Added --format

zeit-dl

@@ -2,6 +2,7 @@
 
 import os
 import re
+from datetime import datetime
 import argparse
 from playwright.sync_api import sync_playwright
 
@@ -18,6 +19,7 @@ def main():
     parser.add_argument('-i', '--issue', type=str, help='Ausgabe (meistens DD.MM.YYYY)')
     parser.add_argument('-t', '--type', type=str, choices=['pdf', 'epub', 'mp3'], default='pdf', help='Dateiformat')
     parser.add_argument('-f', '--force', action='store_true', help='Redownload file even if already present')
+    parser.add_argument('--format', type=str, default="{abo}_{issue}.{ext}", help='Filename format')
     args = parser.parse_args()
     if args.user is None or args.pwd is None:
         parser.error('You need to supply a username and password')
@@ -55,7 +57,14 @@ def download(page, args):
             page.goto(EPAPER+'/abo/'+args.abo+'/'+args.issue)
             issue = args.issue
 
-        filename = '{}-{}.{}'.format(args.abo, issue, args.type)
+        try:
+            published = datetime.strptime(issue, '%d.%m.%Y')
+        except ValueError:
+            published = None
+        filename = args.format.format(abo=args.abo, issue=issue, ext=args.type)
+        if published is not None:
+            filename = published.strftime(filename)
+
         filepath = os.path.join(args.out, filename)
         if os.path.isfile(filepath):
             print('Issue already exists:', filepath)