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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

10% duplication:

63,765 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
6,383 duplicated lines

1,525 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
heft-plugins/heft-webpack4-plugin (86%) --> heft-plugins/heft-webpack5-plugin (78%)	462	4 file pairs	details...
apps/api-documenter (2%) --> apps/api-extractor (1%)	150	2 file pairs	details...
apps/rush-lib (<1%) --> rush-plugins/rush-amazon-s3-build-cache-plugin (17%)	136	1 file pair	details...
apps/rush-lib (<1%) --> common/scripts (13%)	102	2 file pairs	details...
rush-plugins/rush-amazon-s3-build-cache-plugin (6%) --> rush-plugins/rush-azure-storage-build-cache-plugin (8%)	52	1 file pair	details...
common/autoinstallers (10%) --> common/config (<1%)	50	1 file pair	details...

Open 3D force graph...

Show more details on duplication between components...

Longest Duplicates

The list of 20 longest duplicates.

See data for all 1,525 duplicates...

Size	#	Folders	Files	Lines	Code
72	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	5079:5150 (<1%) 5172:5243 (<1%)	view
68	x 2	apps/rush-lib/src/utilities rush-plugins/rush-amazon-s3-build-cache-plugin/src	WebClient.ts WebClient.ts	15:136 (100%) 18:139 (100%)	view
65	x 2	heft-plugins/heft-webpack4-plugin/src heft-plugins/heft-webpack5-plugin/src	WebpackPlugin.ts WebpackPlugin.ts	9:96 (34%) 12:99 (29%)	view
60	x 2	heft-plugins/heft-webpack4-plugin/src heft-plugins/heft-webpack5-plugin/src	WebpackConfigurationLoader.ts WebpackConfigurationLoader.ts	14:91 (100%) 14:91 (100%)	view
42	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	5546:5587 (<1%) 5611:5652 (<1%)	view
41	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	5747:5787 (<1%) 5808:5848 (<1%)	view
39	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	18092:18130 (<1%) 18140:18178 (<1%)	view
34	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	18280:18313 (<1%) 18317:18350 (<1%)	view
33	x 2	heft-plugins/heft-webpack4-plugin/src heft-plugins/heft-webpack5-plugin/src	WebpackPlugin.ts WebpackPlugin.ts	108:148 (17%) 113:153 (15%)	view
31	x 2	apps/api-documenter/src/utils apps/api-extractor/src/generators	IndentedWriter.ts IndentedWriter.ts	122:196 (36%) 157:231 (31%)	view
27	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	1253:1279 (<1%) 1282:1308 (<1%)	view
27	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	1224:1250 (<1%) 1282:1308 (<1%)	view
27	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	1224:1250 (<1%) 1253:1279 (<1%)	view
26	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	810:835 (<1%) 838:863 (<1%)	view
25	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	5080:5104 (<1%) 5451:5475 (<1%)	view
25	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	5173:5197 (<1%) 5451:5475 (<1%)	view
21	x 2	apps/api-extractor/src/generators apps/api-extractor/src/generators	ApiReportGenerator.ts DtsRollupGenerator.ts	167:197 (7%) 186:216 (8%)	view
21	x 2	apps/api-documenter/src/utils apps/api-extractor/src/generators	IndentedWriter.ts IndentedWriter.ts	56:115 (24%) 93:154 (21%)	view
21	x 2	common/scripts common/scripts	install-run-rush.js install-run.js	1:23 (35%) 1:23 (6%)	view
19	x 2	common/config/rush common/config/rush	pnpm-lock.yaml pnpm-lock.yaml	17109:17127 (<1%) 17135:17153 (<1%)	view

Duplicated Units

The list of top 20 duplicated units.

See data for all 22 unit duplicates...

