Duplication · guardian/janus-app

Duplication Overall

9% duplication:

8,177 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
744 duplicated lines

52 duplicates

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

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

flowchart TB
    n0["app"]
    n1["setup"]
    n0 ---|"144"| n1
    classDef default fill:#00b2ee,stroke:#ffffff,color:#000000;
    classDef highlighted fill:#00b2ee,stroke:#ffffff,color:#000000;
    linkStyle 0 stroke:#DC143CFF,stroke-width:10px

Download: Mermaid (.mmd) (open online Mermaid editor)

2D force graph | 3D force graph

Show more details on duplication between components...

From Component --> To Component	Duplicated Lines	File Pairs	Details
app (1%) --> setup (19%)	144	1 file pair	details...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 52 duplicates...

Size	#	Folders	Files	Lines	Code
72	x 2	app/aws setup/src/main/scala/aws	Clients.scala Clients.scala	18:123 (100%) 18:123 (100%)	view
22	x 2	app/views app/views	accountPolicies.scala.html developerPoliciesStatus.scala.html	82:107 (24%) 63:88 (30%)	view
16	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala	49:66 (32%) 44:60 (34%)	view
15	x 2	configTools/src/main/scala/com/gu/janus/policy configTools/src/main/scala/com/gu/janus/policy	Statements.scala Statements.scala	71:85 (20%) 92:106 (20%)	view
12	x 2	app/services app/services	MetricsService.scala MetricsService.scala	93:104 (5%) 166:177 (5%)	view
12	x 2	app/services app/services	MetricsService.scala MetricsService.scala	93:104 (5%) 234:245 (5%)	view
12	x 2	app/services app/services	MetricsService.scala MetricsService.scala	166:177 (5%) 234:245 (5%)	view
11	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala	37:47 (22%) 32:42 (23%)	view
10	x 2	app/aws app/aws	PasskeyDB.scala PasskeyDB.scala	156:165 (4%) 173:182 (4%)	view
10	x 2	frontend/utils frontend/utils	passkeys.js passkeys.js	128:140 (3%) 153:165 (3%)	view
10	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala PasskeyDBSetup.scala	76:85 (12%) 45:54 (21%)	view
10	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala PasskeyChallengeDBSetup.scala	76:85 (12%) 50:59 (20%)	view
9	x 2	app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html	19:28 (9%) 30:39 (9%)	view
9	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala PasskeyDBSetup.scala	69:77 (11%) 47:55 (19%)	view
9	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala PasskeyChallengeDBSetup.scala	69:77 (11%) 52:60 (18%)	view
8	x 2	app/controllers app/controllers	Janus.scala Janus.scala	237:244 (2%) 259:266 (2%)	view
8	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala AuditTrailDBSetup.scala	27:34 (10%) 60:67 (10%)	view
8	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala AuditTrailDBSetup.scala	69:76 (10%) 78:85 (10%)	view
8	x 2	app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html	63:70 (8%) 73:80 (8%)	view
8	x 2	app/views app/views	accountPolicies.scala.html developerPoliciesStatus.scala.html	32:42 (8%) 12:22 (11%)	view
8	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala	28:35 (16%) 23:30 (17%)	view
8	x 2	app/views app/views	index.scala.html noPermissions.scala.html	51:58 (14%) 15:22 (42%)	view
7	x 2	app/controllers app/controllers	Janus.scala Janus.scala	184:190 (1%) 193:199 (1%)	view
7	x 2	app/controllers app/controllers	Janus.scala Janus.scala	272:278 (1%) 300:306 (1%)	view
7	x 2	app/models app/models	DeveloperPolicy.scala DeveloperPolicy.scala	33:39 (10%) 45:51 (10%)	view
7	x 2	app/logic app/logic	UserAccess.scala UserAccess.scala	40:46 (3%) 69:75 (3%)	view
7	x 2	configTools/src/main/scala/com/gu/janus/model configTools/src/main/scala/com/gu/janus/model	models.scala models.scala	118:124 (5%) 142:148 (5%)	view
7	x 2	app/controllers app/controllers	Audit.scala Audit.scala	67:73 (10%) 78:84 (10%)	view
7	x 2	app/views/support app/views/support	notSupport.scala.html support.scala.html	7:16 (53%) 9:17 (26%)	view
6	x 2	configTools/src/main/scala/com/gu/janus/policy configTools/src/main/scala/com/gu/janus/policy	Statements.scala Statements.scala	30:35 (8%) 50:55 (8%)	view
6	x 2	app/controllers app/controllers	Janus.scala Janus.scala	67:72 (1%) 128:133 (1%)	view
6	x 2	app/logic app/logic	UserAccess.scala UserAccess.scala	32:37 (2%) 61:66 (2%)	view
6	x 2	configTools/src/main/scala/com/gu/janus/model configTools/src/main/scala/com/gu/janus/model	models.scala models.scala	92:97 (4%) 119:124 (4%)	view
6	x 2	configTools/src/main/scala/com/gu/janus/model configTools/src/main/scala/com/gu/janus/model	models.scala models.scala	92:97 (4%) 143:148 (4%)	view
6	x 2	app/services app/services	MetricsService.scala MetricsService.scala	36:41 (2%) 84:89 (2%)	view
6	x 2	app/services app/services	MetricsService.scala MetricsService.scala	36:41 (2%) 157:162 (2%)	view
6	x 2	app/services app/services	MetricsService.scala MetricsService.scala	84:89 (2%) 157:162 (2%)	view
6	x 2	app/services app/services	MetricsService.scala MetricsService.scala	186:191 (2%) 211:216 (2%)	view
6	x 2	app/views app/views	accountPolicies.scala.html accountPolicies.scala.html	30:35 (6%) 55:60 (6%)	view
6	x 2	app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html	20:26 (6%) 63:68 (6%)	view
6	x 2	app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html	20:26 (6%) 73:78 (6%)	view
6	x 2	app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html	31:37 (6%) 63:68 (6%)	view
6	x 2	app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html	31:37 (6%) 73:78 (6%)	view
6	x 2	configTools/src/main/scala/com/gu/janus/config configTools/src/main/scala/com/gu/janus/config	Loader.scala Loader.scala	106:111 (3%) 195:200 (3%)	view
6	x 2	app/aws app/aws	AuditTrailDB.scala AuditTrailDB.scala	25:30 (7%) 47:52 (7%)	view
6	x 2	app/aws app/aws	AuditTrailDB.scala AuditTrailDB.scala	37:42 (7%) 57:62 (7%)	view
6	x 2	app/controllers app/controllers	Audit.scala Audit.scala	37:42 (8%) 58:63 (8%)	view
6	x 2	app/aws app/aws	PasskeyChallengeDB.scala PasskeyChallengeDB.scala	63:68 (8%) 93:98 (8%)	view
6	x 2	setup/src/main/scala/aws setup/src/main/scala/aws	AuditTrailDBSetup.scala PasskeyDBSetup.scala	32:37 (7%) 32:37 (12%)	view
6	x 2	app/views app/views	accountPolicies.scala.html developerPoliciesStatus.scala.html	45:53 (6%) 26:34 (8%)	view

