NestJs和Vite使用monorepo管理项目中,需要使用共享的文件夹步骤

1 首先需要将nest-cli打包的功能通过webpack接管

nest-cli.json文件内容

{
  "$schema": "https://json.schemastore.org/nest-cli",
  "collection": "@nestjs/schematics",
  "sourceRoot": "src",
  "compilerOptions": {
    "webpack": true,
    "deleteOutDir": true,
    "tsConfigPath": "./tsconfig.build.json"
  }
}

根目录创建webpack.config.js文件. 使用nest-cli创建项目时, 已经安装了webpack的基本模块,因此可以直接使用

文件内容, 就按照下面的内容进行修改即可

const path = require("path")
const webpack = require("webpack")
const CopyPlugin = require("copy-webpack-plugin")

const sharedDirPath = path.resolve(__dirname, "../shared")
module.exports = {
  entry: "./src/main.ts",
  watch: true,
  target: "node",
  module: {
    rules: [
      {
        test: /\.ts?$/,
        use: "ts-loader",
        exclude: /node_modules/
      }
    ]
  },
  mode: "development",
  resolve: {
    extensions: [".tsx", ".ts", ".js"],
    alias: {
      "@shared": sharedDirPath
    }
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new CopyPlugin({
      patterns: [
        {
          from: sharedDirPath,
          to: "shared"
        }
      ]
    })
  ],
  output: {
    path: path.join(__dirname, "dist"),
    filename: "main.js"
  }
}

注意copy-webpack-plugin的版本需要指定, 这里webpack的版本是5.73.0安装copy-webpack-plugin@9.1.0即可
pnpm add copy-webpack-plugin@9.1.0 -D, 不然会出现奇奇怪怪的问题