frontend-admin / Daocheng-Yading

  const { dirname, resolve } = require('path');
  const { readdirSync, statSync } = require('fs');
  
  module.exports = function (start, callback) {
  	let dir = resolve('.', start);
  	let tmp, stats = statSync(dir);
  
  	if (!stats.isDirectory()) {
  		dir = dirname(dir);
  	}
  
  	while (true) {
  		tmp = callback(dir, readdirSync(dir));
  		if (tmp) return resolve(dir, tmp);
  		dir = dirname(tmp = dir);
  		if (tmp === dir) break;
  	}
  }