fix(v3): remove style loader (service)

packages/vue-cli-plugin-uni/lib/app-plus/index.js

@@ -110,6 +110,15 @@ const v3 = {
       }]
     })
 
+    if (isAppService) {
+      rules.push({
+        test: [/\.css$/, /\.p(ost)?css$/, /\.scss$/, /\.sass$/, /\.less$/, /\.styl(us)?$/],
+        use: [{
+          loader: path.resolve(__dirname, '../../packages/webpack-uni-app-loader/service/style.js')
+        }]
+      })
+    }
+
     const entry = {}
     if (isAppService) {
       entry['app-service'] = path.resolve(process.env.UNI_INPUT_DIR, getMainEntry())
@@ -281,6 +290,12 @@ const v3 = {
       }
     }
 
+    if (isAppService) { // service 层移除 css 相关
+      ['css', 'postcss', 'scss', 'sass', 'less', 'stylus'].forEach(cssLang => {
+        webpackConfig.module.rules.delete(cssLang)
+      })
+    }
+
     webpackConfig.plugins.delete('hmr')
     webpackConfig.plugins.delete('html')
     webpackConfig.plugins.delete('copy')

packages/vue-cli-plugin-uni/packages/webpack-uni-app-loader/service/style.js

+module.exports = function(source, map) {
+  console.warn(
+    `App平台 v3 模式暂不支持在 js 文件中引用"${this._module && this._module.rawRequest || this.resourcePath}"`
+  )
+  return ''
+}

packages/vue-cli-plugin-uni/packages/webpack-uni-app-loader/view/main.js

@@ -103,7 +103,7 @@ module.exports = function(source, map) {
 import 'uni-pages?${JSON.stringify({type:'view'})}'
 function initView(){
     ${getStylesCode(this)}
-    injectStyles()
+    typeof injectStyles ==='function' && injectStyles()
     ${getDefineComponents(parseComponents(source, traverse)).join('\n')}
     UniViewJSBridge.publishHandler('webviewReady')
 }