awslabs / aws-perspective
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
  • 35% duplication:
    • 30,929 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 10,915 duplicated lines
  • 1,140 duplicates
system35% (10,915 lines)
Duplication per Extension
js32% (7,264 lines)
yaml29% (1,802 lines)
css91% (1,711 lines)
graphql36% (124 lines)
py2% (14 lines)
Duplication per Component (primary)
source/frontend/src/components46% (4,941 lines)
source/cfn/templates31% (1,464 lines)
source/frontend/src/API44% (1,029 lines)
source/frontend/src70% (873 lines)
source/frontend/src/css90% (856 lines)
source/backend/discovery/src11% (481 lines)
source/backend/functions/api30% (358 lines)
deployment23% (338 lines)
source/backend/functions/graph-api43% (124 lines)
source/backend/graphql/schema36% (124 lines)
source/frontend/src/Utils7% (120 lines)
source/backend/functions/settings22% (66 lines)
source/backend/functions/setup11% (62 lines)
source/backend/functions/cost-parser13% (45 lines)
source/backend/functions/search14% (20 lines)
source/backend/functions/cleanup-ecr35% (7 lines)
source/backend/functions/cleanup-bucket20% (7 lines)
source/frontend/src/config0% (0 lines)
source/frontend/public0% (0 lines)
source/frontend0% (0 lines)
source/backend/discovery0% (0 lines)
source/backend/discovery/sandbox0% (0 lines)
source/backend/functions/drawio0% (0 lines)
source/backend/functions/secured-edge0% (0 lines)
source/backend/functions/cur-setup0% (0 lines)
source/backend/functions/lambda-layers0% (0 lines)

Duplication Between Components (50+ lines)

G source/frontend/src/css source/frontend/src/css source/frontend/src source/frontend/src source/frontend/src/css--source/frontend/src 1711 deployment deployment source/cfn/templates source/cfn/templates deployment--source/cfn/templates 675 source/backend/discovery/src source/backend/discovery/src source/backend/functions/api source/backend/functions/api source/backend/discovery/src--source/backend/functions/api 354 source/backend/functions/graph-api source/backend/functions/graph-api source/backend/functions/api--source/backend/functions/graph-api 248 source/frontend/src/API source/frontend/src/API source/frontend/src/components source/frontend/src/components source/frontend/src/API--source/frontend/src/components 132 source/frontend/src/Utils source/frontend/src/Utils source/frontend/src/Utils--source/frontend/src/components 110

