webpack.common.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');
const ForkTsCheckerPlugin = require('fork-ts-checker-webpack-plugin');

const BG_IMAGES_DIRNAME = 'bgimages';
const ASSET_PATH = process.env.ASSET_PATH || '/';

module.exports = env => {
  return {
    context: __dirname,
    entry: {
      app: path.resolve(__dirname, 'src', 'index.tsx')
    },
    plugins: [
      new ForkTsCheckerPlugin(),
      new HtmlWebpackPlugin({
        template: path.resolve(__dirname, 'src', 'index.html'),
        favicon: './src/app/assets/cryostat-3-icon-16px.png',
      }),
    ],
    // https://medium.com/hackernoon/the-100-correct-way-to-split-your-chunks-with-webpack-f8a9df5b7758
    optimization: {
      runtimeChunk: 'single',
      splitChunks: {
        chunks: 'all',
        maxInitialRequests: Infinity,
        minSize: 0,
        cacheGroups: {
          vendor: {
            test: /[\\/]node_modules[\\/]/,
            name(module) {
              // get the name. E.g. node_modules/packageName/not/this/part.js
              // or node_modules/packageName
              const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];

              // npm package names are URL-safe, but some servers don't like @ symbols
              return `npm.${packageName.replace('@', '')}`;
            },
          },
        },
      },
    },
    module: {
      rules: [
        {
          test: /\.(tsx|ts|jsx)?$/,
          exclude: /node_modules/,
          use: [
            {
              loader: 'ts-loader',
              options: {
                transpileOnly: true,
                experimentalWatchApi: true,
              }
            }
          ]
        },
        {
          test: /\.(svg|ttf|eot|woff|woff2)$/,
          // only process modules with this loader
          // if they live under a 'fonts' or 'pficon' directory
          include: [
            path.resolve(__dirname, 'node_modules/patternfly/dist/fonts'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-core/dist/styles/assets/fonts'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-core/dist/styles/assets/pficon'),
            path.resolve(__dirname, 'node_modules/@patternfly/patternfly/assets/fonts'),
            path.resolve(__dirname, 'node_modules/@patternfly/patternfly/assets/pficon')
          ],
          use: {
            loader: 'file-loader',
            options: {
              // Limit at 50k. larger files emited into separate files
              limit: 5000,
              outputPath: 'fonts',
              name: '[name].[ext]',
            }
          }
        },
        {
          test: /\.svg$/,
          include: input => input.indexOf('background-filter.svg') > 1,
          use: [
            {
              loader: 'url-loader',
              options: {
                limit: 5000,
                outputPath: 'svgs',
                name: '[name].[ext]',
              }
            }
          ]
        },
        {
          test: /\.svg$/,
          // only process SVG modules with this loader if they live under a 'bgimages' directory
          // this is primarily useful when applying a CSS background using an SVG
          include: input => input.indexOf(BG_IMAGES_DIRNAME) > -1,
          use: {
            loader: 'svg-url-loader',
            options: {}
          }
        },
        {
          test: /\.svg$/,
          // only process SVG modules with this loader when they don't live under a 'bgimages',
          // 'fonts', or 'pficon' directory, those are handled with other loaders
          include: input => (
            (input.indexOf(BG_IMAGES_DIRNAME) === -1) &&
            (input.indexOf('fonts') === -1) &&
            (input.indexOf('background-filter') === -1) &&
            (input.indexOf('pficon') === -1)
          ),
          exclude: [
            path.resolve(__dirname, 'src/app/assets')
          ],
          use: {
            loader: 'raw-loader',
            options: {}
          }
        },
        {
          test: /\.(jpg|jpeg|png|gif|svg)$/i,
          include: [
            path.resolve(__dirname, 'src'),
            path.resolve(__dirname, 'node_modules/patternfly'),
            path.resolve(__dirname, 'node_modules/@patternfly/patternfly/assets/images'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-styles/css/assets/images'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-core/dist/styles/assets/images'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-core/node_modules/@patternfly/react-styles/css/assets/images'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-table/node_modules/@patternfly/react-styles/css/assets/images'),
            path.resolve(__dirname, 'node_modules/@patternfly/react-inline-edit-extension/node_modules/@patternfly/react-styles/css/assets/images')
          ],
          use: [
            {
              loader: 'url-loader',
              options: {
                limit: 5000,
                outputPath: 'images',
                name: '[name].[ext]',
              }
            }
          ]
        }
      ]
    },
    output: {
      filename: '[name].bundle.js',
      path: path.resolve(__dirname, 'dist'),
      publicPath: ASSET_PATH,
    },
    resolve: {
      extensions: ['.ts', '.tsx', '.js', '.jsx'],
      plugins: [
        new TsconfigPathsPlugin({
          configFile: path.resolve(__dirname, './tsconfig.json')
        })
      ],
      symlinks: false,
      cacheWithContext: false
    },
  };
}