forked from M3-Academy/challenge-algorithms-v2.0
23 lines
534 B
JavaScript
23 lines
534 B
JavaScript
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const { dirname, resolve } = require('path');
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const { readdir, stat } = require('fs');
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const { promisify } = require('util');
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const toStats = promisify(stat);
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const toRead = promisify(readdir);
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module.exports = async function (start, callback) {
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let dir = resolve('.', start);
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let tmp, stats = await toStats(dir);
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if (!stats.isDirectory()) {
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dir = dirname(dir);
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}
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while (true) {
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tmp = await callback(dir, await toRead(dir));
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if (tmp) return resolve(dir, tmp);
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dir = dirname(tmp = dir);
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if (tmp === dir) break;
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}
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}
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