title: How do I list all files a given grunt task depends on for a Makefile?
body: <p>As <a href="https://github.com/gruntjs/grunt/issues/866" rel="nofollow">Grunt doesn't support only rebuilding what has changed</a>, I'd like to wrap a Makefile around it, to just compute the set of "input" files and not invoke grunt at all, unless any of them have changed since last build.</p>
  
  <p>Can you tell grunt to just list what files a given task would depend on on stdout somehow?</p>