jw.pkg.cmds.distro.CmdDelete: Add command

Add command to delete named packages, along with an implementation
for OpenSUSE.

Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/cmds/distro/CmdDelete.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+
+from argparse import Namespace, ArgumentParser
+
+from .Cmd import Cmd
+from ..CmdDistro import CmdDistro
+
+class CmdDelete(Cmd): # export
+
+    def __init__(self, parent: CmdDistro) -> None:
+        super().__init__(parent, 'delete', help="Delete packages by name")
+
+    def add_arguments(self, parser: ArgumentParser) -> None:
+        super().add_arguments(parser)
+        parser.add_argument("packages", nargs="*", help="Names of packages to be deleted")
+
+    async def _run(self, args: Namespace) -> None:
+        return await self._backend.run(args)

src/python/jw/pkg/cmds/distro/backend/BeDelete.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+import abc
+from argparse import Namespace
+
+from .Backend import Backend as Base
+from ..CmdDelete import CmdDelete as Parent
+
+class BeDelete(Base):
+
+    def __init__(self, parent: Parent):
+        super().__init__(parent)
+
+    @abc.abstractmethod
+    async def run(self, args: Namespace) -> None:
+        pass

src/python/jw/pkg/cmds/distro/backend/suse/Delete.py

@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+
+from argparse import Namespace
+
+from ...Cmd import Cmd
+from ..BeDelete import BeDelete as Base
+
+class Delete(Base):
+
+    def __init__(self, parent: Cmd):
+        super().__init__(parent)
+
+    async def run(self, args: Namespace):
+        return await self.util.rpm('-e', *args.packages, sudo=True)