collect all the files known to harp as an array. http://harpjs.com/recipes/print-debugging

harp-flatten-public-json-contents.html.ejs

<% const flattenPublicJSON = (obj = {}, res = [], extraKey = '/') => {
  for(key in obj){
    if(Array.isArray(obj[key])){
      flattenPublicJSON(obj[key], res, `${extraKey}`);
    }else if(key === '_contents'){
      res.push(`${extraKey}/${obj[key]}`);
     } else if(key === '_data'){
      //ignore
     } else if(typeof obj[key] !== 'object'){
      res.push(`${extraKey}${obj[key]}`);
     }else{
        flattenPublicJSON(obj[key], res, `${extraKey}${key}/`);
     };
  };
  return res;
};%>
<pre><%- JSON.stringify(flattenPublicJSON(public), null, '\t') %></pre>