84 lines
2.1 KiB
TypeScript
84 lines
2.1 KiB
TypeScript
import { writeFileSync } from 'fs';
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if (process.env.NX_TERMINAL_OUTPUT_PATH) {
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setUpOutputWatching(
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process.env.NX_TERMINAL_CAPTURE_STDERR === 'true',
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process.env.NX_FORWARD_OUTPUT === 'true'
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);
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}
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if (!process.env.NX_WORKSPACE_ROOT) {
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console.error('Invalid Nx command invocation');
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process.exit(1);
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}
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requireCli();
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function requireCli() {
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process.env.NX_CLI_SET = 'true';
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try {
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const cli = require.resolve('@nrwl/tao/index.js', {
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paths: [process.env.NX_WORKSPACE_ROOT],
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});
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require(cli);
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} catch (e) {
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console.error(`Could not find @nrwl/tao module in this workspace.`, e);
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process.exit(1);
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}
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}
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/**
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* We need to collect all stdout and stderr and store it, so the caching mechanism
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* could store it.
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*
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* Writing stdout and stderr into different stream is too risky when using TTY.
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*
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* So we are simply monkey-patching the Javascript object. In this case the actual output will always be correct.
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* And the cached output should be correct unless the CLI bypasses process.stdout or console.log and uses some
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* C-binary to write to stdout.
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*/
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function setUpOutputWatching(captureStderr: boolean, forwardOutput: boolean) {
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const stdoutWrite = process.stdout._write;
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const stderrWrite = process.stderr._write;
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let out = [];
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let outWithErr = [];
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process.stdout._write = (
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chunk: any,
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encoding: string,
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callback: Function
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) => {
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out.push(chunk.toString());
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outWithErr.push(chunk.toString());
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if (forwardOutput) {
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stdoutWrite.apply(process.stdout, [chunk, encoding, callback]);
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} else {
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callback();
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}
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};
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process.stderr._write = (
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chunk: any,
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encoding: string,
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callback: Function
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) => {
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outWithErr.push(chunk.toString());
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if (forwardOutput) {
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stderrWrite.apply(process.stderr, [chunk, encoding, callback]);
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} else {
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callback();
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}
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};
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process.on('exit', (code) => {
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if (code === 0) {
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writeFileSync(
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process.env.NX_TERMINAL_OUTPUT_PATH,
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captureStderr ? outWithErr.join('') : out.join('')
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);
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} else {
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writeFileSync(process.env.NX_TERMINAL_OUTPUT_PATH, outWithErr.join(''));
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}
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});
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}
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