feat: vue-loader next migration

lib/builder/webpack/base.config.mjs

@@ -5,11 +5,12 @@ import TimeFixPlugin from 'time-fix-plugin'
 import webpack from 'webpack'
 import _ from 'lodash'
 
+import VueLoader from 'vue-loader'
 import { isUrl, urlJoin } from '../../common/utils'
 
+import customLoaders from './loaders'
 import WarnFixPlugin from './plugins/warnfix'
 import ProgressPlugin from './plugins/progress'
-import vueLoader from './vue-loader'
 import styleLoaderWrapper from './style-loader'
 
 /*
@@ -68,6 +69,7 @@ export default function webpackBaseConfig({ name, isServer }) {
       modules: webpackModulesDir
     },
     resolveLoader: {
+      alias: customLoaders,
       modules: webpackModulesDir
     },
     module: {
@@ -76,7 +78,7 @@ export default function webpackBaseConfig({ name, isServer }) {
         {
           test: /\.vue$/,
           loader: 'vue-loader',
-          options: vueLoader.call(this, { isServer })
+          options: _.cloneDeep(this.options.build.vue)
         },
         {
           test: /\.jsx?$/,
@@ -123,7 +125,10 @@ export default function webpackBaseConfig({ name, isServer }) {
         }
       ]
     },
-    plugins: this.options.build.plugins
+    plugins: [
+      new VueLoader.VueLoaderPlugin(),
+      ...(this.options.plugins || [])
+    ]
   }
 
   // Build progress indicator

lib/builder/webpack/client.config.mjs

@@ -41,7 +41,7 @@ export default function webpackClientConfig() {
   config.plugins.push(
     new HTMLPlugin({
       filename: 'index.spa.html',
-      template: this.options.appTemplatePath,
+      template: 'lodash!' + this.options.appTemplatePath,
       inject: true,
       chunksSortMode: 'dependency'
     })
@@ -52,7 +52,7 @@ export default function webpackClientConfig() {
     config.plugins.push(
       new HTMLPlugin({
         filename: 'index.ssr.html',
-        template: this.options.appTemplatePath,
+        template: 'lodash!' + this.options.appTemplatePath,
         inject: false // Resources will be injected using bundleRenderer
       })
     )

lib/builder/webpack/loaders/index.js

@@ -0,0 +1,3 @@
+export default {
+  'lodash': require.resolve('./lodash-loader')
+}

lib/builder/webpack/loaders/lodash-loader.js

@@ -0,0 +1,41 @@
+import _ from 'lodash'
+import loaderUtils from 'loader-utils'
+
+export default function (source) {
+  if (this.cacheable) {
+    this.cacheable()
+  }
+
+  // Skip .js files
+  if (/\.js$/.test(this.resourcePath)) {
+    return source
+  }
+
+  // The following part renders the tempalte with lodash as aminimalistic loader
+  //
+  // Get templating options
+  const options = this.query !== '' ? loaderUtils.parseQuery(this.query) : {}
+  // Webpack 2 does not allow with() statements, which lodash templates use to unwrap
+  // the parameters passed to the compiled template inside the scope. We therefore
+  // need to unwrap them ourselves here. This is essentially what lodash does internally
+  // To tell lodash it should not use with we set a variable
+  const template = _.template(source, _.defaults(options, { variable: 'data' }))
+  // All templateVariables which should be available
+  // @see HtmlWebpackPlugin.prototype.executeTemplate
+  const templateVariables = [
+    'compilation',
+    'webpack',
+    'webpackConfig',
+    'htmlWebpackPlugin'
+  ]
+  return 'var _ = require(' + loaderUtils.stringifyRequest(this, require.resolve('lodash')) + ');' +
+    'module.exports = function (templateParams) {' +
+      // Declare the template variables in the outer scope of the
+      // lodash template to unwrap them
+      templateVariables.map(function (variableName) {
+        return 'var ' + variableName + ' = templateParams.' + variableName
+      }).join(';') + ';' +
+      // Execute the lodash template
+      'return (' + template.source + ')();' +
+    '}'
+};

lib/builder/webpack/style-loader.js

@@ -4,7 +4,7 @@ import MiniCssExtractPlugin from 'mini-css-extract-plugin'
 
 import postcssConfig from './postcss'
 
