#!/bin/sh
# -*- python -*-
#
# Copyright Sunhpc Project Developers. See COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

# This file is bilingual. The following shell code finds our preferred python.
# Following line is a shell no-op, and starts a multi-line Python comment.
# See https://stackoverflow.com/a/47886254
""":"
# prefer SUNHPC_PYTHON environment variable, python3, python, then python2
SUNHPC_PREFERRED_PYTHONS="python3 python python2 /usr/libexec/platform-python"
for cmd in "${SUNHPC_PYTHON:-}" ${SUNHPC_PREFERRED_PYTHONS}; do
    if command -v > /dev/null "$cmd"; then
        export SUNHPC_PYTHON="$(command -v "$cmd")"
        exec "${SUNHPC_PYTHON}" "$0" "$@"
    fi
done

echo "==> Error: sunhpc could not find a python interpreter!" >&2
exit 1
":"""
# Line above is a shell no-op, and ends a python multi-line comment.
# The code above runs this file with our preferred python interpreter.

import os
import sys

min_python3 = (3, 6)

if sys.version_info[:2] < min_python3:
    v_info = sys.version_info[:3]
    msg = "Sunhpc requires Python %d.%d or higher " % min_python3
    msg += "You are running sunhpc with Python %d.%d.%d." % v_info
    sys.exit(msg)

# Find sunhpc's location and its prefix.
sunhpc_file = os.path.realpath(os.path.expanduser(__file__))
sunhpc_prefix = os.path.dirname(os.path.dirname(sunhpc_file))

# Allow sunhpc libs to be imported in our scripts
sys.path.insert(0, os.path.join(sunhpc_prefix, "lib", "sunhpc"))

from sunhpc.main import main  # noqa: E402

# Once we've set up the system path, run the sunhpc main method
if __name__ == "__main__":
    sys.exit(main(sys.argv))
