Alex Rickabaugh d442b6855f feat(service-worker): introduce the @angular/service-worker package (#19274)
This service worker is a conceptual derivative of the existing @angular/service-worker maintained at github.com/angular/mobile-toolkit, but has been rewritten to support use across a much wider variety of applications.

Entrypoints include:

@angular/service-worker: a library for use within Angular client apps to communicate with the service worker.
@angular/service-worker/gen: a library for generating ngsw.json files from glob-based SW config files.
@angular/service-worker/ngsw-worker.js: the bundled service worker script itself.
@angular/service-worker/ngsw-cli.js: a CLI tool for generating ngsw.json files from glob-based SW config files.
2017-09-28 16:18:12 -07:00

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TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {sha1} from './sha1';
export type ManifestHash = string;
export interface Manifest {
configVersion: number;
appData?: {[key: string]: string};
index: string;
assetGroups?: AssetGroupConfig[];
dataGroups?: DataGroupConfig[];
hashTable: {[url: string]: string};
}
export interface AssetGroupConfig {
name: string;
installMode: 'prefetch'|'lazy';
updateMode: 'prefetch'|'lazy';
urls: string[];
patterns: string[];
}
export interface DataGroupConfig {
name: string;
version: number;
strategy: 'freshness'|'performance';
patterns: string[];
maxSize: number;
timeoutMs?: number;
refreshAheadMs?: number;
maxAge: number;
}
export function hashManifest(manifest: Manifest): ManifestHash {
return sha1(JSON.stringify(manifest));
}