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
- 11% duplication:
- 26,700 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 3,075 duplicated lines
- 249 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
cloudformation-custom-resources/kibana-customizer-lambda/requests_aws4auth (63%)
--> cloudformation-custom-resources/kibana-customizer-lambda/urllib3 (9%)
1212
1 file pair
details...
cloudformation-custom-resources/domain-setter-lambda/crhelper (99%)
--> cloudformation-custom-resources/es-cognito-auth-lambda/crhelper (99%)
656
3 file pairs
details...
cloudformation-custom-resources/domain-setter-lambda/crhelper (99%)
--> cloudformation-custom-resources/kibana-customizer-lambda/crhelper (99%)
656
3 file pairs
details...
cloudformation-custom-resources/es-cognito-auth-lambda/crhelper (99%)
--> cloudformation-custom-resources/kibana-customizer-lambda/crhelper (99%)
656
3 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| cloudformation-custom-resources/kibana-customizer-lambda/requests_aws4auth (63%) --> cloudformation-custom-resources/kibana-customizer-lambda/urllib3 (9%) |
1212 | 1 file pair | details... |
| cloudformation-custom-resources/domain-setter-lambda/crhelper (99%) --> cloudformation-custom-resources/es-cognito-auth-lambda/crhelper (99%) |
656 | 3 file pairs | details... |
| cloudformation-custom-resources/domain-setter-lambda/crhelper (99%) --> cloudformation-custom-resources/kibana-customizer-lambda/crhelper (99%) |
656 | 3 file pairs | details... |
| cloudformation-custom-resources/es-cognito-auth-lambda/crhelper (99%) --> cloudformation-custom-resources/kibana-customizer-lambda/crhelper (99%) |
656 | 3 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 606 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages |  six.pysix.py |
31:868 (100%)31:868 (100%) | view |
| 259 | x 2 | cloudformation-custom-re...-setter-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelper | resource_helper.pyresource_helper.py |
21:318 (100%)21:318 (100%) | view |
| 259 | x 2 | cloudformation-custom-re...-setter-lambda/crhelpercloudformation-custom-re...tomizer-lambda/crhelper | resource_helper.pyresource_helper.py |
21:318 (100%)21:318 (100%) | view |
| 259 | x 2 | cloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...tomizer-lambda/crhelper | resource_helper.pyresource_helper.py |
21:318 (100%)21:318 (100%) | view |
| 49 | x 2 | cloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...tomizer-lambda/crhelper | log_helper.pylog_helper.py |
6:83 (100%)6:83 (100%) | view |
| 49 | x 2 | cloudformation-custom-re...-setter-lambda/crhelpercloudformation-custom-re...tomizer-lambda/crhelper | log_helper.pylog_helper.py |
6:83 (100%)6:83 (100%) | view |
| 49 | x 2 | cloudformation-custom-re...-setter-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelper | log_helper.pylog_helper.py |
6:83 (100%)6:83 (100%) | view |
| 20 | x 2 | cloudformation-custom-re...-setter-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelper | utils.pyutils.py |
7:28 (100%)7:28 (100%) | view |
| 20 | x 2 | cloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...tomizer-lambda/crhelper | utils.pyutils.py |
7:28 (100%)7:28 (100%) | view |
| 20 | x 2 | cloudformation-custom-re...-setter-lambda/crhelpercloudformation-custom-re...tomizer-lambda/crhelper | utils.pyutils.py |
7:28 (100%)7:28 (100%) | view |
| 18 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | eucjpprober.pysjisprober.py |
52:71 (37%)52:70 (36%) | view |
| 15 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | eucjpprober.pymbcharsetprober.py |
56:71 (31%)61:75 (32%) | view |
| 15 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | mbcharsetprober.pysjisprober.py |
61:75 (32%)56:70 (30%) | view |
| 14 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | mbcssm.pymbcssm.py |
33:46 (2%)340:353 (2%) | view |
| 12 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | eucjpprober.pysjisprober.py |
77:92 (25%)77:92 (24%) | view |
| 12 | x 2 | ROOTROOT |  waf-dashboard.yaml.yamlwaf-dashboard.yaml.yaml |
62:73 (2%)446:457 (2%) | view |
| 12 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | mbcssm.pymbcssm.py |
393:404 (2%)448:459 (2%) | view |
| 11 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | langcyrillicmodel.pylangcyrillicmodel.py |
50:60 (3%)69:79 (3%) | view |
| 11 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | escsm.pyescsm.py |
95:105 (5%)150:160 (5%) | view |
| 11 | x 2 | cloudformation-custom-re...stomizer-lambda/chardetcloudformation-custom-re...stomizer-lambda/chardet | escsm.pyescsm.py |
95:105 (5%)206:216 (5%) | view |
Duplicated Units
The list of top 20 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 51 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |
| 37 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 29 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | log_helper.pylog_helper.pylog_helper.py |
0:0 0:0 0:0 | view |
| 24 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 20 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 18 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | utils.pyutils.pyutils.py |
0:0 0:0 0:0 | view |
| 16 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |
| 16 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 16 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 15 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 13 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |
| 14 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 12 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |
| 12 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 10 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | log_helper.pylog_helper.pylog_helper.py |
0:0 0:0 0:0 | view |
| 10 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |
| 9 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | resource_helper.pyresource_helper.pyresource_helper.py |
0:0 0:0 0:0 | view |
| 9 | x 3 | cloudformation-custom-re...tomizer-lambda/crhelpercloudformation-custom-re...to-auth-lambda/crhelpercloudformation-custom-re...-setter-lambda/crhelper | log_helper.pylog_helper.pylog_helper.py |
0:0 0:0 0:0 | view |
| 14 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |
| 9 | x 2 | cloudformation-custom-re...ambda/requests_aws4authcloudformation-custom-re...lambda/urllib3/packages | six.pysix.py |
0:0 0:0 | view |