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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

13% duplication:

10,586 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
1,470 duplicated lines

202 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
app (1%) --> lib (<1%)	78	30 file pairs	details...

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Show more details on duplication between components...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 202 duplicates...

Size	#	Folders	Files	Lines	Code
296	x 2	lib/primer/classify lib/tasks	utilities.yml custom_utilities.yml	1482:1777 (16%) 3:298 (99%)	view
79	x 2	lib/rubocop/cop/primer lib/rubocop/cop/primer	deprecated_arguments.rb deprecated_arguments.rb	61:139 (29%) 187:265 (29%)	view
13	x 2	static static	arguments.yml arguments.yml	85:97 (1%) 133:145 (1%)	view
13	x 2	app/components/primer/alpha app/components/primer/alpha	underline_nav.html.erb underline_panels.html.erb	1:15 (100%) 2:14 (72%)	view
11	x 2	stories/primer stories/primer	button_component_stories.rb button_component_stories.rb	23:34 (17%) 57:68 (17%)	view
10	x 2	app/components/primer/dropdown app/components/primer	menu.rb dropdown_menu_component.rb	36:46 (14%) 45:56 (40%)	view
10	x 2	stories/primer stories/primer	button_component_stories.rb button_component_stories.rb	40:50 (15%) 57:67 (15%)	view
10	x 2	stories/primer stories/primer	button_component_stories.rb button_component_stories.rb	23:33 (15%) 40:50 (15%)	view
10	x 2	static static	arguments.yml arguments.yml	56:65 (<1%) 100:109 (<1%)	view
9	x 2	app/components/primer/alpha app/components/primer/alpha	tab_nav.html.erb tab_panels.html.erb	1:11 (100%) 2:10 (64%)	view
9	x 2	stories/primer stories/primer	button_component_stories.rb button_component_stories.rb	7:15 (14%) 57:65 (14%)	view
9	x 2	stories/primer stories/primer	button_component_stories.rb button_component_stories.rb	7:15 (14%) 40:48 (14%)	view
9	x 2	stories/primer stories/primer	button_component_stories.rb button_component_stories.rb	7:15 (14%) 23:31 (14%)	view
9	x 2	stories/primer/dropdown stories/primer/dropdown	menu_stories.rb menu_stories.rb	9:18 (27%) 25:34 (27%)	view
9	x 2	app/components/primer/alpha app/components/primer/beta/auto_complete	layout.rb item.rb	267:276 (8%) 35:44 (36%)	view
8	x 2	lib/primer/view_componen...inters/argument_mappers lib/primer/view_componen...inters/argument_mappers	flash.rb label.rb	24:31 (30%) 41:48 (20%)	view
8	x 2	static static	arguments.yml arguments.yml	326:333 (<1%) 361:368 (<1%)	view
8	x 2	lib/primer/view_componen...inters/argument_mappers lib/primer/view_componen...inters/argument_mappers	button.rb flash.rb	64:71 (14%) 24:31 (30%)	view
8	x 2	static static	arguments.yml arguments.yml	110:117 (<1%) 130:137 (<1%)	view
8	x 2	stories/primer/navigation stories/primer/navigation	tab_component_stories.rb tab_component_stories.rb	22:30 (12%) 50:58 (12%)	view
8	x 2	static static	arguments.yml arguments.yml	76:83 (<1%) 124:131 (<1%)	view
8	x 2	app/components/primer/alpha app/components/primer/alpha	underline_nav.rb underline_panels.rb	129:138 (20%) 77:86 (19%)	view
8	x 2	stories/primer/beta/truncate stories/primer	truncate_text_stories.rb truncate_stories.rb	11:19 (57%) 9:17 (61%)	view
8	x 2	stories/primer/beta stories/primer/beta	blankslate_stories.rb blankslate_stories.rb	9:17 (9%) 88:96 (9%)	view
8	x 2	app/components/primer/alpha app/components/primer/alpha	underline_nav.rb underline_panels.rb	36:49 (20%) 24:37 (19%)	view
8	x 2	static static	arguments.yml arguments.yml	149:156 (<1%) 334:341 (<1%)	view
8	x 2	static static	arguments.yml arguments.yml	24:31 (<1%) 395:402 (<1%)	view
8	x 2	lib/primer/view_componen...inters/argument_mappers lib/primer/view_componen...inters/argument_mappers	button.rb label.rb	64:71 (14%) 41:48 (20%)	view
8	x 2	static static	arguments.yml arguments.yml	66:73 (<1%) 114:121 (<1%)	view
7	x 2	stories/primer stories/primer	markdown_stories.rb markdown_stories.rb	156:162 (3%) 192:198 (3%)	view
7	x 2	app/components/primer app/components/primer	markdown.rb tooltip.rb	281:288 (38%) 84:91 (14%)	view
7	x 2	app/components/primer/alpha app/components/primer	layout.rb tooltip.rb	267:274 (6%) 84:91 (14%)	view
7	x 2	app/components/primer/alpha app/components/primer/alpha	tab_nav.rb tab_panels.rb	34:45 (20%) 31:42 (17%)	view
7	x 2	app/components/primer/beta/auto_complete app/components/primer	item.rb markdown.rb	35:42 (28%) 281:288 (38%)	view
7	x 2	app/components/primer app/components/primer	label_component.rb markdown.rb	69:76 (15%) 281:288 (38%)	view
7	x 2	stories/primer/beta stories/primer/beta	blankslate_stories.rb blankslate_stories.rb	49:56 (8%) 62:69 (8%)	view
7	x 2	app/components/primer app/components/primer	base_button.rb state_component.rb	36:43 (26%) 67:74 (14%)	view
7	x 2	app/components/primer app/components/primer	markdown.rb state_component.rb	281:288 (38%) 67:74 (14%)	view
7	x 2	stories/primer/beta stories/primer/beta	blankslate_stories.rb blankslate_stories.rb	49:56 (8%) 75:82 (8%)	view
7	x 2	app/components/primer/beta/auto_complete app/components/primer/beta	item.rb text.rb	36:43 (28%) 20:27 (46%)	view
7	x 2	app/components/primer/alpha app/components/primer	layout.rb markdown.rb	267:274 (6%) 281:288 (38%)	view
7	x 2	lib/yard lib/yard	renders_many_handler.rb renders_one_handler.rb	7:15 (50%) 7:15 (50%)	view
7	x 2	app/components/primer/beta/auto_complete app/components/primer	item.rb state_component.rb	35:42 (28%) 67:74 (14%)	view
7	x 2	app/components/primer app/components/primer/beta/auto_complete	base_button.rb item.rb	36:43 (26%) 35:42 (28%)	view
7	x 2	stories/primer/navigation stories/primer/navigation	tab_component_stories.rb tab_component_stories.rb	22:29 (11%) 36:43 (11%)	view
7	x 2	app/components/primer/beta/auto_complete app/components/primer	item.rb label_component.rb	35:42 (28%) 69:76 (15%)	view
7	x 2	app/components/primer app/components/primer	state_component.rb tooltip.rb	67:74 (14%) 84:91 (14%)	view
7	x 2	app/components/primer/alpha app/components/primer/beta	layout.rb text.rb	268:275 (6%) 20:27 (46%)	view
7	x 2	stories/primer/alpha stories/primer/alpha	tab_nav_stories.rb tab_panels_stories.rb	22:28 (30%) 25:31 (26%)	view
7	x 2	app/components/primer/alpha app/components/primer/beta	layout.rb truncate.rb	247:253 (6%) 104:110 (17%)	view