feat!: use vue 2.7 to provide composition api

build.config.ts

@@ -9,6 +9,7 @@ export default defineBuildConfig({
   externals: [
     'webpack',
     'vite',
+    'vue',
     'vue-meta'
   ]
 })

package.json

@@ -34,7 +34,6 @@
     "@nuxt/schema": "^3.0.0-rc.4",
     "@nuxt/ui-templates": "^0.1.1",
     "@vitejs/plugin-legacy": "^1.8.2",
-    "@vue/composition-api": "^1.6.2",
     "acorn": "^8.7.1",
     "cookie-es": "^0.5.0",
     "defu": "^6.0.0",
@@ -71,9 +70,8 @@
     "unplugin-vue2-script-setup": "^0.11.0",
     "untyped": "^0.4.4",
     "vite": "^2.9.13",
-    "vite-plugin-vue2": "^2.0.1",
-    "vue-bundle-renderer": "^0.3.9",
-    "vue-template-compiler": "^2.6.14"
+    "@vitejs/plugin-vue2": "^1.1.2",
+    "vue-bundle-renderer": "^0.3.9"
   },
   "devDependencies": {
     "@nuxt/bridge": "link:.",
@@ -92,7 +90,7 @@
     "nuxt": "^2",
     "unbuild": "0.7.4",
     "vitest": "^0.16.0",
-    "vue": "^2",
+    "vue": "^2.7.0",
     "vue-router": "^3"
   },
   "engines": {

src/app.ts

@@ -59,19 +59,16 @@ export async function setupAppBridge (_options: any) {
     references.push({ path: resolve(nuxt.options.buildDir, 'types/schema.d.ts') })
   })
 
-  // Alias vue to have identical vue3 exports
+  // Alias vue3 utilities to vue2
   const { dst: vueCompat } = addTemplate({ src: resolve(distDir, 'runtime/vue2-bridge.mjs') })
   addWebpackPlugin(VueCompat.webpack({ src: vueCompat }))
   addVitePlugin(VueCompat.vite({ src: vueCompat }))
 
-  nuxt.hook('prepare:types', ({ tsConfig, references }) => {
-    // Type 'vue' module with composition API exports
-    references.push({ path: resolve(distDir, 'runtime/vue2-bridge.d.ts') })
-
+  nuxt.hook('prepare:types', ({ tsConfig }) => {
     // Enable Volar support with vue 2 compat mode
     // @ts-ignore
     tsConfig.vueCompilerOptions = {
-      experimentalCompatMode: 2
+      target: 2.7
     }
   })
 

src/auto-imports.ts

@@ -1,5 +1,5 @@
 import { installModule, useNuxt } from '@nuxt/kit'
-import * as CompositionApi from '@vue/composition-api'
+import * as CompositionApi from 'vue'
 import type { Preset } from 'unimport'
 import autoImports from './auto-imports/module'
 
@@ -9,7 +9,7 @@ export function setupAutoImports () {
   const nuxt = useNuxt()
 
   const bridgePresets: Preset[] = [{
-    from: '@vue/composition-api',
+    from: 'vue',
     imports: vue3Keys.filter(i => CapiHelpers.has(i as string))
   }]
 

src/capi.ts

@@ -1,4 +1,3 @@
-import { createRequire } from 'module'
 import { useNuxt, addPluginTemplate, addVitePlugin, addWebpackPlugin } from '@nuxt/kit'
 import { resolve } from 'pathe'
 import { BridgeConfig } from '../types'
@@ -13,15 +12,7 @@ export function setupCAPIBridge (options: Exclude<BridgeConfig['capi'], boolean>
     throw new Error('Please remove `@nuxtjs/composition-api` from `buildModules` to avoid conflict with bridge.')
   }
 
