elastic / cloud-on-k8s - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 3,385 units with 43,925 lines of code in units (45.8% of code).

0 very complex units (0 lines of code)
5 complex units (933 lines of code)
77 medium complex units (4,529 lines of code)
359 simple units (11,084 lines of code)
2,944 very simple units (27,379 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
func startOperator() in cmd/manager/main.go	268	43	1
func() in pkg/controller/elasticsearch/driver/driver.go	215	42	1
func() in pkg/controller/elasticsearch/driver/nodes.go	158	36	1
func() in pkg/controller/association/reconciler.go	150	32	1
func doReconcile() in pkg/controller/remotecluster/controller.go	142	30	3
func() in pkg/controller/stackconfigpolicy/controller.go	106	25	1
func ReconcileResource() in pkg/controller/common/reconciler/reconciler.go	93	24	1
func applyServerSideValues() in pkg/controller/common/service_control.go	52	21	2
func() in pkg/controller/autoscaling/elasticsearch/controller.go	118	21	1
func() in pkg/dev/portforward/service_forwarder.go	70	20	1
func() in pkg/controller/kibana/driver.go	94	19	1
func() in pkg/controller/common/certificates/http_reconcile.go	66	19	1
func() in pkg/controller/license/trial/trial_controller.go	38	19	1
func buildPodTemplate() in pkg/controller/beat/common/pod.go	129	18	3
func() in pkg/controller/elasticsearch/nodespec/desired_nodes.go	74	17	1
func reconcileNodeSetTransportCertificatesSecrets() in pkg/controller/elasticsearch/certificates/transport/reconcile.go	81	17	7
func() in hack/deployer/runner/gke.go	69	17	1
func reconcileAPIKeys() in pkg/controller/remotecluster/apikey.go	73	16	8
func RecreateStatefulSets() in pkg/controller/common/volume/pvc_expansion.go	49	16	4
func reconcileEnrollmentToken() in pkg/controller/agent/fleet.go	48	16	2
func() in pkg/controller/elasticsearch/driver/upgrade.go	77	15	1
func() in pkg/controller/association/reconciler.go	63	15	1
func() in pkg/controller/maps/controller.go	75	15	1
func hasCorrectNodeRoles() in pkg/controller/elasticsearch/validation/validations.go	31	14	1
func NewConfigSettings() in pkg/controller/kibana/config_settings.go	71	14	6
func reconcileStatefulSet() in pkg/controller/logstash/reconcile.go	62	14	2
func ParseSANGeneralNamesOtherNamesOnly() in pkg/controller/common/certificates/x509_othername.go	53	14	1
func getFleetSetupFleetEnvVars() in pkg/controller/agent/pod.go	47	14	3
func() in pkg/controller/autoscaling/elasticsearch/driver.go	92	14	1
func() in pkg/controller/enterprisesearch/enterprisesearch_controller.go	68	14	1
func validSettings() in pkg/apis/stackconfigpolicy/v1alpha1/webhook.go	43	14	1
func() in pkg/apis/logstash/v1alpha1/zz_generated.deepcopy.go	58	14	1
func() in pkg/dev/portforward/pod_forwarder.go	71	14	1
func() in hack/deployer/runner/eks.go	48	14	1
func() in pkg/controller/stackconfigpolicy/controller.go	60	13	1
func() in pkg/controller/elasticsearch/filesettings/file_settings.go	41	13	1
func ValidateAutoscalingPolicies() in pkg/controller/common/autoscaling/validations.go	88	13	2
func() in pkg/controller/common/license/verifier.go	55	13	1
func() in pkg/controller/common/license/verifier.go	58	13	1
func buildOutputConfig() in pkg/controller/agent/config.go	54	13	1
func internalReconcile() in pkg/controller/agent/driver.go	58	13	1
func nodeSetsResourcesResourcesFromStatefulSets() in pkg/controller/autoscaling/elasticsearch/status/actual.go	59	13	4
func Generate() in hack/operatorhub/internal/operatorhub/operatorhub.go	57	13	1
func extractYAMLParts() in hack/operatorhub/internal/operatorhub/operatorhub.go	54	13	1
func buildRenderParams() in hack/operatorhub/internal/operatorhub/operatorhub.go	62	13	4
func copyChartToGCSBucket() in hack/helm/release/internal/helm/helm.go	44	13	4
func() in pkg/controller/elasticsearch/driver/autoscaling.go	51	12	1
func reconcileSuspendedPods() in pkg/controller/elasticsearch/driver/suspend.go	38	12	4
func reconcileEsUserSecret() in pkg/controller/association/user.go	73	12	7
func AllowVersion() in pkg/controller/association/conf.go	38	12	4