From 7c580b8f0bcd7bfc9905976a883c1405ad563c1c Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Wed, 10 Mar 2021 13:28:33 +0800
Subject: [PATCH] fix: fix `build --dest` option (#6314)

Closes #6312
---
 packages/@vue/cli-service/__tests__/build.spec.js  | 14 ++++++++++++++
 .../lib/commands/build/resolveAppConfig.js         |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/packages/@vue/cli-service/__tests__/build.spec.js b/packages/@vue/cli-service/__tests__/build.spec.js
index 8ebd58e65a..c32e8bffa8 100644
--- a/packages/@vue/cli-service/__tests__/build.spec.js
+++ b/packages/@vue/cli-service/__tests__/build.spec.js
@@ -91,6 +91,20 @@ test('build with --report-json', async () => {
   expect(appChunk).toHaveProperty('modules')
 })
 
+test('build with --dest', async () => {
+  const project = await create('e2e-build-dest', defaultPreset)
+
+  const { stdout } = await project.run('vue-cli-service build --dest other_dist')
+  expect(stdout).toMatch('Build complete.')
+
+  expect(project.has('other_dist/index.html')).toBe(true)
+  expect(project.has('other_dist/favicon.ico')).toBe(true)
+  expect(project.has('other_dist/js')).toBe(true)
+  expect(project.has('other_dist/css')).toBe(true)
+
+  expect(project.has('dist')).toBe(false)
+})
+
 afterAll(async () => {
   if (browser) {
     await browser.close()
diff --git a/packages/@vue/cli-service/lib/commands/build/resolveAppConfig.js b/packages/@vue/cli-service/lib/commands/build/resolveAppConfig.js
index 564482cf40..d073f6ddd6 100644
--- a/packages/@vue/cli-service/lib/commands/build/resolveAppConfig.js
+++ b/packages/@vue/cli-service/lib/commands/build/resolveAppConfig.js
@@ -12,7 +12,7 @@ module.exports = (api, args, options) => {
   // respect inline build destination in copy plugin
   if (args.dest && config.plugins.has('copy')) {
     config.plugin('copy').tap(pluginArgs => {
-      pluginArgs[0][0].to = targetDir
+      pluginArgs[0].patterns.to = targetDir
       return pluginArgs
     })
   }