text: const path = require('path')
  const webpack = require('webpack')
  const GitRevisionPlugin = require('git-revision-webpack-plugin')
  const GitRevision = new GitRevisionPlugin()
  const buildDate = JSON.stringify(new Date().toLocaleString())
  const createThemeColorReplacerPlugin = require('./config/plugin.config')
  
  function resolve (dir) {
    // eslint-disable-next-line no-undef
    return path.join(__dirname, dir)
  }
  
  // check Git
  function getGitHash () {
    try {
      return GitRevision.version()
    } catch (e) {}
    return 'unknown'
  }
  
  const assetsCDN = {
    // main.js里引入了对应的less以使 webpack-theme-color-replacer工作
    // https://cdn.jsdelivr.net/npm/ant-design-vue@1.3.9/dist/antd.min.css
    css: [],
    js: [
      'https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.min.js',
      'https://cdn.jsdelivr.net/npm/axios@0.19.0/dist/axios.min.js',
      'https://cdn.jsdelivr.net/npm/vue-router@3.1.2/dist/vue-router.min.js',
      'https://cdn.jsdelivr.net/npm/vuex@3.1.1/dist/vuex.min.js',
      'https://cdn.jsdelivr.net/npm/moment@2.24.0/moment.min.js',
      'https://cdn.jsdelivr.net/npm/moment@2.24.0/locale/zh-cn.js',
      'https://cdn.jsdelivr.net/npm/@antv/g2@3.5.7/dist/g2.min.js',
      'https://cdn.jsdelivr.net/npm/@antv/data-set@0.10.2/dist/data-set.min.js',
      'https://cdn.jsdelivr.net/npm/ant-design-vue@1.6.0/dist/antd-with-locales.js'
    ]
  }
  // webpack build externals
  const prodExternals = {
    // key表示包名(import foo from 'xx' 里的xx)
    // value表示window下的全局变量名(库暴露出来的namespace,可查lib对应的webpack配置里的library字段)
    'vue': 'Vue',
    'axios': 'axios',
    'vue-router': 'VueRouter',
    'vuex': 'Vuex',
    'moment': 'moment',
    '@antv/g2': 'G2',
    '@antv/data-set': 'DataSet',
    'ant-design-vue': 'antd'
  }
  
  // vue.config.js
  const vueConfig = {
    configureWebpack: {
      externals: prodExternals,
      plugins: [
        // Ignore all locale files of moment.js
        new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
        new webpack.IgnorePlugin(/moment\//),
        new webpack.DefinePlugin({
          APP_VERSION: `"${require('./package.json').version}"`,
          GIT_HASH: JSON.stringify(getGitHash()),
          BUILD_DATE: buildDate
        })
      ]
    },
  
    chainWebpack: config => {
      config.resolve.alias.set('@$', resolve('src'))
  
      const svgRule = config.module.rule('svg')
      svgRule.uses.clear()
      svgRule
        .oneOf('inline')
        .resourceQuery(/inline/)
        .use('vue-svg-icon-loader')
        .loader('vue-svg-icon-loader')
        .end()
        .end()
        .oneOf('external')
        .use('file-loader')
        .loader('file-loader')
        .options({
          name: 'assets/[name].[hash:8].[ext]'
        })
      // assets require on cdn
      config.plugin('html').tap(args => {
        args[0].cdn = assetsCDN
        return args
      })
    },
  
    css: {
      loaderOptions: {
        less: {
          modifyVars: {
            // less vars，customize ant design theme
            // 'primary-color': '#F5222D',
            // 'link-color': '#F5222D',
            // 'border-radius-base': '4px'
            'border-radius-base': '2px'
          },
          javascriptEnabled: true
        }
      }
    },
  
    devServer: {
      // development server port 8000
      port: 8000,
      proxy: {
        '/api': {
          target: 'http://gateway.com:9527',
          pathRewrite: { '^/api': '' },
          ws: false,
          changeOrigin: true
        }
      }
    },
  
    // disable source map in production
    productionSourceMap: false,
    lintOnSave: undefined,
    // babel-loader no-ignore node_modules/*
    transpileDependencies: []
  }
  
  // 如果你不想在生产环境开启换肤功能，请打开下面注释
  // if (process.env.VUE_APP_PREVIEW === 'true') {
  // add `ThemeColorReplacer` plugin to webpack plugins
  vueConfig.configureWebpack.plugins.push(createThemeColorReplacerPlugin())
  // }
  
  module.exports = vueConfig
  