GoogleCloudPlatform / spanner-migration-tool

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).

Learn more...

Conditional Complexity Overall

There are 1,754 units with 31,505 lines of code in units (63.8% of code).

1 very complex units (399 lines of code)
17 complex units (2,111 lines of code)
96 medium complex units (5,422 lines of code)
238 simple units (8,205 lines of code)
1,402 very simple units (15,368 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 buildTableReportBody() in internal/reports/report_helpers.go	399	85	8
func convArray() in sources/csv/data.go	172	49	2
func toSpannerTypeInternal() in sources/mysql/toddl.go	141	45	2
func toSpannerTypeInternal() in sources/sqlserver/toddl.go	119	43	2
func convArray() in sources/postgres/data.go	153	43	4
func cvtSQLScalar() in sources/postgres/infoschema.go	99	43	4
func toSpannerTypeInternal() in sources/postgres/toddl.go	140	41	2
func toSpannerTypeInternal() in sources/oracle/toddl.go	107	36	3
func() in assessment/sources/mysql/infoschema.go	100	33	1
func checkPrimaryKeyPrefix() in webv2/api/schema.go	94	32	4
func getColumnMaxSize() in assessment/sources/mysql/infoschema.go	85	31	3
func convArray() in sources/oracle/data.go	119	31	3
func UpdateForeignKeys() in webv2/api/schema.go	88	31	2
func() in conversion/data_from_database.go	169	30	1
func ReviewTableSchema() in webv2/table/review_table_schema.go	102	28	2
func LaunchDataflowJob() in streaming/streaming.go	132	27	5
initializeFromLocalStorage() in ui/src/app/components/prepare-migration/prepare-migration.component.ts	100	26	0
func main() in reverse_replication/reverse-replication-runner.go	191	26	0
func CompareSchema() in common/utils/utils.go	55	24	2
func prechecks() in reverse_replication/reverse-replication-runner.go	68	24	0
saveColumnTable() in ui/src/app/components/object-detail/object-detail.component.ts	87	23	0
func() in profiles/source_profile.go	42	22	1
func DropRule() in webv2/api/rules.go	105	21	2
func VerifyAndUpdateCfg() in streaming/streaming.go	77	21	3
func() in cmd/data.go	94	21	1
func compareValues() in sources/cassandra/validations/validation/validation.go	47	20	2
func() in profiles/source_profile.go	39	19	1
func() in conversion/conversion_from_source.go	105	19	1
func getEnvironmentFlags() in accessors/dataflow/dataflow_accessor.go	52	19	1
func InitiateJobCleanup() in streaming/cleanup.go	80	19	7
func() in profiles/source_profile.go	41	18	1
func ListConnectionProfiles() in webv2/profile/profile.go	48	18	2
func() in cmd/schema_and_data.go	98	18	1
setSpTableRows() in ui/src/app/components/object-detail/object-detail.component.ts	63	17	0
func() in profiles/source_profile.go	58	17	1
func goldenTestCasesFromFile() in testing/common/goldens.go	89	17	2
func() in assessment/collectors/infoschema_collector.go	82	17	1
func() in sources/common/toddl.go	93	17	1
func main() in sources/cassandra/validations/count/count.go	88	17	0
func() in webv2/api/schema.go	66	17	1
func ApplyRule() in webv2/api/rules.go	93	17	2
func getSourceAndTargetProfiles() in webv2/web.go	71	17	2
func RateSchema() in internal/reports/report_helpers.go	29	17	5
generateIssueReport() in ui/src/app/components/sidenav-view-assessment/sidenav-view-assessment.component.ts	78	16	0
dropColumn() in ui/src/app/components/object-detail/object-detail.component.ts	70	16	1
func WriteBadData() in conversion/store_files.go	57	16	5
func stripNull() in sources/dynamodb/data.go	46	16	1
func GetTypeMap() in webv2/api/schema.go	55	16	2
func dropTableHelper() in webv2/api/schema.go	71	16	2
func UpdateTableSchema() in webv2/table/update_table_schema.go	70	16	2