vite.config.js

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import cesium from 'vite-plugin-cesium'
import path from 'path'
// https://vitejs.dev/config/
export default defineConfig({
  plugins: [vue(), cesium()],
  resolve: {
    alias: {
      '@': path.resolve(__dirname, 'src')
    }
  },
  base: '/webgis-demo/',
  build: {
    emptyOutDir: true,
    sourcemap: false,
    assetsInlineLimit: 0,
    chunkSizeWarningLimit: 1500,
    rollupOptions: {
      output: {
        manualChunks(id) {
          if (id.includes('node_modules')) {
            const arr = id.toString().split('node_modules/')[1].split('/')
            switch (arr[0]) {
              case '@vue':
              case 'three':
                return `${arr[0]}`
              default:
                return 'vendor'
            }
          }
          return true
        },
        chunkFileNames: chunkInfo => {
          const facadeModuleId = chunkInfo.facadeModuleId
            ? chunkInfo.facadeModuleId.split('/')
            : []
          const fileName = facadeModuleId[facadeModuleId.length - 2] || '[name]'
          return `assets/${fileName}/[name].[hash].js`
        }
      }
    }
  }
})