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- import { dirname, resolve } from 'path';
- import { readdir, stat } from 'fs';
- import { promisify } from 'util';
- const toStats = promisify(stat);
- const toRead = promisify(readdir);
- export default 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;
- }
- }
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