fix: crawl local workspace private packages devDependencies

.changeset/old-peaches-refuse.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/vite-plugin-svelte': patch
+---
+
+fix: crawl local workspace private packages devDependencies for generating vite config ssr.noExternal

packages/e2e-tests/_test_dependencies/svelte-nested-workspace-devdep/package.json

@@ -0,0 +1,24 @@
+{
+  "version": "1.0.0",
+  "private": true,
+  "name": "e2e-test-dep-svelte-nested-workspace-devdep",
+  "svelte": "src/index.js",
+  "main": "src/index.js",
+  "type": "module",
+  "files": [
+    "src"
+  ],
+  "exports": {
+    "./package.json": "./package.json",
+    ".": {
+      "import": {
+        "svelte": "./src/index.js"
+      }
+    }
+  },
+  "devDependencies": {
+    "e2e-test-dep-svelte-simple": "workspace:*",
+    "e2e-test-dep-cjs-and-esm": "workspace:*",
+    "e2e-test-dep-scss-only": "workspace:*"
+  }
+}

packages/e2e-tests/_test_dependencies/svelte-nested-workspace-devdep/src/components/Message.svelte

@@ -0,0 +1,9 @@
+<script>
+	export let id = 'id';
+	export let message = '';
+	import { cjs_and_esm } from 'e2e-test-dep-cjs-and-esm';
+	import 'e2e-test-dep-scss-only';
+</script>
+
+<div {id}>{message}</div>
+<div id="cjs-and-esm">{cjs_and_esm()}</div>

packages/e2e-tests/_test_dependencies/svelte-nested-workspace-devdep/src/index.js

@@ -0,0 +1,2 @@
+import Message from './components/Message.svelte';
+export { Message };

packages/e2e-tests/kit-node/__tests__/kit.spec.ts

@@ -292,7 +292,10 @@ describe('kit-node', () => {
 								'cli-color',
 								'tiny-glob',
 								'cookie',
-								'set-cookie-parser'
+								'set-cookie-parser',
+								'e2e-test-dep-cjs-and-esm',
+								'e2e-test-dep-cjs-only',
+								'e2e-test-dep-scss-only'
 							]
 						: [],
 					`ssr.external in ${filename}`
@@ -307,13 +310,22 @@ describe('kit-node', () => {
 						'esm-env', // first added by svelte-kit
 						'esm-env', // second added by vite-plugin-svelte
 						'@sveltejs/kit',
-						'@sveltejs/adapter-node'
+						'@sveltejs/adapter-node',
+						'e2e-test-dep-svelte-nested-workspace-devdep',
+						'e2e-test-dep-svelte-simple'
 					],
 					`ssr.noExternal in ${filename}`
 				);
+				const expectedExcludes = ['@sveltejs/kit', '$app', '$env'];
+				if (!isServe) {
+					expectedExcludes.push(
+						'e2e-test-dep-svelte-nested-workspace-devdep',
+						'e2e-test-dep-svelte-simple'
+					);
+				}
 				expectArrayEqual(
 					config.optimizeDeps.exclude,
-					['@sveltejs/kit', '$app', '$env'],
+					expectedExcludes,
 					`optimizeDeps.exclude in ${filename}`
 				);
 				let expectedIncludes = [
@@ -345,6 +357,12 @@ describe('kit-node', () => {
 					(item) => !(isServe && item.startsWith('svelte-i18n >'))
 				);
 
+				if (!isServe) {
+					expectedIncludes.push(
+						'e2e-test-dep-svelte-nested-workspace-devdep > e2e-test-dep-svelte-simple > e2e-test-dep-cjs-only'
+					);
+				}
+
 				expectArrayEqual(
 					config.optimizeDeps.include,
 					expectedIncludes,

packages/e2e-tests/kit-node/package.json

@@ -17,6 +17,7 @@
     "@sveltejs/vite-plugin-svelte": "workspace:^",
     "e2e-test-dep-svelte-api-only": "file:../_test_dependencies/svelte-api-only",
     "e2e-test-dep-vite-plugins": "file:../_test_dependencies/vite-plugins",
+    "e2e-test-dep-svelte-nested-workspace-devdep": "workspace:*",
     "svelte": "^5.34.9",
     "svelte-check": "^4.2.2",
     "svelte-i18n": "^4.0.1",

packages/vite-plugin-svelte/package.json

@@ -44,7 +44,7 @@
     "deepmerge": "^4.3.1",
     "kleur": "^4.1.5",
     "magic-string": "^0.30.17",
-    "vitefu": "^1.0.7"
+    "vitefu": "^1.1.0"
   },
   "peerDependencies": {
     "svelte": "^5.0.0",

packages/vite-plugin-svelte/src/utils/options.js

@@ -5,7 +5,8 @@ const {
 	defaultServerMainFields,
 	defaultClientConditions,
 	defaultServerConditions,
-	normalizePath
+	normalizePath,
+	searchForWorkspaceRoot
 } = vite;
 import { log } from './log.js';
 import { loadSvelteConfig } from './load-svelte-config.js';
@@ -429,6 +430,7 @@ async function buildExtraConfigForDependencies(options, config) {
 	const packagesWithoutSvelteExportsCondition = new Set();
 	const depsConfig = await crawlFrameworkPkgs({
 		root: options.root,
+		workspaceRoot: searchForWorkspaceRoot(options.root),
 		isBuild: options.isBuild,
 		viteUserConfig: config,
 		isFrameworkPkgByJson(pkgJson) {