@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
176 lines • 23.9 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
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.SassLegacyWorkerImplementation = void 0;
const path_1 = require("path");
const worker_threads_1 = require("worker_threads");
const environment_options_1 = require("../../utils/environment-options");
/**
* The maximum number of Workers that will be created to execute render requests.
*/
const MAX_RENDER_WORKERS = environment_options_1.maxWorkers;
/**
* A Sass renderer implementation that provides an interface that can be used by Webpack's
* `sass-loader`. The implementation uses a Worker thread to perform the Sass rendering
* with the `dart-sass` package. The `dart-sass` synchronous render function is used within
* the worker which can be up to two times faster than the asynchronous variant.
*/
class SassLegacyWorkerImplementation {
constructor() {
this.workers = [];
this.availableWorkers = [];
this.requests = new Map();
this.workerPath = (0, path_1.join)(__dirname, './worker-legacy.js');
this.idCounter = 1;
this.nextWorkerIndex = 0;
}
/**
* Provides information about the Sass implementation.
* This mimics enough of the `dart-sass` value to be used with the `sass-loader`.
*/
get info() {
return 'dart-sass\tworker';
}
/**
* The synchronous render function is not used by the `sass-loader`.
*/
renderSync() {
throw new Error('Sass renderSync is not supported.');
}
/**
* Asynchronously request a Sass stylesheet to be renderered.
*
* @param options The `dart-sass` options to use when rendering the stylesheet.
* @param callback The function to execute when the rendering is complete.
*/
render(options, callback) {
// The `functions`, `logger` and `importer` options are JavaScript functions that cannot be transferred.
// If any additional function options are added in the future, they must be excluded as well.
const { functions, importer, logger, ...serializableOptions } = options;
// The CLI's configuration does not use or expose the ability to defined custom Sass functions
if (functions && Object.keys(functions).length > 0) {
throw new Error('Sass custom functions are not supported.');
}
let workerIndex = this.availableWorkers.pop();
if (workerIndex === undefined) {
if (this.workers.length < MAX_RENDER_WORKERS) {
workerIndex = this.workers.length;
this.workers.push(this.createWorker());
}
else {
workerIndex = this.nextWorkerIndex++;
if (this.nextWorkerIndex >= this.workers.length) {
this.nextWorkerIndex = 0;
}
}
}
const request = this.createRequest(workerIndex, callback, importer);
this.requests.set(request.id, request);
this.workers[workerIndex].postMessage({
id: request.id,
hasImporter: !!importer,
options: serializableOptions,
});
}
/**
* Shutdown the Sass render worker.
* Executing this method will stop any pending render requests.
*/
close() {
for (const worker of this.workers) {
try {
void worker.terminate();
}
catch { }
}
this.requests.clear();
}
createWorker() {
const { port1: mainImporterPort, port2: workerImporterPort } = new worker_threads_1.MessageChannel();
const importerSignal = new Int32Array(new SharedArrayBuffer(4));
const worker = new worker_threads_1.Worker(this.workerPath, {
workerData: { workerImporterPort, importerSignal },
transferList: [workerImporterPort],
});
worker.on('message', (response) => {
const request = this.requests.get(response.id);
if (!request) {
return;
}
this.requests.delete(response.id);
this.availableWorkers.push(request.workerIndex);
if (response.result) {
// The results are expected to be Node.js `Buffer` objects but will each be transferred as
// a Uint8Array that does not have the expected `toString` behavior of a `Buffer`.
