parcel-runtime-precache-manifest/lib/index.js

A Parcel v2 runtime that helps generate a manifest for precaching assets

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const plugin_1 = require("@parcel/plugin");
exports.default = new plugin_1.Runtime({
    apply({ bundle: { target: { publicUrl }, env: { context } }, bundleGraph }) {
        return __awaiter(this, void 0, void 0, function* () {
            if (context != 'service-worker')
                return;
            const manifest = [];
            if (!publicUrl.endsWith('/'))
                publicUrl += '/';
            for (const bundle of bundleGraph.getBundles()) {
                let url = bundle.name;
                if (bundle.name.endsWith('index.html')) {
                    // These should never have the `index.html` at the end
                    url = url.slice(0, -10);
                }
                if (bundle.env.context !== 'service-worker' &&
                    !bundle.isInline // ignore bundles which are not outputted as separate files
                ) {
                    manifest.push({
                        url: publicUrl + url,
                        revision: bundle.hashReference
                    });
                }
            }
            return {
                filePath: 'precache-manifest.js',
                code: `self.__precacheManifest=${JSON.stringify(manifest)}`,
                isEntry: true
            };
        });
    }
});