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
- 30% duplication:
- 22,898 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 6,922 duplicated lines
- 685 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
Scenarios/AzSHCI and Bare Metal with SCVMM (97%)
--> Scenarios/S2D and Bare Metal with SCVMM (97%)
1394
1 file pair
details...
Scenarios/AzSHCI Deployment (51%)
--> Scenarios/S2D Hyperconverged (63%)
1018
1 file pair
details...
Scenarios/S2D Converged (16%)
--> Scenarios/S2D Hyperconverged (16%)
268
1 file pair
details...
Scenarios/Hyper-V with Shared Storage (40%)
--> Scenarios/StorageReplica (10%)
252
2 file pairs
details...
Scenarios/S2D Converged (10%)
--> Scenarios/StorageReplica (7%)
176
2 file pairs
details...
Scenarios/AzSHCI and Kubernetes (12%)
--> Scenarios/AzSHCI and Stretch Cluster (15%)
176
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (11%)
--> Scenarios/StorageReplica (7%)
171
2 file pairs
details...
Scenarios/S2D and Bare Metal with SCVMM (11%)
--> Scenarios/StorageReplica (7%)
171
2 file pairs
details...
Scenarios/AzSHCI Deployment (8%)
--> Scenarios/StorageReplica (7%)
169
2 file pairs
details...
Scenarios/S2D Hyperconverged (10%)
--> Scenarios/StorageReplica (7%)
169
2 file pairs
details...
Scenarios/S2D and Grafana (9%)
--> Scenarios/S2D and SDN (12%)
168
1 file pair
details...
Scenarios/Azure Arc for Servers (33%)
--> Scenarios/S2D and Cloud Services Onboarding (23%)
166
1 file pair
details...
Scenarios/AzSHCI Deployment (7%)
--> Scenarios/S2D Converged (9%)
154
1 file pair
details...
Scenarios/AzSHCI Deployment (7%)
--> Scenarios/Exploring new features in 21H2 (6%)
154
1 file pair
details...
Scenarios/Rolling Cluster Upgrade (22%)
--> Scenarios/StorageReplica (6%)
150
2 file pairs
details...
Scenarios/S2D and SDN (11%)
--> Scenarios/Securing LDAP (9%)
150
1 file pair
details...
Scenarios/Hyper-V with Shared Storage (23%)
--> Scenarios/S2D and Bare Metal with SCVMM (10%)
148
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (10%)
--> Scenarios/Hyper-V with Shared Storage (23%)
148
1 file pair
details...
Scenarios/SDNExpress with SCVMM (9%)
--> Scenarios/StorageReplica (6%)
147
2 file pairs
details...
Scenarios/AzSHCI and Arc-enabled VMs (18%)
--> Scenarios/AzSHCI and Azure Benefits (12%)
118
1 file pair
details...
Scenarios/Hyper-V with Shared Storage (18%)
--> Scenarios/Rolling Cluster Upgrade (17%)
116
1 file pair
details...
Scenarios/AzSHCI and Azure Benefits (12%)
--> Scenarios/Exploring new features in 21H2 (4%)
114
1 file pair
details...
Scenarios/Hyper-V with Shared Storage (17%)
--> Scenarios/S2D Converged (6%)
106
1 file pair
details...
Scenarios/AzSHCI Deployment (5%)
--> Scenarios/AzSHCI and Azure Benefits (11%)
106
1 file pair
details...
Scenarios/SDNExpress with SCVMM (7%)
--> Scenarios/SDNExpress with Windows Admin Center (12%)
106
1 file pair
details...
Scenarios/Rolling Cluster Upgrade (15%)
--> Scenarios/S2D Converged (6%)
104
1 file pair
details...
Scenarios/Exploring new features in 21H2 (4%)
--> Scenarios/S2D and Cloud Services Onboarding (14%)
104
1 file pair
details...
Scenarios/Azure Arc for Servers (21%)
--> Scenarios/Exploring new features in 21H2 (4%)
104
1 file pair
details...
Scenarios/S2D Converged (6%)
--> Scenarios/SDNExpress with SCVMM (6%)
102
1 file pair
details...
Scenarios/Hyper-V with Shared Storage (16%)
--> Scenarios/SDNExpress with SCVMM (6%)
102
1 file pair
details...
Scenarios/Rolling Cluster Upgrade (15%)
--> Scenarios/SDNExpress with SCVMM (6%)
102
1 file pair
details...
