ing the
temporary file --- it is removed when <code>GIT_EXTERNAL_DIFF</code> exits.</p>
</div>
<div class="paragraph">
<p>For a path that is unmerged, <code>GIT_EXTERNAL_DIFF</code> is called with 1
parameter, &lt;path&gt;.</p>
</div>
<div class="paragraph">
<p>For each path <code>GIT_EXTERNAL_DIFF</code> is called, two environment variables,
<code>GIT_DIFF_PATH_COUNTER</code> and <code>GIT_DIFF_PATH_TOTAL</code> are set.</p>
</div>
</dd>
<dt class="hdlist1"><code>GIT_DIFF_PATH_COUNTER</code></dt>
<dd>
<p>A