const { css, map, stats } = response.result;
const result = {
// This `Buffer.from` override will use the memory directly and avoid making a copy
css: Buffer.from(css.buffer, css.byteOffset, css.byteLength),
stats,
};
if (map) {
// This `Buffer.from` override will use the memory directly and avoid making a copy
result.map = Buffer.from(map.buffer, map.byteOffset, map.byteLength);
}
request.callback(undefined, result);
}
else {
request.callback(response.error);
}
});
mainImporterPort.on('message', ({ id, url, prev, fromImport, }) => {
const request = this.requests.get(id);
if (!request?.importers) {
mainImporterPort.postMessage(null);
Atomics.store(importerSignal, 0, 1);
Atomics.notify(importerSignal, 0);
return;
}
this.processImporters(request.importers, url, prev, fromImport)
.then((result) => {
mainImporterPort.postMessage(result);
})
.catch((error) => {
mainImporterPort.postMessage(error);
})
.finally(() => {
Atomics.store(importerSignal, 0, 1);
Atomics.notify(importerSignal, 0);
});
});
mainImporterPort.unref();
return worker;
}
async processImporters(importers, url, prev, fromImport) {
let result = null;
for (const importer of importers) {
result = await new Promise((resolve) => {
// Importers can be both sync and async
const innerResult = importer.call({ fromImport }, url, prev, resolve);
if (innerResult !== undefined) {
resolve(innerResult);
}
});
if (result) {
break;
}
}
return result;
}
createRequest(workerIndex, callback, importer) {
return {
id: this.idCounter++,
workerIndex,
callback,
importers: !importer || Array.isArray(importer) ? importer : [importer],
};
}
}
exports.SassLegacyWorkerImplementation = SassLegacyWorkerImplementation;
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"sass-service-legacy.js","sourceRoot":"","sources":["../../../../../../../../../packages/angular_devkit/build_angular/src/tools/sass/sass-service-legacy.ts"],"names":[],"mappings":";AAAA;;;;;;GAMG;;;AAEH,+BAA4B;AAU5B,mDAAwD;AACxD,yEAA6D;AAE7D;;GAEG;AACH,MAAM,kBAAkB,GAAG,gCAAU,CAAC;AA0BtC;;;;;GAKG;AACH,MAAa,8BAA8B;IAA3C;QACmB,YAAO,GAAa,EAAE,CAAC;QACvB,qBAAgB,GAAa,EAAE,CAAC;QAChC,aAAQ,GAAG,IAAI,GAAG,EAAyB,CAAC;QAC5C,eAAU,GAAG,IAAA,WAAI,EAAC,SAAS,EAAE,oBAAoB,CAAC,CAAC;QAC5D,cAAS,GAAG,CAAC,CAAC;QACd,oBAAe,GAAG,CAAC,CAAC;IA4L9B,CAAC;IA1LC;;;OAGG;IACH,IAAI,IAAI;QACN,OAAO,mBAAmB,CAAC;IAC7B,CAAC;IAED;;OAEG;IACH,UAAU;QACR,MAAM,IAAI,KAAK,CAAC,mCAAmC,CAAC,CAAC;IACvD,CAAC;IAED;;;;;OAKG;IACH,MAAM,CAAC,OAAyB,EAAE,QAAwB;QACxD,wGAAwG;QACxG,6FAA6F;QAC7F,MAAM,EAAE,SAAS,EAAE,QAAQ,EAAE,MAAM,EAAE,GAAG,mBAAmB,EAAE,GAAG,OAAO,CAAC;QAExE,8FAA8F;QAC9F,IAAI,SAAS,IAAI,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,MAAM,GAAG,CAAC,EAAE;YAClD,MAAM,IAAI,KAAK,CAAC,0CAA0C,CAAC,CAAC;SAC7D;QAED,IAAI,WAAW,GAAG,IAAI,CAAC,gBAAgB,CAAC,GAAG,EAAE,CAAC;QAC9C,IAAI,WAAW,KAAK,SAAS,EAAE;YAC7B,IAAI,IAAI,CAAC,OAAO,CAAC,MAAM,GAAG,kBAAkB,EAAE;gBAC5C,WAAW,GAAG,IAAI,CAAC,OAAO,CAAC,MAAM,CAAC;gBAClC,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,CAAC,CAAC;aACxC;iBAAM;gBACL,WAAW,GAAG,IAAI,CAAC,eAAe,EAAE,CAAC;gBACrC,IAAI,IAAI,CAAC,eAAe,IAAI,IAAI,CAAC,OAAO,CAAC,MAAM,EAAE;oBAC/C,IAAI,CAAC,eAAe,GAAG,CAAC,CAAC;iBAC1B;aACF;SACF;QAED,MAAM,OAAO,GAAG,IAAI,CAAC,aAAa,CAAC,WAAW,EAAE,QAAQ,EAAE,QAAQ,CAAC,CAAC;QACpE,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,OAAO,CAAC,EAAE,EAAE,OAAO,CAAC,CAAC;QAEvC,IAAI,CAAC,OAAO,CAAC,WAAW,CAAC,CAAC,WAAW,CAAC;YACpC,EAAE,EAAE,OAAO,CAAC,EAAE;YACd,WAAW,EAAE,CAAC,CAAC,QAAQ;YACvB,OAAO,EAAE,mBAAmB;SAC7B,CAAC,CAAC;IACL,CAAC;IAED;;;OAGG;IACH,KAAK;QACH,KAAK,MAAM,MAAM,IAAI,IAAI,CAAC,OAAO,EAAE;YACjC,IAAI;gBACF,KAAK,MAAM,CAAC,SAAS,EAAE,CAAC;aACzB;YAAC,