Added base template for config ui.

appengine/config_service/ui/bower_components/webcomponentsjs/gulpfile.js

Index: appengine/config_service/ui/bower_components/webcomponentsjs/gulpfile.js
diff --git a/appengine/config_service/ui/bower_components/webcomponentsjs/gulpfile.js b/appengine/config_service/ui/bower_components/webcomponentsjs/gulpfile.js
new file mode 100644
index 0000000000000000000000000000000000000000..7d7f8400762e9bd196aafff80f466f52e35147a0
--- /dev/null
+++ b/appengine/config_service/ui/bower_components/webcomponentsjs/gulpfile.js
@@ -0,0 +1,208 @@
+/**
+ * @license
+ * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+ */
+
+'use strict';
+
+/* eslint-env node */
+/* eslint-disable no-console */
+
+const gulp = require('gulp');
+const sourcemaps = require('gulp-sourcemaps');
+const buffer = require('vinyl-buffer');
+const rename = require('gulp-rename');
+const rollup = require('rollup-stream');
+const source = require('vinyl-source-stream');
+const del = require('del');
+const bower = require('bower');
+const runseq = require('run-sequence');
+const closure = require('google-closure-compiler').gulp();
+const babel = require('rollup-plugin-babel');
+
+function debugify(sourceName, fileName, extraRollupOptions) {
+  if (!fileName)
+    fileName = sourceName;
+
+  const options = {
+    entry: `./entrypoints/${sourceName}-index.js`,
+    format: 'iife',
+    moduleName: 'webcomponentsjs'
+  };
+
+  Object.assign(options, extraRollupOptions);
+
+  return rollup(options)
+  .pipe(source(`${sourceName}-index.js`), 'entrypoints')
+  .pipe(rename(fileName + '.js'))
+  .pipe(gulp.dest('./'))
+}
+
+function closurify(sourceName, fileName) {
+  if (!fileName) {
+    fileName = sourceName;
+  }
+
+  const closureOptions = {
+    new_type_inf: true,
+    compilation_level: 'ADVANCED',
+    language_in: 'ES6_STRICT',
+    language_out: 'ES5_STRICT',
+    output_wrapper: '(function(){\n%output%\n}).call(self)',
+    assume_function_wrapper: true,
+    js_output_file: `${fileName}.js`,
+    warning_level: 'VERBOSE',
+    rewrite_polyfills: false,
+    externs: [
+      'externs/webcomponents.js',
+      'bower_components/custom-elements/externs/custom-elements.js',
+      'bower_components/html-imports/externs/html-imports.js',
+      'bower_components/shadycss/externs/shadycss-externs.js',
+      'bower_components/shadydom/externs/shadydom.js'
+    ],
+    // entry_point: `/entrypoints/${sourceName}-index.js`,
+    // dependency_mode: 'STRICT'
+  };
+
+  //   const closureSources = [
+  //   'src/*.js',
+  //   'entrypoints/*.js',
+  //   'bower_components/custom-elements/src/**/*.js',
+  //   'bower_components/html-imports/src/*.js',
+  //   'bower_components/es6-promise/dist/es6-promise.auto.min.js',
+  //   'bower_components/webcomponents-platform/*.js',
+  //   'bower_components/shadycss/{src,entrypoints}/*.js',
+  //   'bower_components/shadydom/src/*.js',
+  //   'bower_components/template/*.js'
+  // ];
+
+  const rollupOptions = {
+    entry: `entrypoints/${sourceName}-index.js`,
+    format: 'iife',
+    moduleName: 'webcomponents',
+    sourceMap: true,
+    context: 'window'
+  };
+
+  return rollup(rollupOptions)
+  .pipe(source(`${sourceName}-index.js`, 'entrypoints'))
+  .pipe(buffer())
+  .pipe(sourcemaps.init({loadMaps: true}))
+  .pipe(closure(closureOptions))
+  .pipe(sourcemaps.write('.'))
+  .pipe(gulp.dest('.'));
+
+  // return gulp.src(sources, {base: './'})
+  // .pipe(sourcemaps.init({loadMaps: true}))
+  // .pipe(closure(closureOptions))
+  // .pipe(sourcemaps.write('.'))
+  // .pipe(gulp.dest('.'));
+}
+
+gulp.task('debugify-hi', () => {
+  return debugify('webcomponents-hi')
+});
+
+gulp.task('debugify-hi-ce', () => {
+  return debugify('webcomponents-hi-ce')
+});
+
+gulp.task('debugify-hi-sd-ce', () => {
+  return debugify('webcomponents-hi-sd-ce')
+});
+
+gulp.task('debugify-hi-sd-ce-pf', () => {
+  // The es6-promise polyfill needs to set the correct context.
+  // See https://github.com/rollup/rollup/wiki/Troubleshooting#this-is-undefined
+  const extraOptions = {context: 'window'};
+  return debugify('webcomponents-hi-sd-ce-pf', 'webcomponents-lite', extraOptions)
+});
+
+gulp.task('debugify-sd-ce', () => {
+  return debugify('webcomponents-sd-ce')
+});
+
+gulp.task('closurify-hi', () => {
+  return closurify('webcomponents-hi')
+});
+
+gulp.task('closurify-hi-ce', () => {
+  return closurify('webcomponents-hi-ce')
+});
+
+gulp.task('closurify-hi-sd-ce', () => {
+  return closurify('webcomponents-hi-sd-ce')
+});
+
+gulp.task('closurify-hi-sd-ce-pf', () => {
+  return closurify('webcomponents-hi-sd-ce-pf', 'webcomponents-lite')
+});
+
+gulp.task('closurify-sd-ce', () => {
+  return closurify('webcomponents-sd-ce')
+});
+
+function singleLicenseComment() {
+  let hasLicense = false;
+  return (comment) => {
+    if (hasLicense) {
+      return false;
+    }
+    return hasLicense = /@license/.test(comment);
+  }
+}
+
+const babelOptions = {
+  presets: 'babili',
+  shouldPrintComment: singleLicenseComment()
+};
+
+gulp.task('debugify-ce-es5-adapter', () => {
+  return debugify('custom-elements-es5-adapter', '', {plugins: [babel(babelOptions)]});
+});
+
+gulp.task('refresh-bower', () => {
+  return del('bower_components').then(() => {
+    let resolve, reject;
+    let p = new Promise((res, rej) => {resolve = res; reject = rej});
+    bower.commands.install().on('end', () => resolve()).on('error', (e) => reject(e));
+    return p;
+  });
+});
+
+gulp.task('default', (cb) => {
+  runseq('refresh-bower', 'closure', cb);
+});
+
+gulp.task('clean-builds', () => {
+  return del(['custom-elements-es5-adapter.js{,.map}', 'webcomponents*.js{,.map}', '!webcomponents-loader.js']);
+});
+
+gulp.task('debug', (cb) => {
+  const tasks = [
+    'debugify-hi',
+    'debugify-hi-ce',
+    'debugify-hi-sd-ce',
+    'debugify-hi-sd-ce-pf',
+    'debugify-sd-ce',
+    'debugify-ce-es5-adapter'
+  ];
+  runseq('clean-builds', tasks, cb);
+});
+
+gulp.task('closure', (cb) => {
+  const tasks = [
+    'closurify-hi',
+    'closurify-hi-ce',
+    'closurify-hi-sd-ce',
+    'closurify-hi-sd-ce-pf',
+    'closurify-sd-ce',
+    'debugify-ce-es5-adapter'
+  ];
+  runseq('clean-builds', ...tasks, cb);
+});