Most Frequent Duplicates

The list of 17 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 4	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala AuditTrailDBSetup.scala	54:59 (12%) 49:54 (12%) 71:76 (7%) 80:85 (7%)	view
6	x 4	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala AuditTrailDBSetup.scala	53:58 (12%) 48:53 (12%) 70:75 (7%) 79:84 (7%)	view
6	x 4	app/views/fragments app/views/fragments app/views/fragments app/views/fragments	supportUsers.scala.html supportUsers.scala.html supportUsers.scala.html supportUsers.scala.html	20:26 (6%) 31:37 (6%) 63:68 (6%) 73:78 (6%)	view
6	x 4	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala AuditTrailDBSetup.scala	52:57 (12%) 47:52 (12%) 69:74 (7%) 78:83 (7%)	view
6	x 3	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala	51:56 (12%) 46:51 (12%) 77:82 (7%)	view
6	x 3	configTools/src/main/scala/com/gu/janus/model configTools/src/main/scala/com/gu/janus/model configTools/src/main/scala/com/gu/janus/model	models.scala models.scala models.scala	92:97 (4%) 119:124 (4%) 143:148 (4%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	98:103 (2%) 171:176 (2%) 239:244 (2%)	view
6	x 3	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala	37:42 (12%) 32:37 (12%) 32:37 (7%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	36:41 (2%) 84:89 (2%) 157:162 (2%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	93:98 (2%) 166:171 (2%) 234:239 (2%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	99:104 (2%) 172:177 (2%) 240:245 (2%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	94:99 (2%) 167:172 (2%) 235:240 (2%)	view
6	x 3	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala	55:60 (12%) 50:55 (12%) 72:77 (7%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	97:102 (2%) 170:175 (2%) 238:243 (2%)	view
6	x 3	setup/src/main/scala/aws setup/src/main/scala/aws setup/src/main/scala/aws	PasskeyChallengeDBSetup.scala PasskeyDBSetup.scala AuditTrailDBSetup.scala	50:55 (12%) 45:50 (12%) 76:81 (7%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	96:101 (2%) 169:174 (2%) 237:242 (2%)	view
6	x 3	app/services app/services app/services	MetricsService.scala MetricsService.scala MetricsService.scala	95:100 (2%) 168:173 (2%) 236:241 (2%)	view

Duplicated Units

The list of top 1 duplicated units.

See data for all 1 unit duplicate

Size	#	Folders	Files	Lines	Code
57	x 2	app/aws setup/src/main/scala/aws	Clients.scala Clients.scala	33:111 33:111	view

About This Analysis

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...

To learn more about duplications and techniques for eliminating duplication, Sokrates recommends the following resources:

Avoid Repetition, MartinFlower.com (IEEE Software article)
Refactoring duplicated code, sourcemaking.com
Beck Design Rules, MartinFowler.com
DRY (Don't Repeat Yourself) Principle, Wikipedia
The Cut-and-Paste Programming Software Development Anti-Pattern, sourcemaking.com
Code Smells / Duplicated Code, Jeff Atwood, codinghorror.com:

"Duplicated code is the bane of software development. Stamp out duplication whenever possible. You should always be on the lookout for more subtle cases of near-duplication, too. Don't Repeat Yourself!"

Reducing Coupling, MartinFlower.com (IEEE Software article):

"There are several ways to describe coupling, but it boils down to this: If changing one module in a program requires changing another module, then coupling exists. ... Duplication always implies coupling, because changing one piece of duplicate code implies changing the other."