Add a new proc.Executor 'subcommand' method (4f68e8d9) · Commits · Dom Sekotill / Behave Utils

behave_utils/proc.py

+14 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@ from __future__ import annotations

		import io
		import sys
		from copy import copy
		from os import PathLike
		from os import fspath
		from os import write as fdwrite
		@@ -174,6 +175,7 @@ class Executor(list[Argument]):
		"""

		T = TypeVar("T")
		E = TypeVar("E", bound="Executor")

		def __init__(self, *cmd: Argument):
		self[:] = cmd
		@@ -277,3 +279,15 @@ class Executor(list[Argument]):
		Override to amend command arguments and kwargs for exec_io() prior to execution
		"""
		return cmd

		def subcommand(self: E, *args: Argument) -> E:
		"""
		Return a new Executor instance of the same class with additional arguments appended

		The returned instance is created as a shallow copy; if attribute values need to be
		copied, subclasses must implement __copy__().
		(see https://docs.python.org/3/library/copy.html)
		"""
		new = copy(self)
		new.extend(args)
		return new