defaults = {
  base: '/',                  // Angular2 application base folder
  target: 'es6',              // Can swap to es5
  indent: 2,                  // Indentation (spaces)
  useRelativePaths: false,    // Use components relative assset paths
  removeLineBreaks: false,    // Content will be included as one line
  removeModuleId: false,      // Remove the `moduleId` key from component definition after inlining styles
  templateExtension: '.html', // Update according to your file extension
  templateFunction: false,    // If using a function instead of a string for `templateUrl`, pass a reference to that function here
  templateProcessor: function (path, ext, file, callback) {/* ... */},
  styleProcessor: function (path, ext, file, callback) {/* ... */},
  customFilePath: function(ext, file) {/* ... */},
  supportNonExistentFiles: false // If html or css file do not exist just return empty content
};

import inlineTemplate from 'gulp-inline-ng2-template';
import htmlMinifier from 'html-minifier';

const pluginOptions = {
  base: mySrcPath,
  templateProcessor: minifyTemplate
};

function minifyTemplate(path, ext, file, cb) {
  try {
    var minifiedFile = htmlMinifier.minify(file, {
      collapseWhitespace: true,
      caseSensitive: true,
      removeComments: true,
      removeRedundantAttributes: true
    });
    cb(null, minifiedFile);
  }
  catch (err) {
    cb(err);
  }
}

/**
 *  Template function call signature and type return
 *
 * @Param{String}   filename
 * @Return{String}  returned filename
 */
templateFunction: function (filename) {
  // ...
  return newFilename;
}

//...
var inlineNg2Template = require('gulp-inline-ng2-template');

var result = gulp.src('./app/**/*.ts')
  .pipe(inlineNg2Template({ base: '/app' }))
  .pipe(tsc());

return result.js
  .pipe(gulp.dest(PATH.dest));

// ng2inlinetransform.js
var ng2TemplateParser = require('gulp-inline-ng2-template/parser');
var through = require('through2');
var options = {target: 'es5'};

function (file) {
  return through(function (buf, enc, next){
    ng2TemplateParser({contents: buf, path: file}, options)((err, result) => {
      this.push(result);
      process.nextTick(next);
    });
  });
}

// gulp task
return browserify('main.ts', {} )
  .add(config.angularApp.additionalFiles)
  .plugin(require('tsify'), {target: 'es5'})
  .transform('./ng2inlinetransform')
  .bundle()
  .pipe(gulp.dest(config.rootDirectory))

import {Component, View} from 'angular2/angular2';
@Component({ selector: 'app' })
@View({
  templateUrl: './app.html',
  styleUrls: ['./app.css'],
  directives: [CORE_DIRECTIVES]
})
class AppCmp {}

import {Component, View} from 'angular2/angular2';
@Component({ selector: 'app' })
@View({
  template: `
    <p>
      Hello {{ world }}
    </p>
  `,
  styles: [`
    .hello {
      color: red;
    }
  `],
  directives: [CORE_DIRECTIVES]
})
class AppCmp {}