• If the file is not provided or if the file does not exist, the program will not run the checking function but instead will return a non-zero exit code.
• In other cases (the file exists and is provided), the program will read the file.
• If the supplied file is not a valid JSON file the program will run the checking function that will return "true".
• Duplicate keys in the JSON file are allowed, as per the JSON specification. Only the last value of the key will be considered.
• Multiple "PolicyDocument/Statement" keys are allowed, as per the AWS::IAM::Role Policy document specification.
• The program will check for an asterisk (*) in each "Resource" key value and return "false" if a single asterisk is found in all of them.
• If even a single "Resource" key value does not contain an asterisk, or the key is missing altogether, the program will return "true".
• The program will also return "true" if either the "PolicyDocument" or "Statement" key is missing.
• Other missing keys and values are allowed, as the program doesn't check the structure of the AWS::IAM::Role Policy document itself.

Go (any fairly recent version should work)

From the main directory, run the following command:

go build -o asterisk.exe
.\asterisk.exe <path_to_file>

go build -o asterisk
./asterisk <path_to_file>

From the main directory, run the following command:

go test