twitter / ios-twitter-image-pipeline

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

20% duplication:

78,509 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
15,881 duplicated lines

1,862 duplicates

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

Duplication per Extension

Duplication per Component (primary)

Longest Duplicates

The list of 50 longest duplicates.

See data for all 1,862 duplicates...

Size	#	Folders	Files	Lines	Code
212	x 2	Extended/WebP.framework/Headers Extended/libwebp/src/webp	encode.h encode.h	20:538 (100%) 20:538 (100%)	view
195	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/utils	in Makefile.in Makefile.in	416:611 (12%) 179:374 (28%)	view
178	x 2	Extended/WebP.framework/Headers Extended/libwebp/src/webp	decode.h decode.h	20:497 (100%) 20:497 (100%)	view
178	x 2	Extended/WebPDemux.framework/Headers Extended/libwebp/src/webp	decode.h decode.h	20:497 (100%) 20:497 (100%)	view
178	x 2	Extended/WebP.framework/Headers Extended/WebPDemux.framework/Headers	decode.h decode.h	20:497 (100%) 20:497 (100%)	view
162	x 2	Extended/libwebp/src/dec Extended/libwebp/src/dsp	in Makefile.in Makefile.in	199:360 (22%) 450:611 (9%)	view
162	x 2	Extended/libwebp/src/dec Extended/libwebp/src/enc	in Makefile.in Makefile.in	199:360 (22%) 228:389 (18%)	view
162	x 2	Extended/libwebp/src/dec Extended/libwebp/src/utils	in Makefile.in Makefile.in	199:360 (22%) 213:374 (23%)	view
162	x 2	Extended/libwebp/src/enc Extended/libwebp/src/utils	in Makefile.in Makefile.in	228:389 (18%) 213:374 (23%)	view
162	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/enc	in Makefile.in Makefile.in	450:611 (9%) 228:389 (18%)	view
143	x 2	Extended/libwebp/src/demux Extended/libwebp/src/mux	in Makefile.in Makefile.in	213:355 (21%) 214:356 (21%)	view
142	x 2	Extended/libwebp/src/demux Extended/libwebp/src/enc	in Makefile.in Makefile.in	214:355 (21%) 248:389 (16%)	view
142	x 2	Extended/libwebp/src/dec Extended/libwebp/src/demux	in Makefile.in Makefile.in	219:360 (19%) 214:355 (21%)	view
142	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/mux	in Makefile.in Makefile.in	470:611 (8%) 215:356 (20%)	view
142	x 2	Extended/libwebp/src/demux Extended/libwebp/src/utils	in Makefile.in Makefile.in	214:355 (21%) 233:374 (20%)	view
142	x 2	Extended/libwebp/src/demux Extended/libwebp/src/dsp	in Makefile.in Makefile.in	214:355 (21%) 470:611 (8%)	view
142	x 2	Extended/libwebp/src/enc Extended/libwebp/src/mux	in Makefile.in Makefile.in	248:389 (16%) 215:356 (20%)	view
142	x 2	Extended/libwebp/src/dec Extended/libwebp/src/mux	in Makefile.in Makefile.in	219:360 (19%) 215:356 (20%)	view
142	x 2	Extended/libwebp/src/mux Extended/libwebp/src/utils	in Makefile.in Makefile.in	215:356 (20%) 233:374 (20%)	view
141	x 2	Extended/libwebp Extended/libwebp/src	in Makefile.in Makefile.in	209:349 (18%) 269:409 (17%)	view
138	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/utils	in Makefile.in Makefile.in	1399:1553 (8%) 492:646 (20%)	view
137	x 2	Extended/libwebp Extended/libwebp/src/utils	in Makefile.in Makefile.in	213:349 (17%) 238:374 (20%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src/dsp	in Makefile.in Makefile.in	205:341 (20%) 475:611 (8%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src/mux	in Makefile.in Makefile.in	219:355 (19%) 220:356 (20%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src/demux	in Makefile.in Makefile.in	219:355 (19%) 219:355 (20%)	view
137	x 2	Extended/libwebp/src Extended/libwebp/src/dec	in Makefile.in Makefile.in	273:409 (17%) 224:360 (19%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src/enc	in Makefile.in Makefile.in	219:355 (19%) 253:389 (15%)	view
137	x 2	Extended/libwebp/src Extended/libwebp/src/utils	in Makefile.in Makefile.in	273:409 (17%) 238:374 (20%)	view
137	x 2	Extended/libwebp Extended/libwebp/src/dec	in Makefile.in Makefile.in	213:349 (17%) 224:360 (19%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src/utils	in Makefile.in Makefile.in	205:341 (20%) 238:374 (20%)	view
137	x 2	Extended/libwebp/src Extended/libwebp/src/mux	in Makefile.in Makefile.in	273:409 (17%) 220:356 (20%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src/dsp	in Makefile.in Makefile.in	219:355 (19%) 475:611 (8%)	view
137	x 2	Extended/libwebp Extended/libwebp/src/mux	in Makefile.in Makefile.in	213:349 (17%) 220:356 (20%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src	in Makefile.in Makefile.in	219:355 (19%) 273:409 (17%)	view
137	x 2	Extended/libwebp Extended/libwebp/imageio	in Makefile.in Makefile.in	213:349 (17%) 205:341 (20%)	view
137	x 2	Extended/libwebp/src Extended/libwebp/src/demux	in Makefile.in Makefile.in	273:409 (17%) 219:355 (20%)	view
137	x 2	Extended/libwebp Extended/libwebp/src/dsp	in Makefile.in Makefile.in	213:349 (17%) 475:611 (8%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src/enc	in Makefile.in Makefile.in	205:341 (20%) 253:389 (15%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src	in Makefile.in Makefile.in	205:341 (20%) 273:409 (17%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src/dec	in Makefile.in Makefile.in	219:355 (19%) 224:360 (19%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src/dec	in Makefile.in Makefile.in	205:341 (20%) 224:360 (19%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src/demux	in Makefile.in Makefile.in	205:341 (20%) 219:355 (20%)	view
137	x 2	Extended/libwebp Extended/libwebp/src/enc	in Makefile.in Makefile.in	213:349 (17%) 253:389 (15%)	view
137	x 2	Extended/libwebp/imageio Extended/libwebp/src/mux	in Makefile.in Makefile.in	205:341 (20%) 220:356 (20%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/src/utils	in Makefile.in Makefile.in	219:355 (19%) 238:374 (20%)	view
137	x 2	Extended/libwebp/src Extended/libwebp/src/dsp	in Makefile.in Makefile.in	273:409 (17%) 475:611 (8%)	view
137	x 2	Extended/libwebp Extended/libwebp/src/demux	in Makefile.in Makefile.in	213:349 (17%) 219:355 (20%)	view
137	x 2	Extended/libwebp/src Extended/libwebp/src/enc	in Makefile.in Makefile.in	273:409 (17%) 253:389 (15%)	view
137	x 2	Extended/libwebp Extended/libwebp/extras	in Makefile.in Makefile.in	213:349 (17%) 219:355 (19%)	view
137	x 2	Extended/libwebp/extras Extended/libwebp/imageio	in Makefile.in Makefile.in	219:355 (19%) 205:341 (20%)	view

