芝麻web文件管理V1.00

编辑当前文件:/home/freeclou/app.optimyar.com/backend/node_modules/webpack-dev-server/lib/utils/findPort.js
'use strict'; const pRetry = require('p-retry'); const portfinder = require('portfinder'); const defaultPort = require('./defaultPort'); const defaultTo = require('./defaultTo'); const tryParseInt = require('./tryParseInt'); function runPortFinder() { return new Promise((resolve, reject) => { portfinder.basePort = defaultPort; portfinder.getPort((error, port) => { if (error) { return reject(error); } return resolve(port); }); }); } function findPort(port) { if (port) { return Promise.resolve(port); } // Try to find unused port and listen on it for 3 times, // if port is not specified in options. // Because NaN == null is false, defaultTo fails if parseInt returns NaN // so the tryParseInt function is introduced to handle NaN const defaultPortRetry = defaultTo( tryParseInt(process.env.DEFAULT_PORT_RETRY), 3 ); return pRetry(runPortFinder, { retries: defaultPortRetry }); } module.exports = findPort;