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
- 29% duplication:
- 50,348 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 14,686 duplicated lines
- 5,258 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
source/packages/libraries (13%)
--> source/packages/services (3%)
1995
310 file pairs
details...
source/infrastructure (21%)
--> source/packages/services (2%)
1238
129 file pairs
details...
source/infrastructure/lambdaLayers (253%)
--> source/packages/services (1%)
792
62 file pairs
details...
source/cicd (10%)
--> source/packages/services (<1%)
309
33 file pairs
details...
source/infrastructure (2%)
--> source/packages/libraries (<1%)
122
11 file pairs
details...
source/cicd (2%)
--> source/infrastructure (1%)
88
5 file pairs
details...
source/infrastructure/lambdaLayers (22%)
--> source/packages/libraries (<1%)
69
6 file pairs
details...
source/infrastructure/lambdaLayers (16%)
--> source/infrastructure (<1%)
51
2 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| source/packages/libraries (13%) --> source/packages/services (3%) |
1995 | 310 file pairs | details... |
| source/infrastructure (21%) --> source/packages/services (2%) |
1238 | 129 file pairs | details... |
| source/infrastructure/lambdaLayers (253%) --> source/packages/services (1%) |
792 | 62 file pairs | details... |
| source/cicd (10%) --> source/packages/services (<1%) |
309 | 33 file pairs | details... |
| source/infrastructure (2%) --> source/packages/libraries (<1%) |
122 | 11 file pairs | details... |
| source/cicd (2%) --> source/infrastructure (1%) |
88 | 5 file pairs | details... |
| source/infrastructure/lambdaLayers (22%) --> source/packages/libraries (<1%) |
69 | 6 file pairs | details... |
| source/infrastructure/lambdaLayers (16%) --> source/infrastructure (<1%) |
51 | 2 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 120 | x 2 | source/packages/services/auth-devicecert/srcsource/packages/services/auth-jwt/src |  api-gw.policy.builder.tsapi-gw.policy.builder.ts |
35:333 (100%)34:332 (100%) | view |
| 85 | x 2 | source/packages/services...rary-export/src/devicessource/packages/services/assetlibrary/src/devices | devices.models.tsdevices.models.ts |
16:147 (94%)16:147 (94%) | view |
| 84 | x 2 | source/packages/services...library-export/src/datasource/packages/services/assetlibrary/src/data | common.full.dao.tscommon.full.dao.ts |
31:164 (94%)31:164 (94%) | view |
| 79 | x 2 | source/packages/services/events-alerts/src/targetssource/packages/services...ation-manager/src/utils | dynamoDb.target.dao.tsdynamoDb.util.ts |
21:143 (97%)21:143 (97%) | view |
| 73 | x 2 | source/packages/services...brary-export/src/groupssource/packages/services/assetlibrary/src/groups | groups.models.tsgroups.models.ts |
17:128 (93%)17:128 (93%) | view |
| 63 | x 2 | source/packages/services/commands/infrastructuresource/packages/services...rocessor/infrastructure |  deploy-cfn.bashdeploy-cfn.bash |
29:109 (40%)29:108 (44%) | view |
| 61 | x 2 | source/packages/services...brary-export/src/groupssource/packages/services/assetlibrary/src/groups | groups.assembler.tsgroups.assembler.ts |
66:152 (24%)66:152 (24%) | view |
| 57 | x 2 | source/packages/services...yhistory/infrastructuresource/packages/services...isioning/infrastructure |  cfn-assetLibraryHistory.ymlcfn-provisioning.yml |
18:82 (17%)18:82 (25%) | view |
| 57 | x 2 | source/packages/services...rocessor/infrastructuresource/packages/services...isioning/infrastructure | cfn-eventsProcessor.ymlcfn-provisioning.yml |
18:82 (7%)18:82 (25%) | view |
| 57 | x 2 | source/packages/services...yhistory/infrastructuresource/packages/services...rocessor/infrastructure | cfn-assetLibraryHistory.ymlcfn-eventsProcessor.yml |
18:82 (17%)18:82 (7%) | view |
| 57 | x 2 | source/packages/services...yhistory/infrastructuresource/packages/services/commands/infrastructure | cfn-assetLibraryHistory.ymlcfn-commands.yml |
18:82 (17%)18:82 (11%) | view |
| 57 | x 2 | source/packages/services/commands/infrastructuresource/packages/services...rocessor/infrastructure | cfn-commands.ymlcfn-eventsProcessor.yml |
18:82 (11%)18:82 (7%) | view |
| 57 | x 2 | source/packages/services/commands/infrastructuresource/packages/services...isioning/infrastructure | cfn-commands.ymlcfn-provisioning.yml |
18:82 (11%)18:82 (25%) | view |
| 55 | x 2 | source/packages/services/bulkcerts/infrastructuresource/packages/services...isioning/infrastructure | cfn-bulkcerts.ymlcfn-provisioning.yml |
26:89 (13%)22:84 (24%) | view |
| 54 | x 2 | source/packages/services...yhistory/infrastructuresource/packages/services/bulkcerts/infrastructure | cfn-assetLibraryHistory.ymlcfn-bulkcerts.yml |
22:82 (16%)26:87 (13%) | view |
| 54 | x 2 | source/packages/services/bulkcerts/infrastructuresource/packages/services/commands/infrastructure | cfn-bulkcerts.ymlcfn-commands.yml |
26:87 (13%)22:82 (10%) | view |
