Places in code with 6 or more lines that are exactly the same.
Intro
- For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
- Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
- You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
- To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:
- Avoid Repetition, MartinFlower.com (IEEE Software article)
- Refactoring duplicated code, sourcemaking.com
- Beck Design Rules, MartinFowler.com
- DRY (Don't Repeat Yourself) Principle, Wikipedia
- The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
- Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:
- "Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"
- Reducing Coupling, MartinFlower.com (IEEE Software article):
- "There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."
Duplication Overall
- 40% duplication:
- 39,608 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 15,856 duplicated lines
- 2,764 duplicates
Duplication per Extension
Duplication per Component (primary)
Duplication Between Components (50+ lines)
Open 3D force graph...
Show more details on duplication between components...
From Component
--> To Component
Duplicated
Lines
File Pairs
Details
Source/Actions/Microsoft.Deployment.Actions.Salesforce (82%)
--> Source/Site/Microsoft.Deployment.Site.Msi (94%)
7980
1 file pair
details...
Functions/FunctionCode/News (45%)
--> Source/Apps/Microsoft (4%)
542
22 file pairs
details...
Functions/FunctionCode/Twitter (60%)
--> Source/Apps/Microsoft (3%)
455
2 file pairs
details...
Source/Actions/Microsoft.Deployment.Actions.AzureCustom (3%)
--> Source/Actions/Microsoft.Deployment.Common (3%)
294
20 file pairs
details...
Source/Apps/Microsoft (1%)
--> Source/SiteCommon/Web (<1%)
153
5 file pairs
details...
Functions/FunctionCode/News (6%)
--> Functions/FunctionCode/Twitter (10%)
79
3 file pairs
details...
Functions/FunctionCode/FacebookBrandMangement (82%)
--> Functions/FunctionCode/FacebookPageAnalytics (86%)
74
6 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| Source/Actions/Microsoft.Deployment.Actions.Salesforce (82%) --> Source/Site/Microsoft.Deployment.Site.Msi (94%) |
7980 | 1 file pair | details... |
| Functions/FunctionCode/News (45%) --> Source/Apps/Microsoft (4%) |
542 | 22 file pairs | details... |
| Functions/FunctionCode/Twitter (60%) --> Source/Apps/Microsoft (3%) |
455 | 2 file pairs | details... |
| Source/Actions/Microsoft.Deployment.Actions.AzureCustom (3%) --> Source/Actions/Microsoft.Deployment.Common (3%) |
294 | 20 file pairs | details... |
| Source/Apps/Microsoft (1%) --> Source/SiteCommon/Web (<1%) |
153 | 5 file pairs | details... |
| Functions/FunctionCode/News (6%) --> Functions/FunctionCode/Twitter (10%) |
79 | 3 file pairs | details... |
| Functions/FunctionCode/FacebookBrandMangement (82%) --> Functions/FunctionCode/FacebookPageAnalytics (86%) |
74 | 6 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 3990 | x 2 | Source/Actions/Microsoft...ferences/SalesforceSOAPSource/Site/Microsoft.De...ferences/SalesforceSOAP | wsdl partner.wsdlpartner.wsdl |
1:5265 (100%)1:5265 (100%) | view |
| 199 | x 2 | Source/Apps/Microsoft/Re...rvice/Resources/ScriptsSource/Apps/Microsoft/Re...rvice/Resources/Scripts |  dataload.ps1dataload_signed.ps1 |
1:224 (100%)1:224 (50%) | view |
| 172 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate |  README.MDREADME.MD |
621:803 (20%)637:819 (20%) | view |