-  // Add composition-api support
-  const _require = createRequire(import.meta.url)
-  const vueCapiEntry = _require.resolve('@vue/composition-api/dist/vue-composition-api.mjs')
-  nuxt.options.alias['@vue/composition-api/dist/vue-composition-api.common.js'] = vueCapiEntry
-  nuxt.options.alias['@vue/composition-api/dist/vue-composition-api.common.prod.js'] = vueCapiEntry
-  nuxt.options.alias['@vue/composition-api/dist/vue-composition-api.esm.js'] = vueCapiEntry
-  nuxt.options.alias['@vue/composition-api/dist/vue-composition-api.js'] = vueCapiEntry
-  nuxt.options.alias['@vue/composition-api/dist/vue-composition-api.mjs'] = vueCapiEntry
-  nuxt.options.alias['@vue/composition-api'] = vueCapiEntry
+  // Add support for onGlobalSetup
   const capiPluginPath = resolve(distDir, 'runtime/capi.plugin.mjs')
   addPluginTemplate({ filename: 'capi.plugin.mjs', src: capiPluginPath })
 
@@ -31,24 +22,16 @@ export function setupCAPIBridge (options: Exclude<BridgeConfig['capi'], boolean>
     nuxt.options.plugins.unshift(appPlugin)
   })
 
-  // Register Composition API before loading the rest of app
-  nuxt.hook('webpack:config', (configs) => {
-    // @ts-ignore
-    configs.forEach(config => config.entry.app.unshift(capiPluginPath))
-  })
-
   if (options.legacy === false) {
     // Skip adding `@nuxtjs/composition-api` handlers if legacy support is disabled
     return
   }
 
   // Handle legacy `@nuxtjs/composition-api`
   nuxt.options.alias['@nuxtjs/composition-api'] = resolve(distDir, 'runtime/capi.legacy.mjs')
-  nuxt.options.build.transpile.push('@nuxtjs/composition-api', '@vue/composition-api')
+  nuxt.options.build.transpile.push('@nuxtjs/composition-api')
 
   // Enable automatic ssrRef key generation
   addVitePlugin(KeyPlugin.vite())
   addWebpackPlugin(KeyPlugin.webpack())
-
-  // TODO: Add @nuxtjs/composition-api shims
 }

src/module.ts

@@ -71,6 +71,9 @@ export default defineNuxtModule({
     if (opts.vite) {
       const viteModule = await import('./vite/module').then(r => r.default || r) as NuxtModule
       nuxt.hook('modules:done', () => installModule(viteModule))
+    } else {
+      // with webpack, we need to transpile vue to handle the default/named exports in Vue 2.7
+      nuxt.options.build.transpile.push('vue')
     }
     if (opts.postcss8) {
       await installModule(_require.resolve('@nuxt/postcss8'))

src/runtime/capi.legacy.mjs

@@ -1,22 +1,18 @@
 import { defu } from 'defu'
-import { computed, getCurrentInstance as getVM, isReactive, isRef, onBeforeMount, onServerPrefetch, reactive, ref, set, shallowRef, toRaw, toRefs, watch } from '@vue/composition-api'
+import { computed, getCurrentInstance as getVM, isReactive, isRef, onBeforeMount, onServerPrefetch, reactive, ref, set, shallowRef, toRaw, toRefs, watch } from 'vue'
 import { useNuxtApp } from './app'
 import { useRouter as _useRouter, useState } from './composables'
 
 // Vue composition API export
 export {
   computed,
-  createApp,
-  createRef,
   customRef,
-  defineAsyncComponent,
   del,
   effectScope,
   getCurrentInstance,
   getCurrentScope,
   h,
   inject,
-  isRaw,
   isReactive,
   isReadonly,
   isRef,
@@ -34,7 +30,6 @@ export {
   onUnmounted,
   onUpdated,
   provide,
-  proxyRefs,
   reactive,
   readonly,
   set,
@@ -48,15 +43,14 @@ export {
   unref,
   useAttrs,
   useCssModule,
-  useCSSModule,
+  useCssModule as useCSSModule,
   useSlots,
   version,
-  warn,
   watch,
   watchEffect,
   watchPostEffect,
   watchSyncEffect
-} from '@vue/composition-api'
+} from 'vue'
 
