epam / edp-ddm-kongDuplication

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

30% duplication:

170,774 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
51,676 duplicated lines

15,021 duplicates

dependency graphs: 2D graph | 3D graph | 3D graph (with duplicates)...

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 50 longest duplicates.

See data for all 15,021 duplicates...

Size	#	Folders	Files	Lines	Code
138	x 2	kong/spec/03-plugins/36-request-transformer kong/spec/03-plugins/36-request-transformer	lua 02-access_spec.lua 02-access_spec.lua	684:828 (6%) 832:976 (6%)	view
115	x 2	kong/spec/03-plugins/09-key-auth kong/spec/03-plugins/10-basic-auth	lua 02-access_spec.lua 03-access_spec.lua	774:913 (10%) 498:638 (22%)	view
114	x 2	kong/spec/03-plugins/36-request-transformer kong/spec/03-plugins/36-request-transformer	lua 02-access_spec.lua 02-access_spec.lua	1643:1763 (5%) 1845:1965 (5%)	view
88	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	309:398 (5%) 402:491 (5%)	view
88	x 2	kong/spec/01-unit kong/spec/01-unit	lua 08-router_spec.lua 08-router_spec.lua	118:211 (2%) 2108:2201 (2%)	view
87	x 2	kong/spec/04-perf/01-rps kong/spec/04-perf/02-flamegraph	lua 07-upstream_lock_regression_spec.lua 07-upstream_lock_regression_spec.lua	68:170 (49%) 65:168 (48%)	view
73	x 2	kong/spec/02-integration/05-proxy kong/spec/02-integration/05-proxy	lua 03-upstream_headers_spec.lua 03-upstream_headers_spec.lua	248:360 (9%) 621:735 (9%)	view
59	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 02-least_connections_spec.lua 03-consistent_hashing_spec.lua	158:235 (16%) 203:278 (6%)	view
59	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	909:968 (3%) 972:1031 (3%)	view
59	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	610:669 (3%) 729:788 (3%)	view
58	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	973:1031 (3%) 1276:1334 (3%)	view
58	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	910:968 (3%) 1276:1334 (3%)	view
57	x 2	kong/spec/02-integration/05-proxy/10-balancer kong/spec/02-integration/05-proxy/10-balancer	lua 01-healthchecks_spec.lua 01-healthchecks_spec.lua	141:208 (3%) 390:457 (3%)	view
56	x 2	kong/spec/01-unit/01-db/...a/11-declarative_config kong/spec/01-unit/01-db/...a/11-declarative_config	lua 03-flatten_spec.lua 03-flatten_spec.lua	884:939 (2%) 1160:1215 (2%)	view
56	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	437:494 (3%) 734:791 (3%)	view
55	x 2	kong/spec/02-integration/05-proxy/10-balancer kong/spec/02-integration/05-proxy/10-balancer	lua 01-healthchecks_spec.lua 01-healthchecks_spec.lua	143:208 (2%) 218:284 (2%)	view
55	x 2	kong/spec/02-integration/05-proxy/10-balancer kong/spec/02-integration/05-proxy/10-balancer	lua 01-healthchecks_spec.lua 01-healthchecks_spec.lua	218:284 (2%) 392:457 (2%)	view
55	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	344:398 (3%) 734:788 (3%)	view
55	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 02-least_connections_spec.lua 04-round_robin_spec.lua	158:231 (15%) 241:313 (4%)	view
55	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	344:398 (3%) 615:669 (3%)	view
55	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 03-consistent_hashing_spec.lua 04-round_robin_spec.lua	203:274 (6%) 241:313 (4%)	view
55	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	437:491 (3%) 615:669 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	915:968 (3%) 1092:1145 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	978:1031 (3%) 1092:1145 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	438:491 (3%) 553:606 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	553:606 (3%) 616:669 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	553:606 (3%) 735:788 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	496:549 (3%) 792:845 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	345:398 (3%) 553:606 (3%)	view
54	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	1092:1145 (3%) 1281:1334 (3%)	view
53	x 2	kong/spec/03-plugins/26-prometheus kong/spec/03-plugins/26-prometheus	lua 02-access_spec.lua 04-status_api_spec.lua	19:80 (11%) 107:168 (13%)	view
53	x 2	kong/spec/01-unit kong/spec/01-unit	lua 10-log_serializer_spec.lua 10-log_serializer_spec.lua	101:171 (20%) 268:338 (20%)	view
52	x 2	kong/spec/01-unit/01-db/...a/11-declarative_config kong/spec/01-unit/01-db/...a/11-declarative_config	lua 03-flatten_spec.lua 03-flatten_spec.lua	1765:1816 (2%) 1821:1872 (2%)	view
49	x 2	kong/spec/02-integration/09-hybrid_mode kong/spec/02-integration/09-hybrid_mode	lua 01-sync_spec.lua 03-pki_spec.lua	146:211 (7%) 93:159 (42%)	view
47	x 2	kong/spec/02-integration/05-proxy/10-balancer kong/spec/02-integration/05-proxy/10-balancer	lua 01-healthchecks_spec.lua 04-round-robin_spec.lua	25:77 (2%) 13:65 (16%)	view
47	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 03-consistent_hashing_spec.lua 04-round_robin_spec.lua	2:66 (5%) 2:65 (3%)	view
44	x 2	kong/kong/clustering kong/kong/clustering	lua control_plane.lua wrpc_control_plane.lua	539:618 (11%) 303:383 (17%)	view
42	x 2	kong/spec/03-plugins/33-serverless-functions kong/spec/03-plugins/33-serverless-functions	lua 04-phases_spec.lua 04-phases_spec.lua	86:127 (34%) 107:148 (34%)	view
41	x 2	kong/spec/04-perf/01-rps kong/spec/04-perf/02-flamegraph	lua 03-plugin_iterator_spec.lua 03-plugin_iterator_spec.lua	25:81 (40%) 27:83 (39%)	view
41	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 04-round_robin_spec.lua	175:227 (2%) 259:310 (3%)	view
41	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 03-consistent_hashing_spec.lua	175:227 (2%) 221:271 (4%)	view
41	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 02-least_connections_spec.lua	175:227 (2%) 176:227 (11%)	view
41	x 2	kong/spec/01-unit/01-db/...a/11-declarative_config kong/spec/01-unit/01-db/...a/11-declarative_config	lua 03-flatten_spec.lua 03-flatten_spec.lua	628:668 (1%) 899:939 (1%)	view
41	x 2	kong/spec/01-unit/01-db/...a/11-declarative_config kong/spec/01-unit/01-db/...a/11-declarative_config	lua 03-flatten_spec.lua 03-flatten_spec.lua	628:668 (1%) 1175:1215 (1%)	view
39	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 01-generic_spec.lua 01-generic_spec.lua	1035:1073 (2%) 1338:1376 (2%)	view
39	x 2	kong/spec/03-plugins/17-ip-restriction kong/spec/03-plugins/17-ip-restriction	lua 02-access_spec.lua 02-access_spec.lua	6:54 (4%) 542:590 (4%)	view
39	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 03-consistent_hashing_spec.lua 04-round_robin_spec.lua	104:145 (4%) 110:151 (3%)	view
38	x 2	kong/spec/02-integration/05-proxy kong/spec/02-integration/05-proxy	lua 28-stream_plugins_triggering_spec.lua 28-stream_plugins_triggering_spec.lua	83:125 (17%) 177:219 (17%)	view
38	x 2	kong/spec/02-integration/03-db kong/spec/02-integration/03-db	lua 03-plugins_spec.lua 03-plugins_spec.lua	40:82 (16%) 114:156 (16%)	view
36	x 2	kong/spec/01-unit/01-db/...a/11-declarative_config kong/spec/01-unit/01-db/...a/11-declarative_config	lua 03-flatten_spec.lua 04-on-the-fly-migration_spec.lua	11:68 (1%) 11:68 (30%)	view

