cmds.secrets.CmdInstall: Add command

Support
jw-pkg secrets install mypasswords.tar.gpg [package-1 [package-2 ...]]
Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/cmds/secrets/CmdInstall.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import annotations
+from typing import TYPE_CHECKING
+
+from .Cmd import Cmd
+
+if TYPE_CHECKING:
+    from ..CmdSecrets import CmdSecrets
+    from argparse import Namespace, ArgumentParser
+
+class CmdInstall(Cmd): # export
+
+    def __init__(self, parent: CmdSecrets) -> None:
+        super().__init__(parent, 'install', help='Install secrets from various sources as static secrets onto the target')
+
+    def add_arguments(self, parser: ArgumentParser) -> None:
+        parser.add_argument('src', help='URI of secret source')
+        parser.add_argument('--only-missing', action='store_true', default=False, help='Install only secrets not already on the target')
+        super().add_arguments(parser)
+
+    async def _run(self, args: Namespace) -> None:
+        packages = [] if args.packages == ['all'] else args.packages
+        await self.ctx.install(args.src, packages, args.only_missing)