test: test for vue invoke

packages/@vue/cli/__tests__/invoke.spec.js

@@ -0,0 +1,30 @@
+const create = require('@vue/cli-test-utils/createTestProject')
+
+test('invoke single generator', async () => {
+  const project = await create('invoke', {
+    plugins: {
+      '@vue/cli-plugin-babel': {}
+    }
+  })
+  // mock install
+  const pkg = JSON.parse(await project.read('package.json'))
+  pkg.devDependencies['@vue/cli-plugin-eslint'] = '*'
+  await project.write('package.json', JSON.stringify(pkg, null, 2))
+
+  const cliBinPath = require.resolve('../bin/vue')
+  await project.run(`${cliBinPath} invoke eslint --config airbnb --lintOn save,commit`)
+
+  const updatedPkg = JSON.parse(await project.read('package.json'))
+  expect(updatedPkg.scripts.lint).toBe('vue-cli-service lint')
+  expect(updatedPkg.devDependencies).toHaveProperty('eslint-plugin-vue')
+  expect(updatedPkg.devDependencies).toHaveProperty('lint-staged')
+  expect(updatedPkg.eslintConfig).toEqual({
+    extends: ['plugin:vue/essential', '@vue/airbnb']
+  })
+  expect(updatedPkg.gitHooks).toEqual({
+    'pre-commit': 'lint-staged'
+  })
+
+  const lintedMain = await project.read('src/main.js')
+  expect(lintedMain).toMatch(';') // should've been linted in post-generate hook
+})

packages/@vue/cli/bin/vue

@@ -18,8 +18,12 @@ if (!semver.satisfies(process.version, requiredVersion)) {
 }
 
 // enter debug mode when creating test repo
-if (slash(process.cwd()).indexOf('/packages/test') > 0 &&
-    fs.existsSync(path.resolve(process.cwd(), '../@vue'))) {
+if (
+  slash(process.cwd()).indexOf('/packages/test') > 0 && (
+    fs.existsSync(path.resolve(process.cwd(), '../@vue')) ||
+    fs.existsSync(path.resolve(process.cwd(), '../../@vue'))
+  )
+) {
   process.env.VUE_CLI_DEBUG = true
 }
 

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

@@ -3,9 +3,13 @@ const path = require('path')
 const chalk = require('chalk')
 const resolve = require('resolve')
 const Generator = require('./Generator')
+const { loadOptions } = require('./options')
+const installDeps = require('./util/installDeps')
+const clearConsole = require('./util/clearConsole')
 const {
   log,
   error,
+  hasYarn,
   logWithSpinner,
   stopSpinner
 } = require('@vue/cli-shared-utils')
@@ -58,13 +62,25 @@ async function invoke (pluginName, options) {
     createCompleteCbs
   )
 
+  clearConsole()
+  logWithSpinner('🚀', `Invoking generator for ${resolvedPluginName}...`)
   await generator.generate()
 
-  // TODO check if package.json was changed,
-  // if yes installDeps
-  logWithSpinner('📦', `Installing additional dependencies...`)
+  const isTestOrDebug = process.env.VUE_CLI_TEST || process.env.VUE_CLI_DEBUG
+  const newDeps = generator.pkg.dependencies
+  const newDevDeps = generator.pkg.devDependencies
+  const depsChanged = (
+    JSON.stringify(newDeps) !== JSON.stringify(pkg.dependencies) ||
+    JSON.stringify(newDevDeps) !== JSON.stringify(pkg.devDependencies)
+  )
 
-  if (createCompleteCbs.lenght) {
+  if (!isTestOrDebug && depsChanged) {
+    logWithSpinner('📦', `Installing additional dependencies...`)
+    const packageManager = loadOptions().packageManager || (hasYarn ? 'yarn' : 'npm')
+    await installDeps(context, packageManager)
+  }
+
+  if (createCompleteCbs.length) {
     logWithSpinner('⚓', `Running completion hooks...`)
     for (const cb of createCompleteCbs) {
       await cb()
@@ -73,8 +89,8 @@ async function invoke (pluginName, options) {
 
   stopSpinner()
   log()
-  log(`  Successfully invoked generator for plugin: ${chalk.cyan(resolvedPluginName)}`)
-  log(`  You should review and commit the changes.`)
+  log(`   Successfully invoked generator for plugin: ${chalk.cyan(resolvedPluginName)}`)
+  log(`   You should review and commit the changes.`)
   log()
 }