Add page metadata

Author: parente

generate.py

@@ -37,7 +37,8 @@
 class Page(TypedDict):
     """A page on the site."""
 
-    # Brief introductory comment above at the start of a page
+    # Author of the page, if different from SITE_AUTHOR
+    author: NotRequired[str]
     # Brief introductory comment above the start of a page *in HTML*
     author_comment: NotRequired[str]
     # YYYY-MM-DD date of the page
@@ -182,6 +183,9 @@ def execute(self, path: str, page: Page):
             meta[key] = "".join(value)
         page.update(meta)
 
+        # Populate fields expected by the templates
+        if "author" not in page:
+            page["author"] = SITE_AUTHOR
         if "excerpt" not in page:
             page["excerpt"] = self._build_excerpt(text)
         page["src"] = path

templates/page.mako

@@ -2,6 +2,11 @@
 <%inherit file="shell.mako"/>
 <%block name="header">
   <title>${page['title']} - ${site_name}</title>
+  <meta name="description" content="${page['excerpt']}" />
+  <meta name="author" content="${page['author']}" />
+  % if 'date' in page:
+    <meta property="article:published_time" content="${page['date']}" />
+  % endif
 </%block>
 
 <%block name="mainColumn">