feat: support spearate "loadComponent" util

lib/app/util.js

@@ -17,10 +17,3 @@ export function findPageForPath (pages, path) {
     frontmatter: {}
   }
 }
-
-// export function loadPage (key) {
-//   return import(${JSON.stringify(filepath)}).then(comp => {
-//     Vue.component(${JSON.stringify(componentName)}, comp.default)
-//     next()
-//   })
-// }

lib/prepare/codegen.js

@@ -21,19 +21,33 @@ exports.pathsToModuleCode = function (files) {
   return code
 }
 
+exports.getPageComponentsLoadingFile = function (pages) {
+  let code = 'const _l = {}\n'
+
+  code += pages.map(({ filepath, key }) => {
+    return `_l['${key}'] = () => import('${filepath}')`
+  }).join('\n')
+
+  code += `\n\nexport default function loadComponent(key) {
+   return _l[key]()
+}\n`
+  return code
+}
+
 exports.genRoutesFile = async function ({
   siteData: { pages },
   plugin
 }) {
-  function genRoute ({ filepath, path: pagePath, key: componentName }, index) {
+  await writeTemp('components-loader.js', exports.getPageComponentsLoadingFile(pages))
+
+  function genRoute ({ path: pagePath, key: componentName }, index) {
     let code = `
   {
     name: ${JSON.stringify(componentName)},
     path: ${JSON.stringify(pagePath)},
     component: ThemeLayout,
     beforeEnter: (to, from, next) => {
-      loadPageComponent("v-6e489b82c1bb8").then(next) 
-      import(${JSON.stringify(filepath)}).then(comp => {
+      loadComponent(${JSON.stringify(componentName)}).then(comp => {
         Vue.component(${JSON.stringify(componentName)}, comp.default)
         next()
       })
@@ -80,7 +94,8 @@ exports.genRoutesFile = async function ({
     `import Vue from 'vue'\n` +
     `import ThemeLayout from '@themeLayout'\n` +
     `import ThemeNotFound from '@themeNotFound'\n` +
-    `import { injectMixins, loadPageComponent } from '@app/util'\n` +
+    `import { injectMixins } from '@app/util'\n` +
+    `import loadComponent from '@temp/components-loader'\n` +
     `import rootMixins from '@temp/root-mixins'\n\n` +
     `injectMixins(ThemeLayout, rootMixins)\n` +
     `injectMixins(ThemeNotFound, rootMixins)\n\n` +