Fix readable-stream in React Native

patch-readable-stream.js

const glob = require('glob');
const fs = require('fs');
const path = require('path');

const ROOT_PATH = path.resolve(`${__dirname}/..`);

// Get paths to all readable-stream packages in the dependency tree
function getPackagePaths(rootPath, packageName) {
  return glob.sync(`${rootPath}/**/node_modules/${packageName}`);
}

// Get paths a package's JavaScript source files, not including dependencies
function getPackageSourceFiles(packagePath) {
  return glob.sync(`${packagePath}/**/*.js`, {
    ignore: 'node_modules',
  });
}

// The readable-stream package calls require() in a way that will cause
// the call to throw an exception when using Webpack or Browserify.
//
//     require('st' + 'ream')
//
// This case is handled: the module catches the exception and continues.
// However, when using React Native Packer, the require() call does not throw
// an exception and instead returns an empty object ({}), causing the module
// to eventually throw an error and crash the program.
//
// This function replaces these calls with an inline function that throws an
// error, like module expects.

function patchSourceFile(content) {
  return content.replace(
    // eslint-disable-next-line
    `require('st' + 'ream')`,
    // eslint-disable-next-line
    `(function() { throw new Error('readable-stream called require(st + ream)') })()`
  );
}

console.log('Patching readable-stream...');

// Get source files of all readable-stream packages in the dependency tree
getPackagePaths(ROOT_PATH, 'readable-stream').forEach((packagePath) => {
  getPackageSourceFiles(packagePath).forEach((sourceFilePath) => {
    // Read the source file and patch it
    const content = fs.readFileSync(sourceFilePath, 'utf8');
    const patched = patchSourceFile(content);
    // If the file content is changed, write to the file
    if (content !== patched) {
      const relPath = path.relative(ROOT_PATH, sourceFilePath);
      console.log(' =>', relPath);
      fs.writeFileSync(sourceFilePath, patched, 'utf8');
    }
  });
});

@parshap Nice. I would like to use a slightly patched version of this file. Would you consider adding an MIT / BSD style license?