Function start_daemon

src/cocoindex_code/client.py:414–448

Start the daemon as a background process. Returns the ``Popen`` object so callers can detect early process death (via ``proc.poll()``) instead of waiting for a full timeout.

()

def start_daemon() -> subprocess.Popen[bytes]:
    """Start the daemon as a background process.

    Returns the ``Popen`` object so callers can detect early process death
    (via ``proc.poll()``) instead of waiting for a full timeout.
    """
    daemon_runtime_dir().mkdir(parents=True, exist_ok=True)
    log_path = daemon_log_path()

    ccc_path = _find_ccc_executable()
    if ccc_path:
        cmd = [ccc_path, "run-daemon"]
    else:
        cmd = [sys.executable, "-m", "cocoindex_code.cli", "run-daemon"]

    log_fd = open(log_path, "w")
    if sys.platform == "win32":
        _create_no_window = 0x08000000
        proc = subprocess.Popen(
            cmd,
            stdout=log_fd,
            stderr=log_fd,
            stdin=subprocess.DEVNULL,
            creationflags=_create_no_window,
        )
    else:
        proc = subprocess.Popen(
            cmd,
            start_new_session=True,
            stdout=log_fd,
            stderr=log_fd,
            stdin=subprocess.DEVNULL,
        )
    log_fd.close()
    return proc


def _find_ccc_executable() -> str | None: