How to get Realm from HCL files

[stephenafamo]

I am trying to directly generate Bob models from the schema defined in the HCL files.

To do that, I am trying to marshal a schema.Realm and I can't seem to figure it out.

Here is where I'm at:

table "users" {
  schema = schema.example
  column "id" {
    null = false
    type = int
  }
  column "name" {
    null = true
    type = varchar(100)
  }
  primary_key {
    columns = [column.id]
  }
}

	parser, err := parseHCLPaths("path/to/directory") // copied this function from atlas
	if err != nil {
		return nil, err
	}

	client := schemahcl.New()
	realm := &schema.Realm{}
	if err := client.Eval(parser, realm, nil); err != nil {
		return nil, err
	}

However, this fails with various errors such as:

Unknown variable; There is no variable named "schema".

And if I comment out the schema line

Call to unknown function; There is no function named "varchar".

[rotemtam]

schemahcl is a fairly low level library. each driver has a method for reading HCL, for example:

atlas/sql/mysql/sqlspec.go

Line 93 in 25fc911

EvalHCL = schemahcl.EvalFunc(evalSpec)

[stephenafamo]

Thank you. This is perfect.