@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
231 lines • 33 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.StylesheetPluginFactory = void 0;
const fast_glob_1 = __importDefault(require("fast-glob"));
const node_assert_1 = __importDefault(require("node:assert"));
const promises_1 = require("node:fs/promises");
const node_path_1 = require("node:path");
const load_result_cache_1 = require("../load-result-cache");
/**
* The lazy-loaded instance of the postcss stylesheet postprocessor.
* It is only imported and initialized if postcss is needed.
*/
let postcss;
/**
* An array of keywords that indicate Tailwind CSS processing is required for a stylesheet.
*
* Based on https://tailwindcss.com/docs/functions-and-directives
*/
const TAILWIND_KEYWORDS = ['@tailwind', '@layer', '@apply', '@config', 'theme(', 'screen('];
class StylesheetPluginFactory {
constructor(options, cache) {
this.options = options;
this.cache = cache;
}
create(language) {
// Return a noop plugin if no load actions are required
if (!language.process && !this.options.tailwindConfiguration) {
return {
name: 'angular-' + language.name,
setup() { },
};
}
const { cache, options } = this;
const setupPostcss = async () => {
// Return already created processor if present
if (this.postcssProcessor) {
return this.postcssProcessor;
}
if (options.tailwindConfiguration) {
postcss ?? (postcss = (await Promise.resolve().then(() => __importStar(require('postcss')))).default);
const tailwind = await Promise.resolve(`${options.tailwindConfiguration.package}`).then(s => __importStar(require(s)));
this.postcssProcessor = postcss().use(tailwind.default({ config: options.tailwindConfiguration.file }));
}
return this.postcssProcessor;
};
return {
name: 'angular-' + language.name,
async setup(build) {
// Setup postcss if needed
const postcssProcessor = await setupPostcss();
// Add a load callback to support inline Component styles
build.onLoad({ filter: language.componentFilter, namespace: 'angular:styles/component' }, (0, load_result_cache_1.createCachedLoad)(cache, (args) => {
const data = options.inlineComponentData?.[args.path];
(0, node_assert_1.default)(typeof data === 'string', `component style name should always be found [${args.path}]`);
const [format, , filename] = args.path.split(';', 3);
// Only use postcss if Tailwind processing is required.
// NOTE: If postcss is used for more than just Tailwind in the future this check MUST
// be updated to account for the additional use.
// TODO: use better search algorithm for keywords
const needsPostcss = !!postcssProcessor && TAILWIND_KEYWORDS.some((keyword) => data.includes(keyword));
return processStylesheet(language, data, filename, format, options, build, needsPostcss ? postcssProcessor : undefined);
}));
// Add a load callback to support files from disk
build.onLoad({ filter: language.fileFilter }, (0, load_result_cache_1.createCachedLoad)(cache, async (args) => {
const data = await (0, promises_1.readFile)(args.path, 'utf-8');
const needsPostcss = !!postcssProcessor && TAILWIND_KEYWORDS.some((keyword) => data.includes(keyword));
return processStylesheet(language, data, args.path, (0, node_path_1.extname)(args.path).toLowerCase().slice(1), options, build, needsPostcss ? postcssProcessor : undefined);
}));
},
};
}
}
exports.StylesheetPluginFactory = StylesheetPluginFactory;
async function processStylesheet(language, data, filename, format, options, build, postcssProcessor) {
let result;
// Process the input data if the language requires preprocessing
if (language.process) {
result = await language.process(data, filename, format, options, build);
}
else {
result = {
contents: data,
loader: 'css',
watchFiles: [filename],
};
}
// Transform with postcss if needed and there are no errors
if (postcssProcessor && result.contents && !result.errors?.length) {
const postcssResult = await compileString(typeof result.contents === 'string'
? result.contents
: Buffer.from(result.contents).toString('utf-8'), filename, postcssProcessor, options);
// Merge results
if (postcssResult.errors?.length) {
delete result.contents;
}
if (result.warnings && postcssResult.warnings) {
postcssResult.warnings.unshift(...result.warnings);
}
if (result.watchFiles && postcssResult.watchFiles) {
postcssResult.watchFiles.unshift(...result.watchFiles);
}
if (result.watchDirs && postcssResult.watchDirs) {
postcssResult.watchDirs.unshift(...result.watchDirs);
}
result = {
...result,
...postcssResult,
};
}
return result;
}
/**
* Compiles the provided CSS stylesheet data using a provided postcss processor and provides an
* esbuild load result that can be used directly by an esbuild Plugin.
