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<body class="manpage">
<div id="header">
<h1>
git-mergetool(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>git-mergetool -
   Run merge conflict resolution tools to resolve merge conflicts
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>git mergetool</em> [--tool=&lt;tool&gt;] [-y | --[no-]prompt] [&lt;file&gt;&#8230;]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Use <code>git mergetool</code> to run one of several merge utilities to resolve
merge conflicts.  It is typically run after <em>git merge</em>.</p></div>
<div class="paragraph"><p>If one or more &lt;file&gt; parameters are given, the merge tool program will
be run to resolve differences on each file (skipping those without
conflicts).  Specifying a directory will include all unresolved files in
that path.  If no &lt;file&gt; names are specified, <em>git mergetool</em> will run
the merge tool program on every file with merge conflicts.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-t &lt;tool&gt;
</dt>
<dt class="hdlist1">
--tool=&lt;tool&gt;
</dt>
<dd>
<p>
        Use the merge resolution program specified by &lt;tool&gt;.
        Valid values include emerge, gvimdiff, kdiff3,
        meld, vimdiff, and tortoisemerge. Run <code>git mergetool --tool-help</code>
        for the list of valid &lt;tool&gt; settings.
</p>
<div class="paragraph"><p>If a merge resolution program is not specified, <em>git mergetool</em>
will use the configuration variable <code>merge.tool</code>.  If the
configuration variable <code>merge.tool</code> is not set, <em>git mergetool</em>
will pick a suitable default.</p></div>
<div class="paragraph"><p>You can explicitly provide a full path to the tool by setting the
configuration variable <code>mergetool.&lt;tool&gt;.path</code>. For example, you
can configure the absolute path to kdiff3 by setting
<code>mergetool.kdiff3.path</code>. Otherwise, <em>git mergetool</em> assumes the
tool is available in PATH.</p></div>
<div class="paragraph"><p>Instead of running one of the known merge tool programs,
<em>git mergetool</em> can be customized to run an alternative program
by specifying the command line to invoke in a configuration
variable <code>mergetool.&lt;tool&gt;.cmd</code>.</p></div>
<div class="paragraph"><p>When <em>git mergetool</em> is invoked with this tool (either through the
<code>-t</code> or <code>--tool</code> option or the <code>merge.tool</code> configuration
variable) the configured command line will be invoked with <code>$BASE</code>
set to the name of a temporary file containing the common base for
the merge, if available; <code>$LOCAL</code> set to the name of a temporary
file containing the contents of the file on the current branch;
<code>$REMOTE</code> set to the name of a temporary file containing the
contents of the file to be merged, and <code>$MERGED</code> set to the name
of the file to which the merge tool should write the result of the
merge resolution.</p></div>
<div class="paragraph"><p>If the custom merge tool correctly indicates the success of a
merge resolution with its exit code, then the configuration
variable <code>mergetool.&lt;tool&gt;.trustExitCode</code> can be set to <code>true</code>.
Otherwise, <em>git mergetool</em> will prompt the user to indicate the
success of the resolution after the custom tool has exited.</p></div>
</dd>
<dt class="hdlist1">
--tool-help
</dt>
<dd>
<p>
        Print a list of merge tools that may be used with <code>--tool</code>.
</p>
</dd>
<dt class="hdlist1">
-y
</dt>
<dt class="hdlist1">
--no-prompt
</dt>
<dd>
<p>
        Don&#8217;t prompt before each invocation of the merge resolution
        program.
</p>
</dd>
<dt class="hdlist1">
--prompt
</dt>
<dd>
<p>
        Prompt before each invocation of the merge resolution program.
        This is the default behaviour; the option is provided to
        override any configuration settings.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_temporary_files">TEMPORARY FILES</h2>
<div class="sectionbody">
<div class="paragraph"><p><code>git mergetool</code> creates <code>*.orig</code> backup files while resolving merges.
These are safe to remove once a file has been merged and its
<code>git mergetool</code> session has completed.</p></div>
<div class="paragraph"><p>Setting the <code>mergetool.keepBackup</code> configuration variable to <code>false</code>
causes <code>git mergetool</code> to automatically remove the backup as files
are successfully merged.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_git">GIT</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated 2013-06-10 20:01:55 UTC
</div>
</div>
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