install-angular-build.js

// Npm install Angular libraries into application root folder (APP_ROOT_PATH),
// either release or current build packages
// Examples:
//   gulp install-example-angular --build  // use current build packages
//   gulp install-example-angular --build=2.0.0-b43f954  // use tagged packages
//   gulp install-example-angular          // restore release packages
//
// Find the tags here: https://github.com/angular/core-builds/releases
//
// Originally from https://github.com/angular/angular.io/blob/v2/gulpfile.js#L490

gulp.task('install-example-angular', installExampleAngular);

function installExampleAngular() {
  var APP_ROOT_PATH = '/';
  var sources;
  var template;
  var libs = [
    'core', 'common', 'compiler', 'compiler-cli',
    'platform-browser', 'platform-browser-dynamic',
    'forms', 'http', 'router', 'upgrade'];

  var build = argv.build;
  if (build) {
    if (typeof build === 'string') {
      build = (build[0]==='#' ? '' : '#') + build;
    } else {
      build = '';
    }
  } else{
    build = 'npm';
  }
  // Like: "angular/core-builds" or "@angular/core"
  sources = libs.map( lib => {
    return build === 'npm'
      ? `@angular/${lib}`
      : `git+https://github.com/angular/${lib}-builds${build}`;
  });

  if (argv.build) { sources.push('@angular/tsc-wrapped');} // tsc-wrapped needed for builds

  console.log(`Installing Angular packages from ${build === 'npm' ? 'NPM' : 'BUILD ' + build}`);

  var spawnInfo = spawnExt('rm', ['-rf', 'node_modules/@angular'], { cwd: APP_ROOT_PATH});
  return spawnInfo.promise
    .then(() =>  {
      spawnInfo = spawnExt('npm', ['install', ...sources], {cwd: APP_ROOT_PATH});
      return spawnInfo.promise
    });
}

This is a gulp (mostly node) script to replace the current contents of your apps node_modules with the current build, a tagged build, or the release build of Angular packages.

It does NOT swap other packages that may be relevant such as zones or RxJS