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
- 4% duplication:
- 9,639 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 394 duplicated lines
- 60 duplicates
Duplication per Extension
Duplication per Component (primary)
Longest Duplicates
The list of 50 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 19 | x 2 | website/libwebsite/lib | 6120:6144 (<1%)6770:6794 (<1%) | view | |
| 16 | x 2 | website/libwebsite/lib | 1077:1092 (<1%)1116:1131 (<1%) | view | |
| 16 | x 2 | website/libwebsite/lib | 1074:1090 (<1%)6534:6550 (<1%) | view | |
| 14 | x 2 | website/libwebsite/lib | 1116:1129 (<1%)6537:6550 (<1%) | view | |
| 10 | x 2 | website/libwebsite/lib | 2907:2916 (<1%)5376:5385 (<1%) | view | |
| 9 | x 2 | website/libwebsite/lib | 2947:2955 (<1%)2962:2970 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6281:6288 (<1%)6678:6685 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6464:6471 (<1%)6688:6695 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6678:6685 (<1%)6688:6695 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6281:6288 (<1%)6688:6695 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6464:6471 (<1%)6678:6685 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6281:6288 (<1%)6464:6471 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 3658:3665 (<1%)3678:3685 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 2924:2931 (<1%)3996:4003 (<1%) | view | |
| 8 | x 2 | websitewebsite/lib | 86:94 (3%)6615:6623 (<1%) | view | |
| 8 | x 2 | website/libwebsite/lib | 6220:6227 (<1%)6715:6722 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5044:5050 (<1%)5066:5072 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3679:3685 (<1%)5044:5050 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5010:5016 (<1%)5044:5050 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3669:3675 (<1%)5054:5060 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6221:6227 (<1%)6679:6685 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3679:3685 (<1%)5010:5016 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6221:6227 (<1%)6282:6288 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3689:3695 (<1%)5078:5084 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5730:5736 (<1%)5748:5754 (<1%) | view | |
| 7 | x 2 | websitewebsite/lib | 116:123 (2%)4908:4915 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3679:3685 (<1%)5066:5072 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3689:3695 (<1%)5020:5026 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6221:6227 (<1%)6689:6695 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3669:3675 (<1%)5020:5026 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3669:3675 (<1%)3689:3695 (<1%) | view | |
| 7 | x 2 | websitewebsite/lib | 77:84 (2%)747:754 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5020:5026 (<1%)5078:5084 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3659:3665 (<1%)5010:5016 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5054:5060 (<1%)5078:5084 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6465:6471 (<1%)6716:6722 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6282:6288 (<1%)6716:6722 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6679:6685 (<1%)6716:6722 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5712:5718 (<1%)5721:5727 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3659:3665 (<1%)5066:5072 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5712:5718 (<1%)5730:5736 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5020:5026 (<1%)5054:5060 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6221:6227 (<1%)6465:6471 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5721:5727 (<1%)5748:5754 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3669:3675 (<1%)5078:5084 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5010:5016 (<1%)5066:5072 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 6689:6695 (<1%)6716:6722 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3689:3695 (<1%)5054:5060 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 5721:5727 (<1%)5730:5736 (<1%) | view | |
| 7 | x 2 | website/libwebsite/lib | 3659:3665 (<1%)5044:5050 (<1%) | view |
