cli: Pass extra arguments to shell command

Author: cassava

cli/cloe_launch/__main__.py

@@ -176,9 +176,11 @@ def cli_exec(
     multiple=True,
     help="Options to pass to Conan for virtualrunenv generation",
 )
+@click.argument("shell_args", nargs=-1)
 @click.pass_obj
 def cli_shell(
     opt,
+    shell_args: List[str],
     profile: str,
     profile_path: str,
     preserve_env: bool,
@@ -193,7 +195,7 @@ def cli_shell(
     engine.conan_options = conan_option
 
     # Replace process with shell.
-    engine.shell(use_cache=cache)
+    engine.shell(shell_args, use_cache=cache)
 
 
 # _________________________________________________________________________

cli/cloe_launch/exec.py

@@ -159,7 +159,9 @@ def init_from_str(self, data: str) -> None:
                 self._data[kv[0]] = kv[1]
             except IndexError:
                 logging.error(
-                    "Error: cannot interpret environment key-value pair:", line
+                    "Error: cannot interpret environment key-value pair: {}".format(
+                        line
+                    )
                 )
 
     def __delitem__(self, key: str):
@@ -509,6 +511,7 @@ def clean(self) -> None:
 
     def shell(
         self,
+        arguments: List[str] = None,
         use_cache: bool = False,
     ) -> None:
         """Launch a SHELL with the environment variables adjusted."""
@@ -546,7 +549,10 @@ def shell(
 
         # Replace this process with the SHELL now.
         sys.stdout.flush()
-        os.execvpe(shell, [shell], env.as_dict())
+        cmd = [shell]
+        if arguments is not None:
+            cmd.extend(arguments)
+        os.execvpe(shell, cmd, env.as_dict())
 
     def exec(
         self,