Guard public channel readiness in systemd tooling

channel_inventory.py

@@ -51,6 +51,35 @@ def get_channel_ids() -> list[int]:
     return [int(channel["id"]) for channel in iter_channels()]
 
 
+def get_public_channel_ids(
+    selected_channel_ids: Iterable[int] | None = None,
+    *,
+    client_visible_only: bool = False,
+) -> list[int]:
+    selected = None if selected_channel_ids is None else {int(channel_id) for channel_id in selected_channel_ids}
+    result: list[int] = []
+
+    for channel in iter_channels():
+        channel_id = int(channel["id"])
+        if selected is not None and channel_id not in selected:
+            continue
+        if not channel.get("public"):
+            continue
+        if client_visible_only and not channel.get("client_visible"):
+            continue
+        result.append(channel_id)
+
+    return result
+
+
+def has_public_channel(
+    selected_channel_ids: Iterable[int] | None = None,
+    *,
+    client_visible_only: bool = False,
+) -> bool:
+    return bool(get_public_channel_ids(selected_channel_ids, client_visible_only=client_visible_only))
+
+
 def get_channel_map() -> dict[int, dict[int, str]]:
     result: dict[int, dict[int, str]] = {}
     for channel in iter_channels():