Choose metalsmith collection from .md file about collections HOT 1 CLOSED

@fracu I just accomplished this today using Handlebars' lookup helper:

My handlebars layout:

{{#each (lookup collections rollup)}}
  <li>
    <h3><a href="{{../relative this.path }}">{{ this.title }}</a></h3>
    {{{ this.excerpt }}}
   </li>
{{/each}}

My yaml front-matter:

---
title: Recent Articles
layout: rollup.html
rollup: recent-articles
associated-collection: articles
---

I use the rollup property from my YAML front-matter to define my dynamic collection. Then I use the Handlebars lookup helper inside a subexpression (the parens) in the #each.

from collections.