cmds.distro.CmdInfo: Rename to cmds.platform.CmdInfo

Rename command "distro" to "pkg" together with "info", its last
remaining subcommand. "distro" is often used in the sense of "Linux
distribution", which would be too narrow for the targets jw-pkg could
theoretically support.

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

src/python/jw/pkg/cmds/CmdPlatform.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+from argparse import ArgumentParser
+
+from ..App import App
+from .Cmd import Cmd as CmdBase
+
+class CmdPlatform(CmdBase): # export
+
+    def __init__(self, parent: App) -> None:
+        super().__init__(parent, 'platform', help="Miscellaneous platform-related comamnds")
+        self._add_subcommands()
+
+    def add_arguments(self, p: ArgumentParser) -> None:
+        super().add_arguments(p)

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

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from ...lib.Distro import Distro
+    from ..CmdPlatform import CmdPlatform
+
+from ..Cmd import Cmd as Base
+
+class Cmd(Base): # export
+
+    def __init__(self, parent: CmdPlatform, name: str, help: str) -> None:
+        super().__init__(parent, name, help)

src/python/jw/pkg/cmds/platform/CmdInfo.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+
+from argparse import Namespace, ArgumentParser
+
+from ...lib.log import *
+from ...lib.Distro import Distro
+from ..Cmd import Cmd
+from ..CmdPlatform import CmdPlatform
+
+class CmdInfo(Cmd): # export
+
+    def __init__(self, parent: CmdPlatform) -> None:
+        super().__init__(parent, 'info', help='Retrieve information about target platform')
+
+    def add_arguments(self, parser: ArgumentParser) -> None:
+        super().add_arguments(parser)
+        parser.add_argument('--format', default='%{cascade}',
+                            help=f'Format string, expanding macros {", ".join(Distro.macros())}')
+
+    async def _run(self, args: Namespace) -> None:
+        print(self.app.distro.expand_macros(args.format))

src/python/jw/pkg/cmds/platform/Makefile

@@ -0,0 +1,5 @@
+TOPDIR = ../../../../../..
+PY_UPDATE_INIT_PY = false
+
+include $(TOPDIR)/make/proj.mk
+include $(JWBDIR)/make/py-mod.mk

src/python/jw/pkg/cmds/platform/__init__.py

@@ -0,0 +1,11 @@
+import importlib, pkgutil
+
+__all__ = []
+
+for finder, module_name, ispkg in pkgutil.iter_modules(__path__):
+    if not module_name.startswith("Cmd"):
+        continue
+    module = importlib.import_module(f".{module_name}", __name__)
+    cls = getattr(module, module_name)
+    globals()[module_name] = cls
+    __all__.append(module_name)