| 154 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate | README.MDREADME.MD |
209:412 (18%)225:428 (18%) | view |
| 145 | x 2 | Source/Apps/Microsoft/Re...oft-ActivityLogTemplateSource/Apps/Microsoft/Re...5UsageAnalytics-Removed | README.MDREADME.MD |
1:207 (100%)1:207 (100%) | view |
| 131 | x 2 | Source/Apps/Microsoft/Re...rvice/Resources/ScriptsSource/Apps/Microsoft/Re...rvice/Resources/Scripts | dataload.ps1dataload.ps1 |
29:173 (59%)41:185 (65%) | view |
| 131 | x 2 | Source/Apps/Microsoft/Re...rvice/Resources/ScriptsSource/Apps/Microsoft/Re...rvice/Resources/Scripts | dataload.ps1dataload_signed.ps1 |
29:173 (59%)41:185 (33%) | view |
| 116 | x 2 | Source/SiteCommon/Web/pages-gallerySource/SiteCommon/Web/pages-gallery |  azure-login.tscc-storage-details.ts |
11:190 (98%)11:190 (98%) | view |
| 108 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate | README.MDREADME.MD |
477:618 (13%)493:634 (12%) | view |
| 76 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate | README.MDREADME.MD |
74:204 (9%)91:221 (9%) | view |
| 65 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate | README.MDREADME.MD |
806:870 (7%)822:886 (7%) | view |
| 50 | x 2 | Source/Actions/Microsoft...zureCustom/ActivityLogsSource/Actions/Microsoft...zureCustom/ActivityLogs |  CreateEventHubNameSpace.csCreateStreamAnalyticsJob.cs |
44:120 (69%)38:115 (75%) | view |
| 49 | x 2 | Source/Apps/Microsoft/Re...wsTemplate/Service/DataSource/Apps/Microsoft/Re...ice/NewsFunction/shared | csx HtmlCleaner.csxHtmlCleaner.csx |
1:93 (100%)1:93 (100%) | view |
| 49 | x 2 | Functions/FunctionCode/News/SharedSource/Apps/Microsoft/Re...ice/NewsFunction/shared | csx HtmlCleaner.csxHtmlCleaner.csx |
1:93 (100%)1:93 (100%) | view |
| 49 | x 2 | Source/Actions/Microsoft...ons.AzureCustom/AzureMLSource/Actions/Microsoft...ions.AzureCustom/Reddit | DeployAzureMLWebServiceFromFile.csDeployRedditAzureMLWebServiceFromFile.cs |
82:182 (56%)90:191 (47%) | view |
| 49 | x 2 | Functions/FunctionCode/News/SharedSource/Apps/Microsoft/Re...wsTemplate/Service/Data | csx HtmlCleaner.csxHtmlCleaner.csx |
1:93 (100%)1:93 (100%) | view |
| 43 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate | README.MDREADME.MD |
872:923 (5%)888:939 (5%) | view |
| 34 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2Source/Apps/Microsoft/Re.../Microsoft-SCCMTemplate | README.MDREADME.MD |
426:473 (4%)442:489 (4%) | view |
| 34 | x 2 | Source/SiteCommon/Web/pages-gallerySource/SiteCommon/Web/pages-gallery |  azure-login.htmlcc-storage-details.html |
7:56 (75%)11:60 (82%) | view |
| 33 | x 2 | Functions/FunctionCode/T...TweetProcessingFunctionSource/Apps/Microsoft/Re...erTemplate/Service/Data | TweetFunctionCSharp.csTweetFunctionCSharp.cs |
90:131 (11%)142:183 (10%) | view |
Duplicated Units
The list of top 20 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 50 | x 2 | Source/Actions/Microsoft...ons.AzureCustom/AzureMLSource/Actions/Microsoft...ions.AzureCustom/Reddit | DeployAzureMLWebServiceFromFile.csDeployRedditAzureMLWebServiceFromFile.cs |
124:183 133:192 | view |
| 38 | x 3 | Source/Actions/Microsoft...ureCustom/ApiManagementSource/Actions/Microsoft...ureCustom/ApiManagementSource/Actions/Microsoft...ureCustom/ApiManagement | DeployGeoFill.csDeployGraphCallsLogicApp.csProcessIPAddressesLogicApp.cs |
22:72 22:72 22:72 | view |
| 33 | x 2 | Functions/FunctionCode/News/MainImageExtractorSource/Apps/Microsoft/Re...tion/MainImageExtractor | csx run.csxrun.csx |
