change TF CustomDiff func signature to accept state and config

Signed-off-by: Alper Rifat Ulucinar <[email protected]>

pkg/config/resource.go

@@ -350,7 +350,7 @@ func (r *Resource) ShouldUseNoForkClient() bool {
 // CustomDiff customizes the computed Terraform InstanceDiff. This can be used
 // in cases where, for example, changes in a certain argument should just be
 // dismissed. The new InstanceDiff is returned along with any errors.
-type CustomDiff func(diff *terraform.InstanceDiff) (*terraform.InstanceDiff, error)
+type CustomDiff func(diff *terraform.InstanceDiff, state *terraform.InstanceState, config *terraform.ResourceConfig) (*terraform.InstanceDiff, error)
 
 // ConfigurationInjector is a function that injects Terraform configuration
 // values from the specified managed resource into the specified configuration

pkg/controller/external_nofork.go

@@ -340,12 +340,13 @@ func filterInitExclusiveDiffs(tr resource.Terraformed, instanceDiff *tf.Instance
 }
 
 func (n *noForkExternal) getResourceDataDiff(tr resource.Terraformed, ctx context.Context, s *tf.InstanceState, resourceExists bool) (*tf.InstanceDiff, error) {
-	instanceDiff, err := schema.InternalMap(n.resourceSchema.Schema).Diff(ctx, s, tf.NewResourceConfigRaw(n.params), nil, n.ts.Meta, false)
+  resourceConfig := tf.NewResourceConfigRaw(n.params)
+	instanceDiff, err := schema.InternalMap(n.resourceSchema.Schema).Diff(ctx, s, resourceConfig, nil, n.ts.Meta, false)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to get *terraform.InstanceDiff")
 	}
 	if n.config.TerraformCustomDiff != nil {
-		instanceDiff, err = n.config.TerraformCustomDiff(instanceDiff)
+		instanceDiff, err = n.config.TerraformCustomDiff(instanceDiff, s, resourceConfig)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to compute the customized terraform.InstanceDiff")
 		}