Scenarios/Hyper-V with Shared Storage (16%)
--> Scenarios/S2D Hyperconverged (6%)
102
1 file pair
details...
Scenarios/AzSHCI Deployment (5%)
--> Scenarios/Rolling Cluster Upgrade (15%)
102
1 file pair
details...
Scenarios/AzSHCI Deployment (5%)
--> Scenarios/Hyper-V with Shared Storage (16%)
102
1 file pair
details...
Scenarios/Rolling Cluster Upgrade (15%)
--> Scenarios/S2D Hyperconverged (6%)
102
1 file pair
details...
Scenarios/AzSHCI and AVD (9%)
--> Scenarios/AzSHCI and Azure Benefits (10%)
101
1 file pair
details...
Scenarios/S2D Hyperconverged (6%)
--> Scenarios/SDNExpress with SCVMM (6%)
100
1 file pair
details...
Scenarios/AzSHCI Deployment (5%)
--> Scenarios/SDNExpress with SCVMM (6%)
100
1 file pair
details...
Scenarios/S2D and Grafana (5%)
--> Scenarios/Securing LDAP (6%)
100
1 file pair
details...
Scenarios/Azure Arc for Servers (19%)
--> Scenarios/S2D and Azure Arc (20%)
96
1 file pair
details...
Scenarios/AzSHCI and Migration from Windows Server (9%)
--> Scenarios/Exploring new features in 21H2 (4%)
95
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (6%)
--> Scenarios/AzSHCI and MDT (2%)
92
1 file pair
details...
Scenarios/AzSHCI and MDT (2%)
--> Scenarios/S2D and Bare Metal with SCVMM (6%)
90
1 file pair
details...
Scenarios/AzSHCI Deployment (3%)
--> Scenarios/AzSHCI and Migration from Windows Server (7%)
76
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (4%)
--> Scenarios/S2D Converged (4%)
70
1 file pair
details...
Scenarios/Rolling Cluster Upgrade (10%)
--> Scenarios/S2D and Bare Metal with SCVMM (4%)
70
1 file pair
details...
Scenarios/S2D and Bare Metal with SCVMM (4%)
--> Scenarios/SDNExpress with SCVMM (4%)
70
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (4%)
--> Scenarios/SDNExpress with SCVMM (4%)
70
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (4%)
--> Scenarios/Rolling Cluster Upgrade (10%)
70
1 file pair
details...
Scenarios/S2D Converged (4%)
--> Scenarios/S2D and Bare Metal with SCVMM (4%)
70
1 file pair
details...
Scenarios/S2D and Cloud Services Onboarding (9%)
--> Scenarios/StorageMigrationService (40%)
70
1 file pair
details...
Scenarios/AzSHCI Deployment (3%)
--> Scenarios/AzSHCI and Bare Metal with SCVMM (4%)
68
1 file pair
details...
Scenarios/AzSHCI Deployment (3%)
--> Scenarios/S2D and Bare Metal with SCVMM (4%)
68
1 file pair
details...
Scenarios/AzSHCI and Bare Metal with SCVMM (4%)
--> Scenarios/S2D Hyperconverged (4%)
68
1 file pair
details...
Scenarios/S2D Hyperconverged (4%)
--> Scenarios/S2D and Bare Metal with SCVMM (4%)
68
1 file pair
details...
Scenarios/Exploring new features in 21H2 (2%)
--> Scenarios/S2D Hyperconverged (4%)
68
1 file pair
details...
Scripts (<1%)
--> Tools (1%)
67
8 file pairs
details...
Scenarios/AzSHCI and Stretch Cluster (5%)
--> Scenarios/S2D and SDN (4%)
60
1 file pair
details...
Scenarios/AzSHCI Deployment (3%)
--> Scenarios/AzSHCI and Arc-enabled VMs (9%)
60
1 file pair
details...
Scenarios/S2D and SDN (4%)
--> Scenarios/StorageMigrationService (31%)
54
1 file pair
details...
Scenarios/S2D and Cloud Services Onboarding (7%)
--> Scenarios/S2D and SDN (4%)
54
1 file pair
details...
Scenarios/S2D and Azure Arc (11%)
--> Scenarios/S2D and Cloud Services Onboarding (7%)
52
1 file pair
details...
