feat(unplugin): expose options for embedded plugins, throw warnings f…

…or duplication (#3207)

playground-vue/vite.config.ts

@@ -1,7 +1,5 @@
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
-import AutoImports from 'unplugin-auto-import/vite'
-import VueComponents from 'unplugin-vue-components'
 
 import ui from '../src/vite'
 
@@ -20,12 +18,13 @@ export default defineConfig({
           primary: 'green',
           neutral: 'slate'
         }
+      },
+      autoImport: {
+        imports: ['vue']
+      },
+      components: {
+        dirs: ['../playground/app/components']
       }
-    }),
-    // these are required as we share the component pages with the Nuxt playground
-    AutoImports({ imports: ['vue'] }),
-    VueComponents.vite({
-      dirs: ['../playground/app/components']
     })
   ],
   optimizeDeps: {

src/plugins/auto-import.ts

@@ -0,0 +1,20 @@
+import { join } from 'pathe'
+import type { UnpluginContextMeta, UnpluginOptions } from 'unplugin'
+import { defu } from 'defu'
+
+import { runtimeDir } from '../unplugin'
+import type { NuxtUIOptions } from '../unplugin'
+import AutoImport from 'unplugin-auto-import'
+import type { Options as AutoImportOptions } from 'unplugin-auto-import/types'
+
+/**
+ * This plugin adds all the Nuxt UI composables as auto-imports.
+ */
+export default function AutoImportPlugin(options: NuxtUIOptions, meta: UnpluginContextMeta): UnpluginOptions {
+  const pluginOptions = defu(options.autoImport, <AutoImportOptions>{
+    dts: options.dts ?? true,
+    dirs: [join(runtimeDir, 'composables')]
+  })
+
+  return AutoImport.raw(pluginOptions, meta) as UnpluginOptions
+}

src/plugins/components.ts

@@ -2,20 +2,35 @@ import { join, normalize } from 'pathe'
 import type { UnpluginContextMeta, UnpluginOptions } from 'unplugin'
 import { globSync } from 'tinyglobby'
 import AutoImportComponents from 'unplugin-vue-components'
+import type { Options as ComponentsOptions } from 'unplugin-vue-components/types'
 
 import { runtimeDir } from '../unplugin'
 import type { NuxtUIOptions } from '../unplugin'
+import { defu } from 'defu'
 
 /**
  * This plugin adds all the Nuxt UI components as auto-imports.
  */
-export default function ComponentImportPlugin(framework: UnpluginContextMeta['framework'], options: NuxtUIOptions & { prefix: NonNullable<NuxtUIOptions['prefix']> }) {
+export default function ComponentImportPlugin(options: NuxtUIOptions & { prefix: NonNullable<NuxtUIOptions['prefix']> }, meta: UnpluginContextMeta) {
   const components = globSync('**/*.vue', { cwd: join(runtimeDir, 'components') })
   const componentNames = new Set(components.map(c => `${options.prefix}${c.replace(/\.vue$/, '')}`))
 
   const overrides = globSync('**/*.vue', { cwd: join(runtimeDir, 'vue/components') })
   const overrideNames = new Set(overrides.map(c => `${options.prefix}${c.replace(/\.vue$/, '')}`))
 
+  const pluginOptions = defu(options.components, <ComponentsOptions>{
+    dts: options.dts ?? true,
+    exclude: [/[\\/]node_modules[\\/](?!\.pnpm|@nuxt\/ui)/, /[\\/]\.git[\\/]/, /[\\/]\.nuxt[\\/]/],
+    resolvers: [
+      (componentName) => {
+        if (overrideNames.has(componentName))
+          return { name: 'default', from: join(runtimeDir, 'vue/components', `${componentName.slice(options.prefix.length)}.vue`) }
+        if (componentNames.has(componentName))
+          return { name: 'default', from: join(runtimeDir, 'components', `${componentName.slice(options.prefix.length)}.vue`) }
+      }
+    ]
+  })
+
   return [
     /**
      * This plugin aims to ensure we override certain components with Vue-compatible versions:
@@ -41,18 +56,7 @@ export default function ComponentImportPlugin(framework: UnpluginContextMeta['fr
         }
       }
     },
-    AutoImportComponents[framework]({
-      dts: options.dts ?? true,
-      exclude: [/[\\/]node_modules[\\/](?!\.pnpm|@nuxt\/ui)/, /[\\/]\.git[\\/]/, /[\\/]\.nuxt[\\/]/],
-      resolvers: [
-        (componentName) => {
-          if (overrideNames.has(componentName))
-            return { name: 'default', from: join(runtimeDir, 'vue/components', `${componentName.slice(options.prefix.length)}.vue`) }
-          if (componentNames.has(componentName))
-            return { name: 'default', from: join(runtimeDir, 'components', `${componentName.slice(options.prefix.length)}.vue`) }
-        }
-      ]
-    })
+    AutoImportComponents.raw(pluginOptions, meta) as UnpluginOptions
   ] satisfies UnpluginOptions[]
 }
 

