Function BuildEvalContext

provisioner/terraform/tfparse/tfparse.go:451–484

BuildEvalContext builds an evaluation context for the given variable and parameter defaults.

(vars map[string]string, params map[string]string)

// BuildEvalContext builds an evaluation context for the given variable and parameter defaults.
func BuildEvalContext(vars map[string]string, params map[string]string) *hcl.EvalContext {
	varDefaultsM := map[string]cty.Value{}
	for varName, varDefault := range vars {
		varDefaultsM[varName] = cty.MapVal(map[string]cty.Value{
			"value": cty.StringVal(varDefault),
		})
	}

	paramDefaultsM := map[string]cty.Value{}
	for paramName, paramDefault := range params {
		paramDefaultsM[paramName] = cty.MapVal(map[string]cty.Value{
			"value": cty.StringVal(paramDefault),
		})
	}

	evalCtx := &hcl.EvalContext{
		Variables: map[string]cty.Value{},
		// NOTE: we do not currently support function execution here.
		// The default function map for Terraform is not exposed, so we would essentially
		// have to re-implement or copy the entire map or a subset thereof.
		// ref: https://github.com/hashicorp/terraform/blob/e044e569c5bc81f82e9a4d7891f37c6fbb0a8a10/internal/lang/functions.go#L54
		Functions: Functions(),
	}
	if len(varDefaultsM) != 0 {
		evalCtx.Variables["var"] = cty.MapVal(varDefaultsM)
	}
	if len(paramDefaultsM) != 0 {
		evalCtx.Variables["data"] = cty.MapVal(map[string]cty.Value{
			"coder_parameter": cty.MapVal(paramDefaultsM),
		})
	}

	return evalCtx
}

var rootTemplateSchema = &hcl.BodySchema{
	Blocks: []hcl.BlockHeaderSchema{