1 files changed, 11 insertions, 6 deletions
diff --git a/build.py b/build.py
index 3e72993..5c2c69f 100644
--- a/build.py
+++ b/build.py
@@ -1,10 +1,13 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: 0BSD
+# Copyright © Paweł Redman
 
 import itertools as it
 import json
 import os
 import shutil
 from argparse import ArgumentParser
+from collections.abc import Iterable
 from dataclasses import dataclass
 from datetime import datetime
 from pathlib import Path
@@ -78,12 +81,13 @@ class Builder:
         payload_path.parent.mkdir(parents=True, exist_ok=True)
 
         # Maybe sorting/filtering should be done in Typst?
-        pages = [
-            page
-            for page in pages
-            if page.date is not None
-        ]
-        pages.sort(key=lambda page: page.date, reverse=True)
+        pages = [page for page in pages if page.date is not None]
+
+        def page_date(page: CompiledPage) -> datetime:
+            assert page.date is not None
+            return page.date
+
+        pages.sort(key=page_date, reverse=True)
 
         with payload_path.open('w') as file:
             payload = {
@@ -137,6 +141,7 @@ def main() -> None:
 
     builder = Builder(site_dir, static_dir, public_dir, temp_dir)
 
+    iterator: Iterable[object]
     if args.watch:
         watch_filter = DefaultFilter(ignore_paths=[temp_dir])
         iterator = it.chain(range(1), watch(site_dir, watch_filter=watch_filter))