Make overrides directory work with examples and enums (GoogleCloudPla…

…tform#7481)

mmv1/api/type.rb

@@ -600,6 +600,24 @@ def validate
         check :values, type: ::Array, item_type: [Symbol, ::String, ::Integer], required: true
         check :skip_docs_values, type: :boolean
       end
+
+      def merge(other)
+        result = self.class.new
+        instance_variables.each do |v|
+          result.instance_variable_set(v, instance_variable_get(v))
+        end
+
+        other.instance_variables.each do |v|
+          if other.instance_variable_get(v).instance_of?(Array)
+            result.instance_variable_set(v, deep_merge(result.instance_variable_get(v),
+                                                       other.instance_variable_get(v)))
+          else
+            result.instance_variable_set(v, other.instance_variable_get(v))
+          end
+        end
+
+        result
+      end
     end
 
     # Represents a 'selfLink' property, which returns the URI of the resource.

mmv1/compiler.rb

@@ -240,6 +240,11 @@
                    else
                      File.read(override_path)
                    end
+        unless override_dir.nil?
+          # Replace overrides directory if we are running with a provider override
+          # This allows providers to reference files in their override path
+          res_yaml = res_yaml.gsub('{{override_path}}', override_dir)
+        end
         resource = Api::Compiler.new(res_yaml).run
         resource.validate
         resources.push(resource)

mmv1/provider/terraform/examples.rb

@@ -311,6 +311,24 @@ def validate
         check :skip_vcr, type: TrueClass
         check :pull_external, type: :boolean, default: false
       end
+
+      def merge(other)
+        result = self.class.new
+        instance_variables.each do |v|
+          result.instance_variable_set(v, instance_variable_get(v))
+        end
+
+        other.instance_variables.each do |v|
+          if other.instance_variable_get(v).instance_of?(Array)
+            result.instance_variable_set(v, deep_merge(result.instance_variable_get(v),
+                                                       other.instance_variable_get(v)))
+          else
+            result.instance_variable_set(v, other.instance_variable_get(v))
+          end
+        end
+
+        result
+      end
     end
   end
 end