mozilla / metric-hub - Duplication

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.

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Duplication Overall

60% duplication:

39,151 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
23,580 duplicated lines

4,553 duplicates

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

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
definitions (4%) --> jetstream (<1%)	487	34 file pairs	details...
definitions (4%) --> opmon (5%)	455	20 file pairs	details...
jetstream (<1%) --> opmon (<1%)	70	7 file pairs	details...

Open 2D force graph... Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 4,553 duplicates...

Size	#	Folders	Files	Lines	Code
651	x 2	jetstream jetstream	parallel-marking-experiment-2.toml parallel-marking-experiment.toml	30:898 (91%) 30:898 (91%)	view
605	x 2	jetstream jetstream	bug-1722551-pref-full-js-parsing-expe... bug-1780829-pref-impact-of-concurrent...	28:821 (96%) 27:820 (96%)	view
534	x 2	jetstream jetstream	bug-1722112-pref-fission-process-coun... bug-1727420-pref-fission-beta-93-proc...	11:699 (98%) 11:699 (98%)	view
529	x 2	jetstream jetstream	bug-1698297-pref-fission-m7-beta-expe... bug-1706428-pref-fission-m7-beta-expe...	82:763 (87%) 83:764 (87%)	view
469	x 2	jetstream jetstream	bug-1724054-pref-fission-beta-92-expe... bug-1725055-pref-fission-release-92-e...	131:747 (79%) 131:748 (79%)	view
453	x 2	jetstream jetstream	bug-1722551-pref-full-js-parsing-expe... bug-1727420-pref-fission-beta-93-proc...	225:821 (72%) 104:699 (83%)	view
453	x 2	jetstream jetstream	bug-1722112-pref-fission-process-coun... bug-1780829-pref-impact-of-concurrent...	104:699 (83%) 224:820 (72%)	view
453	x 2	jetstream jetstream	bug-1722112-pref-fission-process-coun... bug-1722551-pref-full-js-parsing-expe...	104:699 (83%) 225:821 (72%)	view
453	x 2	jetstream jetstream	bug-1727420-pref-fission-beta-93-proc... bug-1780829-pref-impact-of-concurrent...	104:699 (83%) 224:820 (72%)	view
420	x 2	jetstream jetstream	bug-1719576-pref-fission-beta-91-expe... bug-1724054-pref-fission-beta-92-expe...	136:688 (65%) 131:683 (71%)	view
420	x 2	jetstream jetstream	bug-1719576-pref-fission-beta-91-expe... bug-1725055-pref-fission-release-92-e...	136:688 (65%) 131:683 (71%)	view
365	x 2	jetstream jetstream	sponsored-suggestion-placement-phase-... sponsored-suggestion-placement.toml	39:492 (65%) 6:459 (61%)	view
322	x 2	jetstream jetstream	impact-of-race-cache-with-network-fea... speculative-connect-sockets.toml	29:442 (93%) 29:442 (93%)	view
205	x 2	jetstream jetstream	bug-1698297-pref-fission-m7-beta-expe... bug-1712979-pref-fission-beta-90-expe...	510:763 (33%) 556:809 (31%)	view
205	x 2	jetstream jetstream	bug-1706428-pref-fission-m7-beta-expe... bug-1712979-pref-fission-beta-90-expe...	511:764 (33%) 556:809 (31%)	view
186	x 2	jetstream jetstream	bug-1712979-pref-fission-beta-90-expe... bug-1719576-pref-fission-beta-91-expe...	376:619 (28%) 376:619 (29%)	view
186	x 2	jetstream jetstream	bug-1712979-pref-fission-beta-90-expe... bug-1725055-pref-fission-release-92-e...	376:619 (28%) 371:614 (31%)	view
186	x 2	jetstream jetstream	bug-1712979-pref-fission-beta-90-expe... bug-1724054-pref-fission-beta-92-expe...	376:619 (28%) 371:614 (31%)	view
171	x 2	jetstream jetstream	bug-1712979-pref-fission-beta-90-expe... bug-1719576-pref-fission-beta-91-expe...	123:351 (26%) 123:351 (26%)	view
161	x 2	jetstream jetstream	android-top-of-suggest-placement-re-r... enhanced-cross-platform-suggest-andro...	1:200 (100%) 1:200 (100%)	view
158	x 2	jetstream jetstream	bug-1712979-pref-fission-beta-90-expe... bug-1724054-pref-fission-beta-92-expe...	136:351 (24%) 131:346 (26%)	view
158	x 2	jetstream jetstream	bug-1712979-pref-fission-beta-90-expe... bug-1725055-pref-fission-release-92-e...	136:351 (24%) 131:346 (26%)	view
