0.12 support for terraform-docs

[osterman]

what

• Add a hack to support terraform 0.12 with terraform-docs
• Use awk to generate variables and outputs suitable for terraform-docs

why

• terraform-docs does not yet support HCL2

references

• Add support for Terraform 0.12's Rich Value Types terraform-docs/terraform-docs#62

[antonbabenko]

Thanks a lot for this solution!

It works for all cases I have, but not when default value looks like this:

variable "database_outbound_acl_rules" {
  description = "Database subnets outbound network ACL rules"
  type        = list(map(string))

  default = [
    {
      rule_number = 100
      rule_action = "allow"
      from_port   = 0
      to_port     = 0
      protocol    = "-1"
      cidr_block  = "0.0.0.0/0"
    },
  ]
}

Do you know how to improve awk script to handle this?