src/unplugin.ts

@@ -1,8 +1,10 @@
 import { fileURLToPath } from 'node:url'
 
-import { join, normalize } from 'pathe'
+import { normalize } from 'pathe'
+import type { UnpluginOptions } from 'unplugin'
 import { createUnplugin } from 'unplugin'
-import AutoImport from 'unplugin-auto-import'
+import type { Options as AutoImportOptions } from 'unplugin-auto-import/types'
+import type { Options as ComponentsOptions } from 'unplugin-vue-components/types'
 import { defu } from 'defu'
 import tailwind from '@tailwindcss/vite'
 import type colors from 'tailwindcss/colors'
@@ -20,6 +22,7 @@ import ComponentImportPlugin from './plugins/components'
 import NuxtEnvironmentPlugin from './plugins/nuxt-environment'
 
 import type { DeepPartial } from './runtime/types/utils'
+import AutoImportPlugin from './plugins/auto-import'
 
 type NeutralColor = 'slate' | 'gray' | 'zinc' | 'neutral' | 'stone'
 type Color = Exclude<keyof typeof colors, 'inherit' | 'current' | 'transparent' | 'black' | 'white' | NeutralColor> | (string & {})
@@ -39,6 +42,14 @@ export interface NuxtUIOptions extends Omit<ModuleOptions, 'fonts' | 'colorMode'
    * @defaultValue `true`
    */
   colorMode?: boolean
+  /**
+   * Override options for `unplugin-auto-import`
+   */
+  autoImport?: Partial<AutoImportOptions>
+  /**
+   * Override options for `unplugin-vue-components`
+   */
+  components?: Partial<ComponentsOptions>
 }
 
 export const runtimeDir = normalize(fileURLToPath(new URL('./runtime', import.meta.url)))
@@ -53,11 +64,26 @@ export const NuxtUIPlugin = createUnplugin<NuxtUIOptions | undefined>((_options
 
   return [
     NuxtEnvironmentPlugin(),
-    ...ComponentImportPlugin(meta.framework, options),
-    AutoImport[meta.framework]({ dts: options.dts ?? true, dirs: [join(runtimeDir, 'composables')] }),
+    ComponentImportPlugin(options, meta),
+    AutoImportPlugin(options, meta),
     tailwind(),
     PluginsPlugin(options),
     TemplatePlugin(options, appConfig),
-    AppConfigPlugin(options, appConfig)
-  ]
+    AppConfigPlugin(options, appConfig),
+    <UnpluginOptions>{
+      name: 'nuxt:ui:plugins-duplication-detection',
+      vite: {
+        configResolved(config) {
+          const plugins = config.plugins || []
+
+          if (plugins.filter(i => i.name === 'unplugin-auto-import').length > 1) {
+            throw new Error('[Nuxt UI] Multiple instances of `unplugin-auto-import` detected. Nuxt UI includes `unplugin-auto-import` already, and you can configure it using `autoImport` option in Nuxt UI module options.')
+          }
+          if (plugins.filter(i => i.name === 'unplugin-vue-components').length > 1) {
+            throw new Error('[Nuxt UI] Multiple instances of `unplugin-vue-components` detected. Nuxt UI includes `unplugin-vue-components` already, and you can configure it using `components` option in Nuxt UI module options.')
+          }
+        }
+      }
+    }
+  ].flat(1) as UnpluginOptions[]
 })