调整RSS方案，节省流量

Author: tangly1024

.gitignore

@@ -43,4 +43,5 @@ yarn-error.log*
 
 # sitemap
 /public/robots.txt
-/public/sitemap.xml
+/public/sitemap.xml
+/public/rss/*

lib/rss.js

@@ -1,3 +1,4 @@
+import fs from 'fs'
 import { Feed } from 'feed'
 import BLOG from '@/blog.config'
 import ReactDOMServer from 'react-dom/server'
@@ -44,5 +45,9 @@ export async function generateRss(posts) {
       date: new Date(post?.date?.start_date || post?.createdTime)
     })
   }
-  return feed.atom1()
+
+  fs.mkdirSync('./public/rss', { recursive: true })
+  fs.writeFileSync('./public/rss/feed.xml', feed.rss2())
+  fs.writeFileSync('./public/rss/atom.xml', feed.atom1())
+  fs.writeFileSync('./public/rss/feed.json', feed.json1())
 }

next.config.js

@@ -14,6 +14,16 @@ module.exports = withBundleAnalyzer({
       'images.unsplash.com'
     ]
   },
+  // 默认将feed重定向至 /public/rss/feed.xml
+  async redirects() {
+    return [
+      {
+        source: '/feed',
+        destination: '/rss/feed.xml',
+        permanent: true
+      }
+    ]
+  },
   async rewrites() {
     return [
       {

pages/feed/index.js

@@ -3,6 +3,7 @@ import { getPostBlocks } from '@/lib/notion'
 import { getGlobalNotionData } from '@/lib/notion/getNotionData'
 import * as ThemeMap from '@/themes'
 import { useGlobal } from '@/lib/global'
+import { generateRss } from '@/lib/rss'
 const Index = props => {
   const { theme } = useGlobal()
   const ThemeComponents = ThemeMap[theme]
@@ -12,8 +13,10 @@ const Index = props => {
 export async function getStaticProps() {
   const from = 'index'
   const props = await getGlobalNotionData({ from })
+
   const { siteInfo } = props
   props.posts = props.allPages.filter(page => page.type === 'Post' && page.status === 'Published')
+
   delete props.allPages
   const meta = {
     title: `${siteInfo?.title} | ${siteInfo?.description}`,
@@ -40,6 +43,9 @@ export async function getStaticProps() {
     }
   }
 
+  // 异步生成Feed订阅
+  generateRss(props?.latestPosts || [])
+
   return {
     props: {
       meta,