awslabs / serverless-fixity-for-digital-preservation-compliance
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
  • 31% duplication:
    • 2,813 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 892 duplicated lines
  • 125 duplicates
system31% (892 lines)
Duplication per Extension
yaml46% (649 lines)
js16% (243 lines)
Duplication per Component (primary)
deployment46% (649 lines)
source/checksum/lib/algorithm35% (83 lines)
source/custom-resources/lib/solution50% (45 lines)
source/checksum/lib/metrics100% (45 lines)
source/checksum/lib/validation18% (40 lines)
source/checksum20% (18 lines)
source/checksum/lib/api5% (12 lines)
source/custom-resources/lib/sns0% (0 lines)
source/custom-resources/lib/shared0% (0 lines)
source/custom-resources0% (0 lines)
source/checksum/lib/restore0% (0 lines)
source/checksum/lib/sns0% (0 lines)
source/checksum/lib/shared0% (0 lines)

Duplication Between Components (50+ lines)

G source/checksum/lib/metrics source/checksum/lib/metrics source/custom-resources/lib/solution source/custom-resources/lib/solution source/checksum/lib/metrics--source/custom-resources/lib/solution 90

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Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
See data for all 125 duplicates...
Size#FoldersFilesLinesCode
45 x 2 source/checksum/lib/metrics
source/custom-resources/lib/solution
index.js
metrics.js
13:84 (100%)
13:84 (100%)
view
33 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
325:357 (8%)
379:411 (8%)
view
24 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
244:267 (6%)
269:292 (6%)
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21 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
97:117 (3%)
187:207 (3%)
view
21 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
97:117 (3%)
379:399 (3%)
view
21 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
97:117 (3%)
277:297 (3%)
view
21 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
187:207 (3%)
379:399 (3%)
view
21 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
187:207 (3%)
277:297 (3%)
view
21 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
277:297 (3%)
379:399 (3%)
view
19 x 2 source/checksum/lib/algorithm
source/checksum/lib/algorithm
md5.js
sha1.js
55:77 (29%)
65:87 (25%)
view
18 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
162:179 (2%)
445:462 (2%)
view
18 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
252:269 (2%)
445:462 (2%)
view
18 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
354:371 (2%)
445:462 (2%)
view
18 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
162:179 (2%)
252:269 (2%)
view
18 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
252:269 (2%)
354:371 (2%)
view
18 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
162:179 (2%)
354:371 (2%)
view
14 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
194:207 (2%)
86:99 (3%)
view
14 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
284:297 (2%)
86:99 (3%)
view
14 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
104:117 (2%)
86:99 (3%)
view
14 x 2 deployment
deployment
serverless-fixity-for-digital-preserv...
serverless-fixity-for-digital-preserv...
386:399 (2%)
86:99 (3%)
view
Duplicated Units
The list of top 1 duplicated units.
See data for all 1 unit duplicate
Size#FoldersFilesLinesCode
37 x 2 source/custom-resources/lib/solution
source/checksum/lib/metrics
metrics.js
index.js
34:79 
34:79 
view