Apply common configuration changes to each mailing list

mailman_sync.py

@@ -8,10 +8,52 @@ import argparse
 import os
 from pathlib import Path
 import subprocess
+import tempfile
 
 import requests
 
 
+def config_list(mailman_bin: Path, mailing_list: str):
+    config_changes = """
+# TODO: set real_name, moderator, subject prefix, and reply-to address
+from_is_list = 1
+anonymous_list = 1
+first_strip_reply_to = 1
+reply_goes_to_list = 2
+
+# quiet member management
+send_reminders = 0
+send_welcome_msg = 0
+send_goodbye_msg = 0
+
+new_member_options = 272
+advertised = 0
+private_roster = 2  # only admins can view the roster
+default_member_moderation = 1
+
+generic_nonmember_action = 3  # discard non-member emails
+forward_auto_discards = 0  # don't notify admin about discards
+"""
+
+    with tempfile.NamedTemporaryFile("w", suffix=".py") as config_file:
+        config_file.write(config_changes)
+        config_file.flush()
+        output = subprocess.run(
+            [
+                mailman_bin / "config_list",
+                "--verbose",
+                "--inputfile",
+                config_file.name,
+                mailing_list,
+            ],
+            encoding="ascii",
+            capture_output=True,
+            check=True,
+        )
+        for line in output.stderr.splitlines():
+            print(f"[Configuring {mailing_list}] {line}")
+
+
 def sync_members(
     mailman_bin: Path, mailing_list: str, members: list[str], dry_run: bool
 ):
@@ -55,6 +97,8 @@ def main(mailman_bin: Path, api: str, api_auth: str, list_suffix: str, dry_run:
     for name, members in certification_lists.items():
         list_name = name + list_suffix
         if list_name in existing_lists:
+            print(f"Configuring/syncing {list_name}...")
+            config_list(mailman_bin, list_name)
             sync_members(mailman_bin, list_name, members, dry_run)
         else:
             print(f"Skipping {list_name}, as it does not exist in Mailman")