#  Copyright (c) 2025  Jeffrey Hsu - JITToolBox
#  #
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#  #
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#  #
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <https://www.gnu.org/licenses/>.

import subprocess
from datetime import datetime


def gen_build_info():
    try:
        hash_str = subprocess.check_output(
            ['git', 'rev-parse', '--short', 'HEAD'],
            stderr=subprocess.DEVNULL
        ).decode('utf-8').strip()
    except FileNotFoundError:
        # git 未安装
        hash_str = 'unknown'
    except subprocess.CalledProcessError:
        # 不是 git 仓库（如从压缩包下载）
        hash_str = 'unknown'

    with open('build_info.py', 'w', encoding='utf-8') as f:
        f.write(f"# Auto-generated build info\n")
        f.write(f"BUILD_TIME = '{datetime.now().isoformat(sep=' ', timespec='seconds')}'\n")
        f.write(f"GIT_HASH = '{hash_str}'\n")


if __name__ == '__main__':
    gen_build_info()