webpack.config.js

var path = require('path')
var webpack = require('webpack')
var ExtractTextPlugin = require('extract-text-webpack-plugin');

module.exports = {
  entry: ['./js/dashboard.js', './styles/main.scss'],
  output: {
    path: path.resolve(__dirname, '../priv/static/'),
    publicPath: '/js/',
    filename: 'js/dashboard.js'
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        use: {
          loader: 'vue-loader',
          options: {
            loaders: {
              scss: [
                'vue-style-loader',
                'css-loader',
                'sass-loader',
                {
                  loader: 'sass-resources-loader',
                  options: {
                    resources: path.resolve(__dirname, 'styles/variables.scss')
                  }
                }
              ]
            }
          }
        }
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: { name: '[name].[ext]?[hash]' }
      },
      {
        test: /\.scss$/,
        loader: ExtractTextPlugin.extract(['css-loader', 'sass-loader'])
      }
    ]
  },
  plugins: [
    new ExtractTextPlugin({
      filename: 'css/main.css',
      allChunks: true
    })
  ],
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    }
  },
  devtool: '#eval-source-map'
}