{"contents":"import os\nimport subprocess\nfrom pathlib import Path\nfrom typing import Optional\n\n\ndef _extract_wechat_files_path_from_cmdline(cmdline):\n    if not cmdline:\n        return None\n    for i, arg in enumerate(cmdline):\n        if arg.startswith(\"--wechat-files-path=\"):\n            return arg.split(\"=\", 1)[1]\n        if arg == \"--wechat-files-path\" and i + 1 \u003c len(cmdline):\n            return cmdline[i + 1]\n    return None\n\n\ndef find_wechat_files_path() -\u003e Optional[str]:\n    # 1) env override\n    for env_key in (\"WECHAT_FILES_PATH\", \"WX_FILES_PATH\", \"XWECHAT_FILES_PATH\"):\n        val = os.environ.get(env_key)\n        if val and os.path.exists(val):\n            return val\n\n    # 2) parse running WeChat cmdline via /proc to avoid psutil dependency\n    try:\n        pgrep = subprocess.run([\"pgrep\", \"-f\", \"WeChat\"], capture_output=True, text=True, check=False)\n        if pgrep.returncode == 0:\n            for line in pgrep.stdout.splitlines():\n                pid = line.strip()\n                if not pid.isdigit():\n                    continue\n                try:\n                    with open(f\"/proc/{pid}/cmdline\", \"rb\") as f:\n                        cmdline = f.read().split(b\"\\x00\")\n                    cmdline = [c.decode(errors=\"ignore\") for c in cmdline if c]\n                except Exception:\n                    cmdline = []\n                path = _extract_wechat_files_path_from_cmdline(cmdline)\n                if path and os.path.exists(path):\n                    return path\n    except Exception:\n        pass\n\n    # 3) common locations for Linux WeChat AppImage\n    home = Path.home()\n    candidates = [\n        home / \"文档\" / \"xwechat_files\",\n        home / \"Documents\" / \"xwechat_files\",\n        home / \"xwechat_files\",\n        home / \".xwechat\" / \"xwechat_files\",\n        home / \".local\" / \"share\" / \"wechat\" / \"xwechat_files\",\n        home / \".local\" / \"share\" / \"WeChat Files\",\n    ]\n    for p in candidates:\n        if p.exists():\n            return str(p)\n\n    # 4) shallow search (one level) for xwechat_files\n    for p in (home / \"文档\", home / \"Documents\", home):\n        if p.exists():\n            target = p / \"xwechat_files\"\n            if target.exists():\n                return str(target)\n    return None\n","is_binary":false,"path":"wxdump_linux/linux/paths.py","ref":""}