How do I modify gitstats to only utilize a specified file extension for it's statistics?
<p>The website of the statistics generator in question is:</p>

<pre><code>http://gitstats.sourceforge.net/
</code></pre>

<p>Its git repository can be cloned from:</p>

<pre><code>git clone git://repo.or.cz/gitstats.git
</code></pre>

<p>What I want to do is something like:</p>

<pre><code>./gitstatus --ext=".py" /input/foo /output/bar
</code></pre>

<p>Failing being able to easily pass the above option without heavy modification, I'd just hardcore the file extension I want to be included.</p>

<p>However, I'm unsure of the relevant section of code to modify and even if I did no, I'm unsure of how to start such modifications.</p>

<p>It's seems like it'd be rather simple but alas...</p>
