Add resource provider registry

clusters/resource_cluster.go

@@ -394,3 +394,8 @@ func resourceClusterUpdate(ctx context.Context, d *schema.ResourceData, c *commo
 	}
 	return nil
 }
+
+func init() {
+	common.RegisterResourceProvider(compute.ClusterSpec{}, ClusterSpec{})
+	common.RegisterResourceProvider(compute.Library{}, LibraryResource{})
+}

clusters/resource_library.go

@@ -12,14 +12,24 @@ import (
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
 )
 
-func ResourceLibrary() common.Resource {
-	libraySdkSchema := common.StructToSchema(compute.Library{}, func(m map[string]*schema.Schema) map[string]*schema.Schema {
-		m["cluster_id"] = &schema.Schema{
-			Type:     schema.TypeString,
-			Required: true,
-		}
-		return m
+type LibraryResource struct {
+	compute.Library
+}
+
+func (LibraryResource) Aliases() map[string]map[string]string {
+	return map[string]map[string]string{}
+}
+
+func (LibraryResource) CustomizeSchema(s map[string]*schema.Schema) map[string]*schema.Schema {
+	common.CustomizeSchemaPath(s).AddNewField("cluster_id", &schema.Schema{
+		Type:     schema.TypeString,
+		Required: true,
 	})
+	return s
+}
+
+func ResourceLibrary() common.Resource {
+	libraySdkSchema := common.StructToSchema(LibraryResource{}, nil)
 	parseId := func(id string) (string, string) {
 		split := strings.SplitN(id, "/", 2)
 		if len(split) != 2 {

common/reflect_resource.go

@@ -38,6 +38,25 @@ var kindMap = map[reflect.Kind]string{
 	reflect.UnsafePointer: "UnsafePointer",
 }
 
+// Global registry for ResoureProvider, the goal is to make StructToSchema able to find pre-registered ResourceProvider for a
+// given struct so that we don't have to specify aliases and customizations redundantly if one schema references the another
+// schema.
+var resourceProviderRegistry map[string]ResourceProvider
+
+// Pre-registered ResourceProvider for a given struct into resourceProviderRegistry.
+// This function should be called in the init() function in packages with ResourceProvider.
+// Example:
+//
+//	func init() {
+//		 common.RegisterResourceProvider(jobs.JobSettings{}) = JobSettingsResource{}
+//	}
+func RegisterResourceProvider(v any, r ResourceProvider) {
+	if resourceProviderRegistry == nil {
+		resourceProviderRegistry = make(map[string]ResourceProvider)
+	}
+	resourceProviderRegistry[getNameForType(reflect.ValueOf(v).Type())] = r
+}
+
 // Generic interface for ResourceProvider. Using CustomizeSchema function to keep track of additional information
 // on top of the generated go-sdk struct.
 type ResourceProvider interface {