fix(nuxt): resolve layer assets in relation to layer directory (#20932)

packages/nuxt/src/core/nuxt.ts

@@ -86,11 +86,15 @@ async function initNuxt (nuxt: Nuxt) {
     // Add layer aliasing support for ~, ~~, @ and @@ aliases
     addVitePlugin(() => LayerAliasingPlugin.vite({
       sourcemap: nuxt.options.sourcemap.server || nuxt.options.sourcemap.client,
+      dev: nuxt.options.dev,
+      root: nuxt.options.srcDir,
       // skip top-level layer (user's project) as the aliases will already be correctly resolved
       layers: nuxt.options._layers.slice(1)
     }))
     addWebpackPlugin(() => LayerAliasingPlugin.webpack({
       sourcemap: nuxt.options.sourcemap.server || nuxt.options.sourcemap.client,
+      dev: nuxt.options.dev,
+      root: nuxt.options.srcDir,
       // skip top-level layer (user's project) as the aliases will already be correctly resolved
       layers: nuxt.options._layers.slice(1),
       transform: true

packages/nuxt/src/core/plugins/layer-aliasing.ts

@@ -1,24 +1,37 @@
+import { existsSync, readdirSync } from 'node:fs'
 import { createUnplugin } from 'unplugin'
 import type { NuxtConfigLayer } from 'nuxt/schema'
 import { resolveAlias } from '@nuxt/kit'
-import { normalize } from 'pathe'
+import { join, normalize, relative } from 'pathe'
 import MagicString from 'magic-string'
 
 interface LayerAliasingOptions {
   sourcemap?: boolean
   transform?: boolean
+  root: string
+  dev: boolean
   layers: NuxtConfigLayer[]
 }
 
 const ALIAS_RE = /(?<=['"])[~@]{1,2}(?=\/)/g
 
 export const LayerAliasingPlugin = createUnplugin((options: LayerAliasingOptions) => {
-  const aliases = Object.fromEntries(options.layers.map(l => [l.config.srcDir || l.cwd, {
+  const aliases = Object.fromEntries(options.layers.map((l) => {
-    '~': l.config?.alias?.['~'] || l.config.srcDir || l.cwd,
+    const srcDir = l.config.srcDir || l.cwd
-    '@': l.config?.alias?.['@'] || l.config.srcDir || l.cwd,
+    const rootDir = l.config.rootDir || l.cwd
-    '~~': l.config?.alias?.['~~'] || l.config.rootDir || l.cwd,
+    const publicDir = join(srcDir, l.config?.dir?.public || 'public')
-    '@@': l.config?.alias?.['@@'] || l.config.rootDir || l.cwd
+
-  }]))
+    return [srcDir, {
+      aliases: {
+        '~': l.config?.alias?.['~'] || srcDir,
+        '@': l.config?.alias?.['@'] || srcDir,
+        '~~': l.config?.alias?.['~~'] || rootDir,
+        '@@': l.config?.alias?.['@@'] || rootDir
+      },
+      prefix: relative(options.root, publicDir),
+      publicDir: !options.dev && existsSync(publicDir) && publicDir
+    }]
+  }))
   const layers = Object.keys(aliases).sort((a, b) => b.length - a.length)
 
   return {
@@ -33,7 +46,13 @@ export const LayerAliasingPlugin = createUnplugin((options: LayerAliasingOptions
           const layer = layers.find(l => importer.startsWith(l))
           if (!layer) { return }
 
-          const resolvedId = resolveAlias(id, aliases[layer])
+          const publicDir = aliases[layer].publicDir
+          if (id.startsWith('/') && publicDir && readdirSync(publicDir).some(file => file === id.slice(1) || id.startsWith('/' + file + '/'))) {
+            const resolvedId = '/' + join(aliases[layer].prefix, id.slice(1))
+            return await this.resolve(resolvedId, importer, { skipSelf: true })
+          }
+
+          const resolvedId = resolveAlias(id, aliases[layer].aliases)
           if (resolvedId !== id) {
             return await this.resolve(resolvedId, importer, { skipSelf: true })
           }
@@ -55,7 +74,7 @@ export const LayerAliasingPlugin = createUnplugin((options: LayerAliasingOptions
       if (!layer || !code.match(ALIAS_RE)) { return }
 
       const s = new MagicString(code)
-      s.replace(ALIAS_RE, r => aliases[layer][r as '~'] || r)
+      s.replace(ALIAS_RE, r => aliases[layer].aliases[r as '~'] || r)
 
