Duplication · guardian/recipes-backend

Duplication Overall

8% duplication:

6,811 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
609 duplicated lines

65 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["lambda"]
    n1["retired"]
    n0 ---|"87"| 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
lambda (2%) --> retired (5%)	87	2 file pairs	details...

Longest Duplicates

The list of 50 longest duplicates.

See data for all 65 duplicates...

Size	#	Folders	Files	Lines	Code
21	x 2	printable-recipe-generator/src printable-recipe-generator/src	reindexSingle.ts triggerReindexPdf.ts	50:72 (22%) 66:88 (15%)	view
21	x 2	printable-recipe-generator/src printable-recipe-generator/src	reindexSingle.ts triggerReindexPdf.ts	90:111 (22%) 103:124 (15%)	view
19	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	main.ts main.ts	238:256 (8%) 53:71 (30%)	view
16	x 2	printable-recipe-generator/src printable-recipe-generator/src	reindexSingle.ts triggerReindexPdf.ts	23:47 (17%) 25:49 (11%)	view
12	x 2	lib/recipes-data/src/lib lib/recipes-data/src/lib	takedown.ts takedown.ts	69:80 (8%) 108:119 (8%)	view
12	x 2	printable-recipe-generator/src printable-recipe-generator/src	reindexSingle.ts triggerReindexPdf.ts	4:18 (13%) 4:18 (8%)	view
12	x 2	cdk/lib cdk/lib	dynamic-fronts.ts personalised-fronts.ts	58:69 (10%) 63:74 (12%)	view
9	x 2	lambda/facia-responder/src/fixtures lambda/facia-responder/src/fixtures	sns.ts sns.ts	11:20 (9%) 102:111 (9%)	view
9	x 2	cdk/lib cdk/lib	recipes-backend.ts recipes-backend.ts	211:219 (2%) 226:234 (2%)	view
8	x 2	lambda/recipes-responder/src lib/capi/src/lib	update_retrievable_processor.ts capi.ts	12:19 (9%) 5:12 (12%)	view
8	x 2	cdk/lib cdk/lib	recipes-backend.ts recipes-reindex.ts	180:187 (2%) 106:113 (4%)	view
7	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	commandline-reindex.ts commandline-reindex.ts	225:231 (2%) 247:253 (2%)	view
7	x 2	lambda/dynamic-fronts-fetcher/src lambda/dynamic-fronts-fetcher/src	s3.ts s3.ts	21:27 (21%) 37:43 (21%)	view
7	x 2	retired/test-indexbuild/src retired/test-indexbuild/src	main.ts main.ts	51:57 (11%) 59:65 (11%)	view
7	x 2	cdk/lib cdk/lib	dynamic-fronts.ts personalised-fronts.ts	5:13 (5%) 4:12 (7%)	view
7	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	commandline-reindex.ts main.ts	6:13 (2%) 4:11 (11%)	view
7	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	main.ts main.ts	225:231 (3%) 23:29 (11%)	view
7	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	main.ts main.ts	244:250 (3%) 51:57 (11%)	view
6	x 2	lambda/facia-responder/src/fixtures lambda/facia-responder/src/fixtures	sns.ts sns.ts	30:35 (6%) 107:112 (6%)	view
6	x 2	lib/recipes-data/src/lib lib/recipes-data/src/lib	s3-recipe-repository.ts s3-recipe-repository.ts	52:57 (2%) 189:194 (2%)	view
6	x 2	lib/recipes-data/src/lib lib/recipes-data/src/lib	takedown.ts takedown.ts	27:32 (4%) 71:76 (4%)	view
6	x 2	lib/recipes-data/src/lib lib/recipes-data/src/lib	takedown.ts takedown.ts	27:32 (4%) 110:115 (4%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	42:47 (2%) 139:144 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	96:101 (2%) 110:115 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	96:101 (2%) 165:170 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	96:101 (2%) 195:200 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	96:101 (2%) 206:211 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	110:115 (2%) 165:170 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	110:115 (2%) 195:200 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	110:115 (2%) 206:211 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	138:143 (2%) 205:210 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	165:170 (2%) 195:200 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	165:170 (2%) 206:211 (2%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts main.ts	195:200 (2%) 206:211 (2%)	view
6	x 2	lambda/facia-responder/src lambda/facia-responder/src	main.ts main.ts	138:143 (4%) 180:185 (4%)	view
6	x 2	cdk/lib cdk/lib	recipes-reindex.ts recipes-reindex.ts	84:89 (3%) 122:127 (3%)	view
6	x 2	lib/recipes-data/src/lib lib/recipes-data/src/lib	transform.ts transform.ts	16:21 (3%) 32:37 (3%)	view
6	x 2	cdk/lib cdk/lib	dynamic-fronts.ts personalised-fronts.ts	48:53 (5%) 56:61 (6%)	view
6	x 2	cdk/lib cdk/lib	dynamic-fronts.ts personalised-fronts.ts	114:120 (5%) 92:98 (6%)	view
6	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	commandline-reindex.ts main.ts	263:268 (2%) 58:63 (9%)	view
6	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	commandline-reindex.ts main.ts	272:277 (2%) 66:71 (9%)	view
6	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	commandline-reindex.ts main.ts	285:290 (2%) 50:55 (9%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	42:47 (2%) 47:52 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	49:54 (2%) 56:61 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	96:101 (2%) 87:92 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	109:114 (2%) 46:51 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	110:115 (2%) 87:92 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	139:144 (2%) 47:52 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	165:170 (2%) 87:92 (7%)	view
6	x 2	lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts	195:200 (2%) 87:92 (7%)	view

