'use strict'; const path = require('path'); const pacote = require('pacote'); const rimraf = require('rimraf'); const prettyFormatPkg = require('pretty-format/package.json'); const prettyFormatPkgPath = require.resolve('pretty-format/package.json'); const reactIsDependencyVersion = prettyFormatPkg.dependencies['react-is']; if (!reactIsDependencyVersion) { throw new Error('Unable to find `react-is` dependency in `pretty-format`'); } const prettyFormatNodeModulesReactIsDir = path.join( path.dirname(prettyFormatPkgPath), 'node_modules/react-is' ); rimraf.sync(prettyFormatNodeModulesReactIsDir); pacote .extract( `react-is@${reactIsDependencyVersion}`, prettyFormatNodeModulesReactIsDir ) .catch(error => { console.error(error); process.exitCode = 1; });