Bambu Lab 多次违反开源许可证，知名 YouTuber 彻底弃用

#!/usr/bin/env python3
"""
license_check.py — 扫描目录，检查开源许可证合规性
用法: python3 license_check.py /path/to/project
"""

import os
import re
import sys

GPL_PATTERN = re.compile(
    r'(GPL|gpl|General Public License)', re.IGNORECASE
)
LICENSE_FILE_NAMES = [
    'COPYING', 'LICENSE', 'LICENCE', 'COPYING.txt', 'LICENSE.txt',
    'LICENSE.md', 'LICENCE.md',
]

def find_license_files(root):
    """在项目根目录查找许可证声明文件"""
    found = []
    for name in LICENSE_FILE_NAMES:
        path = os.path.join(root, name)
        if os.path.isfile(path):
            found.append(path)
    return found

def scan_source_files(root):
    """扫描 .py/.c/.h/.cpp/.js 文件，检查是否包含 GPL 引用"""
    extensions = {'.py', '.c', '.h', '.cpp', '.js', '.ts', '.go', '.rs'}
    gpl_refs = []
    no_license_header = []

    for dirpath, _, filenames in os.walk(root):
        # 跳过常见非源码目录
        skip_dirs = {'node_modules', '.git', 'venv', '__pycache__', 'build', 'dist'}
        if any(s in dirpath for s in skip_dirs):
            continue
        for fn in filenames:
            ext = os.path.splitext(fn)[1]
            if ext not in extensions:
                continue
            full_path = os.path.join(dirpath, fn)
            try:
                with open(full_path, 'r', errors='ignore') as f:
                    content = f.read()
            except Exception:
                continue

            if GPL_PATTERN.search(content):
                gpl_refs.append(full_path)

            # 检查前 20 行是否有许可证/版权声明
            head = content.splitlines()[:20]
            has_header = any(
                'copyright' in line.lower() or 'license' in line.lower() or 'spdx' in line.lower()
                for line in head
            )
            if not has_header:
                no_license_header.append(full_path)

    return gpl_refs, no_license_header

def main():
    if len(sys.argv) < 2:
        print("用法: python3 license_check.py /path/to/project")
        sys.exit(1)

    root = sys.argv[1]
    if not os.path.isdir(root):
        print(f"目录不存在: {root}")
        sys.exit(1)

    license_files = find_license_files(root)
    gpl_refs, no_header = scan_source_files(root)

    print(f"=== 许可证合规扫描: {root} ===\n")

    print(f"根目录许可证文件: {len(license_files)}")
    for f in license_files:
        print(f"  ✓ {os.path.basename(f)}")

    if not license_files:
        print("  ⚠ 未找到 COPYING/LICENSE 文件！如果项目包含 GPL 代码，这是违规的。")

    print(f"\n引用 GPL 的源文件: {len(gpl_refs)}")
    for f in gpl_refs[:10]:
        print(f"  • {f}")
    if len(gpl_refs) > 10:
        print(f"  ... 还有 {len(gpl_refs) - 10} 个文件")

    if gpl_refs and not license_files:
        print("\n❌ 严重问题: 项目包含 GPL 引用但缺少许可证声明文件，违反 GPL 分发要求。")

    print(f"\n缺少版权/许可证头的文件: {len(no_header)}")
    for f in no_header[:10]:
        print(f"  • {f}")
    if len(no_header) > 10:
        print(f"  ... 还有 {len(no_header) - 10} 个文件")

    if no_header:
        print("  ⚠ 建议为这些文件添加 SPDX 或版权声明头，便于合规审计。")

    print("\n--- 扫描完成 ---")

if __name__ == '__main__':
    main()

# 扫描你自己的项目
python3 license_check.py ~/my-firmware-project

# 扫描一个你下载的第三方源码包，看看它是否合规
python3 license_check.py ./bambu-firmware-source