From d55c4640db7d924e155af2c6f3a17c9d263f6a18 Mon Sep 17 00:00:00 2001
From: Dominik Wombacher <dominik@wombacher.cc>
Date: Sat, 10 Jun 2023 01:48:33 +0200
Subject: [PATCH] feat: set modified time of generated pdf equal to related
 article

---
 pelican/plugins/pdf/pdf.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pelican/plugins/pdf/pdf.py b/pelican/plugins/pdf/pdf.py
index faac68d..0854439 100644
--- a/pelican/plugins/pdf/pdf.py
+++ b/pelican/plugins/pdf/pdf.py
@@ -9,6 +9,7 @@
 import logging
 import os
 import re
+import time
 
 from pelican import signals
 from pelican.generators import Generator
@@ -102,6 +103,9 @@ def _create_pdf(self, obj, output_path):
 
         self.pdfcreator.createPdf(text=(header + text), output=output_pdf)
 
+        if obj.date is not None:
+            self._set_file_utime(output_pdf, obj.date)
+
     def _get_intrasite_link_regex(self):
         intrasite_link_regex = self.settings["INTRASITE_LINK_REGEX"]
         regex = r"""
@@ -111,6 +115,11 @@ def _get_intrasite_link_regex(self):
         )
         return re.compile(regex, re.X)
 
+    def _set_file_utime(self, path, datetime):
+        """Set modified time (mtime) of specified file."""
+        mtime = time.mktime(datetime.timetuple())
+        os.utime(path, (mtime, mtime))
+
     def generate_context(self):
         pass