feat(plugin-vue): support optional @vue/compiler-sfc peer dep

package.json

@@ -60,9 +60,9 @@
     "yorkie": "^2.0.0"
   },
   "peerDependencies": {
+    "less": ">=4.0.0",
     "sass": ">=1.0.0",
-    "stylus": ">=0.54.0",
-    "less": ">=4.0.0"
+    "stylus": ">=0.54.0"
   },
   "peerDependenciesMeta": {
     "sass": {

packages/plugin-vue/README.md

@@ -1,6 +1,6 @@
 # @vitejs/plugin-vue [![npm](https://img.shields.io/npm/v/@vitejs/plugin-vue.svg)](https://npmjs.com/package/@vitejs/plugin-vue)
 
-Note: requires `@vue/compiler-sfc` as peer dependency. This is largely a port of `rollup-plugin-vue` with some vite-specific tweaks.
+> Note: as of `vue` 3.2.13+ and `@vitejs/plugin-vue` 1.9.0+, `@vue/compiler-sfc` is no longer required as a peer dependency.
 
 ```js
 // vite.config.js
@@ -46,7 +46,7 @@ export interface Options {
    */
   refTransform?: boolean | string | RegExp | (string | RegExp)[]
 
-  // options to pass on to @vue/compiler-sfc
+  // options to pass on to vue/compiler-sfc
   script?: Partial<SFCScriptCompileOptions>
   template?: Partial<SFCTemplateCompileOptions>
   style?: Partial<SFCStyleCompileOptions>

packages/plugin-vue/package.json

@@ -11,7 +11,7 @@
   "scripts": {
     "dev": "tsc -p . -w --incremental",
     "build": "rimraf dist && run-s build-bundle build-types",
-    "build-bundle": "esbuild src/index.ts --bundle --platform=node --target=node12 --external:@vue/compiler-sfc --external:vite --outfile=dist/index.js",
+    "build-bundle": "esbuild src/index.ts --bundle --platform=node --target=node12 --external:@vue/compiler-sfc --external:vue/compiler-sfc --external:vite --outfile=dist/index.js",
     "build-types": "tsc -p . --emitDeclarationOnly --outDir temp && api-extractor run && rimraf temp",
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s --commit-path . --lerna-package plugin-vue",
     "release": "node ../../scripts/release.js"
@@ -29,17 +29,17 @@
   },
   "homepage": "https://github.com/vitejs/vite/tree/main/packages/plugin-vue#readme",
   "peerDependencies": {
-    "@vue/compiler-sfc": "^3.2.6",
     "vite": "^2.5.10"
   },
   "devDependencies": {
     "@rollup/pluginutils": "^4.1.1",
     "@types/hash-sum": "^1.0.0",
-    "@vue/compiler-sfc": "^3.2.12",
     "debug": "^4.3.2",
     "hash-sum": "^2.0.0",
     "rollup": "^2.38.5",
     "slash": "^3.0.0",
-    "source-map": "^0.6.1"
+    "source-map": "^0.6.1",
+    "vue": "^3.2.13",
+    "@vue/compiler-sfc": "^3.2.13"
   }
 }

packages/plugin-vue/src/compiler.ts

@@ -0,0 +1,25 @@
+// extend the descriptor so we can store the scopeId on it
+declare module '@vue/compiler-sfc' {
+  interface SFCDescriptor {
+    id: string
+  }
+}
+
+import * as _compiler from '@vue/compiler-sfc'
+
+export let compiler: typeof _compiler
+
+try {
+  // Vue 3.2.13+ ships the SFC compiler directly under the `vue` package
+  // making it no longer necessary to have @vue/compiler-sfc separately installed.
+  compiler = require('vue/compiler-sfc')
+} catch (e) {
+  try {
+    compiler = require('@vue/compiler-sfc')
+  } catch (e) {
+    throw new Error(
+      `@vitejs/plugin-vue requires vue (>=3.2.13) or @vue/compiler-sfc ` +
+        `to be present in the dependency tree.`
+    )
+  }
+}

packages/plugin-vue/src/index.ts

@@ -1,23 +1,13 @@
-try {
-  require.resolve('@vue/compiler-sfc')
-} catch (e) {
-  throw new Error(
-    '@vitejs/plugin-vue requires @vue/compiler-sfc to be present in the dependency ' +
-      'tree.'
-  )
-}
-
 import fs from 'fs'
 import { Plugin, ViteDevServer } from 'vite'
 import { createFilter } from '@rollup/pluginutils'
 import {
   SFCBlock,
   SFCScriptCompileOptions,
   SFCStyleCompileOptions,
-  SFCTemplateCompileOptions,
-  shouldTransformRef,
-  transformRef
+  SFCTemplateCompileOptions
 } from '@vue/compiler-sfc'
+import { compiler } from './compiler'
 import { parseVueRequest } from './utils/query'
 import { getDescriptor } from './utils/descriptorCache'
 import { getResolvedScript } from './script'
@@ -27,13 +17,6 @@ import { transformTemplateAsModule } from './template'
 import { transformStyle } from './style'
 import { EXPORT_HELPER_ID, helperCode } from './helper'
 
-// extend the descriptor so we can store the scopeId on it
-declare module '@vue/compiler-sfc' {
-  interface SFCDescriptor {
-    id: string
-  }
-}
-
 export { parseVueRequest, VueQuery } from './utils/query'
 
 export interface Options {
@@ -108,7 +91,7 @@ export default function vuePlugin(rawOptions: Options = {}): Plugin {
       : createFilter(refTransform)
 
   // compat for older verisons
-  const canUseRefTransform = typeof shouldTransformRef === 'function'
+  const canUseRefTransform = typeof compiler.shouldTransformRef === 'function'
 
