update vite plugin to preserve special file

ui/package.json

@@ -50,6 +50,7 @@
     "zod": "^3.23.8"
   },
   "devDependencies": {
+    "@types/fs-extra": "^11.0.4",
     "@types/node": "^22.0.0",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
@@ -62,6 +63,7 @@
     "eslint-plugin-prettier": "^5.2.1",
     "eslint-plugin-react-hooks": "^4.6.2",
     "eslint-plugin-react-refresh": "^0.4.7",
+    "fs-extra": "^11.2.0",
     "postcss": "^8.4.40",
     "prettier": "^3.3.3",
     "tailwindcss": "^3.4.7",

ui/vite.config.ts

@@ -1,9 +1,38 @@
 import path from "path";
 import react from "@vitejs/plugin-react";
-import { defineConfig } from "vite";
+import { defineConfig, Plugin } from "vite";
+
+import fs from "fs-extra";
+
+const preserveFilesPlugin = (filesToPreserve: string[]): Plugin => {
+  return {
+    name: "preserve-files",
+    apply: "build",
+    buildStart() {
+      // 在构建开始时将要保留的文件或目录移动到临时位置
+      filesToPreserve.forEach((file) => {
+        const srcPath = path.resolve(__dirname, file);
+        const tempPath = path.resolve(__dirname, `temp_${file}`);
+        if (fs.existsSync(srcPath)) {
+          fs.moveSync(srcPath, tempPath, { overwrite: true });
+        }
+      });
+    },
+    closeBundle() {
+      // 在构建完成后将临时位置的文件或目录移回原来的位置
+      filesToPreserve.forEach((file) => {
+        const srcPath = path.resolve(__dirname, file);
+        const tempPath = path.resolve(__dirname, `temp_${file}`);
+        if (fs.existsSync(tempPath)) {
+          fs.moveSync(tempPath, srcPath, { overwrite: true });
+        }
+      });
+    },
+  };
+};
 
 export default defineConfig({
-  plugins: [react()],
+  plugins: [react(), preserveFilesPlugin(["dist/.gitkeep"])],
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),