Scenarios/S2D and Azure Arc (10%)
--> Scenarios/S2D and SDN (3%)
50
1 file pair
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| Scenarios/AzSHCI and Bare Metal with SCVMM (97%) --> Scenarios/S2D and Bare Metal with SCVMM (97%) |
1394 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (51%) --> Scenarios/S2D Hyperconverged (63%) |
1018 | 1 file pair | details... |
| Scenarios/S2D Converged (16%) --> Scenarios/S2D Hyperconverged (16%) |
268 | 1 file pair | details... |
| Scenarios/Hyper-V with Shared Storage (40%) --> Scenarios/StorageReplica (10%) |
252 | 2 file pairs | details... |
| Scenarios/S2D Converged (10%) --> Scenarios/StorageReplica (7%) |
176 | 2 file pairs | details... |
| Scenarios/AzSHCI and Kubernetes (12%) --> Scenarios/AzSHCI and Stretch Cluster (15%) |
176 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (11%) --> Scenarios/StorageReplica (7%) |
171 | 2 file pairs | details... |
| Scenarios/S2D and Bare Metal with SCVMM (11%) --> Scenarios/StorageReplica (7%) |
171 | 2 file pairs | details... |
| Scenarios/AzSHCI Deployment (8%) --> Scenarios/StorageReplica (7%) |
169 | 2 file pairs | details... |
| Scenarios/S2D Hyperconverged (10%) --> Scenarios/StorageReplica (7%) |
169 | 2 file pairs | details... |
| Scenarios/S2D and Grafana (9%) --> Scenarios/S2D and SDN (12%) |
168 | 1 file pair | details... |
| Scenarios/Azure Arc for Servers (33%) --> Scenarios/S2D and Cloud Services Onboarding (23%) |
166 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (7%) --> Scenarios/S2D Converged (9%) |
154 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (7%) --> Scenarios/Exploring new features in 21H2 (6%) |
154 | 1 file pair | details... |
| Scenarios/Rolling Cluster Upgrade (22%) --> Scenarios/StorageReplica (6%) |
150 | 2 file pairs | details... |
| Scenarios/S2D and SDN (11%) --> Scenarios/Securing LDAP (9%) |
150 | 1 file pair | details... |
| Scenarios/Hyper-V with Shared Storage (23%) --> Scenarios/S2D and Bare Metal with SCVMM (10%) |
148 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (10%) --> Scenarios/Hyper-V with Shared Storage (23%) |
148 | 1 file pair | details... |
| Scenarios/SDNExpress with SCVMM (9%) --> Scenarios/StorageReplica (6%) |
147 | 2 file pairs | details... |
| Scenarios/AzSHCI and Arc-enabled VMs (18%) --> Scenarios/AzSHCI and Azure Benefits (12%) |
118 | 1 file pair | details... |
| Scenarios/Hyper-V with Shared Storage (18%) --> Scenarios/Rolling Cluster Upgrade (17%) |
116 | 1 file pair | details... |
| Scenarios/AzSHCI and Azure Benefits (12%) --> Scenarios/Exploring new features in 21H2 (4%) |
114 | 1 file pair | details... |
| Scenarios/Hyper-V with Shared Storage (17%) --> Scenarios/S2D Converged (6%) |
106 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (5%) --> Scenarios/AzSHCI and Azure Benefits (11%) |
106 | 1 file pair | details... |
| Scenarios/SDNExpress with SCVMM (7%) --> Scenarios/SDNExpress with Windows Admin Center (12%) |
106 | 1 file pair | details... |
| Scenarios/Rolling Cluster Upgrade (15%) --> Scenarios/S2D Converged (6%) |
104 | 1 file pair | details... |
| Scenarios/Exploring new features in 21H2 (4%) --> Scenarios/S2D and Cloud Services Onboarding (14%) |
104 | 1 file pair | details... |
| Scenarios/Azure Arc for Servers (21%) --> Scenarios/Exploring new features in 21H2 (4%) |
104 | 1 file pair | details... |
