def match()

in qs_cfn_lint_rules/stack/MissingParameter.py [0:0]

• 25 lines of code
• 4 McCabe index (conditional complexity)

    def match(self, cfn):
        """Basic Matching"""
        matches = []
        # try:
        resources = cfn.get_resources(
            resource_type=['AWS::CloudFormation::Stack']
        )

        for r_name, r_values in resources.items():
            properties = r_values.get('Properties')
            child_template_url = properties.get('TemplateURL')

            child_template_parameters = properties.get('Parameters')
            if child_template_parameters is None:
                child_template_parameters = {}

            missing_parameters = self.parameter_mismatch(
                current_template_path=os.path.abspath(cfn.filename),
                parameters=child_template_parameters,
                child_template_url=child_template_url,
                mappings=cfn.get_mappings()
            )

            if missing_parameters:
                path = ['Resources', r_name, 'Properties', 'Parameters']
                message = 'Missing Child Stack parameters. {} {}'.format(
                        r_name,
                        missing_parameters
                    )
                matches.append(RuleMatch(path, message))
        return matches