 export { ref }
 
@@ -73,6 +67,13 @@ const warnOnce = (id, message) => {
   }
 }
 
+export const createApp = () => unsupported('`createApp` is not provided by Vue 2.7.')
+export const createRef = () => unsupported('`createRef` is not provided by Vue 2.7.')
+export const defineAsyncComponent = () => unsupported('`defineAsyncComponent` is not provided by Vue 2.7.')
+export const isRaw = () => unsupported('`isRaw` is not provided by Vue 2.7.')
+export const proxyRefs = () => unsupported('`proxyRefs` is not provided by Vue 2.7.')
+export const warn = () => unsupported('`warn` is not provided by Vue 2.7.')
+
 // Warn in case of having any imports from `@nuxtjs/composition-api`
 warnOnce('import', '`@nuxtjs/composition-api` is deprecated.')
 

src/runtime/capi.plugin.mjs

@@ -1,9 +1,5 @@
-import Vue from 'vue'
-import VueCompositionAPI from '@vue/composition-api'
 import { defineNuxtPlugin } from '#app'
 
-Vue.use(VueCompositionAPI.default || VueCompositionAPI)
-
 export default defineNuxtPlugin((nuxtApp) => {
   const _originalSetup = nuxtApp.nuxt2Context.app.setup
 

src/runtime/composables.ts

@@ -1,4 +1,4 @@
-import { getCurrentInstance, onBeforeUnmount, isRef, watch, reactive, toRef, isReactive, Ref, set } from '@vue/composition-api'
+import { getCurrentInstance, onBeforeUnmount, isRef, watch, reactive, toRef, isReactive, Ref, set } from 'vue'
 import type { CombinedVueInstance } from 'vue/types/vue'
 import type { MetaInfo } from 'vue-meta'
 import type VueRouter from 'vue-router'
@@ -13,7 +13,7 @@ export { useLazyFetch } from './fetch'
 export { useCookie } from './cookie'
 export { useRequestHeaders, useRequestEvent } from './ssr'
 
-export * from '@vue/composition-api'
+export * from 'vue'
 
 const mock = () => () => { throw new Error('not implemented') }
 

src/runtime/head/vueuse-head.plugin.ts

@@ -1,5 +1,5 @@
 import { createHead, renderHeadToString } from '@vueuse/head'
-import { computed, ref, watchEffect, onBeforeUnmount, getCurrentInstance, ComputedGetter } from '@vue/composition-api'
+import { computed, ref, watchEffect, onBeforeUnmount, getCurrentInstance, ComputedGetter } from 'vue'
 import { defu } from 'defu'
 import type { MetaObject } from '..'
 import { defineNuxtPlugin } from '#app'

src/runtime/vue2-bridge.mjs

@@ -1,14 +1,3 @@
-import Vue from 'vue'
-
-export { EffectScope, computed, createApp, createRef, customRef, defineAsyncComponent, defineComponent, del, effectScope, getCurrentInstance, getCurrentScope, h, inject, isRaw, isReactive, isReadonly, isRef, markRaw, nextTick, onActivated, onBeforeMount, onBeforeUnmount, onBeforeUpdate, onDeactivated, onErrorCaptured, onMounted, onScopeDispose, onServerPrefetch, onUnmounted, onUpdated, provide, proxyRefs, reactive, readonly, ref, set, shallowReactive, shallowReadonly, shallowRef, toRaw, toRef, toRefs, triggerRef, unref, useAttrs, useCSSModule, useCssModule, useSlots, warn, watch, watchEffect, watchPostEffect, watchSyncEffect } from '@vue/composition-api'
+export * from 'vue'
 
 export const isFunction = fn => fn instanceof Function
-
-export { Vue as default }
-
-// mock for vue-demi
-export const Vue2 = Vue
-export const isVue2 = true
-export const isVue3 = false
-export const install = () => {}
-export const version = Vue.version

