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chromium / external / gitster / git-htmldocs / e03f5996f0dbbc346d213bbce380ef9777f6423e / . / git-fsmonitor--daemon.html
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Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]1<!DOCTYPE html>
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442<body class="manpage">
443<div id="header">
444<h1>git-fsmonitor&#x2d;&#x2d;daemon(1) Manual Page</h1>
445<h2 id="_name">NAME</h2>
446<div class="sectionbody">
447<p>git-fsmonitor--daemon - A Built-in Filesystem Monitor</p>
448</div>
449</div>
450<div id="content">
451<div class="sect1">
452<h2 id="_synopsis">SYNOPSIS</h2>
453<div class="sectionbody">
454<div class="verseblock">
455<pre class="content"><em>git fsmonitor&#x2d;&#x2d;daemon</em> start
456<em>git fsmonitor&#x2d;&#x2d;daemon</em> run
457<em>git fsmonitor&#x2d;&#x2d;daemon</em> stop
458<em>git fsmonitor&#x2d;&#x2d;daemon</em> status</pre>
459</div>
460</div>
461</div>
462<div class="sect1">
463<h2 id="_description">DESCRIPTION</h2>
464<div class="sectionbody">
465<div class="paragraph">
466<p>A daemon to watch the working directory for file and directory
467changes using platform-specific filesystem notification facilities.</p>
468</div>
469<div class="paragraph">
Junio C Hamanodc392382024-10-11 18:57:29[diff] [blame]470<p>This daemon communicates directly with commands like <code>git</code> <code>status</code>
Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]471using the <a href="technical/api-simple-ipc.html">simple IPC</a> interface
472instead of the slower <a href="githooks.html">githooks(5)</a> interface.</p>
473</div>
474<div class="paragraph">
475<p>This daemon is built into Git so that no third-party tools are
476required.</p>
477</div>
478</div>
479</div>
480<div class="sect1">
481<h2 id="_options">OPTIONS</h2>
482<div class="sectionbody">
483<div class="dlist">
484<dl>
485<dt class="hdlist1">start</dt>
486<dd>
487<p>Starts a daemon in the background.</p>
488</dd>
489<dt class="hdlist1">run</dt>
490<dd>
491<p>Runs a daemon in the foreground.</p>
492</dd>
493<dt class="hdlist1">stop</dt>
494<dd>
495<p>Stops the daemon running in the current working
496directory, if present.</p>
497</dd>
498<dt class="hdlist1">status</dt>
499<dd>
500<p>Exits with zero status if a daemon is watching the
501current working directory.</p>
502</dd>
503</dl>
504</div>
505</div>
506</div>
507<div class="sect1">
508<h2 id="_remarks">REMARKS</h2>
509<div class="sectionbody">
510<div class="paragraph">
511<p>This daemon is a long running process used to watch a single working
512directory and maintain a list of the recently changed files and
Junio C Hamanodc392382024-10-11 18:57:29[diff] [blame]513directories. Performance of commands such as <code>git</code> <code>status</code> can be
Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]514increased if they just ask for a summary of changes to the working
515directory and can avoid scanning the disk.</p>
516</div>
517<div class="paragraph">
518<p>When <code>core.fsmonitor</code> is set to <code>true</code> (see <a href="git-config.html">git-config(1)</a>)
Junio C Hamanodc392382024-10-11 18:57:29[diff] [blame]519commands, such as <code>git</code> <code>status</code>, will ask the daemon for changes and
Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]520automatically start it (if necessary).</p>
521</div>
522<div class="paragraph">
523<p>For more information see the "File System Monitor" section in
524<a href="git-update-index.html">git-update-index(1)</a>.</p>
525</div>
526</div>
527</div>
528<div class="sect1">
529<h2 id="_caveats">CAVEATS</h2>
530<div class="sectionbody">
531<div class="paragraph">
532<p>The fsmonitor daemon does not currently know about submodules and does
533not know to filter out filesystem events that happen within a
534submodule. If fsmonitor daemon is watching a super repo and a file is
