get_aws_account_id() mocked during validation

[sophie-warner-annalise-ai]

Describe the enhancement

I run terragrunt hcl validate --inputs --strict in my CI. It fails bc the CI runner is not authed to AWS.

get_aws_account_id() and similar should not make calls to external systems during validation or formatting as they are static checks. It would be good if they knew not to make this call or you could pass a flag such as --mock --ci

Additional context

Its possible to add a fallback to account for not being authed such as: get_env("AWS_ACCOUNT_ID", get_aws_account_id()) where AWS_ACCOUNT_ID is a dummy value. However, imo you shouldn't have to change code to get static checks to pass when the code already does what its supposed to.

[yhakbar]

I think this is a good idea, but needs more design. It's possible we can update things so that get_aws_account_id() is returned as a cty dynamic value for things like hcl validate.