src/vite/client.ts

@@ -1,6 +1,6 @@
 import { resolve } from 'pathe'
 import * as vite from 'vite'
-import { createVuePlugin } from 'vite-plugin-vue2'
+import createVuePlugin from '@vitejs/plugin-vue2'
 import PluginLegacy from '@vitejs/plugin-legacy'
 import { logger } from '@nuxt/kit'
 import { joinURL } from 'ufo'

src/vite/server.ts

@@ -1,6 +1,6 @@
 import { resolve } from 'pathe'
 import * as vite from 'vite'
-import { createVuePlugin } from 'vite-plugin-vue2'
+import createVuePlugin from '@vitejs/plugin-vue2'
 import { logger } from '@nuxt/kit'
 import fse from 'fs-extra'
 import { debounce } from 'perfect-debounce'

src/vite/types.ts

@@ -1,5 +1,5 @@
 import type { InlineConfig, SSROptions } from 'vite'
-import type { VueViteOptions } from 'vite-plugin-vue2'
+import type { Options as VueViteOptions } from '@vitejs/plugin-vue2'
 
 export interface Nuxt {
   options: any;
@@ -10,9 +10,9 @@ export interface Nuxt {
 
 export interface ViteOptions extends Omit<InlineConfig, 'build'> {
   /**
-   * Options for vite-plugin-vue2
+   * Options for @vitejs/plugin-vue2
    *
-   * @see https://github.com/underfin/vite-plugin-vue2
+   * @see https://github.com/vitejs/vite-plugin-vue2
    */
   vue?: VueViteOptions
 

src/vue-compat.ts

@@ -45,30 +45,9 @@ export const VueCompat = createUnplugin((opts: { src?: string }) => {
 })
 
 const vueAliases = [
-  // vue
-  'vue',
   // vue 3 helper packages
   '@vue/shared',
   '@vue/reactivity',
   '@vue/runtime-core',
-  '@vue/runtime-dom',
-  // vue-demi
-  'vue-demi',
-  ...[
-    // vue 2 dist files
-    'vue/dist/vue.common.dev',
-    'vue/dist/vue.common',
-    'vue/dist/vue.common.prod',
-    'vue/dist/vue.esm.browser',
-    'vue/dist/vue.esm.browser.min',
-    'vue/dist/vue.esm',
-    'vue/dist/vue',
-    'vue/dist/vue.min',
-    'vue/dist/vue.runtime.common.dev',
-    'vue/dist/vue.runtime.common',
-    'vue/dist/vue.runtime.common.prod',
-    'vue/dist/vue.runtime.esm',
-    'vue/dist/vue.runtime',
-    'vue/dist/vue.runtime.min'
-  ].flatMap(m => [m, `${m}.js`])
+  '@vue/runtime-dom'
 ]

test/bridge.test.ts

@@ -91,10 +91,7 @@ describe('dynamic paths', () => {
     const html = await $fetch('/foo/assets')
     for (const match of html.matchAll(/(href|src)="(.*?)"/g)) {
       const url = match[2]
-      // TODO: should be /foo/public.svg
-      expect(
-        url.startsWith('/foo/_other/') || url === '/public.svg'
-      ).toBeTruthy()
+      expect(url.startsWith('/foo/_other/') || url === '/foo/public.svg').toBeTruthy()
     }
   })
 
@@ -107,9 +104,8 @@ describe('dynamic paths', () => {
     const html = await $fetch('/foo/assets')
     for (const match of html.matchAll(/(href|src)="(.*?)"/g)) {
       const url = match[2]
-      // TODO: should be https://example.com/public.svg
       expect(
-        url.startsWith('https://example.com/_cdn/') || url === '/public.svg'
+        url.startsWith('https://example.com/_cdn/') || url === 'https://example.com/public.svg'
       ).toBeTruthy()
     }
   })