535modified within the working directory of a submodule, it will report
536the change (as happening against the super repo). However, the client
537will properly ignore these extra events, so performance may be affected
538but it will not cause an incorrect result.</p>
539</div>
540<div class="paragraph">
541<p>By default, the fsmonitor daemon refuses to work with network-mounted
542repositories; this may be overridden by setting <code>fsmonitor.allowRemote</code> to
543<code>true</code>. Note, however, that the fsmonitor daemon is not guaranteed to work
544correctly with all network-mounted repositories, so such use is considered
545experimental.</p>
546</div>
547<div class="paragraph">
548<p>On Mac OS, the inter-process communication (IPC) between various Git
549commands and the fsmonitor daemon is done via a Unix domain socket (UDS)&#8201;&#8212;&#8201;a
550special type of file&#8201;&#8212;&#8201;which is supported by native Mac OS filesystems,
551but not on network-mounted filesystems, NTFS, or FAT32. Other filesystems
552may or may not have the needed support; the fsmonitor daemon is not guaranteed
553to work with these filesystems and such use is considered experimental.</p>
554</div>
555<div class="paragraph">
Junio C Hamanodc392382024-10-11 18:57:29[diff] [blame]556<p>By default, the socket is created in the .<code>git</code> directory. However, if the
557.<code>git</code> directory is on a network-mounted filesystem, it will instead be
Junio C Hamanoe03f5992025-04-23 22:24:29[diff] [blame^]558created at <code>$HOME/.git-fsmonitor-*</code> unless <code>$HOME</code> itself is on a
Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]559network-mounted filesystem, in which case you must set the configuration
560variable <code>fsmonitor.socketDir</code> to the path of a directory on a Mac OS native
561filesystem in which to create the socket file.</p>
562</div>
563<div class="paragraph">
Junio C Hamanodc392382024-10-11 18:57:29[diff] [blame]564<p>If none of the above directories (.<code>git</code>, <code>$HOME</code>, or <code>fsmonitor.socketDir</code>)
Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]565is on a native Mac OS file filesystem the fsmonitor daemon will report an
566error that will cause the daemon and the currently running command to exit.</p>
567</div>
568</div>
569</div>
570<div class="sect1">
571<h2 id="_configuration">CONFIGURATION</h2>
572<div class="sectionbody">
573<div class="paragraph">
574<p>Everything below this line in this section is selectively included
575from the <a href="git-config.html">git-config(1)</a> documentation. The content is the same
576as what&#8217;s found there:</p>
577</div>
578<div class="dlist">
579<dl>
580<dt class="hdlist1">fsmonitor.allowRemote</dt>
581<dd>
582<p>By default, the fsmonitor daemon refuses to work with network-mounted
583repositories. Setting <code>fsmonitor.allowRemote</code> to <code>true</code> overrides this
584behavior. Only respected when <code>core.fsmonitor</code> is set to <code>true</code>.</p>
585</dd>
586<dt class="hdlist1">fsmonitor.socketDir</dt>
587<dd>
588<p>This Mac OS-specific option, if set, specifies the directory in
589which to create the Unix domain socket used for communication
590between the fsmonitor daemon and various Git commands. The directory must
591reside on a native Mac OS filesystem. Only respected when <code>core.fsmonitor</code>
592is set to <code>true</code>.</p>
593</dd>
594</dl>
595</div>
596</div>
597</div>
598<div class="sect1">
599<h2 id="_git">GIT</h2>
600<div class="sectionbody">
601<div class="paragraph">
602<p>Part of the <a href="git.html">git(1)</a> suite</p>
603</div>
604</div>
605</div>
606</div>
607<div id="footer">
608<div id="footer-text">
Junio C Hamanod6a33e42025-02-18 23:45:11[diff] [blame]609Last updated 2025-02-14 21:38:14 -0800
Junio C Hamanob96f40a2024-08-01 00:57:25[diff] [blame]610</div>
611</div>
612</body>
613</html>