[postprocessor:ugoira] add 'mtime' option (#2307)

docs/configuration.rst

@@ -3161,7 +3161,7 @@ Type
 Default
     ``false``
 Description
-    Set modification times for generated metadata files
+    Set modification times of generated metadata files
     according to the accompanying downloaded file.
 
     Enabling this option will only have an effect
@@ -3306,6 +3306,16 @@ Description
     to reduce an odd width/height by 1 pixel and make them even.
 
 
+ugoira.mtime
+------------
+Type
+    ``bool``
+Default
+    ``false``
+Description
+    Set modification times of generated ugoira aniomations.
+
+
 ugoira.repeat-last-frame
 ------------------------
 Type

gallery_dl/postprocessor/ugoira.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2018-2021 Mike Fährmann
+# Copyright 2018-2022 Mike Fährmann
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
@@ -27,6 +27,7 @@ class UgoiraPP(PostProcessor):
         self.output = options.get("ffmpeg-output", True)
         self.delete = not options.get("keep-files", False)
         self.repeat = options.get("repeat-last-frame", True)
+        self.mtime = options.get("mtime")
 
         ffmpeg = options.get("ffmpeg-location")
         self.ffmpeg = util.expand_path(ffmpeg) if ffmpeg else "ffmpeg"
@@ -111,6 +112,10 @@ class UgoiraPP(PostProcessor):
                                exc.__class__.__name__, exc)
                 pathfmt.realpath = pathfmt.temppath
             else:
+                if self.mtime:
+                    mtime = pathfmt.kwdict.get("_mtime")
+                    if mtime:
+                        util.set_mtime(pathfmt.realpath, mtime)
                 if self.delete:
                     pathfmt.delete = True
                 else: