Fix segfault in bundle summary command (#1937)

## Changes
This PR introduces use of new `isNil` method. It allows to ensure we
filter out all improperly defined resources in `bundle summary` command.
This includes deleted resources or resources with incorrect
configuration such as only defining key of the resource and nothing
else.

Fixes #1919, #1913

## Tests
Added regression unit test case

bundle/config/resources.go

@@ -41,6 +41,9 @@ type ConfigResource interface {
 
 	// InitializeURL initializes the URL field of the resource.
 	InitializeURL(baseURL url.URL)
+
+	// IsNil returns true if the resource is nil, for example, when it was removed from the bundle.
+	IsNil() bool
 }
 
 // ResourceGroup represents a group of resources of the same type.
@@ -57,6 +60,9 @@ func collectResourceMap[T ConfigResource](
 ) ResourceGroup {
 	resources := make(map[string]ConfigResource)
 	for key, resource := range input {
+		if resource.IsNil() {
+			continue
+		}
 		resources[key] = resource
 	}
 	return ResourceGroup{

bundle/config/resources/clusters.go

@@ -56,3 +56,7 @@ func (s *Cluster) GetName() string {
 func (s *Cluster) GetURL() string {
 	return s.URL
 }
+
+func (s *Cluster) IsNil() bool {
+	return s.ClusterSpec == nil
+}

bundle/config/resources/dashboard.go

@@ -79,3 +79,7 @@ func (r *Dashboard) GetName() string {
 func (r *Dashboard) GetURL() string {
 	return r.URL
 }
+
+func (r *Dashboard) IsNil() bool {
+	return r.Dashboard == nil
+}

bundle/config/resources/job.go

@@ -63,3 +63,7 @@ func (j *Job) GetName() string {
 func (j *Job) GetURL() string {
 	return j.URL
 }
+
+func (j *Job) IsNil() bool {
+	return j.JobSettings == nil
+}

bundle/config/resources/mlflow_experiment.go

@@ -58,3 +58,7 @@ func (s *MlflowExperiment) GetName() string {
 func (s *MlflowExperiment) GetURL() string {
 	return s.URL
 }
+
+func (s *MlflowExperiment) IsNil() bool {
+	return s.Experiment == nil
+}

bundle/config/resources/mlflow_model.go

@@ -58,3 +58,7 @@ func (s *MlflowModel) GetName() string {
 func (s *MlflowModel) GetURL() string {
 	return s.URL
 }
+
+func (s *MlflowModel) IsNil() bool {
+	return s.Model == nil
+}

bundle/config/resources/model_serving_endpoint.go

@@ -66,3 +66,7 @@ func (s *ModelServingEndpoint) GetName() string {
 func (s *ModelServingEndpoint) GetURL() string {
 	return s.URL
 }
+
+func (s *ModelServingEndpoint) IsNil() bool {
+	return s.CreateServingEndpoint == nil
+}

bundle/config/resources/pipeline.go

@@ -58,3 +58,7 @@ func (p *Pipeline) GetName() string {
 func (s *Pipeline) GetURL() string {
 	return s.URL
 }
+
+func (s *Pipeline) IsNil() bool {
+	return s.PipelineSpec == nil
+}

bundle/config/resources/quality_monitor.go

@@ -62,3 +62,7 @@ func (s *QualityMonitor) GetName() string {
 func (s *QualityMonitor) GetURL() string {
 	return s.URL
 }
+
+func (s *QualityMonitor) IsNil() bool {
+	return s.CreateMonitor == nil
+}

bundle/config/resources/registered_model.go

@@ -68,3 +68,7 @@ func (s *RegisteredModel) GetName() string {
 func (s *RegisteredModel) GetURL() string {
 	return s.URL
 }
+
+func (s *RegisteredModel) IsNil() bool {
+	return s.CreateRegisteredModelRequest == nil
+}

