lib.ExecContext.__init__(): Add parameter uri

Take a positional uri argument to the constructor of ExecContext,
forcing SSHClient to follow suit. The latter was instantiated with a
hostname as only argument up to now, which still works as a special
case of an uri.

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

src/python/jw/pkg/lib/ExecContext.py

@@ -11,7 +11,8 @@ class Result(NamedTuple):
 
 class ExecContext(abc.ABC):
 
-    def __init__(self, interactive: bool=True, verbose_default=False):
+    def __init__(self, uri: str, interactive: bool=True, verbose_default=False):
+        self.__uri = uri
         self.__interactive = interactive
         self.__verbose_default = verbose_default
         assert verbose_default is not None
@@ -21,6 +22,10 @@ class ExecContext(abc.ABC):
             return verbose
         return self.__verbose_default
 
+    @property
+    def uri(self) -> str:
+        return self.__uri
+
     @property
     def interactive(self) -> bool:
         return self.__interactive

src/python/jw/pkg/lib/SSHClient.py

@@ -7,14 +7,16 @@ import os, abc, shlex, sys
 from .util import run_cmd
 from .log import *
 from .ExecContext import ExecContext, Result
+from urllib.parse import urlparse
 
 class SSHClient(ExecContext):
 
-    def __init__(self, hostname: str) -> None:
-        super().__init__(interactive=False, verbose_default=False)
-        self.___ssh = None
-        self.__hostname = hostname
-        self.__password: str|None = None
+    def __init__(self, uri: str, *args, **kwargs) -> None:
+        super().__init__(uri=uri, *args, **kwargs)
+        parsed = urlparse(uri)
+        self.__hostname = parsed.hostname
+        self.__password: parsed.password
+        self.__username = parsed.username
 
     @abc.abstractmethod
     async def _run_cmd(self, cmd: list[str]) -> Result:
@@ -101,8 +103,8 @@ class SSHClient(ExecContext):
 
 class SSHClientInternal(SSHClient): # export
 
-    def __init__(self, hostname: str) -> None:
-        super().__init__(hostname=hostname)
+    def __init__(self, *args, **kwargs) -> None:
+        super().__init__(*args, **kwargs)
         self.__timeout: float|None = None # Untested
         self.___ssh: Any|None = None
 
@@ -136,10 +138,10 @@ class SSHClientInternal(SSHClient): # export
 
 class SSHClientCmd(SSHClient): # export
 
-    def __init__(self, hostname: str) -> None:
+    def __init__(self, *args, **kwargs) -> None:
         self.__askpass: str|None = None
         self.__askpass_orig: dict[str, str|None] = dict()
-        super().__init__(hostname=hostname)
+        super().__init__(*args, **kwargs)
 
     def __del__(self):
         for key, val in self.__askpass_orig.items():

src/python/jw/pkg/lib/ec/Local.py

@@ -11,6 +11,9 @@ from ..util import pretty_cmd
 
 class Local(Base):
 
+    def __init__(self, uri='local', *args, **kwargs) -> None:
+        super().__init__(uri, *args, **kwargs)
+
     async def _run(
         self,
         args: list[str],