• There are 172 files with units, with 15,209 lines of code.
• 0 very complex files (McCabe index sum 251+; 0 lines of code)
• 0 complex files (McCabe index sum 126-250; 0 lines of code)
• 8 medium complex files (McCabe index sum 51-125; 2,855 lines of code)
• 15 slightly complex files (McCabe index sum 26-50; 2,978 lines of code)
• 149 simple files (McCabe index sum 1-25; 9,376 lines of code)
• 186 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File	# lines	# units	McCabe index (sum)	per 100 lines	most complex unit
LightboxController.scala in app/controllers	449	18	99	22	14
ProxiesController.scala in app/controllers	415	13	92	22	22
InputLambdaMain.scala in lambda/input/src/main/scala	346	18	81	23	15
Auth.scala in app/controllers	439	16	73	17	10
ImprovedLargeFileCopier.scala in app/services/FileMove	443	16	68	15	11
ProxyGenerators.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common/ProxyTranscodeFramework	260	12	63	24	13
BearerTokenAuth.scala in app/auth	247	15	62	25	14
BulkDownloadsController.scala in app/controllers	256	11	53	21	19
UserController.scala in app/controllers	172	7	47	27	11
Security.scala in app/auth	178	15	43	24	8
SearchController.scala in app/controllers	270	11	43	16	6
S3XMLProcessor.scala in app/helpers	165	7	40	24	16
ImportController.scala in app/controllers	203	9	39	19	12
ScanTargetController.scala in app/controllers	214	14	37	17	7
IngestProxyQueue.scala in app/services	180	1	35	19	35
ProxyFrameworkAdminController.scala in app/controllers	215	5	34	16	10
AutoDowningLambdaMain.scala in lambda/autodowning/src/main/scala	141	9	33	23	9
GlacierRestoreActor.scala in app/services	233	6	29	12	13
FileMoveQueue.scala in app/services	129	2	27	21	26
ProxyLocation.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common	105	6	27	26	15
S3Signer.scala in app/helpers	179	9	26	15	10
ProxyFramework.scala in app/helpers	160	7	26	16	5
ProxyFrameworkQueue.scala in app/services	434	6	26	6	8
ProblemItemIndexer.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common	96	9	25	26	6
rundev.py in ProxyStatsGathering/scripts	133	8	25	19	7
ScanTargetDAO.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common/cmn_models	117	10	24	21	5
JobController.scala in app/controllers	118	6	23	19	6
ProxyLocator.scala in app/helpers	102	5	23	23	8
BucketNotificationConfigurations.scala in app/services	146	7	23	16	7
DeletedItemsController.scala in app/controllers	162	8	22	14	6
Indexer.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common	92	7	21	23	6
MainContent.scala in ProxyStatsGathering/src/main/scala	126	7	21	17	5
LightboxHelper.scala in app/helpers	152	11	20	13	4
ProxiesRelinker.scala in app/services	170	3	20	12	17
ArchiveEntry.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common	84	5	20	24	14
MediaMetadata.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common/cmn_models	88	4	20	23	13
make-dev-stack.rb in cloudformation	122	10	20	16	6
DeleteOriginalFiles.scala in app/services/FileMove	117	5	18	15	7
replay_dlq.rb in utils	90	6	16	18	6
JobModelDAO.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common/cmn_models	88	4	16	18	7
ApacheComms.scala in lambda/autodowning/src/main/scala	92	4	16	17	5
UserAvatarHelper.scala in app/helpers	93	5	15	16	5
ParanoidS3Source.scala in app/helpers	101	2	15	15	8
DynamoCapacityActor.scala in app/services	157	2	15	10	9
BucketScanner.scala in app/services	207	6	15	7	4
S3RestoreHeader.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common/cmn_helpers	48	4	15	31	5
DockerMain.scala in ProxyStatsGathering/src/main/scala	61	3	15	25	8
BrowseCollectionController.scala in app/controllers	116	4	14	12	7
ProxyLocationDAO.scala in common/src/main/scala/com/theguardian/multimedia/archivehunter/common	72	3	14	19	5
IsGlacierBranch.scala in ProxyStatsGathering/src/main/scala/StreamComponents	59	1	14	24	14

• File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
• Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
• Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
• A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.