aws-samples / serverless-samples
Duplication

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.
Learn more...
Duplication Overall
  • 78% duplication:
    • 11,031 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 8,650 duplicated lines
  • 2,854 duplicates
system78% (8,650 lines)
Duplication per Extension
yaml84% (6,444 lines)
py70% (1,470 lines)
js57% (623 lines)
yml56% (113 lines)
Duplication per Component (primary)
fargate-rest-api/javascript-rest-nlb-ecs-sam68% (2,389 lines)
serverless-rest-api/python-rest-sam93% (1,873 lines)
serverless-rest-api/python-http-sam99% (1,707 lines)
serverless-rest-api/javascript-http-sam87% (1,568 lines)
serverless-rest-api/python-http-cdk54% (660 lines)
apigw-private-custom-domain-name/iac60% (290 lines)
serverless-rest-api/shared70% (130 lines)
lambda-ecs-dual-deploy/2-flask-lambda-container86% (13 lines)
lambda-ecs-dual-deploy/3-flask-dual-deployment81% (13 lines)
lambda-ecs-dual-deploy/1-flask-app-container87% (7 lines)
apigw-private-custom-domain-name/src0% (0 lines)
terraform-sam-integration/sam0% (0 lines)
terraform-sam-integration/terraform0% (0 lines)

Duplication Between Components (50+ lines)

G serverless-rest-api/python-http-sam serverless-rest-api/python-http-sam serverless-rest-api/python-rest-sam serverless-rest-api/python-rest-sam serverless-rest-api/python-http-sam--serverless-rest-api/python-rest-sam 3121 serverless-rest-api/javascript-http-sam serverless-rest-api/javascript-http-sam serverless-rest-api/javascript-http-sam--serverless-rest-api/python-http-sam 2485 serverless-rest-api/javascript-http-sam--serverless-rest-api/python-rest-sam 2219 fargate-rest-api/javascript-rest-nlb-ecs-sam fargate-rest-api/javascript-rest-nlb-ecs-sam fargate-rest-api/javascript-rest-nlb-ecs-sam--serverless-rest-api/python-http-sam 1804 fargate-rest-api/javascript-rest-nlb-ecs-sam--serverless-rest-api/python-rest-sam 2219 fargate-rest-api/javascript-rest-nlb-ecs-sam--serverless-rest-api/javascript-http-sam 2239 serverless-rest-api/shared serverless-rest-api/shared fargate-rest-api/javascript-rest-nlb-ecs-sam--serverless-rest-api/shared 216 serverless-rest-api/python-http-cdk serverless-rest-api/python-http-cdk serverless-rest-api/python-http-cdk--serverless-rest-api/python-http-sam 780 serverless-rest-api/python-http-cdk--serverless-rest-api/python-rest-sam 726

