webpack.common.js

const path = require('path');
const URL = require('url');

const webpack = require('webpack');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

const PJ = require('./package.json')
const CRS_PJ = require('crsearch/package.json')


function isExternal(module) {
  var context = module.context;

  if (typeof context !== 'string') {
    return false;
  }

  return context.indexOf('node_modules') !== -1;
}


module.exports = env => ({
  js: {
    context: path.resolve(__dirname, 'js'),
    entry: {
      kunai: './kunai',
    },
    output: {
      path: path.resolve(__dirname, 'dist'),
      filename: 'js/[name].js',
      library: 'Kunai',
      libraryTarget: 'window',
      libraryExport: 'Kunai',
    },
    module: {
      rules: [
        {
          test: /\.css$/,
          use: [
            {
              loader: MiniCssExtractPlugin.loader,
            },
            {
              loader: 'css-loader',
              options: {
                sourceMap: false,
              }
            },
          ],
          include: [
            path.resolve(__dirname, 'js'),
            path.resolve(__dirname, 'node_modules'),
          ],
        },
        {
          test: /\.js$/,
          use: [
            {
              loader: 'babel-loader',
            },
          ],
          include: [
            path.resolve(__dirname, 'js'),
            path.resolve(__dirname, 'node_modules', 'crsearch'),
          ],
        },
        {
          test: /\.md$/,
          use: [
            {
              loader: 'raw-loader',
            },
          ],
        },
      ],
    },
    plugins: [
      new webpack.ProvidePlugin({
        $: 'jquery',
        jQuery: 'jquery',
      }),
      new webpack.DefinePlugin({
        KUNAI_PACKAGE: JSON.stringify({
          version: PJ.version,
          bugs_url: PJ.bugs.url,
        }),
        CRS_PACKAGE: JSON.stringify({
          version: CRS_PJ.version,
          bugs_url: CRS_PJ.bugs.url,
        }),
      }),
      new MiniCssExtractPlugin({
        filename: 'css/kunai-stage-1.css',
        chunkFilename: 'css/kunai-stage-1.css'
      }),
    ],
    optimization: {
      splitChunks: {
        cacheGroups: {
          vendors: {
            name: 'kunai-vendor',
            test: /[\\/]node_modules[\\/]/,
            chunks: 'initial',
            enforce: true
          }
        }
      },
    },
  },
  css: {
    context: path.resolve(__dirname, 'css'),
    entry: {
      // https://github.com/webpack-contrib/mini-css-extract-plugin/issues/151
      // この問題のせいで kunai-stage-0.js とかが作られてしまうので
      // package.json 側でビルド後に削除しておく必要がある
      'kunai-stage-0': './kunai-stage-0.css',
      'kunai-stage-2': './kunai-stage-2.scss',
      'kunai-stage-3': './kunai-stage-3.css',
    },
    output: {
      path: path.resolve(__dirname, 'dist'),
    },
    module: {
      rules: [
        {
          test: /\.scss$/,
          use: [
            {
              loader: MiniCssExtractPlugin.loader,
            },
            {
              loader: 'css-loader',
              options: {
                importLoaders: 2,
              },
            },
            {
              loader: 'postcss-loader',
              options: {
                postcssOptions: {
                  mode: env,
                },
              },
            },
            {
              loader: 'sass-loader',
            },
          ],
        },
        {
          test: /\.css$/,
          use: [
            {
              loader: MiniCssExtractPlugin.loader,
            },
            {
              loader: 'css-loader',
              options: {
                // sourceMap: true,
                importLoaders: 1,
              }
            },
            {
              loader: 'postcss-loader',
              options: {
                postcssOptions: {
                  mode: env,
                  cssnano: {
                    cssProcessorOptions: {
                      // http://cssnano.co/optimisations/reduceidents/
                      reduceIdents: false,
                    },
                  },
                },
              },
            },
            // {
              // loader: 'sass-loader',
            // },
          ],
        },
        {
          test: /\.(ttf|eot|svg|woff(2)?)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
          // Embedding font to avoid path issue of assets and public path
          // type: 'asset/resource',
          type: 'asset/inline',
        },
      ],
    },
    plugins: [
      new MiniCssExtractPlugin({
        filename: 'css/[name].css',
      }),
    ]
  },
})