| Scenarios/S2D Converged (6%) --> Scenarios/SDNExpress with SCVMM (6%) |
102 | 1 file pair | details... |
| Scenarios/Hyper-V with Shared Storage (16%) --> Scenarios/SDNExpress with SCVMM (6%) |
102 | 1 file pair | details... |
| Scenarios/Rolling Cluster Upgrade (15%) --> Scenarios/SDNExpress with SCVMM (6%) |
102 | 1 file pair | details... |
| Scenarios/Hyper-V with Shared Storage (16%) --> Scenarios/S2D Hyperconverged (6%) |
102 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (5%) --> Scenarios/Rolling Cluster Upgrade (15%) |
102 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (5%) --> Scenarios/Hyper-V with Shared Storage (16%) |
102 | 1 file pair | details... |
| Scenarios/Rolling Cluster Upgrade (15%) --> Scenarios/S2D Hyperconverged (6%) |
102 | 1 file pair | details... |
| Scenarios/AzSHCI and AVD (9%) --> Scenarios/AzSHCI and Azure Benefits (10%) |
101 | 1 file pair | details... |
| Scenarios/S2D Hyperconverged (6%) --> Scenarios/SDNExpress with SCVMM (6%) |
100 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (5%) --> Scenarios/SDNExpress with SCVMM (6%) |
100 | 1 file pair | details... |
| Scenarios/S2D and Grafana (5%) --> Scenarios/Securing LDAP (6%) |
100 | 1 file pair | details... |
| Scenarios/Azure Arc for Servers (19%) --> Scenarios/S2D and Azure Arc (20%) |
96 | 1 file pair | details... |
| Scenarios/AzSHCI and Migration from Windows Server (9%) --> Scenarios/Exploring new features in 21H2 (4%) |
95 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (6%) --> Scenarios/AzSHCI and MDT (2%) |
92 | 1 file pair | details... |
| Scenarios/AzSHCI and MDT (2%) --> Scenarios/S2D and Bare Metal with SCVMM (6%) |
90 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (3%) --> Scenarios/AzSHCI and Migration from Windows Server (7%) |
76 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (4%) --> Scenarios/S2D Converged (4%) |
70 | 1 file pair | details... |
| Scenarios/Rolling Cluster Upgrade (10%) --> Scenarios/S2D and Bare Metal with SCVMM (4%) |
70 | 1 file pair | details... |
| Scenarios/S2D and Bare Metal with SCVMM (4%) --> Scenarios/SDNExpress with SCVMM (4%) |
70 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (4%) --> Scenarios/SDNExpress with SCVMM (4%) |
70 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (4%) --> Scenarios/Rolling Cluster Upgrade (10%) |
70 | 1 file pair | details... |
| Scenarios/S2D Converged (4%) --> Scenarios/S2D and Bare Metal with SCVMM (4%) |
70 | 1 file pair | details... |
| Scenarios/S2D and Cloud Services Onboarding (9%) --> Scenarios/StorageMigrationService (40%) |
70 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (3%) --> Scenarios/AzSHCI and Bare Metal with SCVMM (4%) |
68 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (3%) --> Scenarios/S2D and Bare Metal with SCVMM (4%) |
68 | 1 file pair | details... |
| Scenarios/AzSHCI and Bare Metal with SCVMM (4%) --> Scenarios/S2D Hyperconverged (4%) |
68 | 1 file pair | details... |
| Scenarios/S2D Hyperconverged (4%) --> Scenarios/S2D and Bare Metal with SCVMM (4%) |
68 | 1 file pair | details... |
| Scenarios/Exploring new features in 21H2 (2%) --> Scenarios/S2D Hyperconverged (4%) |
68 | 1 file pair | details... |
| Scripts (<1%) --> Tools (1%) |
67 | 8 file pairs | details... |
| Scenarios/AzSHCI and Stretch Cluster (5%) --> Scenarios/S2D and SDN (4%) |
60 | 1 file pair | details... |
