source: frontend/node_modules/locate-path/index.js

'use strict';
const path = require('path');
const fs = require('fs');
const {promisify} = require('util');
const pLocate = require('p-locate');

const fsStat = promisify(fs.stat);
const fsLStat = promisify(fs.lstat);

const typeMappings = {
        directory: 'isDirectory',
        file: 'isFile'
};

function checkType({type}) {
        if (type in typeMappings) {
                return;
        }

        throw new Error(`Invalid type specified: ${type}`);
}

const matchType = (type, stat) => type === undefined || stat[typeMappings[type]]();

module.exports = async (paths, options) => {
        options = {
                cwd: process.cwd(),
                type: 'file',
                allowSymlinks: true,
                ...options
        };
        checkType(options);
        const statFn = options.allowSymlinks ? fsStat : fsLStat;

        return pLocate(paths, async path_ => {
                try {
                        const stat = await statFn(path.resolve(options.cwd, path_));
                        return matchType(options.type, stat);
                } catch (_) {
                        return false;
                }
        }, options);
};

module.exports.sync = (paths, options) => {
        options = {
                cwd: process.cwd(),
                allowSymlinks: true,
                type: 'file',
                ...options
        };
        checkType(options);
        const statFn = options.allowSymlinks ? fs.statSync : fs.lstatSync;

        for (const path_ of paths) {
                try {
                        const stat = statFn(path.resolve(options.cwd, path_));

                        if (matchType(options.type, stat)) {
                                return path_;
                        }
                } catch (_) {
                }
        }
};