node_modules/liftup/lib/file_search.js

var findup = require('findup-sync');

module.exports = function(search, paths) {
  var path;
  var len = paths.length;
  for (var i = 0; i < len; i++) {
    if (path) {
      break;
    } else {
      path = findup(search, { cwd: paths[i], nocase: true });
    }
  }
  return path;
};