test(code-split): code split optimization

build/vite/optimizer.ts

@@ -0,0 +1,20 @@
+import type { GetManualChunk, GetManualChunkApi } from 'rollup';
+
+//
+const vendorLibs: { match: string[]; output: string }[] = [
+  {
+    match: ['xlsx'],
+    output: 'xlsx',
+  },
+];
+
+// @ts-ignore
+export const configManualChunk: GetManualChunk = (id: string, api: GetManualChunkApi) => {
+  if (/[\\/]node_modules[\\/]/.test(id)) {
+    const matchItem = vendorLibs.find((item) => {
+      const reg = new RegExp(`[\\/]node_modules[\\/]_?(${item.match.join('|')})(.*)`, 'ig');
+      return reg.test(id);
+    });
+    return matchItem ? matchItem.output : null;
+  }
+};