jw.pkg.cmds.distro.backend: Add module

Add directory to host distro backends.

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

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

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+
+import os
+
+from ....lib.util import run_cmd
+from ..Cmd import Cmd
+
+class BackendCmd:
+
+    def __init__(self, parent: Cmd):
+        self.__parent = parent
+
+    async def _sudo(self, cmd: list[str], mod_env: dict[str, str] = {}):
+        env: dict[str, str]|None = None
+        cmd_input: str|None = None
+        if mod_env:
+            env = os.environ.copy()
+            env.update(mod_env)
+        cmdline = []
+        if os.getuid() != 0:
+            cmdline.append('/usr/bin/sudo')
+            if env is not None:
+                cmdline.append('--preserve-env=' + ','.join(mod_env.keys()))
+        cmdline.extend(cmd)
+        if self.interactive:
+            cmd_input = "mode:interactive"
+        stdout, stderr = await run_cmd(*cmdline, throw=True, verbose=True, env=env, cmd_input=cmd_input)
+
+    @property
+    def parent(self):
+        return self.__parent
+
+    @property
+    def interactive(self) -> bool:
+        return self.__parent.interactive

src/python/jw/pkg/cmds/distro/backend/Makefile

@@ -0,0 +1,4 @@
+TOPDIR = ../../../../../../..
+
+include $(TOPDIR)/make/proj.mk
+include $(JWBDIR)/make/py-mod.mk