vite: config.js instead of .env files

vite.config.js

import { fileURLToPath } from "node:url";
import { defineConfig } from 'vite'
import { resolve } from 'path'
import { viteStaticCopy } from 'vite-plugin-static-copy'
import vue from '@vitejs/plugin-vue'
import path from 'path'

const filesNeedToExclude = ['config.js']

const filesPathToExclude = filesNeedToExclude.map((src) => {
    return fileURLToPath(new URL(src, import.meta.url))
})

export default defineConfig(() => {
    return {
        base: './',
        build: {
            rollupOptions: {
                external: [...filesPathToExclude]
            }
        }
        plugins: [
            vue(),
            viteStaticCopy({
                targets: [
                    {
                        src: path.resolve(__dirname, './config.js'),
                        dest: './'
                    }
                ]
            })
        ],
        resolve: {
            alias: {
                '@': resolve(__dirname, 'src/')
            }
        }
    }
});