metro with symlink support

metro.config.js

const fs = require('fs')

/**
 * Metro configuration for React Native
 * https://github.com/facebook/react-native
 *
 * @format
 */

const isSymlink = dependency =>
  fs.lstatSync(`node_modules/${dependency}`).isSymbolicLink()

const packageJson = require(`./package.json`)
const watchFolders = [
  ...Object.keys(packageJson.devDependencies || {}),
  ...Object.keys(packageJson.dependencies || {}),
]
  .filter(isSymlink)
  .filter(dep => fs.existsSync(`node_modules/${dep}`))
  .map(dep => fs.realpathSync(`node_modules/${dep}`))

module.exports = {
  watchFolders,
  transformer: {
    getTransformOptions: async () => ({
      transform: {
        experimentalImportSupport: false,
        inlineRequires: true,
      },
    }),
  },
}