etherpad-lite/src/node/utils/path_exists.js

const fs = require('fs');

const check = function (path) {
  const existsSync = fs.statSync || fs.existsSync || path.existsSync;

  let result;
  try {
    result = existsSync(path);
  } catch (e) {
    result = false;
  }
  return result;
};

module.exports = check;