def build_cmdstan()

in python/setup.py [0:0]

• 26 lines of code
• 8 McCabe index (conditional complexity)

def build_cmdstan(verbose: bool = False) -> None:
    """Run `make build` in the current directory (must be a cmdstan library).

    Parameters
    ----------
    verbose: when ``True``, print build msgs to stdout.
    """
    cmd = [MAKE, "build"]
    proc = subprocess.Popen(
        cmd,
        cwd=None,
        stdin=subprocess.DEVNULL,
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        env=os.environ,
    )
    while proc.poll() is None:
        if proc.stdout:
            output = proc.stdout.readline().decode("utf-8").strip()
            if verbose and output:
                print(output, flush=True)
    _, stderr = proc.communicate()
    if proc.returncode:
        msgs = ['Command "make build" failed']
        if stderr:
            msgs.append(stderr.decode("utf-8").strip())
        raise RuntimeError("\n".join(msgs))
    # Add tbb to the $PATH on Windows
    if PLATFORM == "win":
        libtbb = os.path.join(os.getcwd(), "stan", "lib", "stan_math", "lib", "tbb")
        os.environ["PATH"] = ";".join(
            list(OrderedDict.fromkeys([libtbb] + os.environ.get("PATH", "").split(";")))
        )