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# Licensed under the MIT License.

import argparse

import os

import pathlib

import subprocess

import sys

from typing import Optional, Sequence

VENV_NAME = ".venv"

LIB_ROOT = pathlib.Path(__file__).parent / "lib" / "python"

CWD = pathlib.Path.cwd()

class MicroVenvError(Exception):

pass

def run_process(args: Sequence[str], error_message: str) -> None:

try:

print("Running: " + " ".join(args))

subprocess.run(args, cwd=os.getcwd(), check=True)

except subprocess.CalledProcessError:

raise MicroVenvError(error_message)

def parse_args(argv: Sequence[str]) -> argparse.Namespace:

parser = argparse.ArgumentParser()

parser.add_argument(

"--name",

default=VENV_NAME,

type=str,

help="Name of the virtual environment.",

metavar="NAME",

action="store",

)

return parser.parse_args(argv)

def create_microvenv(name: str):

run_process(

[sys.executable, os.fspath(LIB_ROOT / "microvenv.py"), name],

"CREATE_MICROVENV.MICROVENV_FAILED_CREATION",

)

def main(argv: Optional[Sequence[str]] = None) -> None:

if argv is None:

argv = []

args = parse_args(argv)

print("CREATE_MICROVENV.CREATING_MICROVENV")

create_microvenv(args.name)

print("CREATE_MICROVENV.CREATED_MICROVENV")

if __name__ == "__main__":

main(sys.argv[1:])