Duplicated Units

The list of top 20 duplicated units.

See data for all 20 unit duplicates...

Size	#	Folders	Files	Lines	Code
29	x 2	kong/spec/05-migration/plugins/http-log/migrations kong/spec	lua 001_280_to_300_spec.lua helpers.lua	16:52 1208:1244	view
28	x 2	kong/kong/db/migrations/operations kong/kong/db/migrations/operations	lua 200_to_210.lua 280_to_300.lua	456:489 73:106	view
22	x 2	kong/kong/tools kong/kong/runloop/plugin_servers	lua protobuf.lua pb_rpc.lua	7:34 98:125	view
21	x 2	kong/kong/db/migrations/operations kong/kong/db/migrations/operations	lua 200_to_210.lua 280_to_300.lua	250:276 28:54	view
18	x 2	kong/kong/plugins/basic-auth kong/kong/plugins/ldap-auth	lua access.lua access.lua	201:226 239:264	view
18	x 2	kong/kong/clustering kong/kong/clustering	lua control_plane.lua wrpc_control_plane.lua	585:615 350:380	view
14	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 04-round_robin_spec.lua 03-consistent_hashing_spec.lua	654:670 450:466	view
11	x 3	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer kong/spec/01-unit/01-db	lua 05-worker_consistency_spec.lua 01-generic_spec.lua 08-cache_warmup_spec.lua	11:23 19:31 27:39	view
11	x 3	kong/kong/plugins/syslog kong/kong/plugins/loggly kong/kong/plugins/tcp-log	lua handler.lua handler.lua handler.lua	93:106 133:147 60:73	view
10	x 2	kong/kong/tools kong/kong/runloop/plugin_servers	lua protobuf.lua pb_rpc.lua	58:72 24:38	view
8	x 2	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 04-round_robin_spec.lua 03-consistent_hashing_spec.lua	1508:1517 1079:1088	view
8	x 2	kong/kong/tools kong/kong/runloop/plugin_servers	lua protobuf.lua pb_rpc.lua	84:94 50:60	view
8	x 2	kong/kong/db/strategies kong/kong/db/dao	lua init.lua plugins.lua	63:77 210:224	view
7	x 2	kong/kong/tools kong/kong/runloop/plugin_servers	lua protobuf.lua pb_rpc.lua	74:82 40:48	view
7	x 2	kong/kong/plugins/prometheus kong/kong/api	lua serve.lua api_helpers.lua	11:22 480:491	view
7	x 2	kong/kong/clustering kong/kong/clustering	lua wrpc_data_plane.lua data_plane.lua	44:53 46:55	view
7	x 2	kong/kong/clustering kong/kong/clustering	lua control_plane.lua wrpc_control_plane.lua	74:84 103:113	view
6	x 3	kong/spec/03-plugins/27-aws-lambda kong/spec/03-plugins/27-aws-lambda kong/spec/03-plugins/27-aws-lambda	lua 07-iam-sts-credentials_spec.lua 03-iam-ec2-credentials_spec.lua 04-iam-ecs-credentials_spec.lua	15:22 15:22 16:23	view
6	x 2	kong/spec/01-unit/21-dns-client kong/spec/01-unit	lua 03-client_cache_spec.lua 14-dns_spec.lua	40:47 83:91	view
6	x 5	kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer kong/spec/01-unit/09-balancer	lua 04-round_robin_spec.lua 05-worker_consistency_spec.lua 03-consistent_hashing_spec.lua 01-generic_spec.lua 02-least_connections_spec.lua	287:294 113:120 249:256 203:210 204:211	view