• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 209 files with 23,969 lines of code.
• 4 very long files (6,850 lines of code)
• 8 long files (5,609 lines of code)
• 12 medium size files (4,187 lines of codeclsfd_ftr_w_mp_ins)
• 23 small files (3,401 lines of code)
• 162 very small files (3,922 lines of code)

There are 70 files with lines longer than 120 characters. In total, there are 578 long lines.

File	# lines	# units	# long lines
OSSObjectTests.m in AliyunOSSiOSTests	2273	-	70
OSSClient.m in AliyunOSSSDK	1885	-	66
AliyunOSSiOSTests.m in AliyunOSSiOSTests	1415	-	48
OSSConfigurationTest.m in AliyunOSSiOSTests	388	-	34
OSSSingerTest.m in AliyunOSSiOSTests	678	-	31
OSSNetworking.m in AliyunOSSSDK	431	-	18
OSSNormalObjectTests.swift in OSSSwiftDemo/OSSSwiftDemoTests	673	35	18
OSSHttpResponseParser.m in AliyunOSSSDK	641	-	16
OSSRootViewController.swift in OSSSwiftDemo/OSSSwiftDemo/Classes	483	18	15
ViewController.m in Example/AliyunOSSSDK-iOS-Example/Classes	293	-	14
OSSV4Signer.m in AliyunOSSSDK/Signer	293	-	13
OSSModel.m in AliyunOSSSDK	639	-	13
OSSLog.swift in AliyunOSSSDK	63	-	12
OSSCredentialProviderTests.m in AliyunOSSiOSTests	116	-	12
SequentialMultipartUploadTests.swift in OSSSwiftDemo/OSSSwiftDemoTests	204	7	12
OSSWrapper.m in Example/AliyunOSSSDK-iOS-Example/Classes/Wrapper	146	-	11
OSSUtil.m in AliyunOSSSDK	1277	-	11
OSSTaskTests.swift in OSSSwiftDemo/OSSSwiftDemoTests	642	52	10
OSSTaskTests.m in AliyunOSSiOSTests	708	-	8
SequentialMultipartUploadTests.m in AliyunOSSiOSTests	185	-	8
OSSExceptionalTests.swift in OSSSwiftDemo/OSSSwiftDemoTests	178	10	8
ViewController.m in Example/AliyunOSSSDK-Example/Classes	194	-	7
OSSFileLogger.m in AliyunOSSSDK/OSSFileLog	896	1	7
OSSDDLog.m in AliyunOSSSDK/OSSFileLog	732	4	7
OSSTask.m in AliyunOSSSDK/OSSTask	478	-	6
OSSConfigurationTest.swift in OSSSwiftDemo/OSSSwiftDemoTests	155	8	6
OSSXMLDictionary.m in AliyunOSSSDK	475	-	5
OSSModel.h in AliyunOSSSDK	397	-	5
OSSLogMacros.h in AliyunOSSSDK/OSSFileLog	27	1	5
OSSCancellationTests.swift in OSSSwiftDemo/OSSSwiftDemoTests	135	13	5
OssService.m in Example/AliyunOSSSDK-Example/Classes/Services	265	-	4
OSSV1Signer.m in AliyunOSSSDK/Signer	89	-	4
OSSHttpdns.m in AliyunOSSSDK	94	-	4
OSSCrc64Tests.m in AliyunOSSiOSTests	262	-	4
AppDelegate.m in Example/AliyunOSSSDK-iOS-Example/Classes	30	-	3
OSSUtil.h in AliyunOSSSDK	52	-	3
OSSCompat.m in AliyunOSSSDK	218	-	3
OSSClientTests.m in AliyunOSSiOSTests	24	-	3
OSSCnameTests.swift in OSSSwiftDemo/OSSSwiftDemoTests	65	3	3
OSSCheckMd5Tests.swift in OSSSwiftDemo/OSSSwiftDemoTests	71	3	3
DownloadService.m in Example/AliyunOSSSDK-iOS-Example/Classes/Wrapper	170	-	2
OSSNetworkingRequestDelegate.m in AliyunOSSSDK	145	-	2
OSSSignUtils.m in AliyunOSSSDK/Signer	88	-	2
OSSDDLog.h in AliyunOSSSDK/OSSFileLog	192	3	2
OSSTask.h in AliyunOSSSDK/OSSTask	50	-	2
OSSConstants.h in AliyunOSSSDK	106	9	2
OSSExecutorTests.m in AliyunOSSiOSTests	57	-	2
OSSUtilsTests.m in AliyunOSSiOSTests	140	-	2
TriggerCallbackTests.m in AliyunOSSiOSTests	43	-	2
OSSTestUtils.m in AliyunOSSiOSTests	110	-	2