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
- 77% duplication:
- 7,949 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 6,188 duplicated lines
- 4,692 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
pkg/apis/metrics/v1alpha1 (89%)
--> pkg/apis/metrics/v1beta1 (89%)
2824
5 file pairs
details...
pkg/apis/custom_metrics/v1beta1 (82%)
--> pkg/apis/custom_metrics/v1beta2 (71%)
1597
5 file pairs
details...
pkg/apis/custom_metrics/v1beta2 (59%)
--> pkg/apis/metrics/v1beta1 (41%)
1323
2 file pairs
details...
pkg/apis/custom_metrics/v1beta2 (59%)
--> pkg/apis/metrics/v1alpha1 (41%)
1323
2 file pairs
details...
pkg/apis/custom_metrics/v1beta1 (63%)
--> pkg/apis/metrics/v1beta1 (38%)
1224
3 file pairs
details...
pkg/apis/external_metrics/v1beta1 (76%)
--> pkg/apis/metrics/v1beta1 (38%)
1224
3 file pairs
details...
pkg/apis/custom_metrics/v1beta1 (62%)
--> pkg/apis/metrics/v1alpha1 (38%)
1210
2 file pairs
details...
pkg/apis/external_metrics/v1beta1 (75%)
--> pkg/apis/metrics/v1alpha1 (37%)
1200
2 file pairs
details...
pkg/apis/custom_metrics/v1beta2 (45%)
--> pkg/apis/external_metrics/v1beta1 (64%)
1026
4 file pairs
details...
pkg/apis/custom_metrics/v1beta1 (49%)
--> pkg/apis/external_metrics/v1beta1 (60%)
956
4 file pairs
details...
pkg/client/clientset/deprecated (65%)
--> pkg/client/clientset/versioned (62%)
637
22 file pairs
details...
pkg/apis/metrics/v1alpha1 (6%)
--> pkg/apis/metrics (76%)
214
2 file pairs
details...
pkg/apis/metrics/v1beta1 (6%)
--> pkg/apis/metrics (76%)
214
2 file pairs
details...
pkg/apis/custom_metrics/v1beta2 (6%)
--> pkg/apis/custom_metrics (53%)
152
2 file pairs
details...
pkg/apis/custom_metrics/v1beta1 (6%)
--> pkg/apis/custom_metrics (43%)
124
2 file pairs
details...
pkg/apis/external_metrics/v1beta1 (6%)
--> pkg/apis/external_metrics (69%)
102
2 file pairs
details...
| From Component --> To Component |
Duplicated Lines |
File Pairs | Details |
|---|---|---|---|
| pkg/apis/metrics/v1alpha1 (89%) --> pkg/apis/metrics/v1beta1 (89%) |
2824 | 5 file pairs | details... |
| pkg/apis/custom_metrics/v1beta1 (82%) --> pkg/apis/custom_metrics/v1beta2 (71%) |
1597 | 5 file pairs | details... |
| pkg/apis/custom_metrics/v1beta2 (59%) --> pkg/apis/metrics/v1beta1 (41%) |
1323 | 2 file pairs | details... |
| pkg/apis/custom_metrics/v1beta2 (59%) --> pkg/apis/metrics/v1alpha1 (41%) |
1323 | 2 file pairs | details... |
| pkg/apis/custom_metrics/v1beta1 (63%) --> pkg/apis/metrics/v1beta1 (38%) |
1224 | 3 file pairs | details... |
| pkg/apis/external_metrics/v1beta1 (76%) --> pkg/apis/metrics/v1beta1 (38%) |
1224 | 3 file pairs | details... |
| pkg/apis/custom_metrics/v1beta1 (62%) --> pkg/apis/metrics/v1alpha1 (38%) |
1210 | 2 file pairs | details... |
| pkg/apis/external_metrics/v1beta1 (75%) --> pkg/apis/metrics/v1alpha1 (37%) |
1200 | 2 file pairs | details... |
| pkg/apis/custom_metrics/v1beta2 (45%) --> pkg/apis/external_metrics/v1beta1 (64%) |
1026 | 4 file pairs | details... |
| pkg/apis/custom_metrics/v1beta1 (49%) --> pkg/apis/external_metrics/v1beta1 (60%) |
956 | 4 file pairs | details... |
| pkg/client/clientset/deprecated (65%) --> pkg/client/clientset/versioned (62%) |
637 | 22 file pairs | details... |
| pkg/apis/metrics/v1alpha1 (6%) --> pkg/apis/metrics (76%) |
214 | 2 file pairs | details... |
| pkg/apis/metrics/v1beta1 (6%) --> pkg/apis/metrics (76%) |
214 | 2 file pairs | details... |
| pkg/apis/custom_metrics/v1beta2 (6%) --> pkg/apis/custom_metrics (53%) |
152 | 2 file pairs | details... |
| pkg/apis/custom_metrics/v1beta1 (6%) --> pkg/apis/custom_metrics (43%) |
124 | 2 file pairs | details... |
| pkg/apis/external_metrics/v1beta1 (6%) --> pkg/apis/external_metrics (69%) |
102 | 2 file pairs | details... |
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 1111 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 |  generated.pb.gogenerated.pb.go |
251:1758 (87%)251:1758 (87%) | view |
| 164 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/custom_metrics/v1beta2 | generated.pb.gogenerated.pb.go |
787:1011 (22%)955:1179 (19%) | view |
| 133 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/custom_metrics/v1beta2 | generated.pb.gogenerated.pb.go |
460:637 (18%)663:840 (15%) | view |
| 108 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1alpha1 | generated.pb.gogenerated.pb.go |
831:978 (8%)1109:1256 (8%) | view |
| 108 | x 2 | pkg/apis/metrics/v1beta1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
831:978 (8%)1109:1256 (8%) | view |
| 108 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
