feat: check and show newer version on create

packages/@vue/cli/lib/Creator.js

@@ -1,12 +1,12 @@
 const chalk = require('chalk')
 const debug = require('debug')
 const execa = require('execa')
-const axios = require('axios')
 const resolve = require('resolve')
 const inquirer = require('inquirer')
 const Generator = require('./Generator')
 const cloneDeep = require('lodash.clonedeep')
 const sortObject = require('./util/sortObject')
+const getVersions = require('./util/getVersions')
 const installDeps = require('./util/installDeps')
 const clearConsole = require('./util/clearConsole')
 const PromptModuleAPI = require('./PromptModuleAPI')
@@ -89,17 +89,11 @@ module.exports = class Creator {
       (hasYarn ? 'yarn' : 'npm')
     )
 
-    clearConsole()
+    await clearConsole()
     logWithSpinner(`✨`, `Creating project in ${chalk.yellow(context)}.`)
 
     // get latest CLI version
-    let latestCLIVersion
-    if (!isTestOrDebug) {
-      const res = await axios.get(`https://registry.npmjs.org/@vue%2Fcli/`)
-      latestCLIVersion = res.data['dist-tags'].latest
-    } else {
-      latestCLIVersion = require('../package.json').version
-    }
+    const { latest } = await getVersions()
     // generate package.json with plugin dependencies
     const pkg = {
       name,
@@ -109,7 +103,7 @@ module.exports = class Creator {
     }
     const deps = Object.keys(preset.plugins)
     deps.forEach(dep => {
-      pkg.devDependencies[dep] = `^${latestCLIVersion}`
+      pkg.devDependencies[dep] = `^${latest}`
     })
     // write package.json
     await writeFileTree(context, {
@@ -185,7 +179,7 @@ module.exports = class Creator {
 
   async promptAndResolvePreset () {
     // prompt
-    clearConsole()
+    await clearConsole()
     const answers = await inquirer.prompt(this.resolveFinalPrompts())
     debug('vue-cli:answers')(answers)
 

packages/@vue/cli/lib/options.js

@@ -2,7 +2,8 @@ const fs = require('fs')
 const os = require('os')
 const path = require('path')
 const cloneDeep = require('lodash.clonedeep')
-const { error, log, createSchema, validate } = require('@vue/cli-shared-utils')
+const { error, log } = require('@vue/cli-shared-utils/lib/logger')
+const { createSchema, validate } = require('@vue/cli-shared-utils/lib/validate')
 
 const rcPath = exports.rcPath = (
   process.env.VUE_CLI_CONFIG_PATH ||

packages/@vue/cli/lib/util/clearConsole.js

@@ -1,13 +1,25 @@
 const chalk = require('chalk')
-const version = require('../../package.json').version
+const semver = require('semver')
+const getVersions = require('./getVersions')
 const { clearConsole } = require('@vue/cli-shared-utils')
 
-let title = chalk.bold.green(`Vue CLI v${version}`)
-if (process.env.VUE_CLI_TEST) {
-  title += ' ' + chalk.blue.bold('TEST')
-}
-if (process.env.VUE_CLI_DEBUG) {
-  title += ' ' + chalk.magenta.bold('DEBUG')
-}
+module.exports = async function clearConsoleWithTitle () {
+  const { current, latest } = await getVersions()
+
+  let title = chalk.bold.blue(`Vue CLI v${current}`)
 
-module.exports = () => clearConsole(title)
+  if (process.env.VUE_CLI_TEST) {
+    title += ' ' + chalk.blue.bold('TEST')
+  }
+  if (process.env.VUE_CLI_DEBUG) {
+    title += ' ' + chalk.magenta.bold('DEBUG')
+  }
+  if (semver.gt(latest, current)) {
+    title += chalk.green(`
+┌─────────────────────────${`─`.repeat(latest.length)}─┐
+│ ✨  Update available: ${latest} ✨  │
+└─────────────────────────${`─`.repeat(latest.length)}─┘`)
+  }
+
+  clearConsole(title)
+}

packages/@vue/cli/lib/util/getVersions.js

@@ -0,0 +1,29 @@
+module.exports = async function getVersions () {
+  const current = require(`../../package.json`).version
+  let latest
+  if (process.env.VUE_CLI_LATEST_VERSION) {
+    // cached value
+    latest = process.env.VUE_CLI_LATEST_VERSION
+  } else if (process.env.VUE_CLI_TEST || process.env.VUE_CLI_DEBUG) {
+    // test/debug, use local version
+    latest = process.env.VUE_CLI_LATEST_VERSION = current
+  } else {
+    const axios = require('axios')
+    const options = require('../options').loadOptions()
+    const registry = options.useTaobaoRegistry
+      ? `https://registry.npm.taobao.org`
+      : `https://registry.npmjs.org`
+
+    const res = await axios.get(`${registry}/vue-cli-version-marker/latest`)
+    if (res.status === 200) {
+      latest = process.env.VUE_CLI_LATEST_VERSION = res.data.version
+    } else {
+      // fallback to local version
+      latest = process.env.VUE_CLI_LATEST_VERSION = current
+    }
+  }
+  return {
+    current,
+    latest
+  }
+}

packages/vue-cli-version-marker/README.md

@@ -0,0 +1,5 @@
+# What is This?
+
+The npm registry does not expose `/latest` endpoints for scoped packages. Getting the full metadata for a scoped package is typically `~300ms` slower than simply getting the latest version from an unscoped package.
+
+This package serves as an unscoped marker to expose the latest version currently published for `@vue/cli`.

packages/vue-cli-version-marker/package.json

@@ -0,0 +1,7 @@
+{
+  "name": "vue-cli-version-marker",
+  "version": "3.0.0-alpha.6",
+  "description": "version marker for @vue/cli",
+  "author": "Evan You",
+  "license": "MIT"
+}