text: #!/usr/bin/env node
  /**
   * Copyright (c) 2015-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  'use strict';
  
  const spawn = require('react-dev-utils/crossSpawn');
  const args = process.argv.slice(2);
  
  const scriptIndex = args.findIndex(
    x =>
      x === 'content' ||
      x === 'build' ||
      x === 'eject' ||
      x === 'start' ||
      x === 'test'
  );
  const script = scriptIndex === -1 ? args[0] : args[scriptIndex];
  const nodeArgs = scriptIndex > 0 ? args.slice(0, scriptIndex) : [];
  
  switch (script) {
    case 'content':
    case 'build':
    case 'eject':
    case 'start':
    case 'test': {
      const result = spawn.sync(
        'node',
        nodeArgs
          .concat(require.resolve('../scripts/' + script))
          .concat(args.slice(scriptIndex + 1)),
        { stdio: 'inherit' }
      );
      if (result.signal) {
        if (result.signal === 'SIGKILL') {
          console.log(
            'The build failed because the process exited too early. ' +
              'This probably means the system ran out of memory or someone called ' +
              '`kill -9` on the process.'
          );
        } else if (result.signal === 'SIGTERM') {
          console.log(
            'The build failed because the process exited too early. ' +
              'Someone might have called `kill` or `killall`, or the system could ' +
              'be shutting down.'
          );
        }
        process.exit(1);
      }
      process.exit(result.status);
      break;
    }
    default:
      console.log('Unknown script "' + script + '".');
      console.log('Perhaps you need to update react-scripts?');
      console.log(
        'See: https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/README.md#updating-to-new-releases'
      );
      break;
  }
  