Size	#	Folders	Files	Lines	Code
45	x 2	apps/rush-lib/src/utilities rush-plugins/rush-amazon-s3-build-cache-plugin/src	WebClient.ts WebClient.ts	81:137 84:140	view
39	x 2	heft-plugins/heft-webpack4-plugin/src heft-plugins/heft-webpack5-plugin/src	WebpackConfigurationLoader.ts WebpackConfigurationLoader.ts	31:77 31:77	view
19	x 2	apps/api-documenter/src/utils apps/api-extractor/src/generators	IndentedWriter.ts IndentedWriter.ts	157:180 192:215	view
15	x 2	heft-plugins/heft-webpack4-plugin/src heft-plugins/heft-webpack5-plugin/src	WebpackPlugin.ts WebpackPlugin.ts	46:62 49:65	view
14	x 2	heft-plugins/heft-webpack4-plugin/src heft-plugins/heft-webpack5-plugin/src	WebpackConfigurationLoader.ts WebpackConfigurationLoader.ts	79:93 79:93	view
12	x 2	apps/api-documenter/src/cli apps/api-extractor/src/enhancers	BaseAction.ts DocCommentEnhancer.ts	120:134 233:247	view
10	x 2	apps/api-documenter/src/utils apps/api-extractor/src/generators	IndentedWriter.ts IndentedWriter.ts	140:150 175:185	view
10	x 4	apps/rush-lib/src/cli/actions apps/rush-lib/src/cli/actions apps/rush-lib/src/cli/actions apps/rush-lib/src/cli/actions	InitAutoinstallerAction.ts InitDeployAction.ts PublishAction.ts UnlinkAction.ts	16:26 21:31 58:68 11:21	view
10	x 2	heft-plugins/heft-jest-plugin/src heft-plugins/heft-jest-plugin/src	JestUtils.ts JestUtils.ts	67:77 94:104	view
10	x 2	rush-plugins/rush-amazon-s3-build-cache-plugin/src rush-plugins/rush-azure-...-build-cache-plugin/src	AmazonS3BuildCacheProvider.ts AzureStorageBuildCacheProvider.ts	137:147 233:243	view
10	x 2	rush-plugins/rush-amazon-s3-build-cache-plugin/src rush-plugins/rush-azure-...-build-cache-plugin/src	AmazonS3BuildCacheProvider.ts AzureStorageBuildCacheProvider.ts	158:168 260:270	view
9	x 2	apps/rush-lib/src/cli/actions apps/rush-lib/src/cli/actions	PublishAction.ts PublishAction.ts	538:548 550:560	view
8	x 4	apps/api-documenter/src/cli apps/api-documenter/src/cli apps/rundown/src/cli apps/rundown/src/cli	GenerateAction.ts MarkdownAction.ts InspectAction.ts SnapshotAction.ts	15:23 9:17 12:20 9:17	view
8	x 2	apps/rush-lib/src/cli/actions apps/rush-lib/src/cli/actions	InitAutoinstallerAction.ts UpdateAutoinstallerAction.ts	28:36 22:30	view
7	x 2	apps/rush-lib/src/cli/actions apps/rush-lib/src/cli/actions	UpdateAutoinstallerAction.ts VersionAction.ts	13:20 35:42	view
7	x 2	libraries/ts-command-line/src/parameters libraries/ts-command-line/src/parameters	CommandLineChoiceListParameter.ts CommandLineStringListParameter.ts	94:101 71:78	view
6	x 2	apps/api-documenter/src/documenters apps/api-documenter/src/documenters	OfficeYamlDocumenter.ts YamlDocumenter.ts	66:73 123:129	view
6	x 2	apps/api-extractor/src/cli apps/rush-lib/src/cli	ApiExtractorCommandLine.ts RushCommandLineParser.ts	29:36 162:168	view
6	x 2	apps/api-extractor/src/cli repo-scripts/repo-toolbox/src	RunAction.ts RecordVersionsAction.ts	27:33 12:18	view
6	x 2	apps/heft/src/utilities heft-plugins/heft-sass-plugin/src/utilities	HeftAsync.ts Async.ts	7:13 7:13	view