【問題解決】在使用vite時如何在保持原目錄結構前提下執行vite

寫專案時遇到的了問題：vite預設將所有模組合併到主程序入口檔案中，導致一些ts模組無法透過路徑找到，而簡單的使用external又會導致這些ts模組無法轉換為js。

解決方法：

// vite.config.ts
vite: {
    build: {
        output:{
                  preserveModules: true // 將此項置為true
                }
    }
}

我使用的electron-vite-vue框架，如果遇到同樣的問題的話可以參考我的配置檔案

// vite.config.ts
import { defineConfig } from 'vite';
import fs from 'node:fs';
import path from 'node:path';
import vue from '@vitejs/plugin-vue';
import electron from 'vite-plugin-electron/simple';
import pkg from './package.json';



export default defineConfig(({ command }) => {
  fs.rmSync('dist-main', { recursive: true, force: true })

  const isServe = command === 'serve'
  const isBuild = command === 'build'
  const sourcemap = isServe || !!process.env.VSCODE_DEBUG


  return {
    plugins: [
      vue(),
      electron({
        main: {
          // Shortcut of `build.lib.entry`
          entry: 'main/main/index.ts',
          onstart({ startup }) {
            if (process.env.VSCODE_DEBUG) {
              console.log(/* For `.vscode/.debug.script.mjs` */'[startup] Electron App')
            } else {
              startup()
            }
          },
          vite: {
            build: {
              sourcemap,
              minify: isBuild,
              outDir: 'dist-main',
              rollupOptions: {
                // Some third-party Node.js libraries may not be built correctly by Vite, especially `C/C++` addons, 
                // we can use `external` to exclude them to ensure they work correctly.
                // Others need to put them in `dependencies` to ensure they are collected into `app.asar` after the app is built.
                // Of course, this is not absolute, just this way is relatively simple. :)
                output:{
                  preserveModules: true // 這裡是解決的關鍵
                },
                external: [
                    ...Object.keys('dependencies' in pkg ? pkg.dependencies : {}),
                    path.resolve(__dirname, 'main/common/**')
                ]
              },
            },
          },
        },
        preload: {
          // Shortcut of `build.rollupOptions.input`.
          // Preload scripts may contain Web assets, so use the `build.rollupOptions.input` instead `build.lib.entry`.
          input: 'main/preload/index.ts',
          vite: {
            build: {
              sourcemap: sourcemap ? 'inline' : undefined, // #332
              minify: isBuild,
              outDir: 'dist-main/preload',
              rollupOptions: {
                external: Object.keys('dependencies' in pkg ? pkg.dependencies : {}),
              },
            },
          },
        },
        // Ployfill the Electron and Node.js API for Renderer process.
        // If you want use Node.js in Renderer process, the `nodeIntegration` needs to be enabled in the Main process.
        // See 👉 https://github.com/electron-vite/vite-plugin-electron-renderer
        renderer: {},
      }),
    ],
    server: process.env.VSCODE_DEBUG && (() => {
      const url = new URL(pkg.debug.env.VITE_DEV_SERVER_URL)
      return {
        host: url.hostname,
        port: +url.port,
      }
    })(),
    clearScreen: false,
  }
})

參考文件：https://www.rollupjs.com/configuration-options/