   let options: ResolvedOptions = {
     isProduction: process.env.NODE_ENV === 'production',
@@ -209,8 +192,8 @@ export default function vuePlugin(rawOptions: Options = {}): Plugin {
         if (!query.vue && refTransformFilter(filename)) {
           if (!canUseRefTransform) {
             this.warn('refTransform requires @vue/compiler-sfc@^3.2.5.')
-          } else if (shouldTransformRef(code)) {
-            return transformRef(code, {
+          } else if (compiler.shouldTransformRef(code)) {
+            return compiler.transformRef(code, {
               filename,
               sourceMap: true
             })

packages/plugin-vue/src/main.ts

@@ -1,6 +1,7 @@
 import qs from 'querystring'
 import path from 'path'
-import { rewriteDefault, SFCBlock, SFCDescriptor } from '@vue/compiler-sfc'
+import { SFCBlock, SFCDescriptor } from '@vue/compiler-sfc'
+import { compiler } from './compiler'
 import { ResolvedOptions } from '.'
 import {
   createDescriptor,
@@ -271,7 +272,7 @@ async function genScriptCode(
     // If the script is js/ts and has no external src, it can be directly placed
     // in the main module.
     if ((!script.lang || script.lang === 'ts') && !script.src) {
-      scriptCode = rewriteDefault(script.content, '_sfc_main')
+      scriptCode = compiler.rewriteDefault(script.content, '_sfc_main')
       map = script.map
     } else {
       if (script.src) {

packages/plugin-vue/src/script.ts

@@ -1,6 +1,7 @@
-import { compileScript, SFCDescriptor, SFCScriptBlock } from '@vue/compiler-sfc'
+import { SFCDescriptor, SFCScriptBlock } from '@vue/compiler-sfc'
 import { ResolvedOptions } from '.'
 import { resolveTemplateCompilerOptions } from './template'
+import { compiler } from './compiler'
 
 // ssr and non ssr builds would output different script content
 const clientCache = new WeakMap<SFCDescriptor, SFCScriptBlock | null>()
@@ -38,7 +39,7 @@ export function resolveScript(
 
   let resolved: SFCScriptBlock | null = null
 
-  resolved = compileScript(descriptor, {
+  resolved = compiler.compileScript(descriptor, {
     ...options.script,
     id: descriptor.id,
     isProd: options.isProduction,

packages/plugin-vue/src/style.ts

@@ -1,6 +1,7 @@
-import { compileStyleAsync, SFCDescriptor } from '@vue/compiler-sfc'
+import { SFCDescriptor } from '@vue/compiler-sfc'
 import { TransformPluginContext } from 'rollup'
 import { ResolvedOptions } from '.'
+import { compiler } from './compiler'
 
 // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export async function transformStyle(
@@ -13,7 +14,7 @@ export async function transformStyle(
   const block = descriptor.styles[index]
   // vite already handles pre-processors and CSS module so this is only
   // applying SFC-specific transforms like scoped mode and CSS vars rewrite (v-bind(var))
-  const result = await compileStyleAsync({
+  const result = await compiler.compileStyleAsync({
     ...options.style,
     filename: descriptor.filename,
     id: `data-v-${descriptor.id}`,

packages/plugin-vue/src/template.ts

@@ -1,16 +1,16 @@
 import path from 'path'
 import slash from 'slash'
 import {
-  compileTemplate,
   SFCDescriptor,
   SFCTemplateCompileOptions,
   SFCTemplateCompileResults,
   CompilerOptions
-} from '@vue/compiler-sfc'
+} from 'vue/compiler-sfc'
 import { PluginContext, TransformPluginContext } from 'rollup'
 import { ResolvedOptions } from '.'
 import { getResolvedScript } from './script'
 import { createRollupError } from './utils/error'
+import { compiler } from './compiler'
 
 // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export async function transformTemplateAsModule(
@@ -70,7 +70,7 @@ export function compile(
   ssr: boolean
 ) {
   const filename = descriptor.filename
-  const result = compileTemplate({
+  const result = compiler.compileTemplate({
     ...resolveTemplateCompilerOptions(descriptor, options, ssr)!,
     source: code
   })

packages/plugin-vue/src/utils/descriptorCache.ts

@@ -2,8 +2,9 @@ import fs from 'fs'
 import path from 'path'
 import slash from 'slash'
 import hash from 'hash-sum'
-import { CompilerError, parse, SFCDescriptor } from '@vue/compiler-sfc'
+import { CompilerError, SFCDescriptor } from '@vue/compiler-sfc'
 import { ResolvedOptions } from '..'
+import { compiler } from '../compiler'
 
 // node_modules/@vue/compiler-sfc/dist/compiler-sfc.d.ts SFCParseResult should be exported so it can be re-used
 export interface SFCParseResult {
@@ -19,7 +20,7 @@ export function createDescriptor(
   source: string,
   { root, isProduction, sourceMap }: ResolvedOptions
 ): SFCParseResult {
-  const { descriptor, errors } = parse(source, {
+  const { descriptor, errors } = compiler.parse(source, {
     filename,
     sourceMap
   })