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build.js
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build.js
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const webpack = require('webpack')
const { merge } = require('webpack-merge')
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const MyWebpackPlugin = require('./my-webpack-plugin/src/index');
const webpackOptions = require('./webpack.config')({ NODE_ENV: 'development' })
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const config = {
mode: 'production',
// devtool: 'source-map',
plugins: [
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: JSON.stringify('production')
}
}),
new CleanWebpackPlugin(),
new MiniCssExtractPlugin({
filename: 'assets/css/[name].[contenthash].css',
chunkFilename: 'assets/css/[name].[contenthash].css',
linkType: 'text/css'
}),
// new MyWebpackPlugin({ name: 'hello dongsen' }),
],
module: {
rules: [
{
test: /\.css$/i,
exclude: [/\.module\.css$/i],
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
esModule: true,
}
},
{
loader: 'css-loader',
options: {
}
},
{
loader: 'postcss-loader',
options: {
}
}
]
},
{
test: /\.module\.css$/i,
use: [
{
loader: MiniCssExtractPlugin.loader,
options: {
esModule: true,
}
},
{
loader: 'css-loader',
options: {
modules: {
// namedExport: true,
localIdentName: '[name]__[local]--[hash:6]'
}
}
},
{
loader: 'postcss-loader',
options: {
}
}
]
},
]
},
optimization: {
// runtimeChunk: 'single',
minimize: true,
minimizer: [
'...', // 默认的压缩配置
new CssMinimizerPlugin({ // 压缩 css 代码
cache: true,
test: /\.css$/i
}),
],
splitChunks: {
cacheGroups: {
styles: { // 提取所有的css到一个文件
name: 'common',
test: /\.css$/i,
chunks: 'all',
enforce: true
}
}
}
}
}
// analyzer
if (process.argv.includes('--analyze')) config.plugins.push(new BundleAnalyzerPlugin())
if (process.argv.includes('--watch')) {
webpack(merge(webpackOptions, config)).watch({}, stats)
} else {
webpack(merge(webpackOptions, config)).run(stats)
}
function stats(err, stats) {
if (err) {
console.error(err.stack || err);
if (err.details) {
console.error(err.details);
}
return
}
const info = stats.toJson()
if (stats.hasErrors()) {
console.error(info.errors);
}
if (stats.hasWarnings()) {
console.warn(info.warnings);
}
}