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vite.config.ts
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vite.config.ts
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import { defineConfig } from 'vitest/config';
import { splitVendorChunkPlugin } from 'vite';
import react from '@vitejs/plugin-react';
import { fileURLToPath } from 'node:url';
import { visualizer } from 'rollup-plugin-visualizer';
const VISUALIZER = false; // change to see the current bundle.
// https://vitejs.dev/config/
export default defineConfig({
plugins: [
react(),
/**
* See more here: https://vitejs.dev/guide/build.html#chunking-strategy
*/
splitVendorChunkPlugin(),
/**
* See more here: https://www.npmjs.com/package/rollup-plugin-visualizer
*/
// @ts-ignore
VISUALIZER &&
visualizer({
open: true,
gzipSize: true,
filename: 'chunks-report.html',
}),
],
test: {
globals: true,
environment: 'jsdom',
setupFiles: ['./tests/setup.ts'],
alias: {
'@': fileURLToPath(new URL('./src', import.meta.url)),
},
watch: false,
coverage: {
provider: 'istanbul',
reporter: ['html'],
},
},
server: {
port: 3000,
open: true,
},
build: {
sourcemap: true,
outDir: './build',
rollupOptions: {
output: {
manualChunks(id: string) {
// creating a chunk to @open-ish deps. Reducing the vendor chunk size
if (id.includes('@open-ish') || id.includes('tslib')) {
return '@open-ish';
}
// creating a chunk to react routes deps. Reducing the vendor chunk size
if (
id.includes('react-router-dom') ||
id.includes('@remix-run') ||
id.includes('react-router')
) {
return '@react-router';
}
},
},
},
},
resolve: {
extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json'],
alias: {
'@': fileURLToPath(new URL('./src', import.meta.url)),
},
},
});