convert template file to variable string

convert.js

var fs = require('fs'),
    Buffer = require('buffer').Buffer;

fs.readFile('base.tpl', function(err, data) {
  if (err) return;

  var srcArray = data.toString().split('\r\n'),
      destArray = [];
  srcArray.forEach(function(content) {
    destArray.push(content.replace(/(\t*).*/, function(match, $1, offset, string) {
      return $1 + '\'' + string.substr($1.length) + '\' +';
    }));
  });

  var file = fs.createWriteStream('base.js');
  destArray.forEach(function(content) {
    file.write(content + '\r\n');
  })
});