* @param data The stylesheet content to process.
* @param filename The name of the file that contains the data.
* @param postcssProcessor A postcss processor instance to use.
* @param options The plugin options to control the processing.
* @returns An esbuild OnLoaderResult object with the processed content, warnings, and/or errors.
*/
async function compileString(data, filename, postcssProcessor, options) {
try {
const postcssResult = await postcssProcessor.process(data, {
from: filename,
to: filename,
map: options.sourcemap && {
inline: true,
sourcesContent: true,
},
});
const loadResult = {
contents: postcssResult.css,
loader: 'css',
};
const rawWarnings = postcssResult.warnings();
if (rawWarnings.length > 0) {
const lineMappings = new Map();
loadResult.warnings = rawWarnings.map((warning) => {
const file = warning.node.source?.input.file;
if (file === undefined) {
return { text: warning.text };
}
let lines = lineMappings.get(file);
if (lines === undefined) {
lines = warning.node.source?.input.css.split(/\r?\n/);
lineMappings.set(file, lines ?? null);
}
return {
text: warning.text,
location: {
file,
line: warning.line,
column: warning.column - 1,
lineText: lines?.[warning.line - 1],
},
};
});
}
for (const resultMessage of postcssResult.messages) {
if (resultMessage.type === 'dependency' && typeof resultMessage['file'] === 'string') {
loadResult.watchFiles ?? (loadResult.watchFiles = []);
loadResult.watchFiles.push(resultMessage['file']);
}
else if (resultMessage.type === 'dir-dependency' &&
typeof resultMessage['dir'] === 'string' &&
typeof resultMessage['glob'] === 'string') {
loadResult.watchFiles ?? (loadResult.watchFiles = []);
const dependencies = await (0, fast_glob_1.default)(resultMessage['glob'], {
absolute: true,
cwd: resultMessage['dir'],
});
loadResult.watchFiles.push(...dependencies);
}
}
return loadResult;
}
catch (error) {
postcss ?? (postcss = (await Promise.resolve().then(() => __importStar(require('postcss')))).default);
if (error instanceof postcss.CssSyntaxError) {
const lines = error.source?.split(/\r?\n/);
return {
errors: [
{
text: error.reason,
location: {
file: error.file,
line: error.line,
column: error.column && error.column - 1,
lineText: error.line === undefined ? undefined : lines?.[error.line - 1],
},
},
],
};
}
throw error;
}
}
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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 type { OnLoadResult, Plugin, PluginBuild } from 'esbuild';\nimport glob from 'fast-glob';\nimport assert from 'node:assert';\nimport { readFile } from 'node:fs/promises';\nimport { extname } from 'node:path';\nimport { LoadResultCache, createCachedLoad } from '../load-result-cache';\n\n/**\n * The lazy-loaded instance of the postcss stylesheet postprocessor.\n * It is only imported and initialized if postcss is needed.\n */\nlet postcss: typeof import('postcss')['default'] | undefined;\n\n/**\n * An object containing the plugin options to use when processing stylesheets.\n */\nexport interface StylesheetPluginOptions {\n  /**\n   * Controls the use and creation of sourcemaps when processing the stylesheets.\n   * If true, sourcemap processing is enabled; if false, disabled.\n   */\n  sourcemap: boolean;\n\n  /**\n   * An optional array of paths that will be searched for stylesheets if the default\n   * resolution process for the stylesheet language does not succeed.\n   */\n  includePaths?: string[];\n\n  /**\n   * Optional component data for any inline styles from Component decorator `styles` fields.\n   * The key is an internal angular resource URI and the value is the stylesheet content.\n   */\n  inlineComponentData?: Record<string, string>;\n\n  /**\n   * Optional information used to load and configure Tailwind CSS. If present, the postcss\n   * will be added to the stylesheet processing with the Tailwind plugin setup as provided\n   * by the configuration file.\n   */\n  tailwindConfiguration?: { file: string; package: string };\n}\n\n/**\n * An array of keywords that indicate Tailwind CSS processing is required for a stylesheet.