manager: kresctl: 'completion' command WIP

diff --git a/manager/knot_resolver_manager/cli/cmd/completion.py b/manager/knot_resolver_manager/cli/cmd/completion.py
new file mode 100644 (file)
index 0000000..601dd97
--- /dev/null
+++ b/manager/knot_resolver_manager/cli/cmd/completion.py
@@ -0,0 +1,32 @@
+import argparse
+from typing import Tuple, Type
+
+from knot_resolver_manager.cli.command import Command, CommandArgs, register_command
+
+
+class Shells:
+    BASH = 0
+    FISH = 1
+
+
+@register_command
+class CompletionCommand(Command):
+    def __init__(self, namespace: argparse.Namespace) -> None:
+        super().__init__(namespace)
+
+    @staticmethod
+    def register_args_subparser(
+        parser: "argparse._SubParsersAction[argparse.ArgumentParser]",
+    ) -> Tuple[argparse.ArgumentParser, "Type[Command]"]:
+        completion = parser.add_parser("completion", help="commands auto-completion")
+
+        shells_dest = "shell"
+        shells = completion.add_mutually_exclusive_group()
+        shells.add_argument("--bash", action="store_const", dest=shells_dest, const=Shells.BASH, default=Shells.BASH)
+        shells.add_argument("--fish", action="store_const", dest=shells_dest, const=Shells.FISH)
+
+        completion.add_argument("values_to_complete", type=str, nargs="+", help="values to auto-complete")
+        return completion, CompletionCommand
+
+    def run(self, args: CommandArgs) -> None:
+        pass