JetBrains / lincheck Source Code Overview

Analysis scope, overview of main, test, generated, deployment, build, and other code.

Source Code Analysis Scope

Files includes and excluded from analyses

txt

properties

cfg

13 extensions are included in analyses: kt, txt, java, md, kts, properties, xml, json, sh, cfg, gitignore, bat, yaml
3 criteria are used to exclude files from analysis:

exclude files with path like ".*/gradle/wrapper/.*" (Gradle) (1 file).
exclude files with path like ".*/[.][a-zA-Z0-9_]+.*" (Hidden files and folders) (6 files).
exclude files with path like ".*/docs/.*" (Documentation) (10 files).

The source code folder contains 846 files:

820 files are included in analyses.
26 files are excluded from analyses:

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Overview of Analyzed Files

Basic stats on analyzed files

Intro

For analysis purposes we separate files in scope into several categories: main, test, generated, deployment and build, and other.

The main category contains all manually created source code files that are being used in the production.
Files in the main category are used as input for other analyses: logical decomposition, concerns, duplication, file size, unit size, and conditional complexity.
Test source code files are used only for testing of the product. These files are normally not deployed to production.
Build and deployment source code files are used to configure or support build and deployment process.
Generated source code files are automatically generated files that have not been manually changed after generation.
While a source code folder may contain a number of files, we are primarily interested in the source code files that are being written and maintained by developers.
Files containing binaries, documentation, or third-party libraries, for instance, are excluded from analysis. The exception are third-party libraries that have been changed by developers.

276 files

207 files

4 files

2 files

331 files

Main Code

All manually created or maintained source code that defines logic of the product that is run in a production environment.

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The following criteria are used to filter files:

files with paths like ".*".

276 files match defined criteria (31,346 LOC, 100.0% vs. main code):

238 *.kt files (28,399 LOC)
25 *.java files (2,180 LOC)
13 *.kts files (767 LOC)

" *.kt" is biggest, containing 90.6% of LOC.
" *.kts" is smallest, containing 2.45% of LOC.

Test Code

Used only for testing of the product. Normally not deployed in a production environment.

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The following criteria are used to filter files:

files with paths like ".*/[Tt]est/.*".
files with paths like ".*_test[.].*".
files with paths like ".*[.][Tt]est[.].*".
files with paths like ".*[.]test[.].*".
files with paths like ".*_tests[.].*".

207 files match defined criteria (15,209 LOC, 48.5% vs. main code):

194 *.kt files (14,828 LOC)
12 *.java files (368 LOC)
1 *.sh files (13 LOC)

" *.kt" is biggest, containing 97.49% of LOC.
" *.sh" is smallest, containing 0.09% of LOC.

Generated Code

Automatically generated files, not manually changed after generation.

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The following criteria are used to filter files:

files with paths like ".*/generated/.*".

4 files match defined criteria (4,428 LOC, 14.1% vs. main code). All matches are in *.kt files.

Build and Deployment Code

Source code used to configure or support build and deployment process.

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The following criteria are used to filter files:

files with paths like ".*[.]bat".
files with paths like ".*[.]git[a-z]+".
files with paths like ".*/[.]gitignore".
files with paths like ".*[.]sh".

2 files match defined criteria (137 LOC, 0.4% vs. main code):

1 *.bat files (71 LOC)
1 *.sh files (66 LOC)

" *.bat" is biggest, containing 51.82% of LOC.
" *.sh" is smallest, containing 48.18% of LOC.

Other Code

txt

properties

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The following criteria are used to filter files:

files with paths like ".*[.]md".
files with paths like ".*/README[.][a-z0-9]+".
files with paths like ".*[.]txt".
files with paths like ".*[.]properties".
files with paths like ".*/LICENSE[.][a-z0-9]+".
files with paths like ".*[.]json".
files with paths like ".*/[.]gitignore".

331 files match defined criteria (41,284 LOC, 131.7% vs. main code):

316 *.txt files (39,559 LOC)
4 *.json files (1,065 LOC)
6 *.md files (562 LOC)
5 *.properties files (98 LOC)

" *.txt" is biggest, containing 95.82% of LOC.
" *.properties" is smallest, containing 0.24% of LOC.

Analyzers

Info about analyzers used for source code examinations.

*.kt files are analyzed with KotlinAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis (based on imports and package statements)

*.java files are analyzed with JavaAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis (based on package names)

*.kts files are analyzed with KotlinAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis (based on imports and package statements)

2026-01-18 17:07