MAAM,GAAE;SACX;QACD,IAAI,CAAC,QAAQ,CAAC,KAAK,EAAE,CAAC;IACxB,CAAC;IAEO,YAAY;QAClB,MAAM,EAAE,KAAK,EAAE,gBAAgB,EAAE,KAAK,EAAE,kBAAkB,EAAE,GAAG,IAAI,+BAAc,EAAE,CAAC;QACpF,MAAM,cAAc,GAAG,IAAI,UAAU,CAAC,IAAI,iBAAiB,CAAC,CAAC,CAAC,CAAC,CAAC;QAEhE,MAAM,MAAM,GAAG,IAAI,uBAAM,CAAC,IAAI,CAAC,UAAU,EAAE;YACzC,UAAU,EAAE,EAAE,kBAAkB,EAAE,cAAc,EAAE;YAClD,YAAY,EAAE,CAAC,kBAAkB,CAAC;SACnC,CAAC,CAAC;QAEH,MAAM,CAAC,EAAE,CAAC,SAAS,EAAE,CAAC,QAA+B,EAAE,EAAE;YACvD,MAAM,OAAO,GAAG,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,QAAQ,CAAC,EAAE,CAAC,CAAC;YAC/C,IAAI,CAAC,OAAO,EAAE;gBACZ,OAAO;aACR;YAED,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,QAAQ,CAAC,EAAE,CAAC,CAAC;YAClC,IAAI,CAAC,gBAAgB,CAAC,IAAI,CAAC,OAAO,CAAC,WAAW,CAAC,CAAC;YAEhD,IAAI,QAAQ,CAAC,MAAM,EAAE;gBACnB,0FAA0F;gBAC1F,kFAAkF;gBAClF,MAAM,EAAE,GAAG,EAAE,GAAG,EAAE,KAAK,EAAE,GAAG,QAAQ,CAAC,MAAM,CAAC;gBAC5C,MAAM,MAAM,GAAkB;oBAC5B,mFAAmF;oBACnF,GAAG,EAAE,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,MAAM,EAAE,GAAG,CAAC,UAAU,EAAE,GAAG,CAAC,UAAU,CAAC;oBAC5D,KAAK;iBACN,CAAC;gBACF,IAAI,GAAG,EAAE;oBACP,mFAAmF;oBACnF,MAAM,CAAC,GAAG,GAAG,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,MAAM,EAAE,GAAG,CAAC,UAAU,EAAE,GAAG,CAAC,UAAU,CAAC,CAAC;iBACtE;gBACD,OAAO,CAAC,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC,CAAC;aACrC;iBAAM;gBACL,OAAO,CAAC,QAAQ,CAAC,QAAQ,CAAC,KAAK,CAAC,CAAC;aAClC;QACH,CAAC,CAAC,CAAC;QAEH,gBAAgB,CAAC,EAAE,CACjB,SAAS,EACT,CAAC,EACC,EAAE,EACF,GAAG,EACH,IAAI,EACJ,UAAU,GAMX,EAAE,EAAE;YACH,MAAM,OAAO,GAAG,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,EAAE,CAAC,CAAC;YACtC,IAAI,CAAC,OAAO,EAAE,SAAS,EAAE;gBACvB,gBAAgB,CAAC,WAAW,CAAC,IAAI,CAAC,CAAC;gBACnC,OAAO,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;gBACpC,OAAO,CAAC,MAAM,CAAC,cAAc,EAAE,CAAC,CAAC,CAAC;gBAElC,OAAO;aACR;YAED,IAAI,CAAC,gBAAgB,CAAC,OAAO,CAAC,SAAS,EAAE,GAAG,EAAE,IAAI,EAAE,UAAU,CAAC;iBAC5D,IAAI,CAAC,CAAC,MAAM,EAAE,EAAE;gBACf,gBAAgB,CAAC,WAAW,CAAC,MAAM,CAAC,CAAC;YACvC,CAAC,CAAC;iBACD,KAAK,CAAC,CAAC,KAAK,EAAE,EAAE;gBACf,gBAAgB,CAAC,WAAW,CAAC,KAAK,CAAC,CAAC;YACtC,CAAC,CAAC;iBACD,OAAO,CAAC,GAAG,EAAE;gBACZ,OAAO,CAAC,KAAK,CAAC,cAAc,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;gBACpC,OAAO,CAAC,MAAM,CAAC,cAAc,EAAE,CAAC,CAAC,CAAC;YACpC,CAAC,CAAC,CAAC;QACP,CAAC,CACF,CAAC;QAEF,gBAAgB,CAAC,KAAK,EAAE,CAAC;QAEzB,OAAO,MAAM,CAAC;IAChB,CAAC;IAEO,KAAK,CAAC,gBAAgB,CAC5B,SAAiD,EACjD,GAAW,EACX,IAAY,EACZ,UAAmB;QAEnB,IAAI,MAAM,GAAG,IAAI,CAAC;QAClB,KAAK,MAAM,QAAQ,IAAI,SAAS,EAAE;YAChC,MAAM,GAAG,MAAM,IAAI,OAAO,CAAiB,CAAC,OAAO,EAAE,EAAE;gBACrD,uCAAuC;gBACvC,MAAM,WAAW,GAAI,QAA0B,CAAC,IAAI,CAClD,EAAE,UAAU,EAAkB,EAC9B,GAAG,EACH,IAAI,EACJ,OAAO,CACR,CAAC;gBACF,IAAI,WAAW,KAAK,SAAS,EAAE;oBAC7B,OAAO,CAAC,WAAW,CAAC,CAAC;iBACtB;YACH,CAAC,CAAC,CAAC;YAEH,IAAI,MAAM,EAAE;gBACV,MAAM;aACP;SACF;QAED,OAAO,MAAM,CAAC;IAChB,CAAC;IAEO,aAAa,CACnB,WAAmB,EACnB,QAAwB,EACxB,QAAqF;QAErF,OAAO;YACL,EAAE,EAAE,IAAI,CAAC,SAAS,EAAE;YACpB,WAAW;YACX,QAAQ;YACR,SAAS,EAAE,CAAC,QAAQ,IAAI,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC;SACxE,CAAC;IACJ,CAAC;CACF;AAlMD,wEAkMC","sourcesContent":["/**\n * @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 { join } from 'path';\nimport {\n  LegacyAsyncImporter as AsyncImporter,\n  LegacyResult as CompileResult,\n  LegacyException as Exception,\n  LegacyImporterResult as ImporterResult,\n  LegacyImporterThis as ImporterThis,\n  LegacyOptions as Options,\n  LegacySyncImporter as SyncImporter,\n} from 'sass';\nimport { MessageChannel, Worker } from 'worker_threads';\nimport { maxWorkers } from '../../utils/environment-options';\n\n/**\n * The maximum number of Workers that will be created to execute render requests.