More robust indexify

indexify.js

@@ -4,10 +4,14 @@ const VIDEO_DIR = "videos";
 const DESCRIPTION_FILE = "description.json";
 const INDEX_FILE = "index.json";
 
+function isDirectory(path) {
+    return fs.lstatSync(path).isDirectory();
+}
+
 let info = [];
 
 for (let dir of fs.readdirSync(VIDEO_DIR)) {
-    if (dir ===  INDEX_FILE) {
+    if (!isDirectory(path.join(VIDEO_DIR, dir))) {
         continue;
     }
 
@@ -16,7 +20,7 @@ for (let dir of fs.readdirSync(VIDEO_DIR)) {
     description.videos = [];
 
     for (let subdir of fs.readdirSync(path.join(VIDEO_DIR, dir))) {
-        if (subdir === DESCRIPTION_FILE) {
+        if (!isDirectory(path.join(VIDEO_DIR, dir, subdir))) {
             continue;
         }