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webpack.prod.js
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webpack.prod.js
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require('dotenv').config();
const webpack = require('webpack');
const path = require('path');
const merge = require('webpack-merge');
const TerserPlugin = require('terser-webpack-plugin');
const WorkboxPlugin = require('workbox-webpack-plugin');
const baseConfig = require('./webpack.common.js');
const plugins = [
// 로더들에게 옵션을 넣어주는 플러그인
new webpack.LoaderOptionsPlugin({
minimize: true,
}),
// index.html 로 의존성 파일들 inject해주는 플러그인
new WorkboxPlugin.GenerateSW({
swDest: 'sw.js',
skipWaiting: true,
clientsClaim: true,
}),
];
module.exports = merge(baseConfig, {
mode: 'production',
entry: {
vendor: [
'react',
'react-dom',
'lodash',
'antd',
],
app: ['@babel/polyfill', path.resolve(__dirname, 'src/index.tsx')],
},
output: {
// entry에 존재하는 app.js, vendor.js로 뽑혀 나온다.
path: path.resolve(__dirname, 'docs'),
filename: 'js/[name].[chunkhash:16].js',
chunkFilename: 'js/[id].[chunkhash:16].js',
publicPath: process.env.PUBLIC_URL,
},
optimization: {
minimizer: [
// we specify a custom UglifyJsPlugin here to get source maps in production
new TerserPlugin({
cache: true,
parallel: true,
terserOptions: {
warnings: false,
compress: {
warnings: false,
unused: true, // tree shaking(export된 모듈 중 사용하지 않는 모듈은 포함하지않음)
},
ecma: 6,
mangle: true,
unused: true,
},
sourceMap: true,
}),
],
},
plugins,
});