\n */\nconst MAX_RENDER_WORKERS = maxWorkers;\n\n/**\n * The callback type for the `dart-sass` asynchronous render function.\n */\ntype RenderCallback = (error?: Exception, result?: CompileResult) => void;\n\n/**\n * An object containing the contextual information for a specific render request.\n */\ninterface RenderRequest {\n  id: number;\n  workerIndex: number;\n  callback: RenderCallback;\n  importers?: (SyncImporter | AsyncImporter)[];\n}\n\n/**\n * A response from the Sass render Worker containing the result of the operation.\n */\ninterface RenderResponseMessage {\n  id: number;\n  error?: Exception;\n  result?: CompileResult;\n}\n\n/**\n * A Sass renderer implementation that provides an interface that can be used by Webpack's\n * `sass-loader`. The implementation uses a Worker thread to perform the Sass rendering\n * with the `dart-sass` package.  The `dart-sass` synchronous render function is used within\n * the worker which can be up to two times faster than the asynchronous variant.\n */\nexport class SassLegacyWorkerImplementation {\n  private readonly workers: Worker[] = [];\n  private readonly availableWorkers: number[] = [];\n  private readonly requests = new Map<number, RenderRequest>();\n  private readonly workerPath = join(__dirname, './worker-legacy.js');\n  private idCounter = 1;\n  private nextWorkerIndex = 0;\n\n  /**\n   * Provides information about the Sass implementation.\n   * This mimics enough of the `dart-sass` value to be used with the `sass-loader`.\n   */\n  get info(): string {\n    return 'dart-sass\\tworker';\n  }\n\n  /**\n   * The synchronous render function is not used by the `sass-loader`.\n   */\n  renderSync(): never {\n    throw new Error('Sass renderSync is not supported.');\n  }\n\n  /**\n   * Asynchronously request a Sass stylesheet to be renderered.\n   *\n   * @param options The `dart-sass` options to use when rendering the stylesheet.\n   * @param callback The function to execute when the rendering is complete.\n   */\n  render(options: Options<'async'>, callback: RenderCallback): void {\n    // The `functions`, `logger` and `importer` options are JavaScript functions that cannot be transferred.\n    // If any additional function options are added in the future, they must be excluded as well.\n    const { functions, importer, logger, ...serializableOptions } = options;\n\n    // The CLI's configuration does not use or expose the ability to defined custom Sass functions\n    if (functions && Object.keys(functions).length > 0) {\n      throw new Error('Sass custom functions are not supported.');\n    }\n\n    let workerIndex = this.availableWorkers.pop();\n    if (workerIndex === undefined) {\n      if (this.workers.length < MAX_RENDER_WORKERS) {\n        workerIndex = this.workers.length;\n        this.workers.push(this.createWorker());\n      } else {\n        workerIndex = this.nextWorkerIndex++;\n        if (this.nextWorkerIndex >= this.workers.length) {\n          this.nextWorkerIndex = 0;\n        }\n      }\n    }\n\n    const request = this.createRequest(workerIndex, callback, importer);\n    this.requests.set(request.id, request);\n\n    this.workers[workerIndex].postMessage({\n      id: request.id,\n      hasImporter: !!importer,\n      options: serializableOptions,\n    });\n  }\n\n  /**\n   * Shutdown the Sass render worker.\n   * Executing this method will stop any pending render requests.