-export default ({isVueLoader = false, isServer}) => {
+export default ({ isServer }) => {
   return function styleLoader(ext, loaders = []) {
     const sourceMap = Boolean(this.options.build.cssSourceMap)
 
@@ -37,9 +37,7 @@ export default ({isVueLoader = false, isServer}) => {
     }
 
     // postcss-loader
-    // vue-loader already provides it's own
     // https://github.com/postcss/postcss-loader
-    if (!isVueLoader) {
     const _postcssConfig = postcssConfig.call(this)
 
     if (_postcssConfig) {
@@ -48,7 +46,6 @@ export default ({isVueLoader = false, isServer}) => {
         options: Object.assign({ sourceMap }, _postcssConfig)
       })
     }
-    }
 
     // css-loader
     // https://github.com/webpack-contrib/css-loader
@@ -66,6 +63,13 @@ export default ({isVueLoader = false, isServer}) => {
       }
     })
 
+    // Prepare vue-style-loader
+    // https://github.com/vuejs/vue-style-loader
+    loaders.unshift({
+      loader: 'vue-style-loader',
+      options: { sourceMap }
+    })
+
     // -- With extractCSS --
     if (this.options.build.extractCSS) {
       if (!isServer) {
@@ -79,13 +83,6 @@ export default ({isVueLoader = false, isServer}) => {
           })
         }
       }
-    } else {
-      // Prepare vue-style-loader
-      // https://github.com/vuejs/vue-style-loader
-      loaders.unshift({
-        loader: 'vue-style-loader',
-        options: { sourceMap }
-      })
     }
     return loaders
   }

lib/builder/webpack/vue-loader.mjs

@@ -1,44 +0,0 @@
-import postcssConfig from './postcss'
-import styleLoaderWrapper from './style-loader'
-
-export default function vueLoader({ isServer }) {
-  // https://vue-loader.vuejs.org/en
-  const styleLoader = styleLoaderWrapper({
-    isServer,
-    isVueLoader: true
-  })
-  const config = {
-    postcss: postcssConfig.call(this),
-    cssSourceMap: this.options.build.cssSourceMap,
-    preserveWhitespace: false,
-    loaders: {
-      js: {
-        loader: 'babel-loader',
-        options: this.getBabelOptions({ isServer })
-      },
-      // Note: do not nest the `postcss` option under `loaders`
-      css: styleLoader.call(this, 'css', []),
-      less: styleLoader.call(this, 'less', 'less-loader'),
-      scss: styleLoader.call(this, 'scss', 'sass-loader'),
-      sass: styleLoader.call(
-        this,
-        'sass',
-        { loader: 'sass-loader', options: { indentedSyntax: true } }
-      ),
-      stylus: styleLoader.call(this, 'stylus', 'stylus-loader'),
-      styl: styleLoader.call(this, 'stylus', 'stylus-loader')
-    },
-    template: {
-      doctype: 'html' // For pug, see https://github.com/vuejs/vue-loader/issues/55
-    },
-    transformToRequire: {
-      video: 'src',
-      source: 'src',
-      object: 'src',
-      embed: 'src'
-    }
-  }
-
-  // Return the config
-  return config
-}

lib/common/nuxt.config.js

@@ -59,6 +59,17 @@ export default {
     babel: {
       babelrc: false
     },
+    vue: {
+      template: {
+        doctype: 'html' // For pug, see https://github.com/vuejs/vue-loader/issues/55
+      },
+      transformAssetUrls: {
+        video: 'src',
+        source: 'src',
+        object: 'src',
+        embed: 'src'
+      }
+    },
     postcss: {},
     templates: [],
     watch: [],