text: var path = require('path')
  var config = require('../config')
  var ExtractTextPlugin = require('extract-text-webpack-plugin')
  exports.assetsPath = function (_path) {
      var assetsSubDirectory = process.env.NODE_ENV === 'production'
          ? config.build.assetsSubDirectory
          : config.dev.assetsSubDirectory
      return path.posix.join(assetsSubDirectory, _path)
  }
  exports.cssLoaders = function (options) {
      options = options || {}
      var cssLoader = {
          loader: 'css-loader',
          options: {
              minimize: process.env.NODE_ENV === 'production',
              sourceMap: options.sourceMap
          }
      }
      // generate loader string to be used with extract text plugin
      function generateLoaders(loader, loaderOptions) {
          var loaders = [cssLoader]
          if (loader) {
              loaders.push({
                  loader: loader + '-loader',
                  options: Object.assign({}, loaderOptions, {
                      sourceMap: options.sourceMap
                  })
              })
          }
          // Extract CSS when that option is specified
          // (which is the case during production build)
          if (options.extract) {
              return ExtractTextPlugin.extract({
                  use: loaders,
                  fallback: 'vue-style-loader'
              })
          } else {
              return ['vue-style-loader'].concat(loaders)
          }
      }
  
      // https://vue-loader.vuejs.org/en/configurations/extract-css.html
      return {
          css: generateLoaders(),
          postcss: generateLoaders(),
          less: generateLoaders('less'),
          sass: generateLoaders('sass', {indentedSyntax: true}),
          scss: generateLoaders('sass'),
          stylus: generateLoaders('stylus'),
          styl: generateLoaders('stylus')
      }
  }
  // Generate loaders for standalone style files (outside of .vue)
  exports.styleLoaders = function (options) {
      var output = []
      var loaders = exports.cssLoaders(options)
      for (var extension in loaders) {
          var loader = loaders[extension]
          output.push({
              test: new RegExp('\\.' + extension + '$'),
              use: loader
          })
      }
      return output
  }
  