Add an attribute observedgeneration (#714)

* Add an attribute observedgeneration

* add unit tests

pkg/schema/converter/crd.go

@@ -77,5 +77,27 @@ func forVersion(group, kind string, version v1.CustomResourceDefinitionVersion,
 	}
 	if version.Schema != nil && version.Schema.OpenAPIV3Schema != nil {
 		schema.Description = version.Schema.OpenAPIV3Schema.Description
+
+		if hasObservedGeneration(version.Schema.OpenAPIV3Schema) {
+			schemas.SetHasObservedGeneration(schema.Schema, true)
+		}
 	}
 }
+
+func hasObservedGeneration(schema *v1.JSONSchemaProps) bool {
+	if schema == nil {
+		return false
+	}
+	if schema.Properties == nil {
+		return false
+	}
+	status, ok := schema.Properties["status"]
+	if !ok {
+		return false
+	}
+	if status.Properties == nil {
+		return false
+	}
+	_, found := status.Properties["observedGeneration"]
+	return found
+}

pkg/schema/converter/crd_test.go

@@ -306,3 +306,73 @@ func TestAddCustomResources(t *testing.T) {
 		})
 	}
 }
+func TestHasObservedGeneration(t *testing.T) {
+	tests := []struct {
+		name     string
+		schema   *v1.JSONSchemaProps
+		expected bool
+	}{
+		{
+			name:     "nil schema",
+			schema:   nil,
+			expected: false,
+		},
+		{
+			name:     "nil properties",
+			schema:   &v1.JSONSchemaProps{},
+			expected: false,
+		},
+		{
+			name: "no status property",
+			schema: &v1.JSONSchemaProps{
+				Properties: map[string]v1.JSONSchemaProps{
+					"foo": {},
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "status property without properties",
+			schema: &v1.JSONSchemaProps{
+				Properties: map[string]v1.JSONSchemaProps{
+					"status": {},
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "status property with properties but no observedGeneration",
+			schema: &v1.JSONSchemaProps{
+				Properties: map[string]v1.JSONSchemaProps{
+					"status": {
+						Properties: map[string]v1.JSONSchemaProps{
+							"foo": {},
+						},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			name: "status property with observedGeneration",
+			schema: &v1.JSONSchemaProps{
+				Properties: map[string]v1.JSONSchemaProps{
+					"status": {
+						Properties: map[string]v1.JSONSchemaProps{
+							"observedGeneration": {},
+						},
+					},
+				},
+			},
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			result := hasObservedGeneration(tt.schema)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}