From 3d7af8a898be213a2568833e7827a8dbe2583c7a Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Sat, 24 Aug 2019 23:58:10 +0800
Subject: [PATCH 1/2] feat: add `vue outdated` command & make `vue upgrade`
 interactive

---
 packages/@vue/cli/bin/vue.js      |  8 ++++++++
 packages/@vue/cli/lib/Upgrader.js |  2 --
 packages/@vue/cli/lib/outdated.js | 17 +++++++++++++++++
 packages/@vue/cli/lib/upgrade.js  | 19 ++++++++++++++++++-
 4 files changed, 43 insertions(+), 3 deletions(-)
 create mode 100644 packages/@vue/cli/lib/outdated.js

diff --git a/packages/@vue/cli/bin/vue.js b/packages/@vue/cli/bin/vue.js
index c9a73e6cc8..c85fe3c00b 100755
--- a/packages/@vue/cli/bin/vue.js
+++ b/packages/@vue/cli/bin/vue.js
@@ -166,6 +166,14 @@ program
     require('../lib/config')(value, cleanArgs(cmd))
   })
 
+program
+  .command('outdated')
+  .description('(experimental) check for outdated vue cli service / plugins')
+  .option('--next', 'Also check for alpha / beta / rc versions when upgrading')
+  .action((cmd) => {
+    require('../lib/outdated')(cleanArgs(cmd))
+  })
+
 program
   .command('upgrade [plugin-name]')
   .description('(experimental) upgrade vue cli service / plugins')
diff --git a/packages/@vue/cli/lib/Upgrader.js b/packages/@vue/cli/lib/Upgrader.js
index 5a9cd7577d..3c63829966 100644
--- a/packages/@vue/cli/lib/Upgrader.js
+++ b/packages/@vue/cli/lib/Upgrader.js
@@ -257,8 +257,6 @@ module.exports = class Upgrader {
       console.log('  ' + fields.map((x, i) => x.padEnd(pads[i])).join(''))
     }
 
-    console.log(`Run ${chalk.yellow('vue upgrade --all')} to upgrade all the above plugins`)
-
     return upgradable
   }
 }
diff --git a/packages/@vue/cli/lib/outdated.js b/packages/@vue/cli/lib/outdated.js
new file mode 100644
index 0000000000..b315c5fde0
--- /dev/null
+++ b/packages/@vue/cli/lib/outdated.js
@@ -0,0 +1,17 @@
+const { error } = require('@vue/cli-shared-utils')
+
+const Upgrader = require('./Upgrader')
+
+async function outdated (options, context = process.cwd()) {
+  const upgrader = new Upgrader(context)
+  return upgrader.checkForUpdates(options.next)
+}
+
+module.exports = (...args) => {
+  return outdated(...args).catch(err => {
+    error(err)
+    if (!process.env.VUE_CLI_TEST) {
+      process.exit(1)
+    }
+  })
+}
diff --git a/packages/@vue/cli/lib/upgrade.js b/packages/@vue/cli/lib/upgrade.js
index 4ba6725c71..a0233e16cf 100644
--- a/packages/@vue/cli/lib/upgrade.js
+++ b/packages/@vue/cli/lib/upgrade.js
@@ -1,3 +1,4 @@
+const inquirer = require('inquirer')
 const { error } = require('@vue/cli-shared-utils')
 
 const Upgrader = require('./Upgrader')
@@ -20,7 +21,23 @@ async function upgrade (packageName, options, context = process.cwd()) {
       return upgrader.upgradeAll(options.next)
     }
 
-    return upgrader.checkForUpdates(options.next)
+    const upgradable = await upgrader.checkForUpdates(options.next)
+    if (upgradable) {
+      const { ok } = await inquirer.prompt([
+        {
+          name: 'ok',
+          type: 'confirm',
+          message: 'Continue to upgrade these plugins?',
+          default: false
+        }
+      ])
+
+      if (ok) {
+        return upgrader.upgradeAll(options.next)
+      }
+    }
+
+    return
   }
 
   return upgrader.upgrade(packageName, options)

From 869e77bee78399becfc924330ea5592c3964f348 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Fri, 30 Aug 2019 01:45:28 +0800
Subject: [PATCH 2/2] chore: default to true for upgrade command

---
 packages/@vue/cli/lib/upgrade.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/@vue/cli/lib/upgrade.js b/packages/@vue/cli/lib/upgrade.js
index a0233e16cf..541beb9926 100644
--- a/packages/@vue/cli/lib/upgrade.js
+++ b/packages/@vue/cli/lib/upgrade.js
@@ -28,7 +28,7 @@ async function upgrade (packageName, options, context = process.cwd()) {
           name: 'ok',
           type: 'confirm',
           message: 'Continue to upgrade these plugins?',
-          default: false
+          default: true
         }
       ])