def _check_core_logic_jar_exists()

in atr/tasks/checks/rat.py [0:0]

• 34 lines of code
• 7 McCabe index (conditional complexity)

def _check_core_logic_jar_exists(rat_jar_path: str) -> tuple[str, dict[str, Any] | None]:
    """Verify that the Apache RAT JAR file exists and is accessible."""
    # Check that the RAT JAR exists
    if not os.path.exists(rat_jar_path):
        _LOGGER.error(f"Apache RAT JAR not found at: {rat_jar_path}")
        # Try a few common locations:
        # ./rat.jar
        # ./state/rat.jar
        # ../rat.jar
        # ../state/rat.jar
        # NOTE: We're also doing something like this in task_verify_rat_license
        # Should probably decide one place to do it, and do it well
        alternative_paths = [
            os.path.join(os.getcwd(), os.path.basename(rat_jar_path)),
            os.path.join(os.getcwd(), "state", os.path.basename(rat_jar_path)),
            os.path.join(os.path.dirname(os.getcwd()), os.path.basename(rat_jar_path)),
            os.path.join(os.path.dirname(os.getcwd()), "state", os.path.basename(rat_jar_path)),
        ]

        for alt_path in alternative_paths:
            if os.path.exists(alt_path):
                _LOGGER.info(f"Found alternative RAT JAR at: {alt_path}")
                rat_jar_path = alt_path
                break

        # Double check whether we found the JAR
        if not os.path.exists(rat_jar_path):
            _LOGGER.error("Tried alternative paths but Apache RAT JAR still not found")
            _LOGGER.error(f"Current directory: {os.getcwd()}")
            _LOGGER.error(f"Directory contents: {os.listdir(os.getcwd())}")
            if os.path.exists("state"):
                _LOGGER.error(f"State directory contents: {os.listdir('state')}")

            return rat_jar_path, {
                "valid": False,
                "message": f"Apache RAT JAR not found at: {rat_jar_path}",
                "total_files": 0,
                "approved_licenses": 0,
                "unapproved_licenses": 0,
                "unknown_licenses": 0,
                "unapproved_files": [],
                "unknown_license_files": [],
                "errors": [f"Missing JAR: {rat_jar_path}"],
            }
    else:
        _LOGGER.info(f"Found Apache RAT JAR at: {rat_jar_path}")

    return rat_jar_path, None