agusID/boilerplate-svelte

const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const HtmlWebpackInlineSourcePlugin = require('html-webpack-inline-source-plugin')
const path = require('path')

const mode = process.env.NODE_ENV || 'development'
const prod = mode === 'production'

const { scss } = require('svelte-preprocess')

const alias = {
  svelte: path.resolve('node_modules', 'svelte'),
  '@components': path.resolve(__dirname, './src/components/index.js'),
  '@assets': path.resolve(__dirname, './src/assets'),
  '@config': path.resolve(__dirname, './src/config'),
  '@views': path.resolve(__dirname, './src/views'),
}
const extensions = ['.mjs', '.ts', '.js', '.svelte']
const mainFields = ['svelte', 'browser', 'module', 'main']

const isInline = process.env.INLINE_SOURCE

const webpackConfig = {
  entry: {
    bundle: ['./src/main.js'],
  },
  resolve: { alias, extensions, mainFields },
  output: {
    path: __dirname + '/public',
    filename: '[name].js',
    chunkFilename: '[name].[id].js',
  },
  module: {
    rules: [
      {
        test: /\.svelte$/,
        use: {
          loader: 'svelte-loader',
          options: {
            emitCss: true,
            hotReload: true,
            preprocess: require('svelte-preprocess')([scss()]),
          },
        },
      },
      {
        test: /\.css$/,
        use: [
          /**
           * MiniCssExtractPlugin doesn't support HMR.
           * For developing, use 'style-loader' instead.
           * */
          prod ? MiniCssExtractPlugin.loader : 'style-loader',
          'css-loader',
        ],
      },
      {
        test: /\.(png|jpe?g|svg)$/,
        use: [
          {
            loader: 'file-loader',
          },
        ],
      },
    ],
  },
  mode,
  plugins: [
    new MiniCssExtractPlugin({
      filename: '[name].css',
    }),
    new HtmlWebpackPlugin({
      inlineSource: isInline ? '.(js|css)$' : '',
      hash: isInline ? false : true,
      title: 'svelte-boilerplate',
    }),
    new HtmlWebpackInlineSourcePlugin(),
  ],
  devtool: prod ? false : 'source-map',
  devServer: {
    port: 3000,
  },
}

module.exports = webpackConfig