11:53 11:53 | view |
| 31 | x 2 | Functions/FunctionCode/T...TweetProcessingFunctionSource/Apps/Microsoft/Re...erTemplate/Service/Data | TweetFunctionCSharp.csTweetFunctionCSharp.cs |
480:522 525:567 | view |
| 30 | x 2 | Source/Actions/Microsoft...zureCustom/ActivityLogsSource/Actions/Microsoft...zureCustom/ActivityLogs | SetAdministrativeOutput.csSetServiceHealthOutput.cs |
15:45 15:45 | view |
| 29 | x 2 | Functions/FunctionCode/N...TriggerHistorySentimentFunctions/FunctionCode/Twitter/TriggerHistory | csx run.csxrun.csx |
13:51 13:51 | view |
| 28 | x 2 | Source/SiteCommon/Web/pages-gallerySource/SiteCommon/Web/pages-gallery | ax-connector-login.tstwitter.ts |
24:55 23:54 | view |
| 28 | x 2 | Source/SiteCommon/Web/pages-gallerySource/SiteCommon/Web/pages-gallery | azure-login.tscc-storage-details.ts |
40:70 40:70 | view |
| 27 | x 2 | Source/SiteCommon/Web/pages-gallerySource/SiteCommon/Web/pages-gallery | azure-login.tscc-storage-details.ts |
88:121 88:121 | view |
| 24 | x 2 | Source/Apps/Microsoft/Released/Microsoft-SCCM2/WebSource/SiteCommon/Web/pages-gallery | customize.tscustomize-sccm.ts |
18:48 19:49 | view |
| 22 | x 3 | Source/Actions/Microsoft...zureCustom/ActivityLogsSource/Actions/Microsoft...zureCustom/ActivityLogsSource/Actions/Microsoft.Deployment.Common/Helpers | CreateEventHubNameSpace.csCreateStreamAnalyticsJob.csDeploymentHelper.cs |
96:122 91:117 54:80 | view |
| 22 | x 2 | Source/Actions/Microsoft...Actions.AzureCustom/ArmSource/Actions/Microsoft...IoTContinuousDataExport | DeployAzureArmTemplate.csDeployIoTCDEDataFactory.cs |
99:126 100:127 | view |
| 21 | x 3 | Functions/FunctionCode/News/SharedSource/Apps/Microsoft/Re...wsTemplate/Service/DataSource/Apps/Microsoft/Re...ice/NewsFunction/shared | csx HtmlCleaner.csxHtmlCleaner.csxHtmlCleaner.csx |
49:71 49:71 49:71 | view |
| 21 | x 2 | Source/Actions/Microsoft...ment.Actions.Common/PBISource/Actions/Microsoft...ment.Actions.Common/PBI | WranglePBI.csWranglePBISSAS.cs |
21:45 20:44 | view |
| 20 | x 2 | Functions/FunctionCode/News/HTMLCleanerWebhookSource/Apps/Microsoft/Re...wsTemplate/Service/Data | csx run.csxHtmlCleanerWebhook.csx |
10:36 10:36 | view |
| 16 | x 4 | Functions/Code/Reddit/Src/RedditCore/DataModelFunctions/Code/Reddit/Src/RedditCore/DataModelFunctions/Code/Reddit/Src/RedditCore/DataModelFunctions/Code/Reddit/Src/RedditCore/DataModel | Comment.Partial.csPost.Partial.csUserDefinedEntity.Partial.csUserDefinedEntityDefinition.Partial.cs |
8:28 8:28 9:29 8:28 | view |
| 16 | x 4 | Functions/FunctionCode/F...dMangement/MergeTriggerFunctions/FunctionCode/F...ment/UpdateEdgesTriggerFunctions/FunctionCode/F...eAnalytics/MergeTriggerFunctions/FunctionCode/F...tics/UpdateEdgesTrigger | csx run.csxrun.csxrun.csxrun.csx |
15:31 15:31 15:31 15:31 | view |
| 16 | x 2 | Source/Actions/Microsoft...zureCustom/ActivityLogsSource/Actions/Microsoft...ctions.AzureCustom/News | GetHistoricalData.csPopulateUserDefinedEntities.cs |
168:184 60:76 | view |
| 15 | x 3 | Functions/FunctionCode/News/SharedSource/Apps/Microsoft/Re...wsTemplate/Service/DataSource/Apps/Microsoft/Re...ice/NewsFunction/shared | csx HtmlCleaner.csxHtmlCleaner.csxHtmlCleaner.csx |
32:47 32:47 32:47 | view |
| 15 | x 3 | Functions/FunctionCode/News/TimeUtilsWebhookSource/Apps/Microsoft/Re...wsTemplate/Service/DataSource/Apps/Microsoft/Re...nction/TimeUtilsWebHook | csx run.csxTimeUtilsWebhook.csxrun.csx |
10:32 10:32 10:32 | view |