webpack PurgeCSS webpack插件无法正常工作

编程问答 2022-08-15

问题描述

我要在使用webpack和purgecss-webpack-plugin的设置中从Clarity UI CSS文件中清除未使用的CSS。
但是，尽管CSS文件的大小从565kB减小到172kB，但由于我不使用任何文件，因此应将其减小到0kB。如果我使用Bootstrap做同样的事情，文件大小将减小到1kB。

为什么会这样，并且有解决办法？

我的文件夹结构如下：

|-dist  
|  
|-node_modules  
|  
|-src  
  |--index.js  
|  
|.babelrc  
|package.json  
|webpack.config.js

我的package.json：

{
  "name": "webpack-clarity","version": "1.0.0","description": "","private": true,"scripts": {
    "start": "node ./index.js","build": "webpack"
  },"dependencies": {
    "@clr/ui": "^4.0.0","bootstrap": "^4.5.2"
  },"devDependencies": {
    "@babel/core": "^7.10.4","@babel/preset-env": "^7.10.4","babel-loader": "^8.1.0","css-loader": "^3.6.0","glob": "^7.1.6","html-webpack-plugin": "^4.3.0","mini-css-extract-plugin": "^0.9.0","optimize-css-assets-webpack-plugin": "^5.0.3","purgecss-webpack-plugin": "^2.3.0","webpack": "^4.44.1","webpack-cli": "^3.3.12"
  }
}

webpack.config.js 

const path = require("path");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCssAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin");
const glob = require("glob");
const PurgeCssplugin = require("purgecss-webpack-plugin");

module.exports = {
  mode: "production",entry: "./src/index.js",output: {
    filename: "main.js",path: path.resolve(__dirname,"dist"),},optimization: {
    minimizer: [new OptimizeCssAssetsPlugin(),new TerserPlugin()],module: {
    rules: [
      {
        test: /\.js$/,exclude: /node_modules/,use: ["babel-loader"],{
        test: /\.css$/,use: [MiniCssExtractPlugin.loader,"css-loader"],],plugins: [
    new MiniCssExtractPlugin({ filename: "[name].css" }),new PurgeCssplugin({
      paths: glob.sync("./src/**/*.js",{ nodir: true }),}),};

.babelrc 

{
  "presets": [
    [   
      "@babel/preset-env",{"modules": false}
    ]
  ]
}

index.js 

import "../node_modules/@clr/ui/clr-ui.min.css";
import "../node_modules/bootstrap/dist/css/bootstrap.min.css";

解决方法

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javascriptvmware-claritywebpackwebpackwebpack