chore: tweak command messages

Author: yyx990803

packages/@vue/cli-service-global/index.js

@@ -1,5 +1,6 @@
 const fs = require('fs')
 const path = require('path')
+const chalk = require('chalk')
 const Service = require('@vue/cli-service')
 const { toPlugin, findExisting } = require('./lib/util')
 
@@ -18,11 +19,14 @@ function createService (entry) {
   ])
 
   if (!entry) {
-    throw new Error(`Cannot infer entry file in ${context}. Please specify an entry.`)
+    console.log(chalk.red(`Failed to locate entry file in ${chalk.yellow(context)}.`))
+    console.log(chalk.red(`Valid entry file should be one of: main.js, index.js, App.vue or app.vue.`))
+    process.exit(1)
   }
 
   if (!fs.existsSync(path.join(context, entry))) {
-    throw new Error(`Entry file ${entry} does not exist.`)
+    console.log(chalk.red(`Entry file ${chalk.yellow(entry)} does not exist.`))
+    process.exit(1)
   }
 
   return new Service(context, {

packages/@vue/cli-service-global/package.json

@@ -21,10 +21,11 @@
   },
   "homepage": "https://github.com/vuejs/vue-cli/packages/@vue/cli-build#readme",
   "dependencies": {
-    "@vue/cli-service": "^3.0.0-alpha.1",
-    "@vue/cli-plugin-babel": "^3.0.0-alpha.1",
     "@vue/babel-preset-app": "^3.0.0-alpha.1",
+    "@vue/cli-plugin-babel": "^3.0.0-alpha.1",
     "@vue/cli-plugin-eslint": "^3.0.0-alpha.1",
+    "@vue/cli-service": "^3.0.0-alpha.1",
+    "chalk": "^2.3.0",
     "eslint-plugin-vue": "^4.2.0",
     "vue": "^2.5.13"
   }

packages/@vue/cli/bin/vue

@@ -42,13 +42,6 @@ program
     require('../lib/create')(name, cleanArgs(cmd))
   })
 
-program
-  .command('init <template> <app-name>')
-  .description('generate a project from a remote template (requires @vue/cli-init)')
-  .action(() => {
-    loadCommand('init', '@vue/cli-init')
-  })
-
 program
   .command('serve [entry]')
   .description('serve a .js or vue file in development mode with zero config')
@@ -64,6 +57,13 @@ program
     loadCommand('build', '@vue/cli-service-global').build(entry, cleanArgs(cmd))
   })
 
+program
+  .command('init <template> <app-name>')
+  .description('generate a project from a remote template (legacy API, requires @vue/cli-init)')
+  .action(() => {
+    loadCommand('init', '@vue/cli-init')
+  })
+
 // add some useful info on help
 program.on('--help', () => {
   console.log()