aws / amazon-vpc-cni-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 741 units with 11,040 lines of code in units (53.1% of code).

0 very complex units (0 lines of code)
4 complex units (585 lines of code)
40 medium complex units (2,458 lines of code)
83 simple units (2,600 lines of code)
614 very simple units (5,397 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() in pkg/ipamd/rpc_handler.go	155	42	1
func() in pkg/ipamd/ipamd.go	150	38	1
func() in pkg/awsutils/awsutils.go	147	33	1
func file_rpc_proto_init() in rpc/rpc.pb.go	133	30	0
func setupENINetwork() in pkg/networkutils/network.go	124	23	8
func() in pkg/awsutils/awsutils.go	98	23	1
func main() in cmd/cni-metrics-helper/main.go	93	22	0
func() in cmd/routed-eni-cni-plugin/driver/driver.go	90	22	1
func del() in cmd/routed-eni-cni-plugin/cni.go	126	21	5
func() in pkg/ipamd/rpc_handler.go	64	20	1
func() in pkg/ipamd/ipamd.go	92	20	1
func() in pkg/networkutils/network.go	61	20	1
func validateEnvVars() in cmd/aws-vpc-cni/main.go	41	17	0
func() in pkg/ipamd/ipamd.go	51	16	1
func() in cmd/egress-cni-plugin/egressContext.go	45	16	1
func add() in cmd/routed-eni-cni-plugin/cni.go	141	16	5
func() in pkg/ipamd/datastore/data_store.go	43	15	1
func() in pkg/ipamd/ipamd.go	43	15	1
func() in pkg/awsutils/awsutils.go	83	14	1
func() in pkg/awsutils/awsutils.go	53	14	1
func processMetric() in cmd/cni-metrics-helper/metrics/metrics.go	35	14	3
func() in pkg/ipamd/datastore/data_store.go	62	13	1
func() in pkg/ipamd/ipamd.go	55	13	1
func() in pkg/ipamd/ipamd.go	55	13	1
func generateJSON() in cmd/aws-vpc-cni/main.go	96	13	3
func _main() in cmd/aws-k8s-agent/main.go	57	13	0
func main() in cmd/grpc-health-probe/main.go	61	13	0
func() in cmd/routed-eni-cni-plugin/driver/driver.go	41	13	1
func describeInstanceTypes() in scripts/gen_vpc_ip_limits.go	49	12	4
func() in pkg/ipamd/datastore/data_store.go	49	12	1
func() in pkg/ipamd/ipamd.go	42	12	1
func() in pkg/networkutils/network.go	38	12	1
func() in pkg/networkutils/network.go	111	12	1
func() in pkg/networkutils/network.go	33	12	1
func EnableIpForwarding() in pkg/utils/cniutils/cni_utils.go	33	12	2
func() in pkg/awsutils/awsutils.go	57	12	1
func() in cmd/routed-eni-cni-plugin/driver/driver.go	39	12	1
func() in pkg/ipamd/datastore/data_store.go	42	11	1
func() in pkg/ipamd/ipamd.go	39	11	1
func() in pkg/ipamd/ipamd.go	22	11	1
func() in cmd/egress-cni-plugin/egressContext.go	73	11	1
func Add() in cmd/egress-cni-plugin/snat/snat.go	33	11	7
func add() in cmd/egress-cni-plugin/main.go	48	11	2
func() in cmd/routed-eni-cni-plugin/driver/driver.go	40	11	1
func() in pkg/ipamd/datastore/data_store.go	25	10	1
func() in pkg/ipamd/ipamd.go	41	10	1
func() in pkg/awsutils/awsutils.go	58	10	1
func() in cmd/egress-cni-plugin/egressContext.go	31	10	1
func postProcessingCounter() in cmd/cni-metrics-helper/metrics/metrics.go	25	10	2
func postProcessingHistogram() in cmd/cni-metrics-helper/metrics/metrics.go	46	10	2