831:978 (8%)1109:1256 (8%) | view |
| 108 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1109:1256 (8%)831:978 (8%) | view |
| 98 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics | zz_generated.deepcopy.gozz_generated.deepcopy.go |
30:185 (100%)30:185 (100%) | view |
| 98 | x 2 | pkg/apis/metrics/v1beta1pkg/apis/metrics | zz_generated.deepcopy.gozz_generated.deepcopy.go |
30:185 (100%)30:185 (100%) | view |
| 98 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | zz_generated.deepcopy.gozz_generated.deepcopy.go |
30:185 (100%)30:185 (100%) | view |
| 80 | x 2 | pkg/apis/custom_metrics/v1beta2pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1071:1179 (9%)1650:1758 (6%) | view |
| 80 | x 2 | pkg/apis/external_metrics/v1beta1pkg/apis/metrics/v1alpha1 | generated.pb.gogenerated.pb.go |
771:879 (12%)1650:1758 (6%) | view |
| 80 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/metrics/v1alpha1 | generated.pb.gogenerated.pb.go |
903:1011 (11%)1650:1758 (6%) | view |
| 80 | x 2 | pkg/apis/custom_metrics/v1beta2pkg/apis/metrics/v1alpha1 | generated.pb.gogenerated.pb.go |
1071:1179 (9%)1650:1758 (6%) | view |
| 80 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
903:1011 (11%)1650:1758 (6%) | view |
| 80 | x 2 | pkg/apis/custom_metrics/v1beta2pkg/apis/external_metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1071:1179 (9%)771:879 (12%) | view |
| 80 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/external_metrics/v1beta1 | generated.pb.gogenerated.pb.go |
903:1011 (11%)771:879 (12%) | view |
| 80 | x 2 | pkg/apis/external_metrics/v1beta1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
771:879 (12%)1650:1758 (6%) | view |
| 77 | x 2 | pkg/apis/custom_metrics/v1beta2pkg/apis/external_metrics/v1beta1 | generated.pb.gogenerated.pb.go |
871:977 (9%)571:677 (12%) | view |
| 75 | x 2 | pkg/apis/metrics/v1beta1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1008:1109 (5%)1403:1504 (5%) | view |
Duplicated Units
The list of top 20 duplicated units.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 276 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
980:1257 980:1257 | view |
| 209 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
769:979 769:979 | view |
| 181 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1375:1557 1375:1557 | view |
| 115 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1258:1374 1258:1374 | view |
| 115 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
1558:1674 1558:1674 | view |
| 115 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/custom_metrics/v1beta2 | generated.pb.gogenerated.pb.go |
811:927 979:1095 | view |
| 112 | x 2 | pkg/apis/custom_metrics/v1beta1pkg/apis/custom_metrics/v1beta2 | generated.pb.gogenerated.pb.go |
460:573 663:776 | view |
| 77 | x 5 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1pkg/apis/custom_metrics/v1beta1pkg/apis/custom_metrics/v1beta2pkg/apis/external_metrics/v1beta1 | generated.pb.gogenerated.pb.gogenerated.pb.gogenerated.pb.gogenerated.pb.go |
1675:1752 1675:1752 928:1005 1096:1173 796:873 | view |
| 65 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
323:388 323:388 | view |
| 50 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
452:502 452:502 | view |
| 40 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
266:306 266:306 | view |
| 30 | x 6 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1pkg/apis/custom_metrics/v1beta1pkg/apis/custom_metrics/v1beta2pkg/apis/external_metrics/v1beta1 | generated.pb.gogenerated.pb.gogenerated.pb.gogenerated.pb.gogenerated.pb.gogenerated.pb.go |
405:435 519:549 405:435 307:337 371:401 244:274 | view |
| 22 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
582:604 582:604 | view |
| 22 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
688:710 688:710 | view |
| 20 | x 2 | pkg/client/clientset/deprecated/fakepkg/client/clientset/versioned/fake | clientset_generated.goclientset_generated.go |
38:60 38:60 | view |
| 20 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
667:687 667:687 | view |
| 19 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
623:642 623:642 | view |
| 18 | x 2 | pkg/apis/metrics/v1alpha1pkg/apis/metrics/v1beta1 | generated.pb.gogenerated.pb.go |
562:580 562:580 | view |
| 18 | x 2 | pkg/apis/external_metrics/v1beta1pkg/apis/external_metrics | zz_generated.deepcopy.gozz_generated.deepcopy.go |
29:47 29:47 | view |
| 17 | x 2 | pkg/client/clientset/dep...d/metrics/v1alpha1/fakepkg/client/clientset/ver...d/metrics/v1alpha1/fake | fake_podmetrics.gofake_podmetrics.go |
52:71 54:73 | view |