| Scenarios/AzSHCI Deployment (3%) --> Scenarios/AzSHCI and Arc-enabled VMs (9%) |
60 | 1 file pair | details... |
| Scenarios/S2D and SDN (4%) --> Scenarios/StorageMigrationService (31%) |
54 | 1 file pair | details... |
| Scenarios/S2D and Cloud Services Onboarding (7%) --> Scenarios/S2D and SDN (4%) |
54 | 1 file pair | details... |
| Scenarios/S2D and Azure Arc (11%) --> Scenarios/S2D and Cloud Services Onboarding (7%) |
52 | 1 file pair | details... |
| Scenarios/S2D and Azure Arc (10%) --> Scenarios/S2D and SDN (3%) |
50 | 1 file pair | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 340 | x 2 | Scenarios/AzSHCI an...al with SCVMMScenarios/S2D and&n...al with SCVMM |  Scenario.ps1scenario.ps1 |
437:832 (47%)436:831 (47%) | view |
| 191 | x 2 | Scenarios/AzSHCI an...al with SCVMMScenarios/S2D and&n...al with SCVMM | Scenario.ps1scenario.ps1 |
154:381 (26%)153:380 (26%) | view |
| 159 | x 2 | Scenarios/AzSHCI DeploymentScenarios/S2D Hyperconverged | Scenario.ps1Scenario.ps1 |
694:883 (16%)539:729 (20%) | view |
| 86 | x 2 | Scenarios/AzSHCI an...al with SCVMMScenarios/S2D and&n...al with SCVMM | Scenario.ps1scenario.ps1 |
2:94 (12%)1:93 (12%) | view |
| 83 | x 2 | Scenarios/AzSHCI DeploymentScenarios/S2D Hyperconverged | Scenario.ps1Scenario.ps1 |
268:358 (8%)213:303 (10%) | view |
| 71 | x 2 | Scenarios/AzSHCI DeploymentScenarios/S2D Hyperconverged | Scenario.ps1Scenario.ps1 |
114:188 (7%)110:184 (9%) | view |
| 64 | x 2 | Scenarios/Azure Arc for ServersScenarios/S2D and&n...ervices Onboarding | Scenario.ps1scenario.ps1 |
145:211 (26%)168:234 (18%) | view |
| 64 | x 2 | Scenarios/AzSHCI and MDTScenarios/AzSHCI and MDT | Scenario.ps1Scenario.ps1 |
718:789 (4%)927:998 (4%) | view |
| 60 | x 2 | Scenarios/S2D and GrafanaScenarios/S2D and SDN | Scenario.ps1scenario.ps1 |
239:302 (8%)235:298 (9%) | view |
| 59 | x 2 | Scenarios/AzSHCI an...sp;Arc-enabled VMsScenarios/AzSHCI and Azure Benefits | Scenario.ps1Scenario.ps1 |
12:78 (18%)57:123 (12%) | view |
| 56 | x 2 | Scenarios/AzSHCI an...bsp;Windows ServerScenarios/AzSHCI an...bsp;Windows Server | Scenario.ps1Scenario.ps1 |
10:72 (11%)356:418 (11%) | view |
| 55 | x 2 | Scenarios/AzSHCI and MDTScenarios/AzSHCI and MDT | Scenario.ps1Scenario.ps1 |
1311:1369 (3%)1654:1712 (3%) | view |
| 55 | x 2 | Scenarios/AzSHCI and MDTScenarios/AzSHCI and MDT | Scenario.ps1Scenario.ps1 |
827:885 (3%)1186:1244 (3%) | view |
| 55 | x 2 | Scenarios/AzSHCI and MDTScenarios/AzSHCI and MDT | Scenario.ps1Scenario.ps1 |
831:891 (3%)1315:1375 (3%) | view |
| 53 | x 2 | Scenarios/Hyper-V w...bsp;Shared StorageScenarios/S2D Converged | Scenario.ps1Scenario.ps1 |
51:105 (17%)128:182 (6%) | view |
| 53 | x 2 | Scenarios/AzSHCI and MDTScenarios/AzSHCI and MDT | Scenario.ps1Scenario.ps1 |
1190:1246 (3%)1658:1715 (3%) | view |
| 52 | x 2 | Scenarios/Rolling C...sp;Hyper-V ReplicaScenarios/S2D Converged | Scenario.ps1Scenario.ps1 |
43:95 (15%)128:180 (6%) | view |
| 52 | x 2 | Scenarios/Exploring ...tures in 21H2Scenarios/S2D and&n...ervices Onboarding | Scenario.ps1scenario.ps1 |
564:615 (4%)173:224 (14%) | view |
| 52 | x 2 | Scenarios/Azure Arc for ServersScenarios/Exploring ...tures in 21H2 | Scenario.ps1Scenario.ps1 |
150:201 (21%)564:615 (4%) | view |
| 52 | x 2 | Scenarios/Hyper-V w...bsp;Shared StorageScenarios/Rolling C...sp;Hyper-V Replica | Scenario.ps1Scenario.ps1 |
51:103 (16%)43:95 (15%) | view |