def select_plugins()

in noxfile.py [0:0]

• 47 lines of code
• 10 McCabe index (conditional complexity)

def select_plugins(session, directory: str) -> List[Plugin]:
    """
    Select all plugins that should be tested in this session.
    Considers the current Python version and operating systems against the supported ones,
    as well as the user plugins selection (via the PLUGINS environment variable).
    """
    assert session.python is not None, "Session python version is not specified"
    blacklist = [".isort.cfg", "examples"]
    plugins = [
        {"dir_name": x, "path": x}
        for x in sorted(os.listdir(os.path.join(BASE, directory)))
        if x not in blacklist
    ]

    ret = []
    skipped = []
    for plugin in plugins:
        if not (plugin["dir_name"] in PLUGINS or PLUGINS == ["ALL"]):
            skipped.append(f"Deselecting {plugin['dir_name']}: User request")
            continue

        setup_py = os.path.join(BASE, directory, plugin["path"], "setup.py")
        classifiers = session.run(
            "python", setup_py, "--name", "--classifiers", silent=True
        ).splitlines()
        plugin_name = classifiers.pop(0)
        plugin_python_versions = get_setup_python_versions(classifiers)
        python_supported = session.python in plugin_python_versions

        plugin_os_names = get_plugin_os_names(classifiers)
        os_supported = get_current_os() in plugin_os_names

        if not python_supported:
            py_str = ", ".join(plugin_python_versions)
            skipped.append(
                f"Deselecting {plugin['dir_name']} : Incompatible Python {session.python}. Supports [{py_str}]"
            )
            continue

        # Verify this plugin supports the OS we are testing on, skip otherwise
        if not os_supported:
            os_str = ", ".join(plugin_os_names)
            skipped.append(
                f"Deselecting {plugin['dir_name']}: Incompatible OS {get_current_os()}. Supports [{os_str}]"
            )
            continue

        ret.append(
            Plugin(
                name=plugin_name,
                path=plugin["path"],
                module="hydra_plugins." + plugin["dir_name"],
            )
        )

    for msg in skipped:
        logger.warn(msg)

    if len(ret) == 0:
        logger.warn("No plugins selected")
    return ret