ktlintFormat creates directories under src

[red-avtovo]

When I run ktlintFormat there are the following directories, which are created under src directory:

• src/main/java
• src/main/kotlin
• src/test/java
• src/test/kotlin

It is pretty annoying seeing java directory all the time and have no chance to get rid of it when you write a 100% Kotlin project. Is there a way to ask ktlint not to create these directories?

[Tapchicoma]

Are you sure that it is ktlint-gradle who creates this directories?

Generally this plugin only modifies files without creating any SourceSet and related directories, plus I haven't seen such behaviour in my other projects that apply this plugin.

Maybe you could create some project to reproduce it or share your project?

[red-avtovo]

Here you go: https://github.com/red-avtovo/ktlintTest
If you will pull the repo and run ./gradlew ktlintFormat it will create a java directory under src

[red-avtovo]

Some additional info: when you run ktlintFormat these tasks are being executed as dependencies

./gradlew ktlintFormat --dry-run
:ktlintKotlinScriptFormat SKIPPED
:ktlintMainSourceSetFormat SKIPPED
:ktlintTestSourceSetFormat SKIPPED
:ktlintFormat SKIPPED

When I call just ./gradlew :ktlintMainSourceSetFormat java directory is already being created

[JLLeitschuh]

This may be because we are declaring the source sets to be both inputs and outputs. As such, Gradle has a CreateOutputsStep processor that runs on tasks to automatically generate the output directories for the task. Since for the Format task, the inputs and outputs are the same, Gradle ends up generating these directories.

Semi-related:
gradle/gradle#15679

[Tapchicoma]

Could reproduce this issue with sample project 👍

Relates to #306

[ed0906]

We also have this issue
Temporary workaround is to just delete the extra folders immediately after

tasks {
    ktlintFormat {
        doLast {
            delete("src/main/java")
            delete("src/test/java")
            // etc
        }
    }
}