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# Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
# This file is part of the "cmake-common" project.
# For details, see https://github.com/egor-tensin/cmake-common.
# Distributed under the MIT License.

import argparse
import os.path
import sys

from project.ci.dirs import Dirs
from project.cmake.build import BuildParameters, build
from project.utils import setup_logging
import project.version


def _parse_args(argv=None):
    if argv is None:
        argv = sys.argv[1:]

    parser = argparse.ArgumentParser(
        description=Dirs.get_cmake_help(),
        formatter_class=argparse.RawDescriptionHelpFormatter)

    project.version.add_to_arg_parser(parser)

    # The hint parameter is basically a workaround for when this is run on a
    # CI, _but_ testing another CI is desired.  This shouldn't be used in a
    # real CI workflow.
    parser.add_argument('--hint', metavar='CI_NAME',
                        choices=Dirs.all_ci_names(),
                        help=argparse.SUPPRESS)
    parser.add_argument('--install', action='store_true',
                        help='install the project')
    parser.add_argument('--boost', metavar='DIR', dest='boost_dir',
                        help='set Boost directory path')
    parser.add_argument('--subdir', metavar='DIR',
                        help='relative project directory path')
    parser.add_argument('cmake_args', nargs='*', metavar='CMAKE_ARG', default=[],
                        help='additional CMake arguments, to be passed verbatim')
    return parser.parse_args(argv)


def build_ci(dirs, argv=None):
    args = _parse_args(argv)
    with setup_logging():
        if dirs is None:
            dirs = Dirs.detect(args.hint)

        src_dir = dirs.get_src_dir()
        if args.subdir:
            src_dir = os.path.join(src_dir, args.subdir)
        install_dir = dirs.get_install_dir() if args.install else None

        boost_dir = args.boost_dir
        if not boost_dir:
            # If we've built Boost using project.ci.boost already, use that.
            # Otherwise, try to use the latest pre-built Boost provided by the CI
            # system.
            boost_dir = dirs.get_boost_dir()
            if not os.path.isdir(boost_dir):
                boost_dir = dirs.get_prebuilt_boost_dir()

        params = BuildParameters(src_dir,
                                 build_dir=dirs.get_cmake_dir(),
                                 install_dir=install_dir,
                                 platform=dirs.get_platform(),
                                 configuration=dirs.get_configuration(),
                                 boost_dir=boost_dir,
                                 toolset_version=dirs.get_toolset(),
                                 cmake_args=dirs.get_cmake_args() + args.cmake_args)
        build(params)


def main(argv=None):
    build_ci(None, argv)


if __name__ == '__main__':
    main()