tf.json support

[freddd]

Hi @wata727,

I was experimenting a bit with the plugin and tried to run it on a few tf.json files and got the following error message:

08:52:17 runner_walk.go:36: [DEBUG] Walk `google_storage_bucket_access_control.test.role` attribute
Failed to check ruleset. An error occurred:
Error: Failed to check `google_storage_bucket_access_control_invalid_role` rule: bla.tf.json:31,19-19: JSON configuration syntax is not supported;

I've been able to run tflint on AWS resources that are tf.json. Is the error message because the plugin is experimental?

Here is the tf.json file:

{
   "data": {
      "google_service_account": {
         "test": {
            "account_id": "test"
         }
      }
   },
   "resource": {
      "google_storage_bucket": {
         "bucket": {
            "location": "eu",
            "name": "bucket",
            "storage_class": "STANDARD",
            "versioning": {
               "enabled": true
            }
         }
      },
      "google_storage_bucket_iam_binding": {
         "viewer": {
            "members": [
               "serviceAccount:email"
            ],
            "role": "roles/storage.objectViewer"
         }
      },
      "google_storage_bucket_access_control": {
        "test": {
          "bucket": "test",
          "role": "DOESNTEXIST",
          "entity": "test"
        }
      }
   }
}

[wata727]

Yes, the plugin system doesn't support JSON syntax now. See also https://github.com/terraform-linters/tflint-plugin-sdk/issues/32.

Fortunately, the changes needed to support this have recently been merged into hashicorp/hcl. Therefore, if the next HCL version is released and a Terraform that uses it is released, we will be able to support this.

[freddd]

Alright! Thanks for the quick reply, we'll keep an eye out for the next version. We are looking forward to using and contributing to tflint and the gcp plugin.