[postprocessor:metadata] implement 'mtime' option (#2307)

gallery_dl/path.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2021 Mike Fährmann
+# Copyright 2021-2022 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
@@ -10,10 +10,8 @@
 
 import os
 import re
-import time
 import shutil
 import functools
-from email.utils import mktime_tz, parsedate_tz
 from . import util, formatter, exception
 
 WINDOWS = util.WINDOWS
@@ -327,10 +325,4 @@ class PathFormat():
 
         mtime = self.kwdict.get("_mtime")
         if mtime:
-            # Set file modification time
-            try:
-                if isinstance(mtime, str):
-                    mtime = mktime_tz(parsedate_tz(mtime))
-                os.utime(self.realpath, (time.time(), mtime))
-            except Exception:
-                pass
+            util.set_mtime(self.realpath, mtime)

gallery_dl/postprocessor/metadata.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2019-2021 Mike Fährmann
+# Copyright 2019-2022 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
@@ -59,6 +59,8 @@ class MetadataPP(PostProcessor):
             events = events.split(",")
         job.register_hooks({event: self.run for event in events}, options)
 
+        self.mtime = options.get("mtime")
+
     def run(self, pathfmt):
         directory = self._directory(pathfmt)
         path = directory + self._filename(pathfmt)
@@ -71,6 +73,11 @@ class MetadataPP(PostProcessor):
             with open(path, "w", encoding="utf-8") as fp:
                 self.write(fp, pathfmt.kwdict)
 
+        if self.mtime:
+            mtime = pathfmt.kwdict.get("_mtime")
+            if mtime:
+                util.set_mtime(path, mtime)
+
     def _directory(self, pathfmt):
         return pathfmt.realdirectory
 

gallery_dl/util.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2017-2021 Mike Fährmann
+# Copyright 2017-2022 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
@@ -12,6 +12,7 @@ import re
 import os
 import sys
 import json
+import time
 import random
 import sqlite3
 import binascii
@@ -20,6 +21,7 @@ import functools
 import itertools
 import urllib.parse
 from http.cookiejar import Cookie
+from email.utils import mktime_tz, parsedate_tz
 from . import text, exception
 
 
@@ -272,6 +274,15 @@ def remove_directory(path):
         pass
 
 
+def set_mtime(path, mtime):
+    try:
+        if isinstance(mtime, str):
+            mtime = mktime_tz(parsedate_tz(mtime))
+        os.utime(path, (time.time(), mtime))
+    except Exception:
+        pass
+
+
 def load_cookiestxt(fp):
     """Parse a Netscape cookies.txt file and return a list of its Cookies"""
     cookies = []