ng-packagr
Version:
Compile and package Angular libraries in Angular Package Format (APF)
113 lines • 5.17 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.StylesheetProcessor = exports.CssUrl = void 0;
const browserslist_1 = __importDefault(require("browserslist"));
const fs_1 = require("fs");
const path_1 = require("path");
const piscina_1 = __importDefault(require("piscina"));
const color_1 = require("../utils/color");
const postcss_configuration_1 = require("./postcss-configuration");
const maxWorkersVariable = process.env['NG_BUILD_MAX_WORKERS'];
const maxThreads = typeof maxWorkersVariable === 'string' && maxWorkersVariable !== '' ? +maxWorkersVariable : 4;
var CssUrl;
(function (CssUrl) {
CssUrl["inline"] = "inline";
CssUrl["none"] = "none";
})(CssUrl || (exports.CssUrl = CssUrl = {}));
class StylesheetProcessor {
constructor(projectBasePath, basePath, cssUrl, includePaths, cacheDirectory) {
this.projectBasePath = projectBasePath;
this.basePath = basePath;
this.cssUrl = cssUrl;
this.includePaths = includePaths;
this.cacheDirectory = cacheDirectory;
// By default, browserslist defaults are too inclusive
// https://github.com/browserslist/browserslist/blob/83764ea81ffaa39111c204b02c371afa44a4ff07/index.js#L516-L522
// We change the default query to browsers that Angular support.
// https://angular.io/guide/browser-support
browserslist_1.default.defaults = [
'last 2 Chrome versions',
'last 1 Firefox version',
'last 2 Edge major versions',
'last 2 Safari major versions',
'last 2 iOS major versions',
'Firefox ESR',
];
}
async process({ filePath, content }) {
this.createRenderWorker();
return this.renderWorker.run({ content, filePath });
}
/** Destory workers in pool. */
destroy() {
var _a;
void ((_a = this.renderWorker) === null || _a === void 0 ? void 0 : _a.destroy());
}
createRenderWorker() {
// Do not use async FS calls in here as otherwise a race will be created which causes multiple FS calls to be done.
if (this.renderWorker) {
return;
}
const styleIncludePaths = [...this.includePaths];
let prevDir = null;
let currentDir = this.basePath;
while (currentDir !== prevDir) {
const p = (0, path_1.join)(currentDir, 'node_modules');
if ((0, fs_1.existsSync)(p)) {
styleIncludePaths.push(p);
}
prevDir = currentDir;
currentDir = (0, path_1.dirname)(prevDir);
}
const browserslistData = (0, browserslist_1.default)(undefined, { path: this.basePath });
const searchDirs = (0, postcss_configuration_1.generateSearchDirectories)([this.projectBasePath]);
this.renderWorker = new piscina_1.default({
filename: require.resolve('./stylesheet-processor-worker'),
maxThreads,
recordTiming: false,
env: {
...process.env,
FORCE_COLOR: '' + color_1.colors.enabled,
},
workerData: {
postcssConfiguration: (0, postcss_configuration_1.loadPostcssConfiguration)(searchDirs),
tailwindConfigPath: (0, postcss_configuration_1.findTailwindConfiguration)(searchDirs),
projectBasePath: this.projectBasePath,
browserslistData,
targets: transformSupportedBrowsersToTargets(browserslistData),
cacheDirectory: this.cacheDirectory,
cssUrl: this.cssUrl,
styleIncludePaths,
},
});
}
}
exports.StylesheetProcessor = StylesheetProcessor;
function transformSupportedBrowsersToTargets(supportedBrowsers) {
const transformed = [];
// https://esbuild.github.io/api/#target
const esBuildSupportedBrowsers = new Set(['safari', 'firefox', 'edge', 'chrome', 'ios']);
for (const browser of supportedBrowsers) {
let [browserName, version] = browser.split(' ');
// browserslist uses the name `ios_saf` for iOS Safari whereas esbuild uses `ios`
if (browserName === 'ios_saf') {
browserName = 'ios';
}
// browserslist uses ranges `15.2-15.3` versions but only the lowest is required
// to perform minimum supported feature checks. esbuild also expects a single version.
[version] = version.split('-');
if (esBuildSupportedBrowsers.has(browserName)) {
if (browserName === 'safari' && version === 'tp') {
// esbuild only supports numeric versions so `TP` is converted to a high number (999) since
// a Technology Preview (TP) of Safari is assumed to support all currently known features.
version = '999';
}
transformed.push(browserName + version);
}
}
return transformed.length ? transformed : undefined;
}
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