Add RSS builder

.gitignore

@@ -10,6 +10,7 @@ playwright-report
 playwright/.cache
 
 public/robots.txt
+public/rss.xml
 public/sitemap.xml
 public/.index/*
 public/Users/Public/**

package.json

@@ -16,7 +16,7 @@
     "build:bundle-analyzer": "yarn build",
     "build:fs": "node scripts/fs2json.js --exclude .index --out public/.index/fs.9p.json ./public",
     "build:minify": "node scripts/minifyHtml.js && node scripts/minifyJs.js",
-    "build:prebuild": "node scripts/robots.js && node scripts/searchIndex.js && node scripts/preloadIcons.js && node scripts/cacheShortcuts.js && yarn build:fs",
+    "build:prebuild": "node scripts/robots.js && node scripts/rssBuilder.js && node scripts/searchIndex.js && node scripts/preloadIcons.js && node scripts/cacheShortcuts.js && yarn build:fs",
     "docker:build": "docker build -t daedalos .",
     "docker:run": "docker run -dp 3000:3000 --rm --name daedalos daedalos",
     "dev": "next dev",

scripts/rssBuilder.js

@@ -0,0 +1,68 @@
+const { createHash } = require("crypto");
+const { readdirSync, readFileSync, statSync, writeFileSync } = require("fs");
+const { basename, extname, join, relative } = require("path");
+const { author, description } = require("../package.json");
+
+const BLOG_EXTENSION = ".whtml";
+const PUBLIC_PATH = "public";
+
+const feedFiles = [];
+
+const getFeedFiles = (path) =>
+  readdirSync(path).forEach((entry) => {
+    const fullPath = join(path, entry);
+    const stats = statSync(fullPath);
+
+    if (stats.isDirectory()) {
+      getFeedFiles(fullPath);
+    } else if (extname(entry).toLowerCase() === BLOG_EXTENSION) {
+      feedFiles.push([fullPath, stats]);
+    }
+  });
+
+let lastBuildDate;
+
+const createRssFeedItems = (url) => {
+  feedFiles.length = 0;
+  getFeedFiles(join(PUBLIC_PATH, url));
+  feedFiles.sort(([, aStats], [, bStats]) => bStats.mtimeMs - aStats.mtimeMs);
+
+  lastBuildDate = feedFiles?.[0][1].mtime.toUTCString();
+
+  return feedFiles.map(([link, stats]) => {
+    const fileData = readFileSync(link);
+    const fileDataString = fileData.toString("utf8");
+    const itemDescription = fileDataString
+      .replace(/<[^>]*>?/gm, "")
+      .replace(/&nbsp;/g, " ")
+      .substring(0, 100)
+      .trim();
+
+    return [
+      "<item>",
+      `<title>${basename(link, BLOG_EXTENSION)}</title>`,
+      `<link>${encodeURI(`${author.url}/?url=${relative(PUBLIC_PATH, link).replace(/\\/g, "/")}`)}</link>`,
+      `<description>${itemDescription}${fileDataString.trim().length > 100 ? "..." : ""}</description>`,
+      `<guid isPermaLink="false">${createHash("md5").update(fileData).digest("hex")}</guid>`,
+      `<pubDate>${stats.mtime.toUTCString()}</pubDate>`,
+      "</item>",
+    ].join("");
+  });
+};
+
+const name = "daedalOS";
+const rss = [
+  '<?xml version="1.0" encoding="utf-8"?>',
+  '<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">',
+  "<channel>",
+  `<atom:link href="${author.url}/rss.xml" rel="self" type="application/rss+xml" />`,
+  `<title>${name}</title>`,
+  `<link>${author.url}</link>`,
+  `<description>${description}</description>`,
+  `<lastBuildDate>${lastBuildDate || new Date().toUTCString()}</lastBuildDate>`,
+  ...createRssFeedItems("Users/Public/Documents/Blog Posts"),
+  "</channel>",
+  "</rss>",
+].join("");
+
+writeFileSync(join(PUBLIC_PATH, "rss.xml"), rss, { flag: "w" });