feat(nuxt): support parallel plugins (#20460)

packages/nuxt/src/app/nuxt.ts

@@ -158,6 +158,7 @@ export interface PluginMeta {
 export interface ResolvedPluginMeta {
   name?: string
   order: number
+  parallel?: boolean
 }
 
 export interface Plugin<Injections extends Record<string, unknown> = Record<string, unknown>> {
@@ -169,6 +170,12 @@ export interface Plugin<Injections extends Record<string, unknown> = Record<stri
 export interface ObjectPluginInput<Injections extends Record<string, unknown> = Record<string, unknown>> extends PluginMeta {
   hooks?: Partial<RuntimeNuxtHooks>
   setup?: Plugin<Injections>
+  /**
+   * Execute plugin in parallel with other parallel plugins.
+   *
+   * @default false
+   */
+  parallel?: boolean
 }
 
 export interface CreateOptions {
@@ -300,10 +307,19 @@ export async function applyPlugin (nuxtApp: NuxtApp, plugin: Plugin) {
 }
 
 export async function applyPlugins (nuxtApp: NuxtApp, plugins: Plugin[]) {
+  const parallels: Promise<any>[] = []
+  const errors: Error[] = []
   for (const plugin of plugins) {
-    await applyPlugin(nuxtApp, plugin)
+    const promise = applyPlugin(nuxtApp, plugin)
+    if (plugin.meta?.parallel) {
+      parallels.push(promise.catch(e => errors.push(e)))
+    } else {
+      await promise
     }
   }
+  await Promise.all(parallels)
+  if (errors.length) { throw errors[0] }
+}
 
 export function normalizePlugins (_plugins: Plugin[]) {
   const unwrappedPlugins: Plugin[] = []
@@ -382,6 +398,7 @@ export function defineNuxtPlugin<T extends Record<string, unknown>> (plugin: Plu
 
   wrapper.meta = {
     name: meta?.name || plugin.name || plugin.setup?.name,
+    parallel: plugin.parallel,
     order:
       meta?.order ||
       plugin.order ||

test/bundle.test.ts

@@ -34,7 +34,7 @@ describe.skipIf(isWindows || process.env.TEST_BUILDER === 'webpack' || process.e
 
   it('default client bundle size', async () => {
     stats.client = await analyzeSizes('**/*.js', publicDir)
-    expect(roundToKilobytes(stats.client.totalBytes)).toMatchInlineSnapshot('"97.6k"')
+    expect(roundToKilobytes(stats.client.totalBytes)).toMatchInlineSnapshot('"97.7k"')
     expect(stats.client.files.map(f => f.replace(/\..*\.js/, '.js'))).toMatchInlineSnapshot(`
       [
         "_nuxt/entry.js",
@@ -45,7 +45,7 @@ describe.skipIf(isWindows || process.env.TEST_BUILDER === 'webpack' || process.e
 
   it('default server bundle size', async () => {
     stats.server = await analyzeSizes(['**/*.mjs', '!node_modules'], serverDir)
-    expect(roundToKilobytes(stats.server.totalBytes)).toMatchInlineSnapshot('"61.8k"')
+    expect(roundToKilobytes(stats.server.totalBytes)).toMatchInlineSnapshot('"62.2k"')
 
     const modules = await analyzeSizes('node_modules/**/*', serverDir)
     expect(roundToKilobytes(modules.totalBytes)).toMatchInlineSnapshot('"2283k"')