build/utils.js

   1 var path = require('path')
   2 var config = require('../config')
   3 var ExtractTextPlugin = require('extract-text-webpack-plugin')
   4
   5 exports.assetsPath = function (_path) {
   6   var assetsSubDirectory = process.env.NODE_ENV === 'production'
   7     ? config.build.assetsSubDirectory
   8     : config.dev.assetsSubDirectory
   9   return path.posix.join(assetsSubDirectory, _path)
  10 }
  11
  12 exports.cssLoaders = function (options) {
  13   options = options || {}
  14
  15   var cssLoader = {
  16     loader: 'css-loader',
  17     options: {
  18       minimize: process.env.NODE_ENV === 'production',
  19       sourceMap: options.sourceMap
  20     }
  21   }
  22
  23   // generate loader string to be used with extract text plugin
  24   function generateLoaders (loader, loaderOptions) {
  25     var loaders = [cssLoader]
  26     if (loader) {
  27       loaders.push({
  28         loader: loader + '-loader',
  29         options: Object.assign({}, loaderOptions, {
  30           sourceMap: options.sourceMap
  31         })
  32       })
  33     }
  34
  35     // Extract CSS when that option is specified
  36     // (which is the case during production build)
  37     if (options.extract) {
  38       return ExtractTextPlugin.extract({
  39         use: loaders,
  40         fallback: 'vue-style-loader'
  41       })
  42     } else {
  43       return ['vue-style-loader'].concat(loaders)
  44     }
  45   }
  46
  47   // https://vue-loader.vuejs.org/en/configurations/extract-css.html
  48   return {
  49     css: generateLoaders(),
  50     postcss: generateLoaders(),
  51     less: generateLoaders('less'),
  52     sass: generateLoaders('sass', { indentedSyntax: true }),
  53     scss: generateLoaders('sass'),
  54     stylus: generateLoaders('stylus'),
  55     styl: generateLoaders('stylus')
  56   }
  57 }
  58
  59 // Generate loaders for standalone style files (outside of .vue)
  60 exports.styleLoaders = function (options) {
  61   var output = []
  62   var loaders = exports.cssLoaders(options)
  63   for (var extension in loaders) {
  64     var loader = loaders[extension]
  65     output.push({
  66       test: new RegExp('\\.' + extension + '$'),
  67       use: loader
  68     })
  69   }
  70   return output
  71 }