meson/meson.py

#!/usr/bin/env python3

# Copyright 2016 The Meson development team

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This file is an entry point for all commands, including scripts. Include the
# strict minimum python modules for performance reasons.
import sys

# Check python version before importing anything else, we might have an older
# Python that would error on f-string syntax for example.
if sys.version_info < (3, 7):
    print('Meson works correctly only with python 3.7+.')
    print('You have python {}.'.format(sys.version))
    print('Please update your environment')
    sys.exit(1)

from pathlib import Path

# If we're run uninstalled, add the script directory to sys.path to ensure that
# we always import the correct mesonbuild modules even if PYTHONPATH is mangled
meson_exe = Path(sys.argv[0]).resolve()
if (meson_exe.parent / 'mesonbuild').is_dir():
    sys.path.insert(0, str(meson_exe.parent))

from mesonbuild import mesonmain

if __name__ == '__main__':
    sys.exit(mesonmain.main())