Most Frequent Duplicates

The list of 9 most frequently found duplicates.

Size	#	Folders	Files	Lines	Code
6	x 6	lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src	main.ts update_retrievable_processor.ts main.ts main.ts main.ts main.ts	96:101 (2%) 87:92 (7%) 110:115 (2%) 165:170 (2%) 195:200 (2%) 206:211 (2%)	view
6	x 4	lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src	update_processor.ts update_retrievable_processor.ts main.ts main.ts	129:134 (3%) 47:52 (7%) 42:47 (2%) 139:144 (2%)	view
6	x 3	lib/recipes-data/src/lib lib/recipes-data/src/lib lib/recipes-data/src/lib	takedown.ts takedown.ts takedown.ts	27:32 (4%) 71:76 (4%) 110:115 (4%)	view
6	x 3	lambda/recipes-responder/src retired/test-indexbuild/src retired/test-indexbuild/src	main.ts main.ts main.ts	244:249 (2%) 51:56 (9%) 59:64 (9%)	view
6	x 3	lambda/recipes-responder/src retired/test-indexbuild/src lambda/recipes-responder/src	commandline-reindex.ts main.ts main.ts	272:277 (2%) 66:71 (9%) 251:256 (2%)	view
6	x 3	cdk/lib cdk/lib cdk/lib	dynamic-fronts.ts personalised-fronts.ts recipes-reindex.ts	63:68 (5%) 68:73 (6%) 112:117 (3%)	view
6	x 3	lambda/recipes-responder/src retired/test-indexbuild/src lambda/recipes-responder/src	commandline-reindex.ts main.ts main.ts	263:268 (2%) 58:63 (9%) 243:248 (2%)	view
6	x 3	lambda/recipes-responder/src lambda/recipes-responder/src lambda/recipes-responder/src	update_processor.ts update_retrievable_processor.ts main.ts	136:141 (3%) 56:61 (7%) 49:54 (2%)	view
6	x 3	lambda/recipes-responder/src retired/test-indexbuild/src retired/test-indexbuild/src	main.ts main.ts main.ts	245:250 (2%) 52:57 (9%) 60:65 (9%)	view

Duplicated Units

The list of top 5 duplicated units.

See data for all 5 unit duplicates...

Size	#	Folders	Files	Lines	Code
22	x 2	printable-recipe-generator/src printable-recipe-generator/src	triggerReindexPdf.ts reindexSingle.ts	66:90 50:74	view
22	x 2	printable-recipe-generator/src printable-recipe-generator/src	triggerReindexPdf.ts reindexSingle.ts	103:127 90:114	view
7	x 2	printable-recipe-generator/src printable-recipe-generator/src	triggerReindexPdf.ts reindexSingle.ts	39:50 37:48	view
6	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	main.ts main.ts	239:246 56:63	view
6	x 2	lambda/recipes-responder/src retired/test-indexbuild/src	main.ts main.ts	247:254 64:71	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."