Combine all sass files into a single file
<p>Is there any option available in gulp-sass to combine sass files? </p>

<p>For example:</p>

<p><strong>main.scss:</strong></p>

<pre><code>$var: red;
</code></pre>

<p><strong>control.scss:</strong></p>

<pre><code>@import 'main';
.a{
  color: $var;
}
</code></pre>

<p>The combined output file should be single scss file like below</p>

<pre><code>$var: red;
.a{
  color: $var;
}
</code></pre>