Golden is a project implemented in Go language. It is a DSL (Domain Specific Language) engine that uses HCL (HashiCorp Configuration Language) as its base, like grept.
Golden assumes a DSL engine which is composited by Plan phase and Apply phase, just like Terraform.
It supports two block interfaces: PlanBlock and ApplyBlock, you can implement your own block type, in Terraform, there are data, resource, local, variable, output. In grept, there are data, rule, fix, local.
Golden has implemented local block, and variable support is in our roadmap.
Golden has implemented support for for_each and precondition in blocks.
A simple example to show how to customize your own DSL is in our roadmap.