35 lines
1.4 KiB
Python
35 lines
1.4 KiB
Python
import os
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import subprocess
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import platform
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def shell_command(command, cwd=None, enable_stdin=False, enable_stdout=False, enable_stderr=False):
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with open(os.devnull, "w") as devnull_w, open(os.devnull, "r") as devnull_r:
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stdin = None if enable_stdin else devnull_r
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stdout = None if enable_stdout else devnull_w
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stderr = None if enable_stderr else devnull_w
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executable = os.environ.get("SHELL")
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if platform.system() == "Windows":
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# We avoid setting the executable kwarg on Windows because it does
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# not have the desired effect when combined with shell=True. It
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# will result in the correct program being run (e.g. bash), but it
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# will be invoked with a '/c' argument instead of a '-c' argument,
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# which it won't understand.
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#
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# See https://github.com/anishathalye/dotbot/issues/219 and
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# https://bugs.python.org/issue40467.
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#
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# This means that complex commands that require Bash's parsing
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# won't work; a workaround for this is to write the command as
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# `bash -c "..."`.
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executable = None
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return subprocess.call(
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command,
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shell=True,
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executable=executable,
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stdin=stdin,
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stdout=stdout,
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stderr=stderr,
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cwd=cwd,
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)
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