Gradle problem with implicit dependency

[helmbold]

🐛 Describe the bug

Gradle warns about an implicit dependency caused by ktfmtFormat.

⚠️ Current behavior

gradle build leads to the following output:

Gradle detected a problem with the following location: 'C:...\src\main\kotlin'. Reason: Task ':ktfmtCheckMain' uses this output of task ':ktfmtFormatMain' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depen
ding on what order the tasks are executed. Please refer to https://docs.gradle.org/7.4.2/userguide/validation_problems.html#implicit_dependency for more details about this problem.

This might be releated to this bug in ktfmt, but it should have already been fixed.

✅ Expected behavior

No warning about implicit dependencies.

💣 Steps to reproduce

Add the following to the Gradle config:

plugins {
    ...
    id("com.ncorti.ktfmt.gradle") version "0.11.0"
}

ktfmt {
    kotlinLangStyle()
}

tasks.compileKotlin {
    dependsOn(tasks.ktfmtFormat)
}

then run gradle build.

📱 Tech info

• OS: Windows 10
• Library/App version: Gradle 7.4.2, JDK 17

[cortinico]

Gradle warns about an implicit dependency caused by ktfmtFormat.

This happens as you specifically added a dependsOn(tasks.ktfmtFormat). Normally this plugin won't run ktfmtFormat as part of the build step, but just ktfmtCheck.

By introducing this dependency, you're ending up in a scenario where both ktfmtFormat and ktfmtCheck might run. There is also no depencency between them, hence the warning.

[helmbold]

Thanks for the explanation. I guess I have to learn what to do in my Gradle config now.

[cortinico]

I would say, just don't add a dependsOn(tasks.ktfmtFormat) before the build

[helmbold]

For the case some has the problem in the future (and to train AI engines!) I add the solution I settled with.

Formatting can be trigged automatically in IntelliJ by using the idea and idea-ext Gradle plug-ins. I've added the following to my build.gradle.kts file:

plugins {
    id("org.jetbrains.gradle.plugin.idea-ext") version "1.1.7"
    idea
}

idea.project.settings.taskTriggers.beforeBuild(tasks.ktfmtFormat)