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
- 17% duplication:
- 971 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 166 duplicated lines
- 33 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
library/libs/proxy/src/main/java/com/facebook/fbui/textlayoutbuilder/proxy (75%)
--> library/src/main/java/com/facebook/fbui/textlayoutbuilder (6%)
95
1 file pair
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| library/libs/proxy/src/main/java/com/facebook/fbui/textlayoutbuilder/proxy (75%) --> library/src/main/java/com/facebook/fbui/textlayoutbuilder (6%) |
95 | 1 file pair | details... |
Longest Duplicates
The list of 33 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 14 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/libs/proxy/src/m...textlayoutbuilder/proxy | 44:57 (22%)62:75 (22%) | view | |
| 14 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 212:225 (7%)252:265 (7%) | view | |
| 14 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 30:43 (22%)53:66 (7%) | view | |
| 13 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 68:80 (6%)213:225 (6%) | view | |
| 13 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 68:80 (6%)253:265 (6%) | view | |
| 12 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 30:41 (19%)166:177 (6%) | view | |
| 12 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 53:64 (6%)166:177 (6%) | view | |
| 11 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 86:96 (5%)129:139 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 216:225 (5%)274:283 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 256:265 (5%)274:283 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 68:77 (5%)86:95 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 71:80 (5%)274:283 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 68:77 (5%)129:138 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 86:95 (5%)213:222 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 53:62 (5%)116:125 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 129:138 (5%)213:222 (5%) | view | |
| 10 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 30:39 (15%)116:125 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 86:95 (5%)253:262 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 129:138 (5%)253:262 (5%) | view | |
| 10 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 116:125 (5%)166:175 (5%) | view | |
| 7 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 44:50 (11%)128:134 (3%) | view | |
| 7 | x 2 | library/src/main/res/valueslibrary/src/main/res/values | 27:33 (29%)43:49 (29%) | view | |
| 7 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 62:68 (11%)128:134 (3%) | view | |
| 7 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 132:138 (3%)274:280 (3%) | view | |
| 7 | x 2 | library/src/main/java/co.../fbui/textlayoutbuilderlibrary/src/main/java/co.../fbui/textlayoutbuilder | 89:95 (3%)274:280 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 63:68 (9%)213:218 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 45:50 (9%)213:218 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 63:68 (9%)86:91 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 63:68 (9%)68:73 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 45:50 (9%)86:91 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 63:68 (9%)253:258 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 45:50 (9%)68:73 (3%) | view | |
| 6 | x 2 | library/libs/proxy/src/m...textlayoutbuilder/proxylibrary/src/main/java/co.../fbui/textlayoutbuilder | 45:50 (9%)253:258 (3%) | view |
