Uber / kubernetes-enhancementsConditional 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 97 units with 1,732 lines of code in units (11.5% of code).

0 very complex units (0 lines of code)
1 complex units (122 lines of code)
5 medium complex units (283 lines of code)
12 simple units (349 lines of code)
79 very simple units (978 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/repo/repo.go	122	26	1
func() in pkg/repo/query.go	64	23	1
func() in pkg/repo/validate.go	63	15	1
func NewRepo() in pkg/repo/repo.go	78	12	2
func() in api/approval.go	26	11	1
func ValidatePRR() in pkg/kepval/approval.go	52	11	3
func main() in cmd/kepify/main.go	49	10	0
func ignore() in cmd/kepify/main.go	15	9	1
def edit_kep() in hack/edit-keps.py	25	8	3
func() in api/proposal.go	38	8	1
func() in pkg/repo/repo.go	37	8	1
func() in api/proposal.go	19	7	1
func isPRRRequired() in pkg/kepval/approval.go	27	7	1
func populateProposal() in pkg/proposal/create.go	32	7	2
func() in pkg/repo/query.go	25	7	1
func() in api/groups.go	29	6	1
func() in api/groups.go	33	6	1
func() in pkg/output/output.go	20	6	1
func() in api/proposal.go	16	5	1
func() in api/approval.go	21	5	1
func NewOutput() in pkg/output/output.go	41	5	3
func() in pkg/output/output.go	20	5	1
func DefaultPrintConfigs() in pkg/output/output.go	32	5	1
func selectByRegexp() in pkg/repo/query.go	16	5	2
func() in pkg/repo/write.go	22	5	1
func findMarkdownFiles() in cmd/kepify/main.go	20	4	1
func parseFiles() in cmd/kepify/main.go	17	4	2
func printJSONOutput() in cmd/kepify/main.go	18	4	2
def main() in hack/edit-keps.py	9	4	2
func runQuery() in pkg/kepctl/commands/query.go	17	4	1
func NewOptions() in pkg/proposal/options.go	18	4	4
func() in pkg/repo/repo.go	25	4	1
func() in pkg/repo/repo.go	23	4	1
func validateFile() in pkg/repo/validate.go	18	4	3
func() in api/proposal.go	8	3	1
func() in api/proposal.go	8	3	1
func IsOneOf() in api/document.go	8	3	2
func() in api/apifakes/fake_file.go	18	3	1
func() in api/apifakes/fake_file.go	11	3	1
func() in api/apifakes/fake_document.go	17	3	1
func() in api/apifakes/fake_document.go	11	3	1
func Create() in pkg/proposal/create.go	15	3	1
func createKEP() in pkg/proposal/create.go	19	3	2
func updatePersonReference() in pkg/proposal/create.go	10	3	1
func Promote() in pkg/proposal/promote.go	17	3	1
func sliceContains() in pkg/repo/query.go	8	3	2
func atLeastOne() in pkg/repo/query.go	8	3	2
func() in pkg/repo/repo.go	10	3	1
func main() in cmd/kepctl/main.go	5	2	0
func() in api/approval.go	7	2	1