| 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; |
| } |
| } |