add page modified time to the template

incorporealcms/pages.py

@@ -1,8 +1,11 @@
 """General page functionality."""
+import datetime
 import logging
+import os
 
 import markdown
 from flask import Blueprint, Markup, abort, current_app as app, render_template
+from tzlocal import get_localzone
 
 logger = logging.getLogger(__name__)
 
@@ -19,6 +22,7 @@ def display_page(path):
     try:
         with app.open_instance_resource(resolved_path, 'r') as entry_file:
             logger.debug("file '%s' found", resolved_path)
+            mtime = datetime.datetime.fromtimestamp(os.path.getmtime(entry_file.name), get_localzone())
             entry = entry_file.read()
     except FileNotFoundError:
         logger.warning("requested path '%s' (resolved path '%s') not found!", path, resolved_path)
@@ -27,7 +31,7 @@ def display_page(path):
         content = Markup(md.convert(entry))
         logger.debug("file metadata: %s", md.Meta)
         title = " ".join(md.Meta.get('title')) if md.Meta.get('title') else ""
-        return render_template('base.html', title=title, content=content)
+        return render_template('base.html', title=title, content=content, mtime=mtime.strftime('%Y-%m-%d %H:%M:%S %Z'))
 
 
 def page_file_resolver(path):

incorporealcms/templates/base.html

@@ -3,3 +3,6 @@
 <section class="content">
 {{ content }}
 </section>
+<footer>
+    <i>Last modified: {{ mtime }}</i>
+</footer>

tests/test_pages.py

@@ -1,4 +1,6 @@
 """Test page views and helper methods."""
+import re
+
 from incorporealcms.pages import page_file_resolver
 
 
@@ -36,3 +38,9 @@ def test_page_without_title_metadata(client):
     assert response.status_code == 200
     assert b'<title>incorporeal.org</title>' in response.data
     assert b'<h1>this page doesn\'t have a title!</h1>' in response.data
+
+
+def test_page_has_modified_timestamp(client):
+    response = client.get('/')
+    assert response.status_code == 200
+    assert re.search(r'Last modified: ....-..-.. ..:..:.. ...', response.data.decode()) is not None