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# Copyright (c) 2025 Oracle and/or its affiliates
# SPDX-License-Identifier: LGPL-2.1-or-later
import argparse
import os
from pathlib import Path
import subprocess
import sys
from vmtest.config import ARCHITECTURES, HOST_ARCHITECTURE
if __name__ == "__main__":
parser = argparse.ArgumentParser(
description="run commands in the root filesystems for vmtest",
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument(
"-d",
"--directory",
metavar="DIR",
type=Path,
default="build/vmtest",
help="directory for vmtest artifacts",
)
parser.add_argument(
"-a",
"--architecture",
type=str,
choices=sorted(ARCHITECTURES),
default=None if HOST_ARCHITECTURE is None else HOST_ARCHITECTURE.name,
required=HOST_ARCHITECTURE is None,
help="architecture to run in",
)
parser.add_argument(
"command",
type=str,
nargs=argparse.REMAINDER,
help="command to run in rootfs (default: bash -i)",
)
args = parser.parse_args()
arch = ARCHITECTURES[args.architecture]
dir = args.directory / arch.name / "rootfs"
command = args.command or ["bash", "-i"]
env_passthrough = {
"TERM",
"COLORTERM",
}
filtered_env = {k: v for k, v in os.environ.items() if k in env_passthrough}
sys.exit(
subprocess.run(
[
"unshare",
"--map-root-user",
"--map-users=auto",
"--map-groups=auto",
"--fork",
"--pid",
f"--mount-proc={dir / 'proc'}",
"chroot",
dir,
*command,
],
env=filtered_env,
).returncode
)
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