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Howto: make detekt silent

· One min read

detekt's reporting mechanism relies on implementations of ConsoleReport's. The cli module and therefore the Gradle plugin implement a bunch of this reports.

A typical detekt report will look like following:


There are many different parts which might or might not interest you. If one part is not important to you, it can be excluded in the yaml configuration file. A silent configuration would exclude all possible processors and reports:

active: true
- 'DetektProgressListener'
- 'FunctionCountProcessor'
- 'PropertyCountProcessor'
- 'ClassCountProcessor'
- 'PackageCountProcessor'
- 'KtFileCountProcessor'

active: true
- 'ProjectStatisticsReport'
- 'ComplexityReport'
- 'NotificationReport'
- 'FindingsReport'
- 'BuildFailureReport'

Running with this config won't produce any console messages:


Just verify that the ./report.txt is not empty ;).

We might find detekt's FindingsReport too verbose and just want to print one message line per finding. This can be achieved by implementing a custom ConsoleReport.

class SingleLineFindingsReport : ConsoleReport() {

override fun render(detektion: Detektion): String? =
.joinToString("\n") { "${} - ${it.message} - ${it.entity.location.file}" }

Combined with our silent configuration only messages are printed when findings are actually found:


See the extension documention on how to let detekt know about your custom report.