Files
grain/vite.config.ts
Ryan Walters e632e69b91 feat: migrate from React to Preact, add Vitest testing, and optimize bundle
Major framework and tooling changes:
- Migrate from React 19 to Preact 10 with preact-iso for routing
- Replace @mantine/hooks with custom hooks (useBooleanToggle, useViewportSize)
- Switch from @heroicons/react to lucide-preact for icons
- Replace chance.js with random-js for RNG

Testing infrastructure:
- Add Vitest with @testing-library/preact and happy-dom
- Set up test configuration and initial App tests
- Add Vitest UI for interactive test running

Build optimizations:
- Add cssnano for CSS minification
- Configure aggressive bundle optimizations in Vite
- Update to Tailwind CSS 4.1.17

Project structure:
- Consolidate entry point from main.tsx to index.tsx
- Reorganize CSS location (styles/index.css → index.css)
- Add ESLint with preact config
- Update TypeScript configuration for Preact
2025-11-06 21:56:53 -06:00

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836 B
TypeScript

import { defineConfig, loadEnv } from "vite";
import preact from "@preact/preset-vite";
import tailwindcss from "@tailwindcss/vite";
import { visualizer } from "rollup-plugin-visualizer";
import cssnano from "cssnano";
// https://vitejs.dev/config/
export default ({ mode }) => {
process.env = { ...process.env, ...loadEnv(mode, process.cwd()) };
return defineConfig({
base: "/",
plugins: [
preact({
prerender: {
enabled: true,
renderTarget: "#root",
},
}),
tailwindcss(),
visualizer({
template: "treemap",
open: true, // Automatically open the report in your browser after build
filename: "stats.html", // Output file name
gzipSize: true, // Show gzip size
brotliSize: true, // Show brotli size
}),
],
});
};