dgrep features 

• default ignore .git etc.

• 'prune|p:s'

• 'type|t:s'

• no type given defaults to all

• uses '--' to pass rest of ARGV to grep

$ dgrep -t mason dateFormat -- -l
secure/promo/index.html

$ dgrep -t mason dateFormat -- -B 2
secure/promo/index.html-    <script type="text/javascript">
secure/promo/index.html-        jQuery(function() {
secure/promo/index.html:            jQuery(".datepicker").datepicker({ dateFormat: 'd M yy' });