Function checkFiles

ng-dev/format/format.ts:46–83

(files: string[])

 * @returns a status code indicating whether the format check run was successful.
 */
export async function checkFiles(files: string[]) {
  // Files which are currently not formatted correctly.
  const failures = await runFormatterInParallel(files, 'check');

  if (failures === false) {
    Log.info('No files matched for formatting check.');
    return 0;
  }

  if (failures.length) {
    // Provide output expressing which files are failing formatting.
    Log.warn('\nThe following files are out of format:');
    for (const {filePath} of failures) {
      Log.warn(`  • ${filePath}`);
    }
    Log.warn();

    // If the command is run in a non-CI environment, prompt to format the files immediately.
    let runFormatter = false;
    if (!process.env['CI']) {
      runFormatter = await Prompt.confirm({message: 'Format the files now?', default: true});
    }

    if (runFormatter) {
      // Format the failing files as requested.
      return (await formatFiles(failures.map((f) => f.filePath))) || 0;
    } else {
      // Inform user how to format files in the future.
      Log.info();
      Log.info(`To format the failing file run the following command:`);
      Log.info(`  pnpm ng-dev format files ${failures.map((f) => f.filePath).join(' ')}`);
      return 1;
    }
  } else {
    Log.info(green('✔  All files correctly formatted.'));
    return 0;
  }
}