pyproject.toml: Enforce import annotations style

Add new ruff rules and fix their fallout:

  future-annotations = true

   select = [
    "TC",  # type-checking import placement rules
    "FA",  # future annotations rules
   ]

This comprises:

  - Streamline imports and exports in cmds.xxx.Cmd

    - Import base class as "Base"

    - Export types Cmd and Parent via __all__

  - Move all types imported only for annotation below TYPE_CHECKING

  - Use "from __future__ import annotations" all over the place

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

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

@@ -1,19 +1,19 @@
 from __future__ import annotations
 
-from argparse import ArgumentParser
 from functools import cached_property
 from typing import TYPE_CHECKING
 
-from ...CmdBase import CmdBase
+from ...CmdBase import CmdBase as Base
 from ..CmdSecrets import CmdSecrets as Parent
-
-if TYPE_CHECKING:
-    from typing import Iterable
-    from .lib.base import Attrs
-
 from .lib.DistroContext import DistroContext
 
-class Cmd(CmdBase):  # export
+if TYPE_CHECKING:
+    from argparse import ArgumentParser
+    from typing import Iterable
+
+    from .lib.base import Attrs
+
+class Cmd(Base):  # export
 
     @cached_property
     def ctx(self) -> DistroContext:
@@ -49,3 +49,5 @@ class Cmd(CmdBase):  # export
     def add_arguments(self, parser: ArgumentParser) -> None:
         super().add_arguments(parser)
         parser.add_argument('packages', nargs = '*', help = 'Package names')
+
+__all__ = ['Parent', 'Cmd']

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

@@ -2,17 +2,15 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 
-from .Cmd import Cmd
+from .Cmd import Cmd, Parent
 from .lib.base import Attrs
 
 if TYPE_CHECKING:
     from argparse import ArgumentParser, Namespace
 
-    from ..CmdSecrets import CmdSecrets
-
 class CmdCompileTemplates(Cmd):  # export
 
-    def __init__(self, parent: CmdSecrets) -> None:
+    def __init__(self, parent: Parent) -> None:
         super().__init__(
             parent, 'compile-templates', help = 'Compile package template files'
         )

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

@@ -2,16 +2,14 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 
-from .Cmd import Cmd
+from .Cmd import Cmd, Parent
 
 if TYPE_CHECKING:
     from argparse import ArgumentParser, Namespace
 
-    from ..CmdSecrets import CmdSecrets
-
 class CmdInstall(Cmd):  # export
 
-    def __init__(self, parent: CmdSecrets) -> None:
+    def __init__(self, parent: Parent) -> None:
         super().__init__(
             parent,
             'install',

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

@@ -2,16 +2,14 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 
-from .Cmd import Cmd
+from .Cmd import Cmd, Parent
 
 if TYPE_CHECKING:
     from argparse import ArgumentParser, Namespace
 
-    from ..CmdSecrets import CmdSecrets
-
 class CmdListCompilationOutput(Cmd):  # export
 
-    def __init__(self, parent: CmdSecrets) -> None:
+    def __init__(self, parent: Parent) -> None:
         super().__init__(
             parent,
             'list-compilation-output',

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

@@ -2,16 +2,14 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 
-from .Cmd import Cmd
+from .Cmd import Cmd, Parent
 
 if TYPE_CHECKING:
     from argparse import ArgumentParser, Namespace
 
-    from ..CmdSecrets import CmdSecrets
-
 class CmdListSecrets(Cmd):  # export
 
-    def __init__(self, parent: CmdSecrets) -> None:
+    def __init__(self, parent: Parent) -> None:
         super().__init__(parent, 'list-secrets', help = 'List package secret files')
 
     def add_arguments(self, parser: ArgumentParser) -> None:

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

@@ -2,16 +2,14 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 
-from .Cmd import Cmd
+from .Cmd import Cmd, Parent
 
 if TYPE_CHECKING:
     from argparse import Namespace
 
-    from ..CmdSecrets import CmdSecrets
-
 class CmdListTemplates(Cmd):  # export
 
-    def __init__(self, parent: CmdSecrets) -> None:
+    def __init__(self, parent: Parent) -> None:
         super().__init__(parent, 'list-templates', help = 'List package template files')
 
     async def _run(self, args: Namespace) -> None:

src/python/jw/pkg/cmds/secrets/lib/DistroContext.py

@@ -8,10 +8,10 @@ from typing import TYPE_CHECKING
 
 from ....lib.log import DEBUG, NOTICE, WARNING, log
 from ....lib.ProcFilterGpg import ProcFilterGpg
-from .base import Attrs
 from .FilesContext import FilesContext
 
 if TYPE_CHECKING:
+    from .base import Attrs
     from typing import Iterable
 
     from ....lib.Distro import Distro

src/python/jw/pkg/cmds/secrets/lib/tar.py

@@ -7,11 +7,11 @@ from tarfile import TarFile
 from typing import TYPE_CHECKING, Callable
 
 from ....lib.log import DEBUG, log
+from ....lib.ExecContext import ExecContext
 
 if TYPE_CHECKING:
     from typing import Iterable
 
-    from ....lib.ExecContext import ExecContext
     from ....lib.FileContext import FileContext
 
 def filter(

src/python/jw/pkg/cmds/secrets/lib/util.py

@@ -3,10 +3,10 @@ from __future__ import annotations
 from typing import TYPE_CHECKING
 
 from ....lib.ec.Local import Local
-from ....lib.FileContext import FileContext
 from .FilesContext import FilesContext
 
 if TYPE_CHECKING:
+    from ....lib.FileContext import FileContext
     from .base import Attrs
 
 async def compile_template_file(