This is an example grunt plugin for compiling templates to jst or html, using consolidate.js as a "template engine normalizer"

any-name.json

{
  "en-us": {
    "alert": {
      "default": {
          "modifier": "",
          "heading": "Default",
          "strong": "Default Alert!",
          "message": "Best check yo self, you're not looking too good."
      },
      "warning": {
          "modifier": " alert-warning",
          "heading": "Warning",
          "strong": "Warning!",
          "message": "Best check yo self, you're not looking too good."
      },
      "error": {
          "modifier": " alert-error",
          "heading": "Error",
          "strong": "Oh Snap!",
          "message": "Change a few things up and try submitting again."
      },
      "success": {
          "modifier": " alert-success",
          "heading": "Success",
          "strong": "Well Done!",
          "message": "You successfully read this important alert message."
      },
      "info": {
          "modifier": " alert-info",
          "heading": "Information",
          "strong": "Heads Up!",
          "message": "This alert needs your attention, but it's not super important."
      }
    }
  }
}

gruntfile.js

/*global module:false*/
module.exports = function(grunt) {

    'use strict';

    // Project configuration
    grunt.initConfig({

        templates: {
            arbitraryTargetOne: {
                options: {
                    engine: "handlebars", // see assemble docs for the options available for each engine
                    language: "en-us",    // if empty, then the base object in each json file will be the partial or component
                    flatten: false,       // if false, the src files will retain their folder structure in the dest
                    production: false,
                    layout: 'docs/templates/layout.mustache',
                    partials: ['src/templates/partials/*.mustache', '../docs/templates/partials/*.mustache'],
                    data: ['src/templates/data.json', 'src/templates/partials/*.json']
                },
                files: {
                    "docs/": ['docs/templates/pages/*.mustache','app/templates/pages/*.mustache']
                }
            }
        }

    // These plugins provide necessary tasks.
    grunt.loadNpmTasks('grunt-assemble');

    // Register default task to be run.
    grunt.registerTask('default', ['templates']);

};