feature[Vuex]: auto import vuex modules(#1815)

src/store/index.js

@@ -1,24 +1,24 @@
 import Vue from 'vue'
 import Vuex from 'vuex'
-import app from './modules/app'
-import errorLog from './modules/errorLog'
-import permission from './modules/permission'
-import tagsView from './modules/tagsView'
-import settings from './modules/settings'
-import user from './modules/user'
 import getters from './getters'
 
 Vue.use(Vuex)
 
+// https://webpack.js.org/guides/dependency-management/#requirecontext
+const modulesFiles = require.context('./modules', false, /\.js$/)
+
+// you do not need `import app from './modules/app'`
+// it will auto require all vuex module from modules file
+const modules = modulesFiles.keys().reduce((modules, modulePath) => {
+  // set './app.js' => 'app'
+  const moduleName = modulePath.replace(/^\.\/(.*)\.\w+$/, '$1')
+  const value = modulesFiles(modulePath)
+  modules[moduleName] = value.default
+  return modules
+}, {})
+
 const store = new Vuex.Store({
-  modules: {
-    app,
-    errorLog,
-    permission,
-    tagsView,
-    settings,
-    user
-  },
+  modules,
   getters
 })