refactor(easycom): add autoscan option

packages/uni-cli-shared/lib/pages.js

@@ -352,7 +352,17 @@ function initAutoImportScanComponents () {
   refreshAutoComponentMap()
 }
 
-function initAutoImportComponents (usingAutoImportComponents = {}) {
+const _toString = Object.prototype.toString
+
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function initAutoImportComponents (easycom = {}) {
+  let usingAutoImportComponents = easycom.custom || easycom || {}
+  if (!isPlainObject(usingAutoImportComponents)) {
+    usingAutoImportComponents = {}
+  }
   // 目前仅 mp-weixin 内置支持 page-meta 等组件
   if (process.env.UNI_PLATFORM !== 'mp-weixin') {
     if (!usingAutoImportComponents['^page-meta$']) {
@@ -415,10 +425,13 @@ function parseUsingAutoImportComponents (usingAutoImportComponents) {
   const autoImportComponents = []
   if (usingAutoImportComponents) {
     Object.keys(usingAutoImportComponents).forEach(pattern => {
+      const replacement = usingAutoImportComponents[pattern]
+      if (replacement && typeof replacement === 'string') {
         autoImportComponents.push({
           pattern: new RegExp(pattern),
-        replacement: usingAutoImportComponents[pattern]
+          replacement: replacement
         })
+      }
     })
   }
   return autoImportComponents

packages/vue-cli-plugin-uni/lib/env.js

@@ -316,8 +316,11 @@ const {
   initAutoImportScanComponents
 } = require('@dcloudio/uni-cli-shared/lib/pages')
 
-initAutoImportScanComponents()
+process.UNI_AUTO_SCAN_COMPONENTS = !(pagesJsonObj.easycom && pagesJsonObj.easycom.autoscan === false)
 initAutoImportComponents(pagesJsonObj.easycom)
+if (process.UNI_AUTO_SCAN_COMPONENTS) {
+  initAutoImportScanComponents()
+}
 
 runByHBuilderX && console.log(`正在编译中...`)
 

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

@@ -13,9 +13,11 @@ class WebpackUniAppPlugin {
     compiler.hooks.invalid.tap('webpack-uni-app-invalid', (fileName, changeTime) => {
       if (fileName && typeof fileName === 'string') {
         if (fileName.indexOf('.vue') !== -1 || fileName.indexOf('.nvue') !== -1) {
+          if (process.UNI_AUTO_SCAN_COMPONENTS) {
             initAutoImportScanComponents()
           }
         }
+      }
     })
   }
 }

packages/webpack-uni-pages-loader/lib/index-new.js

@@ -56,6 +56,7 @@ module.exports = function (content) {
   })
 
   // 组件自动导入配置
+  process.UNI_AUTO_SCAN_COMPONENTS = !(pagesJson.easycom && pagesJson.easycom.autoscan === false)
   initAutoImportComponents(pagesJson.easycom)
 
   // TODO 与 usingComponents 放在一块读取设置