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								const path = require("path");
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								const CompressionPlugin = require("compression-webpack-plugin");
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								const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
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								const resolve = dir => {
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								  return path.join(__dirname, dir);
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								};
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											2021-11-18 17:10:44 +08:00
										 
									 
								 
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								const configs = require('./src/config')
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								/**
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								 | 
							
							
								 * 在项目开发的时候将生产环境以及开发环境进行判断
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								 * 将生产环境中的路径用cdn来进行优化处理
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								 * 将开发环境中替换为本地的内容,方便处理bug以及开启vueDev
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								 * 我们可以根据环境变量进行相应的处理,只有在产品的时候,才让插件去自动注入相应的资源文件到html页面
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								 */
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											2021-12-21 16:30:54 +08:00
										 
									 
								 
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								const enableProduction = process.env.NODE_ENV === "production"; // 是否生产环境
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								let externals = {
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								  vue: "Vue",
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								  axios: "axios",
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								  "vue-router": "VueRouter",
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								  vuex: "Vuex",
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								  "view-design": "iview",
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								  "js-cookie": "Cookies"
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								};
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								// 使用CDN的内容
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								let cdn = {
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											2022-05-19 15:51:32 +08:00
										 
									 
								 
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								  css: ["https://cdn.pickmall.cn/cdn/iview.css"],
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								  js: [
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								    // vue must at first!
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											2022-05-19 15:51:32 +08:00
										 
									 
								 
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								    "https://cdn.pickmall.cn/cdn/vue.min.js",
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								    "https://cdn.pickmall.cn/cdn/vuex.min.js",
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								    "https://cdn.pickmall.cn/cdn/vue-router.min.js",
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											2022-05-20 15:42:23 +08:00
										 
									 
								 
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								    "https://cdn.pickmall.cn/cdn/axios0.19.2.js",
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											2022-05-19 15:51:32 +08:00
										 
									 
								 
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								    "https://cdn.pickmall.cn/cdn/iview.min.js",
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								    "https://cdn.pickmall.cn/cdn/js.cookie.min.js",
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								  ]
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								};
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								// 删除注释
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								let jsPlugin = [
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								  new UglifyJsPlugin({
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								    uglifyOptions: {
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								      // 删除注释
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								      output: {
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								        comments: false
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								      },
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								      compress: {
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								        drop_console: true, // 删除所有调式带有console的
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								        drop_debugger: true,
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								        pure_funcs: ["console.log"] // 删除console.log
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								      }
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								    }
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								  })
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								];
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								// 判断是否需要加载CDN
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											2021-12-21 16:30:54 +08:00
										 
									 
								 
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								cdn = enableProduction && configs.enableCDN ? cdn : { css: [], js: [] };
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								externals = enableProduction && configs.enableCDN  ? externals : {};
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								jsPlugin = enableProduction ? jsPlugin : [];
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											2021-05-13 10:56:04 +08:00
										 
									 
								 
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								module.exports = {
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								  // 输出文件目录,当运行 vue-cli-service build 时生成的生产环境构建文件的目录。注意目标目录在构建之前会被清除
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								  outputDir: "dist",
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								 | 
							
							
								  // 放置生成的静态资源 (js、css、img、fonts) 的目录。
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								 | 
							
							
								  assetsDir: "static",
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								  css: {
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								    // 是否为 CSS 开启 source map。设置为 true 之后可能会影响构建的性能。
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								 | 
							
							
								    sourceMap: false,
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								    loaderOptions: {
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								 | 
							
							
								      sass: {
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								 | 
							
							
								        data: `@import "@/assets/styles/global.scss";` //全局加载scss
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								      },
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								 | 
							
							
								      // 向 CSS 相关的 loader 传递选项
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								 | 
							
							
								      less: {
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								        lessOptions: {
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								          javascriptEnabled: true
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								        }
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								      }
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								 | 
							
							
								    }
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								  },
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								 | 
							
							
								  devServer: {
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											2021-12-21 16:30:54 +08:00
										 
									 
								 
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								 | 
							
							
								    port: configs.port
							 | 
						
					
						
							
								
									
										
										
										
											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								  },
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								  // 打包时不生成.map文件 避免看到源码
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								 | 
							
							
								  productionSourceMap: false,
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								  // 部署优化
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								 | 
							
							
								  configureWebpack: {
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								 | 
							
							
								    performance: {
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								 | 
							
							
								      maxEntrypointSize: 10000000,
							 | 
						
					
						
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								 | 
							
							
								      maxAssetSize: 30000000
							 | 
						
					
						
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								 | 
							
							
								    },
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								 | 
							
							
								    externals,
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								 | 
							
							
								    // GZIP压缩
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								 | 
							
							
								    plugins: [
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							 | 
							
								
									
								 | 
							
							
								      new CompressionPlugin({
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							 | 
							
								
									
								 | 
							
							
								        test: /\.js$|\.html$|\.css/, // 匹配文件
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								 | 
							
							
								        threshold: 10240 // 对超过10k文件压缩
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								 | 
							
							
								      })
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								    ],
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								 | 
							
							
								    optimization: {
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								 | 
							
							
								      minimizer: jsPlugin,
							 | 
						
					
						
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								 | 
							
							
								      runtimeChunk: "single",
							 | 
						
					
						
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							 | 
							
								
									
								 | 
							
							
								      splitChunks: {
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								 | 
							
							
								        chunks: "all",
							 | 
						
					
						
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							 | 
							
								
							 | 
							
								
									
								 | 
							
							
								        maxInitialRequests: Infinity,
							 | 
						
					
						
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							 | 
							
								
							 | 
							
								
									
								 | 
							
							
								        minSize: 20000,
							 | 
						
					
						
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								 | 
							
							
								        cacheGroups: {
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								 | 
							
							
								          vendor: {
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							 | 
							
								
									
								 | 
							
							
								            test: /[\\/]node_modules[\\/]/,
							 | 
						
					
						
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							 | 
							
								
									
								 | 
							
							
								            name(module) {
							 | 
						
					
						
							| 
								
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							 | 
							
								
									
								 | 
							
							
								              const packageName = module.context.match(
							 | 
						
					
						
							| 
								
							 | 
							
								
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							 | 
							
								
									
								 | 
							
							
								                /[\\/]node_modules[\\/](.*?)([\\/]|$)/
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								 | 
							
							
								              )[1];
							 | 
						
					
						
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							 | 
							
								
									
								 | 
							
							
								              return `npm.${packageName.replace("@", "")}`;
							 | 
						
					
						
							| 
								
							 | 
							
								
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							 | 
							
								
									
								 | 
							
							
								            }
							 | 
						
					
						
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							 | 
							
								
									
								 | 
							
							
								          }
							 | 
						
					
						
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								 | 
							
							
								        }
							 | 
						
					
						
							| 
								
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							 | 
							
								
									
								 | 
							
							
								      }
							 | 
						
					
						
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							 | 
							
								
							 | 
							
								
							 | 
							
								
									
								 | 
							
							
								    }
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
								
									
								 | 
							
							
								  },
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							| 
								
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							 | 
							
								
									
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								  // 将cdn的资源挂载到插件上
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								  chainWebpack(config) {
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								    //  @ 对应 src目录
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								    config.resolve.alias.set("@", resolve("src"));
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								    config.plugin("html").tap(args => {
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								      args[0].cdn = cdn;
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								      args[0].title = configs.title;
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											2021-09-06 17:01:38 +08:00
										 
									 
								 
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								      return args;
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								    });
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								  }
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								};
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