\n *\n * Based on https://tailwindcss.com/docs/functions-and-directives\n */\nconst TAILWIND_KEYWORDS = ['@tailwind', '@layer', '@apply', '@config', 'theme(', 'screen('];\n\nexport interface StylesheetLanguage {\n  name: string;\n  componentFilter: RegExp;\n  fileFilter: RegExp;\n  process?(\n    data: string,\n    file: string,\n    format: string,\n    options: StylesheetPluginOptions,\n    build: PluginBuild,\n  ): OnLoadResult | Promise<OnLoadResult>;\n}\n\nexport class StylesheetPluginFactory {\n  private postcssProcessor?: import('postcss').Processor;\n\n  constructor(\n    private readonly options: StylesheetPluginOptions,\n    private readonly cache?: LoadResultCache,\n  ) {}\n\n  create(language: Readonly<StylesheetLanguage>): Plugin {\n    // Return a noop plugin if no load actions are required\n    if (!language.process && !this.options.tailwindConfiguration) {\n      return {\n        name: 'angular-' + language.name,\n        setup() {},\n      };\n    }\n\n    const { cache, options } = this;\n    const setupPostcss = async () => {\n      // Return already created processor if present\n      if (this.postcssProcessor) {\n        return this.postcssProcessor;\n      }\n\n      if (options.tailwindConfiguration) {\n        postcss ??= (await import('postcss')).default;\n        const tailwind = await import(options.tailwindConfiguration.package);\n        this.postcssProcessor = postcss().use(\n          tailwind.default({ config: options.tailwindConfiguration.file }),\n        );\n      }\n\n      return this.postcssProcessor;\n    };\n\n    return {\n      name: 'angular-' + language.name,\n      async setup(build) {\n        // Setup postcss if needed\n        const postcssProcessor = await setupPostcss();\n\n        // Add a load callback to support inline Component styles\n        build.onLoad(\n          { filter: language.componentFilter, namespace: 'angular:styles/component' },\n          createCachedLoad(cache, (args) => {\n            const data = options.inlineComponentData?.[args.path];\n            assert(\n              typeof data === 'string',\n              `component style name should always be found [${args.path}]`,\n            );\n\n            const [format, , filename] = args.path.split(';', 3);\n            // Only use postcss if Tailwind processing is required.\n            // NOTE: If postcss is used for more than just Tailwind in the future this check MUST\n            // be updated to account for the additional use.\n            // TODO: use better search algorithm for keywords\n            const needsPostcss =\n              !!postcssProcessor && TAILWIND_KEYWORDS.some((keyword) => data.includes(keyword));\n\n            return processStylesheet(\n              language,\n              data,\n              filename,\n              format,\n              options,\n              build,\n              needsPostcss ? postcssProcessor : undefined,\n            );\n          }),\n        );\n\n        // Add a load callback to support files from disk\n        build.onLoad(\n          { filter: language.fileFilter },\n          createCachedLoad(cache, async (args) => {\n            const data = await readFile(args.path, 'utf-8');\n            const needsPostcss =\n              !!postcssProcessor && TAILWIND_KEYWORDS.some((keyword) => data.includes(keyword));\n\n            return processStylesheet(\n              language,\n              data,\n              args.path,\n              extname(args.path).toLowerCase().slice(1),\n              options,\n              build,\n              needsPostcss ? postcssProcessor : undefined,\n            );\n          }),\n        );\n      },\n    };\n  }\n}\n\nasync function processStylesheet(\n  language: Readonly<StylesheetLanguage>,\n  data: string,\n  filename: string,\n  format: string,\n  options: StylesheetPluginOptions,\n  build: PluginBuild,\n  postcssProcessor: import('postcss').Processor | undefined,\n) {\n  let result: OnLoadResult;\n\n  // Process the input data if the language requires preprocessing\n  if (language.process) {\n    result = await language.process(data, filename, format, options, build);\n  } else {\n    result = {\n      contents: data,\n      loader: 'css',\n      