148	x 2	jetstream jetstream	mr2022-backgroundtaskmessage-notifica... mr2022-backgroundtaskmessage-notifica...	34:192 (75%) 37:195 (74%)	view
147	x 2	jetstream jetstream	backgroundtaskmessage-notification-re... backgroundtaskmessage-notification-re...	1:160 (100%) 1:160 (100%)	view
147	x 2	jetstream jetstream	backgroundtaskmessage-notification-re... backgroundtaskmessage-notification-re...	1:160 (100%) 1:160 (100%)	view
147	x 2	jetstream jetstream	backgroundtaskmessage-notification-re... backgroundtaskmessage-notification-re...	1:160 (100%) 1:160 (100%)	view
143	x 2	jetstream jetstream	bug-1722112-pref-fission-process-coun... bug-1811065-pref-impact-of-parallel-m...	319:511 (26%) 210:403 (31%)	view
143	x 2	jetstream jetstream	bug-1727420-pref-fission-beta-93-proc... bug-1811065-pref-impact-of-parallel-m...	319:511 (26%) 210:403 (31%)	view
143	x 2	jetstream jetstream	bug-1780829-pref-impact-of-concurrent... bug-1811065-pref-impact-of-parallel-m...	440:632 (22%) 210:403 (31%)	view
143	x 2	jetstream jetstream	bug-1722551-pref-full-js-parsing-expe... bug-1811065-pref-impact-of-parallel-m...	441:633 (22%) 210:403 (31%)	view
128	x 2	jetstream jetstream/outcomes/firefox_desktop	desktop-release-show-relay-to-all-bro... relay.toml	10:152 (85%) 6:148 (92%)	view
120	x 2	jetstream jetstream	cbb-row-hold-back-with-promo-v2.toml cbb-us-hold-back-with-promo-v2.toml	1:137 (100%) 1:137 (100%)	view
120	x 2	jetstream jetstream	cbb-eu-hold-back-with-promo-v2.toml cbb-us-hold-back-with-promo-v2.toml	1:137 (100%) 1:137 (100%)	view
120	x 2	jetstream jetstream	cbb-eu-hold-back-with-promo-v2.toml cbb-row-hold-back-with-promo-v2.toml	1:137 (100%) 1:137 (100%)	view
112	x 2	jetstream jetstream	bug-1696829-pref-new-tab-default-cont... bug-1696831-pref-activity-stream-new-...	1:160 (100%) 1:160 (100%)	view
108	x 2	jetstream jetstream	bug-1695026-pref-new-tab-modernized-u... bug-1695815-pref-new-tab-modernized-u...	8:160 (96%) 8:160 (96%)	view
108	x 2	jetstream jetstream	bug-1690385-pref-activity-stream-new-... bug-1692000-pref-activity-stream-new-...	9:165 (95%) 10:166 (95%)	view
108	x 2	jetstream jetstream	bug-1695026-pref-new-tab-modernized-u... bug-1695794-pref-new-tab-modernized-u...	8:160 (96%) 8:160 (96%)	view
108	x 2	jetstream jetstream	bug-1695794-pref-new-tab-modernized-u... bug-1695815-pref-new-tab-modernized-u...	8:160 (96%) 8:160 (96%)	view
107	x 2	jetstream jetstream	bug-1695794-pref-new-tab-modernized-u... bug-1696829-pref-new-tab-default-cont...	10:160 (95%) 10:160 (95%)	view
107	x 2	jetstream jetstream	bug-1695815-pref-new-tab-modernized-u... bug-1696829-pref-new-tab-default-cont...	10:160 (95%) 10:160 (95%)	view
107	x 2	jetstream jetstream	bug-1695026-pref-new-tab-modernized-u... bug-1696829-pref-new-tab-default-cont...	10:160 (95%) 10:160 (95%)	view
107	x 2	jetstream jetstream	bug-1695815-pref-new-tab-modernized-u... bug-1696831-pref-activity-stream-new-...	10:160 (95%) 10:160 (95%)	view
107	x 2	jetstream jetstream	bug-1695026-pref-new-tab-modernized-u... bug-1696831-pref-activity-stream-new-...	10:160 (95%) 10:160 (95%)	view
107	x 2	jetstream jetstream	bug-1695794-pref-new-tab-modernized-u... bug-1696831-pref-activity-stream-new-...	10:160 (95%) 10:160 (95%)	view
101	x 2	jetstream jetstream	cbhqps-german-hold-back-with-promo.toml cbhqps-german-roll-out.toml	1:119 (100%) 1:119 (100%)	view
98	x 2	jetstream jetstream	bug-1811065-pref-impact-of-parallel-m... parallel-marking-experiment.toml	478:598 (21%) 819:940 (13%)	view
94	x 2	definitions definitions	fenix.toml firefox_ios.toml	274:374 (13%) 132:232 (15%)	view
93	x 2	jetstream jetstream	macos-background-tab-power-savings-re... macos-background-tab-power-savings.toml	1:125 (94%) 1:125 (94%)	view
92	x 2	jetstream jetstream	sponsored-suggestion-placement-phase-... sponsored-suggestion-placement.toml	564:655 (16%) 601:692 (15%)	view