Pfthb

New to Terraform and Terragrunt, trying to work out a testing strategy. So far it seems that even running plan requires credentials and a host (e.g. Azure) to run. I just want to make sure that the .tf files in my source git have all their variables satisfied by my .tfvars files. For example, say I have a tfvars file like this, that pulls in a source from a repo and plan/apply work as expected, but I just want to do a validation:

# /my-project/terraform.tfvars

terragrunt = 
 terraform 
 source = "git::https://my-repo/my-source"
 


name = "foo"
bar = true

and in the git repo I have

# /my-repo/my-source/vars.tf

variable "name" 
 description = "The name"


variable "bar" 
 description = "The bool"


variable "other" 
 description = "One that is missing"

and

# /my-repo/my-source/main.tf

resource "my-source" "this" 
 name = "$var.name"
 bar = "$var.bar"
 other = "$var.other" 

if I run terragrunt init or terragrunt validate it simply says that there are "no Terraform compilation files", meaning it's not using the ones from the module. How can I validate the tfvars file - and find out that "other" is not set - without running plan-all ?