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
- 8% duplication:
- 24,683 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 2,033 duplicated lines
- 290 duplicates
Duplication per Extension
Duplication per Component (primary)
Longest Duplicates
The list of 50 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 84 | x 2 | csharp/Windows/Buildcsharp/Windows/Build | 5:126 (95%)5:126 (95%) | view | |
| 47 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 33:79 (24%)141:187 (24%) | view | |
| 47 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 21:67 (24%)93:139 (24%) | view | |
| 47 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 32:78 (25%)140:186 (25%) | view | |
| 47 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 20:66 (25%)92:138 (25%) | view | |
| 41 | x 2 | csharp/Yogacsharp/Yoga | 1:58 (59%)1:58 (51%) | view | |
| 40 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 39:79 (40%)60:100 (40%) | view | |
| 38 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 34:72 (42%)54:92 (42%) | view | |
| 38 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 81:118 (20%)153:190 (20%) | view | |
| 37 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 80:116 (19%)152:188 (19%) | view | |
| 35 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 105:139 (18%)141:175 (18%) | view | |
| 35 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 45:79 (18%)81:115 (18%) | view | |
| 35 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 104:138 (18%)140:174 (18%) | view | |
| 35 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 44:78 (18%)80:114 (18%) | view | |
| 26 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 21:46 (13%)165:190 (13%) | view | |
| 25 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 20:44 (13%)164:188 (13%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 27:49 (12%)87:109 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 27:49 (12%)51:73 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 15:37 (12%)135:157 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 86:108 (12%)98:120 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 99:121 (12%)159:181 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 98:120 (12%)158:180 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 81:103 (12%)117:139 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 21:43 (12%)57:79 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 50:72 (12%)98:120 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 51:73 (12%)99:121 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 87:109 (12%)99:121 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 26:48 (12%)50:72 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 26:48 (12%)86:108 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 27:49 (12%)159:181 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 62:84 (12%)122:144 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 80:102 (12%)116:138 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 20:42 (12%)56:78 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 26:48 (12%)158:180 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 14:36 (12%)134:156 (12%) | view | |
| 23 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 63:85 (12%)123:145 (12%) | view | |
| 22 | x 2 | csharp/Yogacsharp/Yoga | 75:105 (9%)72:102 (9%) | view | |
| 22 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 84:106 (18%)108:130 (18%) | view | |
| 22 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 36:58 (18%)60:82 (18%) | view | |
| 22 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 36:58 (18%)84:106 (18%) | view | |
| 22 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 60:82 (18%)84:106 (18%) | view | |
| 22 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 60:82 (18%)108:130 (18%) | view | |
| 22 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 36:58 (18%)108:130 (18%) | view | |
| 21 | x 2 | csharp/Yogacsharp/Yoga | 2:29 (8%)2:29 (9%) | view | |
| 20 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 159:178 (10%)171:190 (10%) | view | |
| 20 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 51:70 (10%)171:190 (10%) | view | |
| 20 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 39:58 (20%)81:100 (20%) | view | |
| 20 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 87:106 (10%)171:190 (10%) | view | |
| 20 | x 2 | csharp/Yogacsharp/Yoga | 269:297 (8%)259:287 (8%) | view | |
| 19 | x 2 | android/sample/res/layoutandroid/sample/res/layout | 34:52 (21%)74:92 (21%) | view |
Duplicated Units
The list of top 1 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 9 | x 2 | gentestgentest | 19:29 26:36 | view |