bundle/config/resources/schema.go

@@ -56,3 +56,7 @@ func (s *Schema) UnmarshalJSON(b []byte) error {
 func (s Schema) MarshalJSON() ([]byte, error) {
 	return marshal.Marshal(s)
 }
+
+func (s *Schema) IsNil() bool {
+	return s.CreateSchema == nil
+}

bundle/render/render_text_output_test.go

@@ -519,6 +519,10 @@ func TestRenderSummary(t *testing.T) {
 						URL:         "https://url2",
 						JobSettings: &jobs.JobSettings{Name: "job2-name"},
 					},
+					"job3": {
+						ID:  "3",
+						URL: "https://url3", // This emulates deleted job
+					},
 				},
 				Pipelines: map[string]*resources.Pipeline{
 					"pipeline2": {

bundle/resources/completion_test.go

@@ -6,6 +6,8 @@ import (
 	"github.com/databricks/cli/bundle"
 	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/bundle/config/resources"
+	"github.com/databricks/databricks-sdk-go/service/jobs"
+	"github.com/databricks/databricks-sdk-go/service/pipelines"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -14,11 +16,17 @@ func TestCompletions_SkipDuplicates(t *testing.T) {
 		Config: config.Root{
 			Resources: config.Resources{
 				Jobs: map[string]*resources.Job{
-					"foo": {},
-					"bar": {},
+					"foo": {
+						JobSettings: &jobs.JobSettings{},
+					},
+					"bar": {
+						JobSettings: &jobs.JobSettings{},
+					},
 				},
 				Pipelines: map[string]*resources.Pipeline{
-					"foo": {},
+					"foo": {
+						PipelineSpec: &pipelines.PipelineSpec{},
+					},
 				},
 			},
 		},
@@ -36,10 +44,14 @@ func TestCompletions_Filter(t *testing.T) {
 		Config: config.Root{
 			Resources: config.Resources{
 				Jobs: map[string]*resources.Job{
-					"foo": {},
+					"foo": {
+						JobSettings: &jobs.JobSettings{},
+					},
 				},
 				Pipelines: map[string]*resources.Pipeline{
-					"bar": {},
+					"bar": {
+						PipelineSpec: &pipelines.PipelineSpec{},
+					},
 				},
 			},
 		},

bundle/resources/lookup_test.go

@@ -7,6 +7,7 @@ import (
 	"github.com/databricks/cli/bundle/config"
 	"github.com/databricks/cli/bundle/config/resources"
 	"github.com/databricks/databricks-sdk-go/service/jobs"
+	"github.com/databricks/databricks-sdk-go/service/pipelines"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -28,8 +29,12 @@ func TestLookup_NotFound(t *testing.T) {
 		Config: config.Root{
 			Resources: config.Resources{
 				Jobs: map[string]*resources.Job{
-					"foo": {},
-					"bar": {},
+					"foo": {
+						JobSettings: &jobs.JobSettings{},
+					},
+					"bar": {
+						JobSettings: &jobs.JobSettings{},
+					},
 				},
 			},
 		},
@@ -45,10 +50,14 @@ func TestLookup_MultipleFound(t *testing.T) {
 		Config: config.Root{
 			Resources: config.Resources{
 				Jobs: map[string]*resources.Job{
-					"foo": {},
+					"foo": {
+						JobSettings: &jobs.JobSettings{},
+					},
 				},
 				Pipelines: map[string]*resources.Pipeline{
-					"foo": {},
+					"foo": {
+						PipelineSpec: &pipelines.PipelineSpec{},
+					},
 				},
 			},
 		},
@@ -92,10 +101,14 @@ func TestLookup_NominalWithFilters(t *testing.T) {
 		Config: config.Root{
 			Resources: config.Resources{
 				Jobs: map[string]*resources.Job{
-					"foo": {},
+					"foo": {
+						JobSettings: &jobs.JobSettings{},
+					},
 				},
 				Pipelines: map[string]*resources.Pipeline{
-					"bar": {},
+					"bar": {
+						PipelineSpec: &pipelines.PipelineSpec{},
+					},
 				},
 			},
 		},