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 1,140 duplicates...
Size#FoldersFilesLinesCode
468 x 2 source/frontend/src/css
source/frontend/src
App.css
index.css
 403:1046 (49%)
383:1026 (51%)
 view
135 x 2 source/frontend/src/css
source/frontend/src
App.css
index.css
 1049:1209 (14%)
1029:1189 (14%)
 view
126 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportForm.js
AccountImportStackSetsForm.js
 51:193 (52%)
53:195 (51%)
 view
125 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportBody.js
AccountImportStackSetsBody.js
 3:147 (82%)
3:147 (85%)
 view
109 x 2 source/backend/functions/api/src
source/backend/functions/graph-api/src
hierarchy.js
hierarchy.js
 23:200 (94%)
22:199 (95%)
 view
103 x 2 source/frontend/src/css
source/frontend/src
App.css
index.css
 123:246 (10%)
121:244 (11%)
 view
95 x 2 source/frontend/src/css
source/frontend/src
App.css
index.css
 249:381 (9%)
251:383 (10%)
 view
88 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportReview.js
AccountImportStackSetsReview.js
 3:106 (100%)
3:106 (100%)
 view
77 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportTable.js
AccountImportStackSetsTable.js
 16:96 (97%)
16:96 (97%)
 view
77 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportWizard.js
AccountImportStackSetsWizard.js
 23:109 (42%)
23:109 (42%)
 view
76 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportWizard.js
AccountImportStackSetsWizard.js
 114:197 (41%)
114:196 (41%)
 view
74 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportForm.js
AccountImportStackSetsForm.js
 196:270 (30%)
201:275 (30%)
 view
72 x 2 source/frontend/src/API/...rontDistributionDetails
source/frontend/src/API/...DatabaseInstanceDetails
CloudFrontDistributionDetail.js
DatabaseInstanceDetail.js
 7:95 (100%)
7:94 (100%)
 view
71 x 2 source/frontend/src/API/...nstance/InstanceDetails
source/frontend/src/API/...3Bucket/S3BucketDetails
InstanceDetail.js
S3BucketDetails.js
 7:87 (100%)
7:87 (100%)
 view
62 x 2 source/backend/discovery/src/discovery
source/backend/functions/api/src
aws-sigv4-driver-remote-connection.js
aws-sigv4-driver-remote-connection.js
 52:140 (31%)
8:96 (37%)
 view
61 x 2 deployment
source/cfn/templates
perspective-setup.yaml
perspective-opensearch.yaml
 78:138 (4%)
44:104 (22%)
 view
59 x 2 source/frontend/src/comp...countManagement/Account
source/frontend/src/components/LandingPage
AccountImportForm.js
GettingStartedImportForm.js
 174:235 (14%)
175:236 (17%)
 view
57 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportDeploy.js
AccountImportStackSetsDeploy.js
 30:93 (63%)
39:103 (57%)
 view
51 x 2 source/frontend/src/components/Graph
source/frontend/src/components/Graph/Remove
DeleteDialog.js
DeleteDialog.js
 29:84 (57%)
28:82 (56%)
 view
48 x 2 source/frontend/src/css
source/frontend/src
App.css
index.css
 54:121 (5%)
52:119 (5%)
 view
Duplicated Units
The list of top 19 duplicated units.
See data for all 19 unit duplicates...
Size#FoldersFilesLinesCode
42 x 2 source/backend/discovery/src/discovery
source/backend/functions/api/src
aws-sigv4-driver-remote-connection.js
aws-sigv4-driver-remote-connection.js
 58:107 
14:63 
 view
23 x 2 source/backend/discovery/src/discovery
source/backend/functions/api/src
aws-sigv4-driver-remote-connection.js
aws-sigv4-driver-remote-connection.js
 112:141 
68:97 
 view
19 x 2 source/frontend/src/API/GraphQL
source/frontend/src/API/GraphQL
queries.js
queries.js
 110:129 
134:153 
 view
12 x 4 source/frontend/src/API/...3Bucket/S3BucketDetails
source/frontend/src/API/...nstance/InstanceDetails
source/frontend/src/API/...rontDistributionDetails
source/frontend/src/API/...DatabaseInstanceDetails
S3BucketDetails.js
InstanceDetail.js
CloudFrontDistributionDetail.js
DatabaseInstanceDetail.js
 42:61 
42:61 
49:69 
49:68 
 view
18 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportBody.js
AccountImportStackSetsBody.js
 51:69 
51:69 
 view
18 x 5 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
lamdbda-links.js
taskDefinition-links.js
eni-links.js
load-balancer.js
load-balancer-v2.js
 236:255 
137:156 
255:274 
32:51 
40:59 
 view
17 x 2 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
userPolicies.js
policyAccountAuthorizationDetails.js
 39:57 
59:77 
 view
12 x 2 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
autoScalingGroups.js
routeTables.js
 68:81 
74:87 
 view
9 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportDeploy.js
AccountImportStackSetsDeploy.js
 10:19 
19:28 
 view
9 x 2 source/frontend/src/comp...countManagement/Account
source/frontend/src/comp...countManagement/Account
DiscoverableAccountsAndRegionsTable.js
AccountAndRegionSettings.js
 34:43 
69:78 
 view
9 x 6 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
autoScalingGroups.js
lamdbda-links.js
taskDefinition-links.js
eni-links.js
load-balancer.js
load-balancer-v2.js
 56:66 
290:300 
170:180 
288:298 
60:70 
187:197 
 view
9 x 3 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
userPolicies.js
roleAccountAuthorizationDetails.js
policyAccountAuthorizationDetails.js
 65:75 
54:64 
47:57 
 view
8 x 3 source/frontend/src/API/GraphQL
source/frontend/src/API/GraphQL
source/frontend/src/API/GraphQL
mutations.js
mutations.js
queries.js
 30:38 
43:51 
84:92 
 view
7 x 2 source/frontend/src/comp.../Account/CloudFormation
source/frontend/src/comp...ement/Account/StackSets
AccountImportReview.js
AccountImportStackSetsReview.js
 45:52 
45:52 
 view
7 x 2 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
lamdbda-links.js
taskDefinition-links.js
 213:220 
128:135 
 view
6 x 2 source/frontend/src/components/Graph
source/frontend/src/components/Graph
Cytoscape.js
Cytoscape.js
 291:297 
343:349 
 view
6 x 2 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
lamdbda-links.js
taskDefinition-links.js
 36:44 
38:46 
 view
6 x 2 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
lamdbda-links.js
taskDefinition-links.js
 46:54 
48:56 
 view
6 x 2 source/backend/discovery/src/discovery
source/backend/discovery/src/discovery
load-balancer.js
load-balancer-v2.js
 127:134 
307:314 
 view