const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
const CopyPlugin = require('copy-webpack-plugin')
const path = require('path')

module.exports = {
  publicPath: './',
  productionSourceMap: false,
  chainWebpack: config => {
    config.optimization
      .minimizer('uglify-plugin')
      .use(UglifyJsPlugin, [{
        uglifyOptions: {
          drop_console: false,
          drop_debugger: false,
          pure_funcs: ['console.log']
        }
      }])
    config.plugin('copy-plugin')
      .use(CopyPlugin, [{
        patterns: [{
          from: path.join(__dirname, 'README.md'),
          to: path.join(__dirname, 'dist', 'README.md'),
        }],
      }])
  },
}