gitlab-org / libgit2 - 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.

Learn more...

Duplication Overall

2% duplication:

73,066 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
2,083 duplicated lines

237 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
include (2%) --> src (<1%)	185	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 237 duplicates...

Size	#	Folders	Files	Lines	Code
81	x 2	src/hash/sha1/sha1dc src/hash/sha1/sha1dc	sha1.c sha1.c	203:287 (8%) 296:380 (8%)	view
16	x 2	cmake/Modules cmake/Modules	FindGSSAPI.cmake FindGSSAPI.cmake	145:162 (5%) 247:264 (5%)	view
15	x 2	src src	config_file.c config_mem.c	754:777 (2%) 46:69 (10%)	view
13	x 2	src src	remote.c remote.c	923:939 (<1%) 2496:2512 (<1%)	view
11	x 2	cmake/Modules cmake/Modules	FindGSSAPI.cmake FindGSSAPI.cmake	137:148 (3%) 199:210 (3%)	view
11	x 2	src src	offmap.c oidmap.c	86:100 (23%) 92:106 (21%)	view
11	x 2	src/transports src/transports	credential.c credential.c	183:194 (3%) 199:211 (3%)	view
11	x 2	src src	refdb_fs.c refdb_fs.c	608:623 (<1%) 651:666 (<1%)	view
11	x 2	src src	notes.c notes.c	217:228 (2%) 235:246 (2%)	view
11	x 2	cmake/Modules cmake/Modules	FindGSSAPI.cmake FindGSSAPI.cmake	121:132 (3%) 183:194 (3%)	view
10	x 2	src src	index.c index.c	69:78 (<1%) 83:92 (<1%)	view
10	x 2	src/transports src/transports	smart_protocol.c smart_protocol.c	385:398 (1%) 405:418 (1%)	view
10	x 2	src src	checkout.c checkout.c	1877:1891 (<1%) 1915:1929 (<1%)	view
10	x 2	src src	diff_tform.c diff_tform.c	676:688 (1%) 746:759 (1%)	view
10	x 2	cmake/Modules cmake/Modules	FindPCRE.cmake FindPCRE2.cmake	1:11 (31%) 1:11 (32%)	view
10	x 2	src src	diff_generate.c diff_generate.c	1320:1331 (<1%) 1457:1468 (<1%)	view
10	x 2	src src	odb.c odb.c	711:723 (1%) 733:745 (1%)	view
9	x 2	src src	rebase.c rebase.c	813:822 (<1%) 870:879 (<1%)	view
9	x 2	include/git2 src	commit.h commit.c	360:368 (10%) 218:226 (1%)	view
9	x 2	src src	diff_generate.c diff_generate.c	1321:1331 (<1%) 1421:1431 (<1%)	view
9	x 2	include/git2/sys src	commit.h commit.c	35:43 (36%) 258:266 (1%)	view
9	x 2	include/git2 src	commit.h commit.c	386:394 (10%) 296:304 (1%)	view
9	x 2	src src	stash.c stash.c	610:620 (1%) 1056:1067 (1%)	view
9	x 2	src src	diff_generate.c diff_generate.c	1421:1431 (<1%) 1458:1468 (<1%)	view
9	x 2	src src	diff_generate.c diff_generate.c	1379:1389 (<1%) 1530:1540 (<1%)	view
9	x 2	include/git2 src	commit.h commit.c	360:368 (10%) 296:304 (1%)	view
9	x 2	include/git2/sys src	commit.h commit.c	67:75 (36%) 123:131 (1%)	view
9	x 2	include/git2 src	commit.h commit.c	386:394 (10%) 218:226 (1%)	view
9	x 2	include/git2/sys src	commit.h commit.c	67:75 (36%) 186:194 (1%)	view
9	x 2	src/xdiff src/xdiff	xmerge.c xmerge.c	564:573 (1%) 639:648 (1%)	view
9	x 2	src src	commit.c commit.c	123:131 (1%) 186:194 (1%)	view
9	x 2	src src	commit.c commit.c	218:226 (1%) 296:304 (1%)	view
9	x 2	src src	patch_generate.c patch_generate.c	590:599 (1%) 626:635 (1%)	view
9	x 2	src src	merge.c merge.c	1928:1938 (<1%) 1973:1983 (<1%)	view
9	x 2	include/git2 include/git2	commit.h commit.h	360:368 (10%) 386:394 (10%)	view
9	x 2	src src	index.c index.c	164:174 (<1%) 190:200 (<1%)	view
9	x 2	src src	refs.c refs.c	784:797 (1%) 811:824 (1%)	view
9	x 2	src src	util.c util.c	603:616 (1%) 634:647 (1%)	view
8	x 2	include/git2 src	notes.h notes.c	210:217 (11%) 496:503 (1%)	view
8	x 2	include/git2/sys src	commit.h commit.c	35:42 (32%) 123:130 (1%)	view
8	x 2	src src	config.c config.c	1182:1192 (<1%) 1202:1213 (<1%)	view
8	x 2	include/git2/sys include/git2/sys	commit.h commit.h	35:42 (32%) 67:74 (32%)	view
8	x 2	src/transports src/transports	git.c ssh.c	286:297 (3%) 731:742 (1%)	view
8	x 2	src/hash/sha1 src/hash/sha1	collisiondetect.c common_crypto.c	10:27 (40%) 12:29 (34%)	view
8	x 2	src/transports src/transports	git.c ssh.c	234:245 (3%) 704:715 (1%)	view
8	x 2	src src	diff_generate.c diff_generate.c	1381:1389 (<1%) 1423:1431 (<1%)	view
8	x 2	src src	checkout.c checkout.c	482:491 (<1%) 585:594 (<1%)	view
8	x 2	src src	patch_generate.c patch_generate.c	589:597 (1%) 663:671 (1%)	view
8	x 2	src src	diff_generate.c diff_generate.c	1323:1331 (<1%) 1381:1389 (<1%)	view
8	x 2	src src	diff_generate.c diff_generate.c	1323:1331 (<1%) 1532:1540 (<1%)	view

Duplicated Units

The list of top 2 duplicated units.

See data for all 2 unit duplicates...

Size	#	Folders	Files	Lines	Code
12	x 2	src src	offmap.c oidmap.c	84:101 90:107	view
6	x 3	fuzzers fuzzers fuzzers	objects_fuzzer.c config_file_fuzzer.c patch_parse_fuzzer.c	15:24 23:32 16:25	view