@angular-devkit/build-angular
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Angular Webpack Build Facade
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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.dev/license
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getAvailablePort = getAvailablePort;
exports.spawnAsObservable = spawnAsObservable;
exports.waitUntilServerIsListening = waitUntilServerIsListening;
const node_child_process_1 = require("node:child_process");
const node_net_1 = require("node:net");
const rxjs_1 = require("rxjs");
const tree_kill_1 = __importDefault(require("tree-kill"));
function getAvailablePort() {
return new Promise((resolve, reject) => {
const server = (0, node_net_1.createServer)();
server
.unref()
.on('error', reject)
.listen(0, () => {
const { port } = server.address();
server.close(() => resolve(port));
});
});
}
function spawnAsObservable(command, args = [], options = {}) {
return new rxjs_1.Observable((obs) => {
const proc = (0, node_child_process_1.spawn)(command, args, options);
if (proc.stdout) {
proc.stdout.on('data', (data) => obs.next({ stdout: data.toString() }));
}
if (proc.stderr) {
proc.stderr.on('data', (data) => obs.next({ stderr: data.toString() }));
}
proc
.on('error', (err) => obs.error(err))
.on('close', (code) => {
if (code !== 0) {
obs.error(new Error(`${command} exited with ${code} code.`));
}
obs.complete();
});
return () => {
if (!proc.killed && proc.pid) {
(0, tree_kill_1.default)(proc.pid, 'SIGTERM');
}
};
});
}
function waitUntilServerIsListening(port, host) {
const allowedErrorCodes = ['ECONNREFUSED', 'ECONNRESET'];
return new rxjs_1.Observable((obs) => {
const client = (0, node_net_1.createConnection)({ host, port }, () => {
obs.next(undefined);
obs.complete();
}).on('error', (err) => obs.error(err));
return () => {
if (!client.destroyed) {
client.destroy();
}
};
}).pipe((0, rxjs_1.retryWhen)((err) => err.pipe((0, rxjs_1.mergeMap)((error, attempts) => {
return attempts > 10 || !allowedErrorCodes.includes(error.code)
? (0, rxjs_1.throwError)(error)
: (0, rxjs_1.timer)(100 * (attempts * 1));
}))));
}