| 54 | x 2 | source/packages/services/bulkcerts/infrastructuresource/packages/services...rocessor/infrastructure | cfn-bulkcerts.ymlcfn-eventsProcessor.yml |
26:87 (13%)22:82 (7%) | view |
| 47 | x 2 | source/packages/services...rary-export/src/devicessource/packages/services/assetlibrary/src/devices | devices.assembler.tsdevices.assembler.ts |
68:131 (20%)68:131 (20%) | view |
| 44 | x 2 | source/packages/services...rary-export/src/devicessource/packages/services/assetlibrary/src/devices | devices.assembler.tsdevices.assembler.ts |
202:265 (19%)202:265 (19%) | view |
| 44 | x 2 | source/packages/services...tlibrary/infrastructuresource/packages/services...tlibrary/infrastructure | cfn-assetLibrary-parent.yamlcfn-assetLibrary.yaml |
48:97 (27%)42:91 (14%) | view |
Duplicated Units
The list of top 20 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 64 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | common.full.dao.tscommon.full.dao.ts |
38:132 38:132 | view |
| 33 | x 2 | source/packages/services...ation-manager/src/utilssource/packages/services/events-alerts/src/targets | dynamoDb.util.tsdynamoDb.target.dao.ts |
69:110 69:110 | view |
| 31 | x 2 | source/packages/services...kcerts/src/certificatessource/packages/services...kcerts/src/certificates | certificates.dao.tscertificatestask.dao.ts |
34:69 174:209 | view |
| 30 | x 2 | source/packages/services/assetlibrary/src/devicessource/packages/services...rary-export/src/devices | devices.assembler.tsdevices.assembler.ts |
291:322 291:322 | view |
| 27 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | common.full.dao.tscommon.full.dao.ts |
134:167 134:167 | view |
| 26 | x 2 | source/packages/services/auth-jwt/srcsource/packages/services/auth-devicecert/src | api-gw.policy.builder.tsapi-gw.policy.builder.ts |
96:124 97:125 | view |
| 22 | x 2 | source/packages/services...ation-manager/src/utilssource/packages/services/events-alerts/src/targets | dynamoDb.util.tsdynamoDb.target.dao.ts |
37:67 37:67 | view |
| 19 | x 2 | source/packages/services/auth-jwt/srcsource/packages/services/auth-devicecert/src | api-gw.policy.builder.tsapi-gw.policy.builder.ts |
156:179 157:180 | view |
| 19 | x 7 | source/packages/librarie...ioning-client/src/utilssource/packages/librarie...ioning-client/src/utilssource/packages/librarie...oyment-client/src/utilssource/packages/librarie...ibrary-client/src/utilssource/packages/librarie...mmands-client/src/utilssource/packages/librarie...istory-client/src/utilssource/packages/librarie...ations-client/src/utils | qs.helper.tsqs.helper.tsqs.helper.tsqs.helper.tsqs.helper.tsqs.helper.tsqs.helper.ts |
16:35 16:35 16:35 16:35 16:35 16:35 16:35 | view |
| 18 | x 2 | source/packages/services/auth-jwt/srcsource/packages/services/auth-devicecert/src | api-gw.policy.builder.tsapi-gw.policy.builder.ts |
63:81 64:82 | view |
| 18 | x 10 | source/packages/librarie...oning-client/src/clientsource/packages/librarie...oning-client/src/clientsource/packages/librarie...yment-client/src/clientsource/packages/librarie...brary-client/src/clientsource/packages/librarie...mands-client/src/clientsource/packages/librarie...mands-client/src/clientsource/packages/librarie...certs-client/src/clientsource/packages/librarie...certs-client/src/clientsource/packages/librarie...story-client/src/clientsource/packages/librarie...tions-client/src/client | things.service.tscommon.service.tscommon.service.tscommon.service.tscommands.service.tstemplates.service.tscertificates.service.tscertificatestask.service.tsevents.service.tscommon.service.ts |
69:92 27:50 32:55 27:50 74:97 49:72 46:69 41:63 52:75 27:50 | view |
| 16 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | model.tsmodel.ts |
29:45 30:46 | view |
| 15 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | assembler.tsassembler.ts |
41:59 41:59 | view |
| 15 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | assembler.tsassembler.ts |
61:79 61:79 | view |
| 15 | x 2 | source/packages/services...ibrary-export/src/utilssource/packages/services...ibraryhistory/src/utils | errors.tserrors.ts |
16:33 16:33 | view |
| 14 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | assembler.tsassembler.ts |
23:39 23:39 | view |
| 14 | x 2 | source/packages/services...mands/src/presignedurlssource/packages/services...mands/src/presignedurls | presignedurls.service.tspresignedurls.service.ts |
166:186 188:207 | view |
| 12 | x 2 | source/packages/services/assetlibrary/src/datasource/packages/services...library-export/src/data | node.tsnode.ts |
33:45 35:47 | view |
| 12 | x 3 | source/packages/services...nts-processor/src/utilssource/packages/services...ation-manager/src/utilssource/packages/services/events-alerts/src/utils | pkUtils.util.tspkUtils.util.tsdynamoDb.util.ts |
30:42 30:42 30:42 | view |
| 12 | x 2 | source/packages/services...ation-manager/src/utilssource/packages/services/events-alerts/src/targets | dynamoDb.util.tsdynamoDb.target.dao.ts |
116:130 116:130 | view |