besure_web/vite.config.ts

import {resolve} from 'path'
import type {ConfigEnv, UserConfig} from 'vite'
import {loadEnv} from 'vite'
import {createVitePlugins} from './build/vite'
import {exclude, include} from "./build/vite/optimize"
// 当前执行node命令时文件夹的地址(工作目录)
const root = process.cwd()

// 路径查找
function pathResolve(dir: string) {
    return resolve(root, '.', dir)
}

// https://vitejs.dev/config/
export default ({command, mode}: ConfigEnv): UserConfig => {
    let env = {} as any
    const isBuild = command === 'build'
    if (!isBuild) {
        env = loadEnv((process.argv[3] === '--mode' ? process.argv[4] : process.argv[3]), root)
    } else {
        env = loadEnv(mode, root)
    }

    // 打包时需要移除的语句（drop_console / drop_debugger）
    const esbuildDrop: ('console' | 'debugger')[] = []
    if (env.VITE_DROP_CONSOLE === 'true') esbuildDrop.push('console')
    if (env.VITE_DROP_DEBUGGER === 'true') esbuildDrop.push('debugger')

    return {
        base: env.VITE_BASE_PATH,
        root: root,
        // 服务端渲染
        server: {
            port: env.VITE_PORT, // 端口号
            host: "0.0.0.0",
            open: env.VITE_OPEN === 'true',
            // 本地跨域代理. 目前注释的原因：暂时没有用途，server 端已经支持跨域
            proxy: {
              ['/admin-api']: {
                target: env.VITE_BASE_URL,
                ws: false,
                changeOrigin: true,
                rewrite: (path) => path.replace(new RegExp(`^/admin-api`), ''),
              },
            },
        },
        // 项目使用的vite插件。 单独提取到build/vite/plugin中管理
        plugins: createVitePlugins(isBuild),
        css: {
            preprocessorOptions: {
                scss: {
                    additionalData: '@use "@/styles/variables.scss" as *;',
                    javascriptEnabled: true,
                    silenceDeprecations: ["legacy-js-api"], // 参考自 https://stackoverflow.com/questions/78997907/the-legacy-js-api-is-deprecated-and-will-be-removed-in-dart-sass-2-0-0
                }
            }
        },
        resolve: {
            extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json', '.scss', '.css'],
            alias: [
                {
                    find: 'vue-i18n',
                    replacement: 'vue-i18n/dist/vue-i18n.cjs.js'
                },
                {
                    find: /\@\//,
                    replacement: `${pathResolve('src')}/`
                }
            ]
        },
        // 使用 esbuild 压缩，速度远快于 terser；drop 用于移除 console / debugger
        esbuild: {
            drop: esbuildDrop
        },
        build: {
            minify: 'esbuild',
            outDir: env.VITE_OUT_DIR || 'dist',
            sourcemap: env.VITE_SOURCEMAP === 'true' ? 'inline' : false,
            // brotliSize: false,
            // 提高 chunk 体积告警阈值，避免大量无意义警告
            chunkSizeWarningLimit: 2000,
            rollupOptions: {
                output: {
                    // 将体积较大的第三方依赖拆分为独立 chunk，避免全部打进入口主 chunk 导致首屏阻塞
                    manualChunks(id: string) {
                        if (!id.includes('node_modules')) {
                            return
                        }
                        // 打印插件（体积最大，内含 jQuery 等），单独拆分
                        if (id.includes('vue-plugin-hiprint')) {
                            return 'hiprint'
                        }
                        // 表单设计器 / 表单渲染
                        if (id.includes('@form-create')) {
                            return 'form-create'
                        }
                        // 富文本编辑器
                        if (id.includes('@wangeditor')) {
                            return 'wangeditor'
                        }
                        // 图表库（含词云、底层 zrender）
                        if (id.includes('echarts') || id.includes('zrender')) {
                            return 'echarts'
                        }
                        // 图片裁剪
                        if (id.includes('cropperjs')) {
                            return 'cropperjs'
                        }
                        // Element Plus 组件库
                        if (id.includes('element-plus') || id.includes('@element-plus')) {
                            return 'element-plus'
                        }
                        // Vue 全家桶
                        if (
                            id.includes('/vue/') ||
                            id.includes('/vue-router/') ||
                            id.includes('/@vue/') ||
                            id.includes('/pinia/') ||
                            id.includes('/vue-i18n/') ||
                            id.includes('/@intlify/')
                        ) {
                            return 'vue'
                        }
                    }
                },
            },
        },
        optimizeDeps: {include, exclude}
    }
}