Handlebars.jsでSSIライクなインクルードを行うヘルパー関数 ref: http://qiita.com/hail2u/items/ea68e89355d25d357ee3

file3.txt

$ node include-helper.js test,tmpl
<p>apple is sweet and red.</p>
<p>orange is sweet and orange.</p>
<p>grape is sweet and purple.</p>

include-helper.js

#!/usr/bin/env node

var fs = require('fs');
var handlebars = require('handlebars');

handlebars.registerHelper('include', function (f, d) {
  return new handlebars.SafeString(applyTemplate(f, this));
});

function applyTemplate(f, d) {
  var tmpl = handlebars.compile(fs.readFileSync(f, 'UTF-8'));

  return tmpl(d);
}

console.log(applyTemplate(process.argv.slice(2).shift(), {
  "fruits": [
    {"name": "apple", "color": "red"},
    {"name": "orange", "color": "orange"},
    {"name": "grape", "color": "purple"}
  ]
}));

include.tmpl

<p>{{name}} is sweet and {{color}}.</p>

test.tmpl

{{#fruits}}{{include "include.tmpl"}}{{/fruits}}