       if (s.hasChanged()) {
         return {

test/fixtures/basic/extends/bar/components/ExtendsOverride.vue

@@ -1,3 +1,4 @@
 <template>
   <div>Extended component from bar</div>
+  <img src="/nuxt.svg">
 </template>

test/fixtures/basic/extends/bar/public/nuxt.svg

@@ -0,0 +1,18 @@
+<svg viewBox="0 0 221 65" fill="none" xmlns="http://www.w3.org/2000/svg" class="h-8">
+  <g clip-path="url(#a)">
+    <path fill="currentColor"
+      d="M82.5623 18.5705h7.3017l15.474 24.7415V18.5705h6.741v35.0576h-7.252L89.3025 28.938v24.6901h-6.7402V18.5705ZM142.207 53.628h-6.282v-3.916c-1.429 2.7559-4.339 4.3076-8.015 4.3076-5.822 0-9.603-4.1069-9.603-10.0175V28.3847h6.282v14.3251c0 3.4558 2.146 5.8592 5.362 5.8592 3.524 0 5.974-2.7044 5.974-6.4099V28.3847h6.282V53.628ZM164.064 53.2289l-6.026-8.4144-6.027 8.4144h-6.69l9.296-13.1723-8.58-12.0709h6.843l5.158 7.2641 5.106-7.2641h6.895l-8.632 12.0709 9.295 13.1723h-6.638ZM183.469 20.7726v7.6116h7.149v5.1593h-7.149v12.5311c0 .4208.17.8245.473 1.1223.303.2978.715.4654 1.144.4661h5.532v5.9547h-4.137c-5.617 0-9.293-3.2062-9.293-8.8109V33.5484h-5.056v-5.1642h3.172c1.479 0 2.34-.8639 2.34-2.2932v-5.3184h5.825Z">
+    </path>
+    <path fill-rule="evenodd" clip-rule="evenodd"
+      d="M30.1185 11.5456c-1.8853-3.24168-6.5987-3.24169-8.484 0L1.08737 46.8747c-1.885324 3.2417.47133 7.2938 4.24199 7.2938H21.3695c-1.6112-1.4081-2.2079-3.8441-.9886-5.9341l15.5615-26.675-5.8239-10.0138Z"
+      fill="#80EEC0"></path>
+    <path
+      d="M43.1374 19.2952c1.5603-2.6523 5.461-2.6523 7.0212 0l17.0045 28.9057c1.5603 2.6522-.39 5.9676-3.5106 5.9676h-34.009c-3.1206 0-5.0709-3.3154-3.5106-5.9676l17.0045-28.9057ZM209.174 53.8005H198.483c0-1.8514.067-3.4526 0-6.0213h10.641c1.868 0 3.353.1001 4.354-.934 1-1.0341 1.501-2.3351 1.501-3.9029 0-1.8347-.667-3.2191-2.002-4.1532-1.301-.9674-2.985-1.4511-5.054-1.4511h-2.601v-5.2539h2.652c1.701 0 3.119-.4003 4.253-1.2009 1.134-.8006 1.701-1.9849 1.701-3.5527 0-1.301-.434-2.3351-1.301-3.1023-.834-.8007-2.001-1.201-3.503-1.201-1.634 0-2.918.4837-3.853 1.4511-.9.9674-1.401 2.1517-1.501 3.5527h-6.254c.133-3.2358 1.251-5.7877 3.352-7.6558 2.135-1.868 4.887-2.8021 8.256-2.8021 2.402 0 4.42.4337 6.055 1.301 1.668.834 2.919 1.9515 3.753 3.3525.867 1.4011 1.301 2.9523 1.301 4.6536 0 1.9681-.551 3.636-1.651 5.0037-1.068 1.3344-2.402 2.235-4.004 2.7021 1.969.4003 3.57 1.3677 4.804 2.9022 1.234 1.5011 1.852 3.4025 1.852 5.7043 0 1.9347-.468 3.7028-1.402 5.304-.934 1.6012-2.301 2.8855-4.103 3.8529-1.768.9674-3.953 1.4511-6.555 1.4511Z"
+      fill="#00DC82"></path>
+  </g>
+  <defs>
+    <clipPath id="a">
+      <path fill="#fff" d="M0 0h221v65H0z"></path>
+    </clipPath>
+  </defs>
+</svg>