watchFiles: [filename],\n    };\n  }\n\n  // Transform with postcss if needed and there are no errors\n  if (postcssProcessor && result.contents && !result.errors?.length) {\n    const postcssResult = await compileString(\n      typeof result.contents === 'string'\n        ? result.contents\n        : Buffer.from(result.contents).toString('utf-8'),\n      filename,\n      postcssProcessor,\n      options,\n    );\n\n    // Merge results\n    if (postcssResult.errors?.length) {\n      delete result.contents;\n    }\n    if (result.warnings && postcssResult.warnings) {\n      postcssResult.warnings.unshift(...result.warnings);\n    }\n    if (result.watchFiles && postcssResult.watchFiles) {\n      postcssResult.watchFiles.unshift(...result.watchFiles);\n    }\n    if (result.watchDirs && postcssResult.watchDirs) {\n      postcssResult.watchDirs.unshift(...result.watchDirs);\n    }\n    result = {\n      ...result,\n      ...postcssResult,\n    };\n  }\n\n  return result;\n}\n\n/**\n * Compiles the provided CSS stylesheet data using a provided postcss processor and provides an\n * esbuild load result that can be used directly by an esbuild Plugin.\n * @param data The stylesheet content to process.\n * @param filename The name of the file that contains the data.\n * @param postcssProcessor A postcss processor instance to use.\n * @param options The plugin options to control the processing.\n * @returns An esbuild OnLoaderResult object with the processed content, warnings, and/or errors.\n */\nasync function compileString(\n  data: string,\n  filename: string,\n  postcssProcessor: import('postcss').Processor,\n  options: StylesheetPluginOptions,\n): Promise<OnLoadResult> {\n  try {\n    const postcssResult = await postcssProcessor.process(data, {\n      from: filename,\n      to: filename,\n      map: options.sourcemap && {\n        inline: true,\n        sourcesContent: true,\n      },\n    });\n\n    const loadResult: OnLoadResult = {\n      contents: postcssResult.css,\n      loader: 'css',\n    };\n\n    const rawWarnings = postcssResult.warnings();\n    if (rawWarnings.length > 0) {\n      const lineMappings = new Map<string, string[] | null>();\n      loadResult.warnings = rawWarnings.map((warning) => {\n        const file = warning.node.source?.input.file;\n        if (file === undefined) {\n          return { text: warning.text };\n        }\n\n        let lines = lineMappings.get(file);\n        if (lines === undefined) {\n          lines = warning.node.source?.input.css.split(/\\r?\\n/);\n          lineMappings.set(file, lines ?? null);\n        }\n\n        return {\n          text: warning.text,\n          location: {\n            file,\n            line: warning.line,\n            column: warning.column - 1,\n            lineText: lines?.[warning.line - 1],\n          },\n        };\n      });\n    }\n\n    for (const resultMessage of postcssResult.messages) {\n      if (resultMessage.type === 'dependency' && typeof resultMessage['file'] === 'string') {\n        loadResult.watchFiles ??= [];\n        loadResult.watchFiles.push(resultMessage['file']);\n      } else if (\n        resultMessage.type === 'dir-dependency' &&\n        typeof resultMessage['dir'] === 'string' &&\n        typeof resultMessage['glob'] === 'string'\n      ) {\n        loadResult.watchFiles ??= [];\n        const dependencies = await glob(resultMessage['glob'], {\n          absolute: true,\n          cwd: resultMessage['dir'],\n        });\n        loadResult.watchFiles.push(...dependencies);\n      }\n    }\n\n    return loadResult;\n  } catch (error) {\n    postcss ??= (await import('postcss')).default;\n    if (error instanceof postcss.CssSyntaxError) {\n      const lines = error.source?.split(/\\r?\\n/);\n\n      return {\n        errors: [\n          {\n            text: error.reason,\n            location: {\n              file: error.file,\n              line: error.line,\n              column: error.column && error.column - 1,\n              lineText: error.line === undefined ? undefined : lines?.[error.line - 1],\n            },\n          },\n        ],\n      };\n    }\n\n    throw error;\n  }\n}\n"]}