udemy-react/02/node_modules/workbox-build/build/lib/populate-sw-template.js

"use strict";

/*
  Copyright 2018 Google LLC

  Use of this source code is governed by an MIT-style
  license that can be found in the LICENSE file or at
  https://opensource.org/licenses/MIT.
*/
const template = require('lodash.template');

const swTemplate = require('../templates/sw-template');

const errors = require('./errors');

const runtimeCachingConverter = require('./runtime-caching-converter');

const stringifyWithoutComments = require('./stringify-without-comments');

module.exports = ({
  cacheId,
  cleanupOutdatedCaches,
  clientsClaim,
  directoryIndex,
  ignoreURLParametersMatching,
  importScripts,
  manifestEntries,
  modulePathPrefix,
  navigateFallback,
  navigateFallbackBlacklist,
  navigateFallbackWhitelist,
  navigationPreload,
  offlineGoogleAnalytics,
  runtimeCaching,
  skipWaiting,
  workboxSWImport
}) => {
  // These are all options that can be passed to the precacheAndRoute() method.
  const precacheOptions = {
    directoryIndex,
    // An array of RegExp objects can't be serialized by JSON.stringify()'s
    // default behavior, so if it's given, convert it manually.
    ignoreURLParametersMatching: ignoreURLParametersMatching ? [] : undefined
  };
  let precacheOptionsString = JSON.stringify(precacheOptions, null, 2);

  if (ignoreURLParametersMatching) {
    precacheOptionsString = precacheOptionsString.replace(`"ignoreURLParametersMatching": []`, `"ignoreURLParametersMatching": [` + `${ignoreURLParametersMatching.join(', ')}]`);
  }

  let offlineAnalyticsConfigString;

  if (offlineGoogleAnalytics) {
    // If offlineGoogleAnalytics is a truthy value, we need to convert it to the
    // format expected by the template.
    offlineAnalyticsConfigString = offlineGoogleAnalytics === true ? // If it's the literal value true, then use an empty config string.
    '{}' : // Otherwise, convert the config object into a more complex string, taking
    // into account the fact that functions might need to be stringified.
    stringifyWithoutComments(offlineGoogleAnalytics);
  }

  try {
    const populatedTemplate = template(swTemplate)({
      cacheId,
      cleanupOutdatedCaches,
      clientsClaim,
      importScripts,
      manifestEntries,
      modulePathPrefix,
      navigateFallback,
      navigateFallbackBlacklist,
      navigateFallbackWhitelist,
      navigationPreload,
      offlineAnalyticsConfigString,
      precacheOptionsString,
      skipWaiting,
      runtimeCaching: runtimeCachingConverter(runtimeCaching),
      workboxSWImport
    }); // Clean up multiple blank lines.

    return populatedTemplate.replace(/\n{3,}/g, '\n\n').trim() + '\n';
  } catch (error) {
    throw new Error(`${errors['populating-sw-tmpl-failed']} '${error.message}'`);
  }
};