fix(react): turn off Rolldown's module-level directive warnings

.changeset/quiet-use-client-warnings.md

@@ -0,0 +1,5 @@
+---
+'@doc-kit/generator-react': patch
+---
+
+Stop the Vite builds from warning about every `"use client"` directive in dependencies

packages/react/src/html/bundlers/__tests__/vite.test.mjs

@@ -84,6 +84,30 @@ describe('Vite configuration', () => {
     assert.strictEqual(config.build.manifest, 'manifest.json');
   });
 
+  it("leaves out module-level directive warnings unless they're asked for", () => {
+    /**
+     * @param {import('vite').UserConfig} [vite]
+     */
+    const checksFor = vite =>
+      createViteConfig({
+        sources: new Map(),
+        input: {},
+        server: false,
+        outDir: output,
+        config: getConfig('html'),
+        vite,
+      }).build.rolldownOptions.checks;
+
+    assert.deepStrictEqual(checksFor(), { moduleLevelDirective: false });
+
+    const checks = { moduleLevelDirective: true, eval: false };
+
+    assert.deepStrictEqual(
+      checksFor({ build: { rolldownOptions: { checks } } }),
+      checks
+    );
+  });
+
   it('keeps the server library self-contained', () => {
     const vite = {
       ssr: {

packages/react/src/html/bundlers/vite.mjs

@@ -230,6 +230,15 @@ export const createViteConfig = ({
         ...vite.build?.rolldownOptions,
         input,
         ...(server ? { external: [] } : {}),
+
+        // Dependencies' `"use client"` directives are for React Server
+        // Components, which bundling drops and this site doesn't use. See
+        // https://rolldown.rs/in-depth/directives#other-directives
+        checks: {
+          moduleLevelDirective: false,
+          ...vite.build?.rolldownOptions?.checks,
+        },
+
         output: {
           ...vite.build?.rolldownOptions?.output,
           format: 'es',