add dummy backups cli

pkgs/clan-cli/clan_cli/backups/create.py

@@ -0,0 +1,34 @@
+import argparse
+import pprint
+from pathlib import Path
+from typing import Optional
+
+from ..errors import ClanError
+
+
+def create_backup(flake_dir: Path, machine: Optional[str] = None, provider: Optional[str] = None) -> None:
+    if machine is None:
+        # TODO get all machines here
+        machines = [ "machine1", "machine2" ]
+    else:
+        machines = [ machine ]
+
+    if provider is None:
+        # TODO get all providers here
+        providers = [ "provider1", "provider2" ]
+    else:
+        providers = [ provider ]
+
+    print("would create backups for machines: ", machines, " with providers: ", providers) 
+
+
+def create_command(args: argparse.Namespace) -> None:
+    if args.flake is None:
+        raise ClanError("Could not find clan flake toplevel directory")
+    create_backup(Path(args.flake), machine=args.machine, provider=args.provider)
+
+
+def register_create_parser(parser: argparse.ArgumentParser) -> None:
+    parser.add_argument("--machine", type=str, help="machine in the flake to create backups of")
+    parser.add_argument("--provider", type=str, help="backup provider to use")
+    parser.set_defaults(func=create_command)