From bf92d4a6778509c038dd09f8358fdc07691d76ee Mon Sep 17 00:00:00 2001
From: Romuald Brillout <git@brillout.com>
Date: Sun, 1 Dec 2024 11:06:41 +0100
Subject: [PATCH] wip

---
 test/playground/vite.config.ts                       |  3 ++-
 vike/node/plugin/plugins/buildConfig.ts              |  2 ++
 .../plugin/plugins/buildConfig/fixServerAssets.ts    | 12 ++++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/test/playground/vite.config.ts b/test/playground/vite.config.ts
index b0135cb2705..ead5e70afd8 100644
--- a/test/playground/vite.config.ts
+++ b/test/playground/vite.config.ts
@@ -5,7 +5,8 @@ export default {
   // TEST: funky build output directory
   build: {
     outDir: `${__dirname}/../../test/playground/dist/nested`,
-    assetsDir: '/nested-dir/assets'
+    assetsDir: '/nested-dir/assets',
+    cssCodeSplit: false
   },
   plugins: [
     react(),
diff --git a/vike/node/plugin/plugins/buildConfig.ts b/vike/node/plugin/plugins/buildConfig.ts
index 1d62a68b3f4..fc621805458 100644
--- a/vike/node/plugin/plugins/buildConfig.ts
+++ b/vike/node/plugin/plugins/buildConfig.ts
@@ -31,6 +31,7 @@ import fs from 'fs/promises'
 import path from 'path'
 import {
   fixServerAssets,
+  fixServerAssets_assertCssCodeSplit,
   fixServerAssets_assertCssTarget,
   fixServerAssets_assertCssTarget_populate,
   fixServerAssets_isEnabled
@@ -73,6 +74,7 @@ function buildConfig(): Plugin[] {
               // Required if `ssrEmitAssets: true`, see https://github.com/vitejs/vite/pull/11430#issuecomment-1454800934
               config.build.cssMinify = 'esbuild'
               fixServerAssets_assertCssTarget_populate(config)
+              fixServerAssets_assertCssCodeSplit(config)
             }
           }
         }
diff --git a/vike/node/plugin/plugins/buildConfig/fixServerAssets.ts b/vike/node/plugin/plugins/buildConfig/fixServerAssets.ts
index 875c59cbdc9..555d82f16fc 100644
--- a/vike/node/plugin/plugins/buildConfig/fixServerAssets.ts
+++ b/vike/node/plugin/plugins/buildConfig/fixServerAssets.ts
@@ -1,5 +1,6 @@
 export { fixServerAssets }
 export { fixServerAssets_isEnabled }
+export { fixServerAssets_assertCssCodeSplit }
 export { fixServerAssets_assertCssTarget }
 export { fixServerAssets_assertCssTarget_populate }
 
@@ -191,6 +192,17 @@ function getHash(src: string) {
   return hash
 }
 
+// https://github.com/vikejs/vike/issues/1993
+function fixServerAssets_assertCssCodeSplit(config: ResolvedConfig) {
+  assertWarning(
+    config.build.cssCodeSplit,
+    `${pc.cyan('build.cssCodeSplit')} shouldn't be set to ${pc.cyan(
+      'false'
+    )} (https://github.com/vikejs/vike/issues/1993)`,
+    { onlyOnce: true }
+  )
+}
+
 // https://github.com/vikejs/vike/issues/1815
 type Target = undefined | false | string | string[]
 type TargetConfig = { global: Exclude<Target, undefined>; css: Target; isServerSide: boolean }