From b33f13ccaf4ec14a94ee0ee467dda04cf4981d00 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Mon, 01 Jan 2024 22:20:34 +0000
Subject: [PATCH] fix: dont show last page if folder

---
 quartz/plugins/emitters/contentIndex.ts |   43 ++++++++++++++++++++++++++++++++++---------
 1 files changed, 34 insertions(+), 9 deletions(-)

diff --git a/quartz/plugins/emitters/contentIndex.ts b/quartz/plugins/emitters/contentIndex.ts
index f24ae6d..bc4c6c3 100644
--- a/quartz/plugins/emitters/contentIndex.ts
+++ b/quartz/plugins/emitters/contentIndex.ts
@@ -1,8 +1,10 @@
+import { Root } from "hast"
 import { GlobalConfiguration } from "../../cfg"
 import { getDate } from "../../components/Date"
 import { escapeHTML } from "../../util/escape"
-import { FilePath, FullSlug, SimpleSlug, simplifySlug } from "../../util/path"
+import { FilePath, FullSlug, SimpleSlug, joinSegments, simplifySlug } from "../../util/path"
 import { QuartzEmitterPlugin } from "../types"
+import { toHtml } from "hast-util-to-html"
 import path from "path"
 
 export type ContentIndex = Map<FullSlug, ContentDetails>
@@ -11,6 +13,7 @@
   links: SimpleSlug[]
   tags: string[]
   content: string
+  richContent?: string
   date?: Date
   description?: string
 }
@@ -18,19 +21,23 @@
 interface Options {
   enableSiteMap: boolean
   enableRSS: boolean
+  rssLimit?: number
+  rssFullHtml: boolean
   includeEmptyFiles: boolean
 }
 
 const defaultOptions: Options = {
   enableSiteMap: true,
   enableRSS: true,
+  rssLimit: 10,
+  rssFullHtml: false,
   includeEmptyFiles: true,
 }
 
 function generateSiteMap(cfg: GlobalConfiguration, idx: ContentIndex): string {
   const base = cfg.baseUrl ?? ""
   const createURLEntry = (slug: SimpleSlug, content: ContentDetails): string => `<url>
-    <loc>https://${base}/${encodeURI(slug)}</loc>
+    <loc>https://${joinSegments(base, encodeURI(slug))}</loc>
     <lastmod>${content.date?.toISOString()}</lastmod>
   </url>`
   const urls = Array.from(idx)
@@ -39,27 +46,42 @@
   return `<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">${urls}</urlset>`
 }
 
-function generateRSSFeed(cfg: GlobalConfiguration, idx: ContentIndex): string {
+function generateRSSFeed(cfg: GlobalConfiguration, idx: ContentIndex, limit?: number): string {
   const base = cfg.baseUrl ?? ""
   const root = `https://${base}`
 
   const createURLEntry = (slug: SimpleSlug, content: ContentDetails): string => `<item>
     <title>${escapeHTML(content.title)}</title>
-    <link>${root}/${encodeURI(slug)}</link>
-    <guid>${root}/${encodeURI(slug)}</guid>
-    <description>${content.description}</description>
+    <link>${joinSegments(root, encodeURI(slug))}</link>
+    <guid>${joinSegments(root, encodeURI(slug))}</guid>
+    <description>${content.richContent ?? content.description}</description>
     <pubDate>${content.date?.toUTCString()}</pubDate>
   </item>`
 
   const items = Array.from(idx)
+    .sort(([_, f1], [__, f2]) => {
+      if (f1.date && f2.date) {
+        return f2.date.getTime() - f1.date.getTime()
+      } else if (f1.date && !f2.date) {
+        return -1
+      } else if (!f1.date && f2.date) {
+        return 1
+      }
+
+      return f1.title.localeCompare(f2.title)
+    })
     .map(([slug, content]) => createURLEntry(simplifySlug(slug), content))
+    .slice(0, limit ?? idx.size)
     .join("")
+
   return `<?xml version="1.0" encoding="UTF-8" ?>
 <rss version="2.0">
     <channel>
       <title>${escapeHTML(cfg.pageTitle)}</title>
       <link>${root}</link>
-      <description>Recent content on ${cfg.pageTitle}</description>
+      <description>${!!limit ? `Last ${limit} notes` : "Recent notes"} on ${escapeHTML(
+        cfg.pageTitle,
+      )}</description>
       <generator>Quartz -- quartz.jzhao.xyz</generator>
       ${items}
     </channel>
@@ -74,7 +96,7 @@
       const cfg = ctx.cfg.configuration
       const emitted: FilePath[] = []
       const linkIndex: ContentIndex = new Map()
-      for (const [_tree, file] of content) {
+      for (const [tree, file] of content) {
         const slug = file.data.slug!
         const date = getDate(ctx.cfg.configuration, file.data) ?? new Date()
         if (opts?.includeEmptyFiles || (file.data.text && file.data.text !== "")) {
@@ -83,6 +105,9 @@
             links: file.data.links ?? [],
             tags: file.data.frontmatter?.tags ?? [],
             content: file.data.text ?? "",
+            richContent: opts?.rssFullHtml
+              ? escapeHTML(toHtml(tree as Root, { allowDangerousHtml: true }))
+              : undefined,
             date: date,
             description: file.data.description ?? "",
           })
@@ -102,7 +127,7 @@
       if (opts?.enableRSS) {
         emitted.push(
           await emit({
-            content: generateRSSFeed(cfg, linkIndex),
+            content: generateRSSFeed(cfg, linkIndex, opts.rssLimit),
             slug: "index" as FullSlug,
             ext: ".xml",
           }),

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