Fix Vite 8/Rolldown support and add cross-version compatibility coverage

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 8.15.9
+
+      - uses: actions/setup-node@v4
+        with:
+          cache: pnpm
+          node-version: 20
+
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm test
+      - run: pnpm build
+
+  compatibility:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 8.15.9
+
+      - uses: actions/setup-node@v4
+        with:
+          cache: pnpm
+          node-version: 20
+
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm build
+      - run: pnpm test:matrix

README.md

@@ -31,6 +31,10 @@ export default defineConfig({
 })
 ```
 
+The plugin externalizes matching imports during build resolution, so it can be used alongside your own `build.rollupOptions.external` entries.
+
+This repo verifies compatibility across Vite 2 through 8 with the `pnpm test:matrix` suite.
+
 ### Configuration
 
 Pass an object to `externalizeDeps` to override the default configuration.
@@ -41,6 +45,7 @@ externalizeDeps({
   deps: true,
   devDeps: false,
   except: [],
+  include: [],
   nodeBuiltins: true,
   optionalDeps: true,
   peerDeps: true,

package.json

@@ -30,19 +30,18 @@
   },
   "scripts": {
     "build": "vite build && tsc",
-    "test": "vite build -c test/vite.config.ts"
+    "test": "vitest run",
+    "test:matrix": "node ./test/compatibility-matrix.mjs"
   },
   "packageManager": "pnpm@8.15.9+sha512.499434c9d8fdd1a2794ebf4552b3b25c0a633abcee5bb15e7b5de90f32f47b513aca98cd5cfd001c31f0db454bc3804edccd578501e4ca293a6816166bbd9f81",
   "devDependencies": {
-    "@rollup/plugin-node-resolve": "^16.0.1",
     "@types/node": "^22.16.0",
     "typescript": "^5.8.3",
-    "vite": "^7.0.3",
-    "vite-plugin-externalize-deps": "^0.9.0",
-    "vite-plugin-inspect": "^11.3.0"
+    "vite": "^8.0.2",
+    "vitest": "^4.1.0"
   },
   "peerDependencies": {
-    "vite": "^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0"
+    "vite": "^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0"
   },
   "publishConfig": {
     "access": "public"