source: trip-planner-front/node_modules/escalade/dist/index.js

const { dirname, resolve } = require('path');
const { readdir, stat } = require('fs');
const { promisify } = require('util');

const toStats = promisify(stat);
const toRead = promisify(readdir);

module.exports = async function (start, callback) {
        let dir = resolve('.', start);
        let tmp, stats = await toStats(dir);

        if (!stats.isDirectory()) {
                dir = dirname(dir);
        }

        while (true) {
                tmp = await callback(dir, await toRead(dir));
                if (tmp) return resolve(dir, tmp);
                dir = dirname(tmp = dir);
                if (tmp === dir) break;
        }
}