golang / appengine
Duplication

Places in code with 6 or more lines that are exactly the same.

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
  • 79% duplication:
    • 43,311 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
    • 34,321 duplicated lines
  • 122 duplicates
system79% (34,321 lines)
Duplication per Extension
go79% (31,553 lines)
proto75% (2,768 lines)
Duplication per Component (primary)
v298% (17,152 lines)
internal63% (12,346 lines)
datastore99% (1,855 lines)
cmd97% (1,342 lines)
taskqueue100% (288 lines)
memcache100% (250 lines)
blobstore100% (229 lines)
aetest94% (224 lines)
delay86% (130 lines)
ROOT91% (111 lines)
urlfetch100% (101 lines)
runtime100% (72 lines)
user78% (71 lines)
module100% (54 lines)
mail100% (50 lines)
image100% (25 lines)
capability100% (11 lines)
log5% (10 lines)
channel0% (0 lines)
remote_api0% (0 lines)
search0% (0 lines)
xmpp0% (0 lines)
socket0% (0 lines)
file0% (0 lines)
cloudsql0% (0 lines)

Duplication Between Components (50+ lines)

G internal internal v2 v2 internal--v2 24675 datastore datastore datastore--v2 3710 cmd cmd cmd--v2 2684 taskqueue taskqueue taskqueue--v2 576 memcache memcache memcache--v2 500 blobstore blobstore blobstore--v2 458 aetest aetest aetest--v2 448 delay delay delay--v2 260 ROOT ROOT ROOT--v2 222 urlfetch urlfetch urlfetch--v2 202 runtime runtime runtime--v2 144 user user user--v2 142 module module module--v2 108 mail mail mail--v2 100 image image image--v2 50

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Longest Duplicates
The list of 20 longest duplicates.
See data for all 122 duplicates...
Size#FoldersFilesLinesCode
2715 x 2 internal/datastore
v2/internal/datastore
datastore_v3.pb.go
datastore_v3.pb.go
 11:4101 (91%)
11:4101 (91%)
 view
1970 x 2 internal/taskqueue
v2/internal/taskqueue
taskqueue_service.pb.go
taskqueue_service.pb.go
 12:2971 (91%)
12:2971 (91%)
 view
968 x 2 internal/memcache
v2/internal/memcache
memcache_service.pb.go
memcache_service.pb.go
 11:1469 (91%)
11:1469 (91%)
 view
856 x 2 internal/image
v2/internal/image
images_service.pb.go
images_service.pb.go
 11:1277 (90%)
11:1277 (90%)
 view
495 x 2 internal/modules
v2/internal/modules
modules_service.pb.go
modules_service.pb.go
 11:751 (94%)
11:751 (94%)
 view
459 x 2 cmd/aefix
v2/cmd/aefix
fix.go
fix.go
 19:718 (84%)
19:718 (83%)
 view
428 x 2 datastore
v2/datastore
query.go
query.go
 22:773 (100%)
22:773 (100%)
 view
404 x 2 internal/blobstore
v2/internal/blobstore
blobstore_service.pb.go
blobstore_service.pb.go
 11:613 (89%)
11:613 (89%)
 view
403 x 2 internal/datastore
v2/internal/datastore
proto
datastore_v3.proto
datastore_v3.proto
 1:551 (100%)
1:551 (100%)
 view
371 x 2 internal/app_identity
v2/internal/app_identity
app_identity_service.pb.go
app_identity_service.pb.go
 11:562 (89%)
11:562 (89%)
 view
357 x 2 cmd/aefix
v2/cmd/aefix
typecheck.go
typecheck.go
 53:672 (100%)
53:672 (100%)
 view
318 x 2 internal/user
v2/internal/user
user_service.pb.go
user_service.pb.go
 11:489 (89%)
11:489 (89%)
 view
317 x 2 internal/urlfetch
v2/internal/urlfetch
urlfetch_service.pb.go
urlfetch_service.pb.go
 11:472 (86%)
11:472 (86%)
 view
288 x 2 taskqueue
v2/taskqueue
taskqueue.go
taskqueue.go
 36:540 (100%)
36:540 (100%)
 view
283 x 2 internal/taskqueue
v2/internal/taskqueue
proto
taskqueue_service.proto
taskqueue_service.proto
 6:342 (98%)
6:342 (98%)
 view
273 x 2 datastore
v2/datastore
load.go
load.go
 18:428 (100%)
18:428 (100%)
 view
261 x 2 internal/datastore
v2/internal/datastore
datastore_v3.pb.go
datastore_v3.pb.go
 4105:4366 (8%)
4105:4366 (8%)
 view
250 x 2 memcache
v2/memcache
memcache.go
memcache.go
 46:525 (100%)
46:525 (100%)
 view
230 x 2 datastore
v2/datastore
save.go
save.go
 20:332 (100%)
20:332 (100%)
 view
225 x 2 datastore
v2/datastore
datastore.go
datastore.go
 20:406 (100%)
20:406 (100%)
 view
Duplicated Units
The list of top 20 duplicated units.
See data for all 290 unit duplicates...
Size#FoldersFilesLinesCode
274 x 2 cmd/aefix
v2/cmd/aefix
typecheck.go
typecheck.go
 229:587 
229:587 
 view
209 x 2 cmd/aefix
v2/cmd/aefix
fix.go
fix.go
 57:283 
57:283 
 view
97 x 2 datastore
v2/datastore
load.go
load.go
 176:280 
176:280 
 view
97 x 2 datastore
v2/datastore
prop.go
prop.go
 176:289 
176:289 
 view
92 x 2 cmd/aefix
v2/cmd/aefix
ae.go
ae.go
 47:172 
42:167 
 view
91 x 2 v2/blobstore
blobstore
blobstore.go
blobstore.go
 167:280 
167:280 
 view
87 x 2 v2/internal
internal
api.go
api.go
 409:512 
463:566 
 view
83 x 2 datastore
v2/datastore
load.go
load.go
 63:173 
63:173 
 view
78 x 2 datastore
v2/datastore
save.go
save.go
 225:307 
225:307 
 view
74 x 2 datastore
v2/datastore
query.go
query.go
 292:366 
292:366 
 view
71 x 2 cmd/aefix
v2/cmd/aefix
typecheck.go
typecheck.go
 136:216 
136:216 
 view
70 x 2 datastore
v2/datastore
save.go
save.go
 38:112 
38:112 
 view
67 x 2 cmd/aefix
v2/cmd/aefix
main.go
main.go
 110:196 
110:196 
 view
66 x 2 v2/urlfetch
urlfetch
urlfetch.go
urlfetch.go
 127:205 
126:204 
 view
64 x 2 v2/taskqueue
taskqueue
taskqueue.go
taskqueue.go
 202:274 
202:274 
 view
63 x 2 v2/memcache
memcache
memcache.go
memcache.go
 239:314 
239:314 
 view
61 x 2 cmd/aefix
v2/cmd/aefix
fix.go
fix.go
 560:641 
560:641 
 view
57 x 2 cmd/aefix
v2/cmd/aefix
fix.go
fix.go
 481:548 
481:548 
 view
56 x 2 v2/internal/datastore
internal/datastore
datastore_v3.pb.go
datastore_v3.pb.go
 4043:4099 
4043:4099 
 view
54 x 2 v2/delay
delay
delay.go
delay.go
 239:305 
227:293 
 view