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:
- 7,614 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 353 duplicated lines
- 69 duplicates
Duplication per Extension
Duplication per Component (primary)
Longest Duplicates
The list of 50 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 13 | x 2 | squangle/mysql_clientsquangle/mysql_client | 266:282 (4%)318:334 (4%) | view | |
| 11 | x 2 | squangle/mysql_clientsquangle/mysql_client | 484:498 (3%)335:349 (<1%) | view | |
| 10 | x 2 | squangle/mysql_clientsquangle/mysql_client | 284:297 (2%)33:46 (13%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 1446:1453 (<1%)1466:1473 (<1%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 28:35 (3%)55:62 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 55:62 (3%)61:68 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 61:68 (3%)67:74 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 28:35 (3%)61:68 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 40:47 (3%)61:68 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 40:47 (3%)55:62 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 308:315 (1%)357:364 (1%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 55:62 (3%)67:74 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 178:185 (4%)201:208 (4%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 28:35 (3%)67:74 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 40:47 (3%)67:74 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 188:195 (1%)178:185 (4%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 188:195 (1%)201:208 (4%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 34:41 (3%)40:47 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 34:41 (3%)55:62 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 34:41 (3%)61:68 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 28:35 (3%)40:47 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 28:35 (3%)34:41 (3%) | view | |
| 8 | x 2 | squangle/mysql_clientsquangle/mysql_client | 34:41 (3%)67:74 (3%) | view | |
| 7 | x 2 | squangle/mysql_clientsquangle/mysql_client | 151:157 (1%)176:182 (1%) | view | |
| 7 | x 2 | squangle/mysql_clientsquangle/mysql_client | 1420:1427 (<1%)1501:1511 (<1%) | view | |
| 7 | x 2 | squangle/mysql_clientsquangle/mysql_client | 461:467 (1%)478:484 (1%) | view | |
| 7 | x 2 | squangle/mysql_clientsquangle/mysql_client | 467:474 (1%)475:482 (1%) | view | |
| 7 | x 2 | squangle/mysql_clientsquangle/mysql_client | 452:458 (1%)122:128 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 460:465 (1%)122:127 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 1091:1099 (<1%)1108:1116 (<1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 140:145 (<1%)201:206 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 140:145 (<1%)165:170 (<1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 453:458 (1%)487:492 (1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 452:457 (1%)460:465 (1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 487:492 (1%)123:128 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 453:458 (1%)470:475 (1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 350:355 (1%)323:328 (2%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 165:170 (<1%)188:193 (<1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 165:170 (<1%)201:206 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 470:475 (1%)123:128 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 151:156 (<1%)461:466 (1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 453:458 (1%)134:139 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 165:170 (<1%)190:195 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 470:475 (1%)146:151 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 470:475 (1%)134:139 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 470:475 (1%)487:492 (1%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 178:183 (3%)190:195 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 453:458 (1%)146:151 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 134:139 (3%)146:151 (3%) | view | |
| 6 | x 2 | squangle/mysql_clientsquangle/mysql_client | 188:193 (<1%)190:195 (3%) | view |
Duplicated Units
The list of top 1 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 13 | x 2 | squangle/mysql_clientsquangle/mysql_client | 483:499 334:350 | view |