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 2,854 duplicates...
Size#FoldersFilesLinesCode
596 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-http-sam
template.yaml
template.yaml
 199:823 (76%)
206:829 (75%)
 view
338 x 2 serverless-rest-api/python-http-sam
serverless-rest-api/python-rest-sam
template.yaml
template.yaml
 414:763 (43%)
407:756 (43%)
 view
338 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-rest-sam
template.yaml
template.yaml
 408:757 (43%)
407:756 (43%)
 view
324 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-http-sam
pipeline.yaml
pipeline.yaml
 82:411 (63%)
82:411 (63%)
 view
304 x 2 serverless-rest-api/python-http-sam
serverless-rest-api/python-rest-sam
pipeline.yaml
pipeline.yaml
 82:390 (59%)
82:390 (58%)
 view
304 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-rest-sam
pipeline.yaml
pipeline.yaml
 82:390 (59%)
82:390 (58%)
 view
165 x 2 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
authorizer.py
authorizer.py
 15:276 (100%)
15:276 (100%)
 view
165 x 2 serverless-rest-api/python-http-cdk/src/api
serverless-rest-api/python-http-sam/src/api
authorizer.py
authorizer.py
 15:276 (100%)
15:276 (100%)
 view
165 x 2 serverless-rest-api/python-http-cdk/src/api
serverless-rest-api/python-rest-sam/src/api
authorizer.py
authorizer.py
 15:276 (100%)
15:276 (100%)
 view
134 x 2 serverless-rest-api/python-http-sam
serverless-rest-api/python-rest-sam
template.yaml
template.yaml
 265:403 (17%)
258:396 (17%)
 view
134 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-rest-sam
template.yaml
template.yaml
 258:397 (17%)
258:396 (17%)
 view
133 x 2 serverless-rest-api/python-http-sam
serverless-rest-api/python-rest-sam
pipeline.yaml
pipeline.yaml
 392:538 (26%)
405:551 (25%)
 view
124 x 2 fargate-rest-api/javascript-rest-nlb-ecs-sam
serverless-rest-api/javascript-http-sam
pipeline.yaml
pipeline.yaml
 584:713 (16%)
354:483 (24%)
 view
108 x 2 fargate-rest-api/javascr...-sam/src/api/authorizer
serverless-rest-api/javascript-http-sam/src/api
authorizer.js
authorizer.js
 30:320 (50%)
30:320 (50%)
 view
101 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-http-sam
pipeline.yaml
pipeline.yaml
 426:538 (19%)
426:538 (19%)
 view
101 x 2 serverless-rest-api/javascript-http-sam
serverless-rest-api/python-rest-sam
pipeline.yaml
pipeline.yaml
 426:538 (19%)
439:551 (19%)
 view
90 x 2 serverless-rest-api/python-http-cdk/src/api
serverless-rest-api/python-http-sam/src/api
bookings.py
bookings.py
 14:115 (100%)
17:137 (100%)
 view
85 x 2 fargate-rest-api/javascript-rest-nlb-ecs-sam
serverless-rest-api/shared
cognito.yaml
cognito.yaml
 7:95 (77%)
11:99 (46%)
 view
79 x 2 fargate-rest-api/javascript-rest-nlb-ecs-sam
serverless-rest-api/python-rest-sam
template.yaml
template.yaml
 894:976 (6%)
346:428 (10%)
 view
73 x 2 serverless-rest-api/python-http-cdk/src/api
serverless-rest-api/python-http-sam/src/api
resources.py
resources.py
 13:94 (100%)
16:111 (100%)
 view
Duplicated Units
The list of top 11 duplicated units.
See data for all 11 unit duplicates...
Size#FoldersFilesLinesCode
44 x 3 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
serverless-rest-api/python-http-cdk/src/api
authorizer.py
authorizer.py
authorizer.py
 0:0 
0:0 
0:0 
 view
39 x 3 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
serverless-rest-api/python-http-cdk/src/api
authorizer.py
authorizer.py
authorizer.py
 0:0 
0:0 
0:0 
 view
27 x 3 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
serverless-rest-api/python-http-cdk/src/api
authorizer.py
authorizer.py
authorizer.py
 0:0 
0:0 
0:0 
 view
23 x 2 serverless-rest-api/javascript-http-sam/src/api
fargate-rest-api/javascr...-sam/src/api/authorizer
authorizer.js
authorizer.js
 123:149 
123:149 
 view
22 x 2 serverless-rest-api/javascript-http-sam/src/api
fargate-rest-api/javascr...-sam/src/api/authorizer
authorizer.js
authorizer.js
 30:89 
30:89 
 view
20 x 2 serverless-rest-api/javascript-http-sam/src/api
fargate-rest-api/javascr...-sam/src/api/authorizer
authorizer.js
authorizer.js
 179:203 
179:203 
 view
14 x 2 serverless-rest-api/javascript-http-sam/src/api
fargate-rest-api/javascr...-sam/src/api/authorizer
authorizer.js
authorizer.js
 297:315 
297:315 
 view
15 x 3 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
serverless-rest-api/python-http-cdk/src/api
authorizer.py
authorizer.py
authorizer.py
 0:0 
0:0 
0:0 
 view
17 x 3 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
serverless-rest-api/python-http-cdk/src/api
authorizer.py
authorizer.py
authorizer.py
 0:0 
0:0 
0:0 
 view
8 x 3 serverless-rest-api/python-http-sam/src/api
serverless-rest-api/python-rest-sam/src/api
serverless-rest-api/python-http-cdk/src/api
authorizer.py
authorizer.py
authorizer.py
 0:0 
0:0 
0:0 
 view
6 x 2 serverless-rest-api/javascript-http-sam/src/api
fargate-rest-api/javascr...-sam/src/api/authorizer
authorizer.js
authorizer.js
 160:167 
160:167 
 view