webpack.config.js

var path = require('path')
var webpack = require('webpack')

module.exports = {
  entry: {//入口entry
    app:'./src/main.js',
    
  },
  externals:{
    "BMap":"BMap",
    "BMap_Symbol_SHAPE_POINT":"BMap_Symbol_SHAPE_POINT"
  },
  output: {//出口output
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'build.js'
  },
  
  module: {//loader对webpack不能识别的非JavaScript类型，在打包前，进行转换
    rules: [
      {
        test: /\.css$/,//告诉webpack，当遇到require/import解析文件为css类型时，在打包之前，使用'vue-style-loader'和'css-loader'先转换一下
        use: [
          'vue-style-loader',
          'css-loader'
        ],
      },
      {
        test: /\.scss$/,
        use: [
          'vue-style-loader',
          'css-loader',
          'sass-loader'
        ],
      },
      {
        test: /\.sass$/,
        use: [
          'vue-style-loader',
          'css-loader',
          'sass-loader?indentedSyntax'
        ],
      },
      {
        test: /\.vue$/,
        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'
            ],
            'sass': [
              'vue-style-loader',
              'css-loader',
              'sass-loader?indentedSyntax'
            ]
          }
          // other vue-loader options go here
        }
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2)(\?\S*)?$/,
        loader: 'file-loader'
              }
    ]
  },
  resolve: {
     extensions: ['*', '.js', '.vue', '.json'],
    alias: {
     
      'vue$': 'vue/dist/vue.esm.js',
       '@': path.resolve('src'),
        
    },
   
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true,
    overlay: true
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  // 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 webpack.optimize.UglifyJsPlugin({
      sourceMap: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}