\n   */\n  close(): void {\n    for (const worker of this.workers) {\n      try {\n        void worker.terminate();\n      } catch {}\n    }\n    this.requests.clear();\n  }\n\n  private createWorker(): Worker {\n    const { port1: mainImporterPort, port2: workerImporterPort } = new MessageChannel();\n    const importerSignal = new Int32Array(new SharedArrayBuffer(4));\n\n    const worker = new Worker(this.workerPath, {\n      workerData: { workerImporterPort, importerSignal },\n      transferList: [workerImporterPort],\n    });\n\n    worker.on('message', (response: RenderResponseMessage) => {\n      const request = this.requests.get(response.id);\n      if (!request) {\n        return;\n      }\n\n      this.requests.delete(response.id);\n      this.availableWorkers.push(request.workerIndex);\n\n      if (response.result) {\n        // The results are expected to be Node.js `Buffer` objects but will each be transferred as\n        // a Uint8Array that does not have the expected `toString` behavior of a `Buffer`.\n        const { css, map, stats } = response.result;\n        const result: CompileResult = {\n          // This `Buffer.from` override will use the memory directly and avoid making a copy\n          css: Buffer.from(css.buffer, css.byteOffset, css.byteLength),\n          stats,\n        };\n        if (map) {\n          // This `Buffer.from` override will use the memory directly and avoid making a copy\n          result.map = Buffer.from(map.buffer, map.byteOffset, map.byteLength);\n        }\n        request.callback(undefined, result);\n      } else {\n        request.callback(response.error);\n      }\n    });\n\n    mainImporterPort.on(\n      'message',\n      ({\n        id,\n        url,\n        prev,\n        fromImport,\n      }: {\n        id: number;\n        url: string;\n        prev: string;\n        fromImport: boolean;\n      }) => {\n        const request = this.requests.get(id);\n        if (!request?.importers) {\n          mainImporterPort.postMessage(null);\n          Atomics.store(importerSignal, 0, 1);\n          Atomics.notify(importerSignal, 0);\n\n          return;\n        }\n\n        this.processImporters(request.importers, url, prev, fromImport)\n          .then((result) => {\n            mainImporterPort.postMessage(result);\n          })\n          .catch((error) => {\n            mainImporterPort.postMessage(error);\n          })\n          .finally(() => {\n            Atomics.store(importerSignal, 0, 1);\n            Atomics.notify(importerSignal, 0);\n          });\n      },\n    );\n\n    mainImporterPort.unref();\n\n    return worker;\n  }\n\n  private async processImporters(\n    importers: Iterable<SyncImporter | AsyncImporter>,\n    url: string,\n    prev: string,\n    fromImport: boolean,\n  ): Promise<ImporterResult> {\n    let result = null;\n    for (const importer of importers) {\n      result = await new Promise<ImporterResult>((resolve) => {\n        // Importers can be both sync and async\n        const innerResult = (importer as AsyncImporter).call(\n          { fromImport } as ImporterThis,\n          url,\n          prev,\n          resolve,\n        );\n        if (innerResult !== undefined) {\n          resolve(innerResult);\n        }\n      });\n\n      if (result) {\n        break;\n      }\n    }\n\n    return result;\n  }\n\n  private createRequest(\n    workerIndex: number,\n    callback: RenderCallback,\n    importer: SyncImporter | AsyncImporter | (SyncImporter | AsyncImporter)[] | undefined,\n  ): RenderRequest {\n    return {\n      id: this.idCounter++,\n      workerIndex,\n      callback,\n      importers: !importer || Array.isArray(importer) ? importer : [importer],\n    };\n  }\n}\n"]}