Duplicated Units

The list of top 25 duplicated units.

See data for all 25 unit duplicates...

Size	#	Folders	Files	Lines	Code
47	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	upsampling_sse41.c upsampling_sse2.c	119:167 117:165	view
46	x 2	Extended/libwebp/swig Extended/libwebp/swig	libwebp_java_wrap.c libwebp_python_wrap.c	873:922 3387:3436	view
28	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	yuv_sse41.c yuv_sse2.c	29:66 29:66	view
18	x 3	Extended/libwebp/src/dsp Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_sse2.c enc_msa.c enc.c	853:874 393:412 479:500	view
18	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_msa.c enc.c	336:355 420:440	view
18	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_msa.c enc.c	357:376 442:462	view
17	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	yuv_sse41.c yuv_sse2.c	384:403 538:557	view
16	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_neon.c dec_neon.c	96:120 1017:1041	view
16	x 2	Extended/libwebp/swig Extended/libwebp/swig	libwebp_java_wrap.c libwebp_python_wrap.c	925:945 3439:3459	view
15	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	lossless_enc_mips32.c lossless_enc.c	244:263 457:476	view
12	x 3	Extended/libwebp/src/dsp Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_sse2.c enc_msa.c enc.c	838:851 378:391 464:477	view
11	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	upsampling_sse41.c upsampling_sse2.c	205:217 218:230	view
11	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	yuv_sse41.c yuv_sse2.c	369:382 523:536	view
10	x 2	Extended/libwebp/imageio Extended/libwebp/imageio	tiffdec.c jpegdec.c	267:278 346:357	view
10	x 3	Extended/libwebp/src/dsp Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_msa.c enc_mips_dsp_r2.c enc.c	434:445 1046:1057 520:531	view
10	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	lossless_enc.c lossless.c	731:742 55:66	view
9	x 2	Extended/WebPDemux.framework/Headers Extended/libwebp/src/webp	mux_types.h mux_types.h	82:92 82:92	view
9	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_msa.c enc.c	275:285 364:374	view
8	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	enc_neon.c dec_neon.c	46:58 385:397	view
7	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	lossless_enc.c lossless.c	748:756 72:80	view
6	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	lossless_enc_sse2.c lossless_sse2.c	437:445 83:91	view
6	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	dec_mips_dsp_r2.c dec_mips32.c	452:459 161:168	view
6	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	dec_mips_dsp_r2.c dec_mips32.c	461:468 170:177	view
6	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	yuv_sse41.c yuv_sse2.c	495:502 649:656	view
6	x 2	Extended/libwebp/src/dsp Extended/libwebp/src/dsp	lossless_enc.c lossless.c	774:781 98:105	view