@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
131 lines • 15.3 kB
JavaScript
;
/**
* @license
* Copyright Google LLC 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
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.prerenderPages = void 0;
const promises_1 = require("node:fs/promises");
const node_path_1 = require("node:path");
const node_url_1 = require("node:url");
const piscina_1 = __importDefault(require("piscina"));
async function prerenderPages(workspaceRoot, tsConfigPath, appShellOptions = {}, prerenderOptions = {}, outputFiles, document, inlineCriticalCss, maxThreads = 1) {
const allRoutes = await getAllRoutes(tsConfigPath, appShellOptions, prerenderOptions);
const outputFilesForWorker = {};
for (const { text, path } of outputFiles) {
switch ((0, node_path_1.extname)(path)) {
case '.mjs': // Contains the server runnable application code.
case '.css': // Global styles for critical CSS inlining.
outputFilesForWorker[path] = text;
break;
}
}
const renderWorker = new piscina_1.default({
filename: require.resolve('./render-worker'),
maxThreads: Math.min(allRoutes.size, maxThreads),
workerData: {
workspaceRoot,
outputFiles: outputFilesForWorker,
inlineCriticalCss,
document,
},
execArgv: [
'--no-warnings',
'--loader',
(0, node_url_1.pathToFileURL)((0, node_path_1.join)(__dirname, 'esm-in-memory-file-loader.js')).href, // Loader cannot be an absolute path on Windows.
],
});
const output = {};
const warnings = [];
const errors = [];
try {
const renderingPromises = [];
for (const route of allRoutes) {
const isAppShellRoute = appShellOptions.route === route;
const serverContext = isAppShellRoute ? 'app-shell' : 'ssg';
const render = renderWorker.run({ route, serverContext });
const renderResult = render.then(({ content, warnings, errors }) => {
if (content !== undefined) {
const outPath = isAppShellRoute
? 'index.html'
: node_path_1.posix.join(route.startsWith('/') ? route.slice(1) /* Remove leading slash */ : route, 'index.html');
output[outPath] = content;
}
if (warnings) {
warnings.push(...warnings);
}
if (errors) {
errors.push(...errors);
}
});
renderingPromises.push(renderResult);
}
await Promise.all(renderingPromises);
}
finally {
void renderWorker.destroy();
}
return {
errors,
warnings,
output,
};
}
exports.prerenderPages = prerenderPages;
async function getAllRoutes(tsConfigPath, appShellOptions, prerenderOptions) {
const { routesFile, discoverRoutes, routes: existingRoutes } = prerenderOptions;
const routes = new Set(existingRoutes);
const { route: appShellRoute } = appShellOptions;
if (appShellRoute !== undefined) {
routes.add(appShellRoute);
}
if (routesFile) {
const routesFromFile = (await (0, promises_1.readFile)(routesFile, 'utf8')).split(/\r?\n/);
for (let route of routesFromFile) {
route = route.trim();
if (route) {
routes.add(route);
}
}
}
if (discoverRoutes) {
const { parseAngularRoutes } = await Promise.resolve().then(() => __importStar(require('guess-parser')));
for (const { path } of parseAngularRoutes(tsConfigPath)) {
// Exclude dynamic routes as these cannot be pre-rendered.
