From 02144a9afea47e1db75e9f66f20d40da7486319a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mark=20Randall=20Havens=20=E2=96=B3=20The=20Empathic=20Tec?=
 =?UTF-8?q?hnologist=20=E2=9F=81=20Doctor=20Who=2042?=
 <mark.r.havens@gmail.com>
Date: Sat, 8 Nov 2025 19:08:52 -0600
Subject: [PATCH] Update generate-index.mjs

---
 tools/generate-index.mjs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/generate-index.mjs b/tools/generate-index.mjs
index d468028..25d4015 100755
--- a/tools/generate-index.mjs
+++ b/tools/generate-index.mjs
@@ -75,6 +75,8 @@ async function collectFiles(relBase = "", flat = []) {
       title = parseTitle(raw, ext) || e.name.replace(new RegExp(`\\${ext}$`), "").trim();
     }
 
+    // Use birthtimeMs (creation time), fallback to mtimeMs
+    const ctime = st.birthtimeMs || st.mtimeMs;
     const mtime = dateFromName(e.name) ?? st.mtimeMs;
     const baseName = e.name.slice(0, e.name.lastIndexOf('.')).toLowerCase();
 
@@ -84,7 +86,8 @@ async function collectFiles(relBase = "", flat = []) {
       title,
       path: rel,
       ext,
-      mtime,
+      ctime,        // Creation timestamp
+      mtime,        // For sorting
       excerpt: extractExcerpt(raw, ext),
       tags: extractTags(raw, ext, pdfData),
       isIndex: baseName === "index",
@@ -97,7 +100,7 @@ async function collectFiles(relBase = "", flat = []) {
 (async () => {
   try {
     const flat = await collectFiles();
-    // Sections = dirs with non-index files
+    // Only include sections with non-index files in dropdown
     const sections = [...new Set(flat.filter(f => !f.isIndex).map(f => f.path.split("/")[0]))].sort();
     const allTags = [...new Set(flat.flatMap(f => f.tags))].sort();
     await fs.writeFile(OUT, JSON.stringify({ flat, sections, tags: allTags }, null, 2));