inconsistent behaviour for resources that can have repeated blocks defined with HCL2

[crivetechie]

Hello, we are having some issues writing policies for resource that may contain repeated blocks.

It looks like the behaviour of conftest is to produce an object when there's a single block and an array if the block is repeated.

See the example below definining two kubernetes_deployment resources, the first using a single container block and the second using 2 containers blocks

resource "kubernetes_deployment" "example-single-block" {
  spec {
    template {
      spec {
        container {
          name = "one"
        }
      }
    }
  }
}

resource "kubernetes_deployment" "example-multiple-blocks" {
  spec {
    template {
      spec {
        container {
          name = "one"
        }
        container {
          name = "two"
        }
      }
    }
  }
}

the above is parsed as

"resource": {
    "kubernetes_deployment": {
      "example-multiple-blocks": {
        "spec": {
          "template": {
            "spec": {
              "container": [
                {
                  "name": "one"
                },
                {
                  "name": "two"
                }
              ]
            }
          }
        }
      },
      "example-single-block": {
        "spec": {
          "template": {
            "spec": {
              "container": {
                "name": "one"
              }
            }
          }
        }
      }
    }

as you can see spec.template.spec.container in example-multiple-blocks is an array, it is an object in example-single-block

Accoriding to https://github.com/open-policy-agent/conftest/issues/266 I was expecting this to be resolved but it isn't, looks like conftest is using version 0.3.1 of hcl2json lib which doesn't include the fix. I am wondering if there was a decision to lock to [email protected] to avoid introducing breaking changes and if there's any plan for upgrading to latest version. Thank you!