Add support for using common base

pkg/transformers/patch.go

@@ -55,10 +55,15 @@ func (pt *patchTransformer) Transform(baseResourceMap resmap.ResMap) error {
 	for _, patch := range patches {
 		// Merge patches with base resource.
 		id := patch.Id()
-		base, found := baseResourceMap[id]
-		if !found {
+		matchedIds := baseResourceMap.FindByGVKN(id)
+		if len(matchedIds) == 0 {
 			return fmt.Errorf("failed to find an object with %#v to apply the patch", id.Gvk())
 		}
+		if len(matchedIds) > 1 {
+			return fmt.Errorf("Found multiple objects %#v that the patch %#v can apply", matchedIds, id)
+		}
+		id = matchedIds[0]
+		base := baseResourceMap[id]
 		merged := map[string]interface{}{}
 		versionedObj, err := scheme.Scheme.New(id.Gvk())
 		baseName := base.GetName()

pkg/transformers/prefixname.go

@@ -69,13 +69,17 @@ func (o *namePrefixTransformer) Transform(m resmap.ResMap) error {
 	mf := resmap.ResMap{}
 
 	for id := range m {
-		mf[id] = m[id]
+		found := false
 		for _, path := range o.skipPathConfigs {
 			if selectByGVK(id.Gvk(), path.GroupVersionKind) {
-				delete(mf, id)
+				found = true
 				break
 			}
 		}
+		if !found {
+			mf[id] = m[id]
+			delete(m, id)
+		}
 	}
 
 	for id := range mf {
@@ -88,6 +92,8 @@ func (o *namePrefixTransformer) Transform(m resmap.ResMap) error {
 			if err != nil {
 				return err
 			}
+			newId := id.CopyWithNewPrefix(o.prefix)
+			m[newId] = mf[id]
 		}
 	}
 	return nil

pkg/transformers/prefixname_test.go

@@ -53,7 +53,7 @@ func TestPrefixNameRun(t *testing.T) {
 			}),
 	}
 	expected := resmap.ResMap{
-		resource.NewResId(cmap, "cm1"): resource.NewResourceFromMap(
+		resource.NewResIdWithPrefix(cmap, "cm1", "someprefix-"): resource.NewResourceFromMap(
 			map[string]interface{}{
 				"apiVersion": "v1",
 				"kind":       "ConfigMap",
@@ -61,7 +61,7 @@ func TestPrefixNameRun(t *testing.T) {
 					"name": "someprefix-cm1",
 				},
 			}),
-		resource.NewResId(cmap, "cm2"): resource.NewResourceFromMap(
+		resource.NewResIdWithPrefix(cmap, "cm2", "someprefix-"): resource.NewResourceFromMap(
 			map[string]interface{}{
 				"apiVersion": "v1",
 				"kind":       "ConfigMap",