if (!/[*:]/.test(path)) {
routes.add(path);
}
}
}
return routes;
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport { OutputFile } from 'esbuild';\nimport { readFile } from 'node:fs/promises';\nimport { extname, join, posix } from 'node:path';\nimport { pathToFileURL } from 'node:url';\nimport Piscina from 'piscina';\nimport type { RenderResult, ServerContext } from './render-page';\nimport type { WorkerData } from './render-worker';\n\ninterface PrerenderOptions {\n  routesFile?: string;\n  discoverRoutes?: boolean;\n  routes?: string[];\n}\n\ninterface AppShellOptions {\n  route?: string;\n}\n\nexport async function prerenderPages(\n  workspaceRoot: string,\n  tsConfigPath: string,\n  appShellOptions: AppShellOptions = {},\n  prerenderOptions: PrerenderOptions = {},\n  outputFiles: Readonly<OutputFile[]>,\n  document: string,\n  inlineCriticalCss?: boolean,\n  maxThreads = 1,\n): Promise<{\n  output: Record<string, string>;\n  warnings: string[];\n  errors: string[];\n}> {\n  const allRoutes = await getAllRoutes(tsConfigPath, appShellOptions, prerenderOptions);\n  const outputFilesForWorker: Record<string, string> = {};\n\n  for (const { text, path } of outputFiles) {\n    switch (extname(path)) {\n      case '.mjs': // Contains the server runnable application code.\n      case '.css': // Global styles for critical CSS inlining.\n        outputFilesForWorker[path] = text;\n        break;\n    }\n  }\n\n  const renderWorker = new Piscina({\n    filename: require.resolve('./render-worker'),\n    maxThreads: Math.min(allRoutes.size, maxThreads),\n    workerData: {\n      workspaceRoot,\n      outputFiles: outputFilesForWorker,\n      inlineCriticalCss,\n      document,\n    } as WorkerData,\n    execArgv: [\n      '--no-warnings', // Suppress `ExperimentalWarning: Custom ESM Loaders is an experimental feature...`.\n      '--loader',\n      pathToFileURL(join(__dirname, 'esm-in-memory-file-loader.js')).href, // Loader cannot be an absolute path on Windows.\n    ],\n  });\n\n  const output: Record<string, string> = {};\n  const warnings: string[] = [];\n  const errors: string[] = [];\n\n  try {\n    const renderingPromises: Promise<void>[] = [];\n\n    for (const route of allRoutes) {\n      const isAppShellRoute = appShellOptions.route === route;\n      const serverContext: ServerContext = isAppShellRoute ? 'app-shell' : 'ssg';\n\n      const render: Promise<RenderResult> = renderWorker.run({ route, serverContext });\n      const renderResult: Promise<void> = render.then(({ content, warnings, errors }) => {\n        if (content !== undefined) {\n          const outPath = isAppShellRoute\n            ? 'index.html'\n            : posix.join(\n                route.startsWith('/') ? route.slice(1) /* Remove leading slash */ : route,\n                'index.html',\n              );\n          output[outPath] = content;\n        }\n\n        if (warnings) {\n          warnings.push(...warnings);\n        }\n\n        if (errors) {\n          errors.push(...errors);\n        }\n      });\n\n      renderingPromises.push(renderResult);\n    }\n\n    await Promise.all(renderingPromises);\n  } finally {\n    void renderWorker.destroy();\n  }\n\n  return {\n    errors,\n    warnings,\n    output,\n  };\n}\n\nasync function getAllRoutes(\n  tsConfigPath: string,\n  appShellOptions: AppShellOptions,\n  prerenderOptions: PrerenderOptions,\n): Promise<Set<string>> {\n  const { routesFile, discoverRoutes, routes: existingRoutes } = prerenderOptions;\n  const routes = new Set(existingRoutes);\n\n  const { route: appShellRoute } = appShellOptions;\n  if (appShellRoute !== undefined) {\n    routes.add(appShellRoute);\n  }\n\n  if (routesFile) {\n    const routesFromFile = (await readFile(routesFile, 'utf8')).split(/\\r?\\n/);\n    for (let route of routesFromFile) {\n      route = route.trim();\n      if (route) {\n        routes.add(route);\n      }\n    }\n  }\n\n  if (discoverRoutes) {\n    const { parseAngularRoutes } = await import('guess-parser');\n    for (const { path } of parseAngularRoutes(tsConfigPath)) {\n      // Exclude dynamic routes as these cannot be pre-rendered.\n      if (!/[*:]/.test(path)) {\n        routes.add(path);\n      }\n    }\n  }\n\n  return routes;\n}\n"]}