Function asyncSetup

lib/exec.ts:491–584

()

    logger.info(`Initialising WINE in ${prefix}`);

    const asyncSetup = async (): Promise<void> => {
        await fs.mkdir(prefix, {recursive: true});

        logger.info('Killing any pre-existing wine-server');
        child_process.exec(`${server} -k || true`, {env: env});

        // We run a long-lived cmd process, to:
        // * test that WINE works
        // * be something which holds open a working firejail sandbox
        // All future WINE compiles go through the same sandbox.
        // We wait until the process has printed out some known good text, but don't wait
        // for it to exit (it won't, on purpose).

        let wineServer: child_process.ChildProcess | undefined;
        if (firejail) {
            logger.info('Starting a new, firejailed, long-lived wineserver complex');
            wineServer = child_process.spawn(
                firejail,
                [
                    '--quiet',
                    '--profile=' + getFirejailProfileFilePath('wine'),
                    '--private',
                    `--name=${wineSandboxName}`,
                    wine,
                    'cmd',
                ],
                {env: env, detached: true},
            );
            logger.info(`firejailed pid=${wineServer.pid}`);
        } else {
            logger.info(`Starting a new, long-lived wineserver complex ${server}`);
            wineServer = child_process.spawn(wine, ['cmd'], {env: env, detached: true});
            logger.info(`wineserver pid=${wineServer.pid}`);
        }

        wineServer.on('close', code => {
            logger.info(`WINE server complex exited with code ${code}`);
        });

        Graceful.on('exit', () => {
            const waitingPromises: Promise<void>[] = [];

            function waitForExit(process: child_process.ChildProcess, name: string): Promise<void> {
                return new Promise(resolve => {
                    process.on('close', () => {
                        logger.info(`Process '${name}' closed`);
                        resolve();
                    });
                });
            }

            if (wineServer && !wineServer.killed) {
                logger.info('Shutting down WINE server complex');
                wineServer.kill();
                if (wineServer.killed) {
                    waitingPromises.push(waitForExit(wineServer, 'WINE server'));
                }
                wineServer = undefined;