64 lines
1.6 KiB
JavaScript
64 lines
1.6 KiB
JavaScript
import path from 'path';
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import cp from 'child_process';
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import webpackConfig from './webpack.config';
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// Should match the text string used in `src/server.js/server.listen(...)`
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const RUNNING_REGEXP = /The server is running at http:\/\/(.*?)\//;
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let server;
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const { output } = webpackConfig.find(x => x.target === 'node');
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const serverPath = path.join(output.path, output.filename);
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// Launch or restart the Node.js server
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function runServer() {
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return new Promise(resolve => {
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let pending = true;
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function onStdOut(data) {
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const time = new Date().toTimeString();
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const match = data.toString('utf8').match(RUNNING_REGEXP);
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process.stdout.write(time.replace(/.*(\d{2}:\d{2}:\d{2}).*/, '[$1] '));
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process.stdout.write(data);
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if (match) {
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server.host = match[1];
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server.stdout.removeListener('data', onStdOut);
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server.stdout.on('data', x => process.stdout.write(x));
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pending = false;
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resolve(server);
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}
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}
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if (server) {
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server.kill('SIGTERM');
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}
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server = cp.spawn('node', [serverPath], {
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env: Object.assign({ NODE_ENV: 'development' }, process.env),
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silent: false,
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});
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if (pending) {
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server.once('exit', (code, signal) => {
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if (pending) {
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throw new Error(`Server terminated unexpectedly with code: ${code} signal: ${signal}`);
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}
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});
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}
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server.stdout.on('data', onStdOut);
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server.stderr.on('data', x => process.stderr.write(x));
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return server;
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});
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}
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process.on('exit', () => {
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if (server) {
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server.kill('SIGTERM');
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}
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});
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export default runServer;
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