fix

lib/robots.txt.js

@@ -16,9 +16,10 @@ export async function generateRobotsTxt() {
   
     `
   try {
-    fs.writeFileSync('robots.txt', content)
+    fs.mkdirSync('./public', { recursive: true })
     fs.writeFileSync('./public/robots.txt', content)
   } catch (error) {
-    console.warn('无法写入文件', error)
+    // 在vercel运行环境是只读的，这里会报错；
+    // 但在vercel编译阶段、或VPS等其他平台这行代码会成功执行
   }
 }

lib/rss.js

@@ -55,11 +55,9 @@ export async function generateRss(posts) {
     fs.writeFileSync('./public/rss/feed.xml', feed.rss2())
     fs.writeFileSync('./public/rss/atom.xml', feed.atom1())
     fs.writeFileSync('./public/rss/feed.json', feed.json1())
-    fs.mkdirSync('./rss', { recursive: true })
-    fs.writeFileSync('./rss/feed.xml', feed.rss2())
-    fs.writeFileSync('./rss/atom.xml', feed.atom1())
-    fs.writeFileSync('./rss/feed.json', feed.json1())
   } catch (error) {
-    console.warn('无法写入文件', error)
+    // 在vercel运行环境是只读的，这里会报错；
+    // 但在vercel编译阶段、或VPS等其他平台这行代码会成功执行
+    // RSS被高频词访问将大量消耗服务端资源，故作为静态文件
   }
 }

pages/index.js

@@ -5,7 +5,6 @@ import * as ThemeMap from '@/themes'
 import { useGlobal } from '@/lib/global'
 import { generateRss } from '@/lib/rss'
 import { generateRobotsTxt } from '@/lib/robots.txt'
-import { generateSitemapXml } from '@/lib/sitemap.xml'
 const Index = props => {
   const { theme } = useGlobal()
   const ThemeComponents = ThemeMap[theme]
@@ -46,8 +45,6 @@ export async function getStaticProps() {
 
   // 生成robotTxt
   generateRobotsTxt()
-  // 生成sitemap.xml
-  generateSitemapXml({ allPages: props.allPages })
   // 生成Feed订阅
   if (JSON.parse(BLOG.ENABLE_RSS)) {
     generateRss(props?.latestPosts || [])

pages/sitemap.xml.js

@@ -0,0 +1,60 @@
+// pages/sitemap.xml.js
+import { getServerSideSitemap } from 'next-sitemap'
+import { getGlobalNotionData } from '@/lib/notion/getNotionData'
+import BLOG from '@/blog.config'
+
+export const getServerSideProps = async (ctx) => {
+  const { allPages } = await getGlobalNotionData({ from: 'rss' })
+  const defaultFields = [
+    {
+      loc: `${BLOG.LINK}`,
+      lastmod: new Date().toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }, {
+      loc: `${BLOG.LINK}/archive`,
+      lastmod: new Date().toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }, {
+      loc: `${BLOG.LINK}/category`,
+      lastmod: new Date().toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }, {
+      loc: `${BLOG.LINK}/feed`,
+      lastmod: new Date().toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }, {
+      loc: `${BLOG.LINK}/search`,
+      lastmod: new Date().toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }, {
+      loc: `${BLOG.LINK}/tag`,
+      lastmod: new Date().toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }
+  ]
+  const postFields = allPages?.map(post => {
+    return {
+      loc: `${BLOG.LINK}/${post.slug}`,
+      lastmod: new Date(post?.date?.start_date || post?.createdTime).toISOString().split('T')[0],
+      changefreq: 'daily',
+      priority: '0.7'
+    }
+  })
+  const fields = defaultFields.concat(postFields)
+
+  // 缓存
+  ctx.res.setHeader(
+    'Cache-Control',
+    'public, max-age=3600, stale-while-revalidate=59'
+  )
+
+  return getServerSideSitemap(ctx, fields)
+}
+
+export default () => { }