vite.config.ts

import path from "node:path"
import dayjs from "dayjs"
import { defineConfig, loadEnv } from "vite"
import Uni from "@dcloudio/vite-plugin-uni"
import UniLayouts from "@uni-helper/vite-plugin-uni-layouts"
import UniPlatform from "@uni-helper/vite-plugin-uni-platform"
import UniManifest from "@uni-helper/vite-plugin-uni-manifest"
import UnoCSS from "unocss/vite"
import AutoImport from "unplugin-auto-import/vite"
import { visualizer } from "rollup-plugin-visualizer"
import ViteRestart from "vite-plugin-restart"
export default ({ command, mode }) => {
  console.log("command, mode -> ", command, mode)

  const { UNI_PLATFORM } = process.env
  console.log("UNI_PLATFORM -> ", UNI_PLATFORM) // 得到 mp-weixin, h5, app 等

  const env = loadEnv(mode, path.resolve(process.cwd(), "env"))
  const {
    VITE_APP_PORT,
    VITE_SERVER_BASEURL,
    VITE_DELETE_CONSOLE,
    VITE_SHOW_SOURCEMAP,
    VITE_APP_PROXY,
    VITE_APP_PROXY_PREFIX,
  } = env
  console.log("环境变量 env -> ", env)

  return defineConfig({
    envDir: "./env", // 自定义env目录

    plugins: [
      UniLayouts(),
      UniPlatform(),
      UniManifest(),
      Uni(),
      {
        name: "fix-vite-plugin-vue",
        configResolved(config) {
          const plugin = config.plugins.find((p) => p.name === "vite:vue")
          if (plugin && plugin.api && plugin.api.options) {
            plugin.api.options.devToolsEnabled = false
          }
        },
      },
      UnoCSS(),
      AutoImport({
        imports: ["vue", "uni-app"],
        dts: "src/types/auto-import.d.ts",
        dirs: ["src/hooks"], // 自动导入 hooks
        eslintrc: { enabled: true },
        vueTemplate: true, // default false
      }),

      ViteRestart({
        // 通过这个插件，在修改vite.config.js文件则不需要重新运行也生效配置
        restart: ["vite.config.js"],
      }),
      // h5环境增加编译时间
      UNI_PLATFORM === "h5" && {
        name: "html-transform",
        transformIndexHtml(html) {
          return html.replace("%BUILD_DATE%", dayjs().format("YYYY-MM-DD HH:mm:ss"))
        },
      },
      // 打包分析插件，h5 + 生产环境才弹出
      UNI_PLATFORM === "h5" &&
        mode === "production" &&
        visualizer({
          filename: "./node_modules/.cache/visualizer/stats.html",
          open: true,
          gzipSize: true,
          brotliSize: true,
        }),
    ],
    define: {
      __UNI_PLATFORM__: JSON.stringify(UNI_PLATFORM),
      __VITE_APP_PROXY__: JSON.stringify(VITE_APP_PROXY),
    },
    css: {
      postcss: {
        plugins: [],
      },
    },

    resolve: {
      alias: {
        "@": path.join(process.cwd(), "./src"),
        "@img": path.join(process.cwd(), "./src/static/images"),
      },
    },
    server: {
      host: "0.0.0.0",
      hmr: true,
      port: Number.parseInt(VITE_APP_PORT, 10),
      // 仅 H5 端生效，其他端不生效（其他端走build，不走devServer)
      proxy: JSON.parse(VITE_APP_PROXY)
        ? {
            [VITE_APP_PROXY_PREFIX]: {
              target: VITE_SERVER_BASEURL,
              changeOrigin: true,
              rewrite: (path) => path.replace(new RegExp(`^${VITE_APP_PROXY_PREFIX}`), ""),
            },
          }
        : undefined,
    },
    build: {
      // 方便非h5端调试
      sourcemap: VITE_SHOW_SOURCEMAP === "true", // 默认是false
      target: "es6",
      // 开发环境不用压缩
      minify: mode === "development" ? false : "terser",
      terserOptions: {
        compress: {
          drop_console: VITE_DELETE_CONSOLE === "true",
          drop_debugger: true,
        },
      },
    },
  })
}