webpack.config.dev.js

const path = require('path')
const webpack = require('webpack')
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
const VueLoaderPlugin = require('vue-loader/lib/plugin')

module.exports = {
  entry: './src/main.js',
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'build.js'
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          { loader: 'vue-style-loader', options: { sourceMap: true } },
          { loader: 'css-loader', options: { sourceMap: true } },
          { loader: 'postcss-loader', options: { sourceMap: true } }
        ],
      },
      {
        test: /\.scss$/,
        use: [
          { loader: 'vue-style-loader', options: { sourceMap: true } },
          { loader: 'css-loader', options: { sourceMap: true } },
          { loader: 'sass-loader', options: { sourceMap: true } },
          { loader: 'postcss-loader', options: { sourceMap: true } }
        ],
      },
      {
        test: /\.sass$/,
        use: [
          { loader: 'vue-style-loader', options: { sourceMap: true } },
          { loader: 'css-loader', options: { sourceMap: true } },
          { loader: 'sass-loader', options: { sourceMap: true } },
          { loader: 'sass-loader?indentedSyntax', options: { sourceMap: true } },
          { loader: 'postcss-loader', options: { sourceMap: true } }
        ],
      },
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            // Since sass-loader (weirdly) has SCSS as its default parse mode, we map
            // the "scss" and "sass" values for the lang attribute to the right configs here.
            // other preprocessors should work out of the box, no loader config like this necessary.
            'scss': [
              'vue-style-loader',
              'css-loader',
              'sass-loader',
              'postcss-loader'
            ],
            'sass': [
              'vue-style-loader',
              'css-loader',
              'sass-loader?indentedSyntax',
              'postcss-loader'
            ]
          },
          sourceMap: true
          // other vue-loader options go here
        }
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000
        }
      },
      {
        test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000
        }
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000
        }
      }
    ]
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      'src': path.resolve(__dirname, 'src'),
      '@': path.resolve(__dirname, 'src')
    },
    extensions: ['*', '.js', '.vue', '.json']
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true,
    overlay: true
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
}

module.exports.devtool = '#source-map'
module.exports.optimization= {
  minimizer: [new UglifyJsPlugin()],
}
// http://vue-loader.vuejs.org/en/workflow/production.html
module.exports.plugins = (module.exports.plugins || []).concat([
  new webpack.DefinePlugin({
    'process.env': {
      NODE_ENV: '"production"'
    }
  }),
  new VueLoaderPlugin(),
  new webpack.LoaderOptionsPlugin({
    minimize: true
  })
])