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build/utils.js 2.35 KB
ce4c83ff   wxy   初始提交
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  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
      }
    };
  
    var postcssLoader = {
      loader: "postcss-loader",
      options: {
        sourceMap: true
      }
    };
  
    var px2rpxLoader = {
      loader: "px2rpx-loader",
      options: {
        baseDpr: 1,
        rpxUnit: 0.5
      }
    };
    var stylusOptions = {
      import: [
        path.join(__dirname, "../src/style.styl") // style.styl全局变量文件
      ]
    };
  
    // generate loader string to be used with extract text plugin
    function generateLoaders(loader, loaderOptions) {
      var loaders = [cssLoader, px2rpxLoader, postcssLoader];
      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(),
      wxss: generateLoaders(),
      postcss: generateLoaders(),
      less: generateLoaders("less"),
      sass: generateLoaders("sass", { indentedSyntax: true }),
      scss: generateLoaders("sass"),
      stylus: generateLoaders("stylus", stylusOptions),
      styl: generateLoaders("stylus", stylusOptions)
    };
  };
  
  // 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;
  };