 is the default mode in a
<a href="#def_checkout">checkout</a> when checking out files from the
<a href="#def_index">index</a> or a <a href="#def_tree-ish">tree-ish</a>.  In
contrast, no-overlay mode also deletes tracked files not
present in the source, similar to <em>rsync --delete</em>.</p>
</dd>
<dt class="hdlist1"><a id="def_pack"></a>pack</dt>
<dd>
<p>A set of objects which have been compressed into one file (to save space
or to transmit them efficiently).</p>
</dd>
<dt class="hdlist1"><a id="def_pack_