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
- 39% duplication:
- 15,691 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 6,252 duplicated lines
- 18,283 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
meta-facebook/yv35-bb (79%)
--> meta-facebook/yv35-cl (49%)
5535
9 file pairs
details...
common/mctp (7%)
--> common/pldm (14%)
106
2 file pairs
details...
common/ipmi (2%)
--> common (10%)
58
1 file pair
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| meta-facebook/yv35-bb (79%) --> meta-facebook/yv35-cl (49%) |
5535 | 9 file pairs | details... |
| common/mctp (7%) --> common/pldm (14%) |
106 | 2 file pairs | details... |
| common/ipmi (2%) --> common (10%) |
58 | 1 file pair | details... |
Longest Duplicates
The list of 50 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 128 | x 2 | meta-facebook/yv35-bb/src/ipmimeta-facebook/yv35-cl/src/ipmi | 113:300 (16%)324:509 (11%) | view | |
| 126 | x 2 | meta-facebook/yv35-bb/src/platformmeta-facebook/yv35-cl/src/platform | 228:355 (37%)228:355 (37%) | view | |
| 73 | x 2 | meta-facebook/yv35-bb/src/ipmimeta-facebook/yv35-cl/src/ipmi | 541:632 (9%)768:858 (6%) | view | |
| 51 | x 2 | meta-facebook/yv35-bb/src/ipmimeta-facebook/yv35-cl/src/ipmi | 12:77 (100%)12:77 (100%) | view | |
| 48 | x 2 | meta-facebook/yv35-bb/src/ipmimeta-facebook/yv35-cl/src/ipmi | 1106:1157 (6%)1292:1342 (4%) | view | |
| 47 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 266:312 (2%)693:739 (2%) | view | |
| 47 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 571:617 (2%)632:678 (2%) | view | |
| 47 | x 2 | meta-facebook/yv35-cl/src/sensormeta-facebook/yv35-cl/src/sensor | 1195:1241 (1%)2784:2830 (1%) | view | |
| 44 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 680:727 (2%)2771:2818 (1%) | view | |
| 39 | x 2 | meta-facebook/yv35-bb/src/ipmimeta-facebook/yv35-cl/src/ipmi | 478:537 (5%)704:763 (3%) | view | |
| 36 | x 2 | meta-facebook/yv35-cl/src/sensormeta-facebook/yv35-cl/src/sensor | 1744:1779 (1%)1866:1901 (1%) | view | |
| 36 | x 2 | meta-facebook/yv35-cl/src/sensormeta-facebook/yv35-cl/src/sensor | 1744:1779 (1%)1805:1840 (1%) | view | |
| 36 | x 2 | meta-facebook/yv35-cl/src/sensormeta-facebook/yv35-cl/src/sensor | 1805:1840 (1%)1866:1901 (1%) | view | |
| 36 | x 2 | meta-facebook/yv35-bb/src/ipmimeta-facebook/yv35-cl/src/ipmi | 346:401 (4%)543:598 (3%) | view | |
| 36 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 205:240 (2%)388:423 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 266:300 (2%)2784:2818 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-cl/src/sensormeta-facebook/yv35-cl/src/sensor | 1927:1961 (1%)1988:2022 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1303:1337 (2%)1364:1398 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-cl/src/sensormeta-facebook/yv35-cl/src/sensor | 1378:1412 (1%)1622:1656 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 449:483 (2%)1378:1412 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1364:1398 (2%)1425:1459 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1364:1398 (2%)1486:1520 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1181:1215 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1120:1154 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1242:1276 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1364:1398 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1303:1337 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1303:1337 (2%)1486:1520 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1486:1520 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1181:1215 (2%)1242:1276 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1303:1337 (2%)1425:1459 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1059:1093 (2%)1425:1459 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1181:1215 (2%)1364:1398 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1181:1215 (2%)1303:1337 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1181:1215 (2%)1486:1520 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1181:1215 (2%)1425:1459 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 266:300 (2%)1195:1229 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 693:727 (2%)1195:1229 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 876:910 (2%)2293:2327 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-cl/src/sensor | 449:483 (2%)1622:1656 (1%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 998:1032 (2%)1547:1581 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 998:1032 (2%)1669:1703 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1242:1276 (2%)1425:1459 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1242:1276 (2%)1486:1520 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1242:1276 (2%)1303:1337 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1242:1276 (2%)1364:1398 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1425:1459 (2%)1486:1520 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1547:1581 (2%)1669:1703 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1120:1154 (2%)1425:1459 (2%) | view | |
| 35 | x 2 | meta-facebook/yv35-bb/src/sensormeta-facebook/yv35-bb/src/sensor | 1120:1154 (2%)1486:1520 (2%) | view |
Duplicated Units
The list of top 7 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 58 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 12:78 12:78 | view | |
| 43 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 810:859 584:633 | view | |
| 39 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 327:374 116:163 | view | |
| 36 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 408:451 198:242 | view | |
| 36 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 453:495 244:286 | view | |
| 23 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 181:207 34:60 | view | |
| 23 | x 2 | meta-facebook/yv35-cl/src/ipmimeta-facebook/yv35-bb/src/ipmi | 376:406 165:196 | view |