private init(): void {

		// Enable gracefulFs
		gracefulFs.gracefulify(fs);

		// Massage configuration file URIs
		this.reviveUris();

		// Setup perf
		importEntries(this.configuration.perfEntries);

		// Browser config
		setZoomFactor(webFrame.getZoomFactor()); // Ensure others can listen to zoom level changes
		setZoomLevel(webFrame.getZoomLevel(), true /* isTrusted */); // Can be trusted because we are not setting it ourselves (https://github.com/Microsoft/vscode/issues/26151)
		setFullscreen(!!this.configuration.fullscreen);

		// Keyboard support
		KeyboardMapperFactory.INSTANCE._onKeyboardLayoutChanged();
	}

export const runCLI = async (
  argv: Config.Argv,
  projects: Array<Config.Path>,
): Promise<{
  results: AggregatedResult;
  globalConfig: Config.GlobalConfig;
}> => {
  const realFs = require('fs');
  const fs = require('graceful-fs');
  fs.gracefulify(realFs);

  let results: AggregatedResult | undefined;

  // If we output a JSON object, we can't write anything to stdout, since
  // it'll break the JSON structure and it won't be valid.
  const outputStream =
    argv.json || argv.useStderr ? process.stderr : process.stdout;

  const {globalConfig, configs, hasDeprecationWarnings} = readConfigs(
    argv,
    projects,
  );

  if (argv.debug) {
    logDebugMessages(globalConfig, configs, outputStream);
  }

  if (argv.showConfig) {
    logDebugMessages(globalConfig, configs, process.stdout);
    exit(0);
  }

  if (argv.clearCache) {
    configs.forEach(config => {
      rimraf.sync(config.cacheDirectory);
      process.stdout.write(`Cleared ${config.cacheDirectory}\n`);
    });

    exit(0);
  }

  await _run(
    globalConfig,
    configs,
    hasDeprecationWarnings,
    outputStream,
    r => (results = r),
  );

  if (argv.watch || argv.watchAll) {
    // If in watch mode, return the promise that will never resolve.
    // If the watch mode is interrupted, watch should handle the process
    // shutdown.
    return new Promise(() => {});
  }

  if (!results) {
    throw new Error(
      'AggregatedResult must be present after test run is complete',
    );
  }

  const {openHandles} = results;

  if (openHandles && openHandles.length) {
    const formatted = formatHandleErrors(openHandles, configs[0]);

    const openHandlesString = pluralize('open handle', formatted.length, 's');

    const message =
      chalk.red(
        `\nJest has detected the following ${openHandlesString} potentially keeping Jest from exiting:\n\n`,
      ) + formatted.join('\n\n');

    console.error(message);
  }

  return {globalConfig, results};
};