1 | "use strict";
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2 | /**
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3 | * @license
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4 | * Copyright Google LLC All Rights Reserved.
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5 | *
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6 | * Use of this source code is governed by an MIT-style license that can be
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7 | * found in the LICENSE file at https://angular.io/license
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8 | */
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9 | Object.defineProperty(exports, "__esModule", { value: true });
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10 | exports.runModuleAsObservableFork = void 0;
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11 | const child_process_1 = require("child_process");
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12 | const path_1 = require("path");
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13 | const rxjs_1 = require("rxjs");
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14 | const treeKill = require('tree-kill');
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15 | function runModuleAsObservableFork(cwd, modulePath, exportName,
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16 | // eslint-disable-next-line @typescript-eslint/no-explicit-any
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17 | args) {
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18 | return new rxjs_1.Observable((obs) => {
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19 | const workerPath = path_1.resolve(__dirname, './run-module-worker.js');
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20 | const debugArgRegex = /--inspect(?:-brk|-port)?|--debug(?:-brk|-port)/;
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21 | const execArgv = process.execArgv.filter((arg) => {
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22 | // Remove debug args.
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23 | // Workaround for https://github.com/nodejs/node/issues/9435
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24 | return !debugArgRegex.test(arg);
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25 | });
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26 | const forkOptions = {
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27 | cwd,
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28 | execArgv,
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29 | };
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30 | // TODO: support passing in a logger to use as stdio streams
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31 | // if (logger) {
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32 | // (forkOptions as any).stdio = [
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33 | // 'ignore',
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34 | // logger.info, // make it a stream
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35 | // logger.error, // make it a stream
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36 | // ];
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37 | // }
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38 | const forkedProcess = child_process_1.fork(workerPath, undefined, forkOptions);
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39 | // Cleanup.
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40 | const killForkedProcess = () => {
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41 | if (forkedProcess && forkedProcess.pid) {
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42 | treeKill(forkedProcess.pid, 'SIGTERM');
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43 | }
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44 | };
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45 | // Handle child process exit.
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46 | const handleChildProcessExit = (code) => {
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47 | killForkedProcess();
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48 | if (code && code !== 0) {
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49 | obs.error();
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50 | }
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51 | obs.next({ success: true });
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52 | obs.complete();
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53 | };
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54 | forkedProcess.once('exit', handleChildProcessExit);
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55 | forkedProcess.once('SIGINT', handleChildProcessExit);
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56 | forkedProcess.once('uncaughtException', handleChildProcessExit);
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57 | // Handle parent process exit.
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58 | const handleParentProcessExit = () => {
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59 | killForkedProcess();
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60 | };
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61 | process.once('exit', handleParentProcessExit);
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62 | process.once('SIGINT', handleParentProcessExit);
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63 | process.once('uncaughtException', handleParentProcessExit);
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64 | // Run module.
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65 | forkedProcess.send({
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66 | hash: '5d4b9a5c0a4e0f9977598437b0e85bcc',
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67 | modulePath,
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68 | exportName,
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69 | args,
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70 | });
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71 | // Teardown logic. When unsubscribing, kill the forked process.
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72 | return killForkedProcess;
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73 | });
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74 | }
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75 | exports.runModuleAsObservableFork = runModuleAsObservableFork;
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