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105 lines
3.5 KiB
Text
105 lines
3.5 KiB
Text
/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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import template from 'lodash/template';
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import {errors} from './errors';
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import {GeneratePartial, ManifestEntry} from '../types';
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import {ModuleRegistry} from './module-registry';
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import {runtimeCachingConverter} from './runtime-caching-converter';
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import {stringifyWithoutComments} from './stringify-without-comments';
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import {swTemplate} from '../templates/sw-template';
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export function populateSWTemplate({
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cacheId,
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cleanupOutdatedCaches,
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clientsClaim,
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directoryIndex,
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disableDevLogs,
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ignoreURLParametersMatching,
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importScripts,
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manifestEntries = [],
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navigateFallback,
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navigateFallbackDenylist,
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navigateFallbackAllowlist,
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navigationPreload,
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offlineGoogleAnalytics,
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runtimeCaching = [],
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skipWaiting,
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}: GeneratePartial & {manifestEntries?: Array<ManifestEntry>}): string {
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// There needs to be at least something to precache, or else runtime caching.
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if (!(manifestEntries?.length > 0 || runtimeCaching.length > 0)) {
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throw new Error(errors['no-manifest-entries-or-runtime-caching']);
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}
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// These are all options that can be passed to the precacheAndRoute() method.
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const precacheOptions = {
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directoryIndex,
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// An array of RegExp objects can't be serialized by JSON.stringify()'s
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// default behavior, so if it's given, convert it manually.
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ignoreURLParametersMatching: ignoreURLParametersMatching
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? ([] as Array<RegExp>)
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: undefined,
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};
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let precacheOptionsString = JSON.stringify(precacheOptions, null, 2);
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if (ignoreURLParametersMatching) {
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precacheOptionsString = precacheOptionsString.replace(
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`"ignoreURLParametersMatching": []`,
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`"ignoreURLParametersMatching": [` +
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`${ignoreURLParametersMatching.join(', ')}]`,
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);
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}
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let offlineAnalyticsConfigString: string | undefined = undefined;
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if (offlineGoogleAnalytics) {
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// If offlineGoogleAnalytics is a truthy value, we need to convert it to the
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// format expected by the template.
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offlineAnalyticsConfigString =
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offlineGoogleAnalytics === true
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? // If it's the literal value true, then use an empty config string.
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'{}'
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: // Otherwise, convert the config object into a more complex string, taking
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// into account the fact that functions might need to be stringified.
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stringifyWithoutComments(offlineGoogleAnalytics);
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}
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const moduleRegistry = new ModuleRegistry();
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try {
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const populatedTemplate = template(swTemplate)({
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cacheId,
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cleanupOutdatedCaches,
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clientsClaim,
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disableDevLogs,
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importScripts,
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manifestEntries,
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navigateFallback,
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navigateFallbackDenylist,
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navigateFallbackAllowlist,
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navigationPreload,
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offlineAnalyticsConfigString,
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precacheOptionsString,
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runtimeCaching: runtimeCachingConverter(moduleRegistry, runtimeCaching),
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skipWaiting,
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use: moduleRegistry.use.bind(moduleRegistry),
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});
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const workboxImportStatements = moduleRegistry.getImportStatements();
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// We need the import statements for all of the Workbox runtime modules
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// prepended, so that the correct bundle can be created.
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return workboxImportStatements.join('\n') + populatedTemplate;
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} catch (error) {
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throw new Error(
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`${errors['populating-sw-tmpl-failed']} '${
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error instanceof Error && error.message ? error.message : ''
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}'`,
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);
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}
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}
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