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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

12% duplication:

34,650 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
4,182 duplicated lines

334 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
blake2b (13%) --> blake2s (14%)	370	4 file pairs	details...
argon2 (6%) --> blake2b (2%)	76	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 334 duplicates...

Size	#	Folders	Files	Lines	Code
194	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	1209:1415 (14%) 1533:1739 (14%)	view
144	x 2	salsa20/salsa salsa20/salsa	salsa208.go salsa20_ref.go	31:198 (87%) 33:200 (78%)	view
97	x 2	blake2s blake2s	s blake2s_386.s blake2s_amd64.s	8:113 (24%) 8:113 (23%)	view
64	x 2	salsa20/salsa salsa20/salsa	hsalsa20.go salsa208.go	33:103 (55%) 31:101 (39%)	view
64	x 2	salsa20/salsa salsa20/salsa	hsalsa20.go salsa20_ref.go	33:103 (55%) 33:103 (34%)	view
54	x 2	salsa20/salsa salsa20/salsa	s salsa20_amd64.s salsa20_amd64.s	666:719 (6%) 728:781 (6%)	view
48	x 2	blake2b blake2s	blake2x.go blake2x.go	105:174 (50%) 105:175 (50%)	view
42	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	1372:1415 (3%) 1651:1694 (3%)	view
42	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	1327:1370 (3%) 1696:1739 (3%)	view
42	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	1327:1370 (3%) 1372:1415 (3%)	view
42	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	1161:1207 (3%) 1483:1529 (3%)	view
42	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	1651:1694 (3%) 1696:1739 (3%)	view
38	x 2	argon2 blake2b	s blamka_amd64.s blake2b_amd64.s	10:50 (17%) 26:66 (15%)	view
37	x 2	curve25519/internal/field/_asm curve25519/internal/field/_asm	fe_amd64_asm.go fe_amd64_asm.go	86:130 (18%) 192:236 (18%)	view
24	x 2	chacha20poly1305 chacha20poly1305	s chacha20poly1305_amd64.s chacha20poly1305_amd64.s	902:925 (1%) 2171:2194 (1%)	view
23	x 2	internal/poly1305 internal/poly1305	sum_amd64.go sum_ppc64le.go	11:47 (100%) 11:47 (100%)	view
23	x 2	chacha20poly1305 chacha20poly1305	s chacha20poly1305_amd64.s chacha20poly1305_amd64.s	1093:1117 (<1%) 2379:2403 (<1%)	view
21	x 2	blake2b blake2s	blake2b.go blake2s.go	208:236 (12%) 178:206 (14%)	view
20	x 2	chacha20poly1305 chacha20poly1305	s chacha20poly1305_amd64.s chacha20poly1305_amd64.s	880:899 (<1%) 2149:2168 (<1%)	view
20	x 2	chacha20poly1305 chacha20poly1305	s chacha20poly1305_amd64.s chacha20poly1305_amd64.s	1388:1407 (<1%) 2607:2626 (<1%)	view

Duplicated Units

The list of top 6 duplicated units.

See data for all 6 unit duplicates...

Size	#	Folders	Files	Lines	Code
48	x 2	blake2s blake2b	blake2x.go blake2x.go	113:171 113:170	view
20	x 2	blake2s blake2b	blake2x.go blake2x.go	50:72 50:72	view
20	x 2	internal/poly1305 internal/poly1305	sum_ppc64le.go sum_amd64.go	20:40 20:40	view
9	x 3	chacha20poly1305 nacl/secretbox nacl/sign	chacha20poly1305.go secretbox.go sign.go	89:98 62:71 81:90	view
7	x 2	ed25519/internal/edwards25519 ed25519/internal/edwards25519	edwards25519.go edwards25519.go	672:680 708:716	view
6	x 2	internal/poly1305 internal/poly1305	sum_ppc64le.go sum_amd64.go	42:48 42:48	view