Add optionalChaining to relay-compiler@1.4.1

fixPackageRelayCompiler.1.4.js

/* @flow */

const fs = require('fs');

// Add support for optionalChaining in relay-compiler 1.4

const filename = './node_modules/relay-compiler/bin/relay-compiler';
fs.readFile(filename, 'utf8', (err, data) => {
  if (err) {
    return console.log(err);
  }
  const result = data
    .replace(/require\("babylon"\)/g, 'require("@babel/parser")')
    .replace(
      /, 'objectRestSpread']/g,
      ", 'objectRestSpread', 'nullishCoalescingOperator', 'optionalChaining']"
    );

  fs.writeFile(filename, result, 'utf8', e => {
    if (e) console.log(e);
  });

  return undefined;
});

package.json

{
  "scripts": {
    "postinstall": "node ./fixPackageRelayCompiler.1.4.js"
  }
}