How to use the @vue/cli-ui/server.portfinder.getPortPromise function in @vue/cli-ui
To help you get started, we’ve selected a few @vue/cli-ui examples, based on popular ways it is used in public projects.
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KuangPF / vue-cli-analysis / packages / @vue / cli / lib / ui.js View on Github 
async function ui (options = {}, context = process.cwd()) {
const host = options.host || 'localhost'
let port = options.port
if (!port) {
port = await portfinder.getPortPromise() // port
}
// Config
process.env.VUE_APP_CLI_UI_URL = ''
// Optimize express
const nodeEnv = process.env.NODE_ENV
process.env.NODE_ENV = 'production'
// Dev mode
if (options.dev) {
process.env.VUE_APP_CLI_UI_DEV = true
}
if (!process.env.VUE_CLI_IPC) {
// Prevent IPC id conflictsasync function ui (options = {}, context = process.cwd()) {
const host = options.host || 'localhost'
let port = options.port
if (!port) {
port = await portfinder.getPortPromise()
}
// Config
process.env.VUE_APP_CLI_UI_URL = ''
// Optimize express
const nodeEnv = process.env.NODE_ENV
process.env.NODE_ENV = 'production'
// Dev mode
if (options.dev) {
process.env.VUE_APP_CLI_UI_DEBUG = true
}
if (!process.env.VUE_CLI_IPC) {
// Prevent IPC id conflicts
