100755 8a1218a1024a212bb3db30becd860315f9f3ac52 2 frotz</tt></pre>
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545 <div class="sectionbody">
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546 <p>To update and refresh only the files already checked out:</p>
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547 <div class="listingblock">
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548 <div class="content">
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549 <pre><tt>$ git-checkout-index -n -f -a && git-update-index --ignore-missing --refresh</tt></pre>
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552 <h2>Configuration</h2>
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553 <div class="sectionbody">
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554 <p>The command honors <tt>core.filemode</tt> configuration variable. If
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555 your repository is on an filesystem whose executable bits are
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556 unreliable, this should be set to <em>false</em> (see <a href="git-repo-config.html">git-repo-config(1)</a>).
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557 This causes the command to ignore differences in file modes recorded
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558 in the index and the file mode on the filesystem if they differ only on
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559 executable bit. On such an unfortunate filesystem, you may
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560 need to use <tt>git-update-index --chmod=</tt>.</p>
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563 <div class="sectionbody">
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564 <p><a href="git-repo-config.html">git-repo-config(1)</a></p>
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567 <div class="sectionbody">
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568 <p>Written by Linus Torvalds <torvalds@osdl.org></p>
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570 <h2>Documentation</h2>
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571 <div class="sectionbody">
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572 <p>Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.</p>
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575 <div class="sectionbody">
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576 <p>Part of the <a href="git.html">git(7)</a> suite</p>
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579 <div id="footer-text">
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580 Last updated 27-Dec-2005 00:16:52 PDT
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