This plugin calculates code complexity metric right in the editor and shows the complexity in the hint next to the method/class. It's based on the Cognitive Complexity metric proposed by G. Ann Campbell in Cognitive Complexity - A new way of measuring understandability.
Works with Java, Kotlin, and Python.
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Using IDE built-in plugin system:
Settings/Preferences > Plugins > Marketplace > Search for "code-complexity-plugin" > Install Plugin
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Manually:
Download the latest release and install it manually using Settings/Preferences > Plugins > ⚙️ > Install plugin from disk...
I chose 8 points as a medium complexity method and use it as 100%. This means that all the methods above 100% are good candidates for splitting/improving.
The formula is: percentage = points / 8 * 100
You can find plugin configuration under Settings > Tools > Code Complexity
There is an inspection added to support checking multiple files in your project.
All the supported languages of the plugin also work in inspection.
To run the inspection: Search everywhere > Run inspection by Name... > High code complexity
The inspection works only on methods currently and will find all the methods with the very high complexity score.
NOTE: You can enable inspection to work on the fly, but in this case it will do the same as code hints which are already in your editor - it will highlight the methods with the very high complexity score.
- Update version in
gradle.properties - Update version and description in
CHANGELOG.md - Run
./gradlew publishPlugin - Push to repo with the proper tag
Plugin based on the IntelliJ Platform Plugin Template.