rn-cli.config.js

rn-cli.config.js

const path = require('path');

// Don't forget to everything listed here to `package.json`
// modulePathIgnorePatterns.
const sharedBlacklist = [
  /node_modules[/\\]react[/\\]dist[/\\].*/,

  'downstream/core/invariant.js',

  /website\/node_modules\/.*/,

  // TODO(jkassens, #9876132): Remove this rule when it's no longer needed.
  'Libraries/Relay/relay/tools/relayUnstableBatchedUpdates.js',
];

const platformBlacklists = {
  web: [
    '.ios.js',
    '.android.js',
  ],
  ios: [
    '.web.js',
//    '.android.js',
    /node_modules\/react-native-macos\/.*/,
  ],
  android: [
    '.web.js',
    '.ios.js',
    /node_modules\/react-native-macos\/.*/,
  ],
  macos: [
    '.ios.js',
    '.android.js',
    /node_modules\/react-native\/.*/,
  ],
};

function escapeRegExp(pattern) {
  if (Object.prototype.toString.call(pattern) === '[object RegExp]') {
    return pattern.source.replace(/\//g, path.sep);
  } else if (typeof pattern === 'string') {
    const escaped = pattern.replace(/[\-\[\]\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
    // convert the '/' into an escaped local file separator
    return escaped.replace(/\//g, `\\${path.sep}`);
  }
  throw new Error(`Unexpected packager blacklist pattern: ${pattern}`);
}

function blacklist(platform, additionalBlacklist) {
  // eslint-disable-next-line
  return new RegExp('(' +
    (additionalBlacklist || []).concat(sharedBlacklist)
      .concat(platformBlacklists[platform] || [])
      .map(escapeRegExp)
      .join('|') +
    ')$'
  );
}

module.exports = {
  getBlacklistRE(platform) {
    if (process && process.argv.filter(a => a.indexOf('react-native-macos') > -1).length > 0) {
      return blacklist('macos')
    }
    return blacklist(platform);
  },
};

Hi @ptmt, just wanted to mention that you have a bug on line 65 - I think it should be:

return blacklist(platform);

@ndbroadbent, indeed, you're right, thanks for the correction