Allow IndexDownloader cmd to be None

Author: zooba

scripts/repartition-index.py

@@ -52,7 +52,7 @@ def add_arg(self, arg):
         raise ValueError("Unknown argument: " + arg)
 
     def execute(self, versions, context):
-        for _, data in IndexDownloader(self.source, lambda *a: a):
+        for _, data in IndexDownloader(None, self.source, lambda *a: a):
             versions.extend(data["versions"])
             if not self.recurse:
                 break

src/manage/urlutils.py

@@ -761,7 +761,8 @@ def __next__(self):
                 )
                 raise
 
-            verified = self.verify(verified, url, data, (self.cmd.source_settings or {}).get(s_url))
+            source_settings = (self.cmd.source_settings if self.cmd else None) or {}
+            verified = self.verify(verified, url, data, source_settings.get(s_url))
             parsed = json.loads(data)
 
             # The parsed index may also have its own verification parameters