Add support for templating

Author: john-scalingo

package.json

@@ -24,16 +24,17 @@
     "wizzy": "src/index.js"
   },
   "dependencies": {
+    "aws-sdk": "^2.133.0",
     "cli-table": "^0.3.1",
     "colors": "^1.1.2",
     "commander": "2.11.0",
     "fs": "0.0.1-security",
     "gifencoder": "^1.1.0",
+    "handlebars": "^4.1.2",
     "lodash": "^4.17.4",
     "nconf": "^0.8.5",
-    "request": "^2.83.0",
-    "aws-sdk": "^2.133.0",
     "png-file-stream": "^1.0.0",
+    "request": "^2.83.0",
     "sync-request": "^4.1.0"
   },
   "devDependencies": {

src/util/localfs.js

@@ -2,11 +2,13 @@
 
 "use strict";
 
-var fs = require('fs');
 var _ = require('lodash');
+var fs = require('fs');
+var Handlebars = require("handlebars");
 var Logger = require('./logger.js');
 var logger = new Logger('localfs');
 
+
 function LocalFS() {}
 
 // Creates a directory if it does not exists
@@ -39,13 +41,19 @@ LocalFS.prototype.checkExists = function(name, output, showOutput) {
 };
 
 LocalFS.prototype.readFile = function(name, showOnError) {
-  return fs.readFileSync(name, 'utf8', function(error, data) {
+  let templateSrc = fs.readFileSync(name, 'utf8', function(error, data) {
     if (!error) {
       logger.showResult('Read file ' + name + ' successfully.');
     } else {
       logger.showError('Error in reading file ' + name);
     }
   });
+  if(templateSrc === null) {
+    return null
+  }
+
+  var template = Handlebars.compile(templateSrc)
+  return template(process.env)
 };
 
 LocalFS.prototype.writeFile = function(name, content) {