webpack.config.js

const path = require('path');
const webpack = require('webpack');
const Dotenv = require('dotenv-webpack');
const HtmlWebPackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
  mode: 'development',
  entry: path.resolve(__dirname, 'src/index.jsx'),
  output: {
    path: `${__dirname}/build`,
    filename: 'bundle.js',
    publicPath: '/',
  },
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: 'babel-loader',
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              publicPath: '/',
              name: 'assets/images/[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.(gpx)$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              publicPath: '/',
              name: 'data/gpx/[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: 'html-loader',
            options: { minimize: true },
          },
        ],
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
    ],
  },
  resolve: {
    alias: {
      presentational: path.resolve(__dirname, 'src/presentational/'),
      container: path.resolve(__dirname, 'src/container/'),
      _redux: path.resolve(__dirname, 'src/redux/'),
      data: path.resolve(__dirname, 'src/data/'),
      utils: path.resolve(__dirname, 'src/utils/'),
      service: path.resolve(__dirname, 'src/service/'),
      page: path.resolve(__dirname, 'src/page/'),
      asset: path.resolve(__dirname, 'src/asset/'),
      style: path.resolve(__dirname, 'src/style/'),
    },
    extensions: ['.js', '.jsx'],
  },
  devServer: {
    publicPath: '/',
    historyApiFallback: {
      index: 'index.html',
    },
  },
  plugins: [
    new Dotenv(),
    new webpack.DefinePlugin({
      'process.env': {
        MAP_CLIENT_ID: JSON.stringify(
          process.env.MAP_CLIENT_ID,
        ),
      },
    }),
    new HtmlWebPackPlugin({
      template: './index.html', // public/index.html 파일을 읽는다.
      filename: 'index.html', // output으로 출력할 파일은 index.html 이다.
    }),
    new CleanWebpackPlugin({}),
  ],
};