ktlint integration does not report most errors

[Grannath]

Hopefully I did not miss anything, but then again there is not much documentation to go by.

Expected Behavior

The Detekt Gradle plugin, with the KtLint wrapper extension as a dependency, reports all issues the standalone version of KtLint does.

Observed Behavior

On a small project, KtLint reports about 20 issues, while Detekt reports none.

Steps to Reproduce

Have a Gradle project with

plugins {
    id "io.gitlab.arturbosch.detekt" version "1.2.1"
}

dependencies {
    detektPlugins "io.gitlab.arturbosch.detekt:detekt-formatting:1.2.1"
}

in the build script. Have some issues like

• Imports must be ordered in lexicographic order without any empty lines in-between
• Missing spacing before ":"
• Parameter should be on a separate line (unless all parameters can fit a single line)
  Now compare results from running ./gradlew detekt and ktlint.

Context

I only noticed this by accident. So I do not know how long this was the case. I'll see in my other projects if they have the same issue.

Your Environment

• Version of detekt used: 1.2.1
• Version of Gradle used 5.4.1
• Operating System and version: Manjaro Linux and OpenJDK 8 (ask if you need anything specific)

[kirich1409]

@arturbosch Any updates? 1.6.0 has the same problem for the Unsafe Cast check. It doesn't report about errors

[arturbosch]

Should be fixed by #2709. #2710 proves that detekt-formatting reports the same issus as KtLint itself.

The detekt Gradle plugin does not consider Gradle build files by default.
Only source sets. Consider adding a custom detekt task for the build files.