Hi! Is it possible to use a Kotlin plugin inside a...

# gradle

[Johann Pardanaud]

Hi! Is it possible to use a Kotlin plugin inside a plugin script located in buildSrc? I've created a simple build with the following structure:

• project lib
• project app (depends on lib)
both projects will be written in Kotlin, so I wanted to create a plugin script to group some common configuration, here is the content of `buildSrc/src/main/kotlin/kotlin-conventions.gradle.kts`:

plugins {
    kotlin("jvm")
}

but, when I run it, I get the following error:

Plugin [id: 'org.jetbrains.kotlin.jvm'] was not found in any of the following sources:

- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Plugin Repositories (plugin dependency must include a version number for this source)

and if I try to set a version with kotlin("jvm") version "1.8.10", I get:

Invalid plugin request [id: 'org.jetbrains.kotlin.jvm', version: '1.8.10']. Plugin requests from precompiled scripts must not include a version number. Please remove the version from the offending request and make sure the module containing the requested plugin 'org.jetbrains.kotlin.jvm' is an implementation dependency of project ':buildSrc'.

Here is a reproducible example, you just have to download the zip file and run ./gradlew

gradle-test.zip

[Adam S]

you’ll need to add the Kotlin plugin as a regular dependency in buildSrc/build.gradle.kts

I find the easiest way is to find the plugin in the Gradle Plugin Portal, and look at the ‘legacy’ method. It will have classpath(<maven-coordinates>). Use those coordinates as the dependency, like so:

// buildSrc/build.gradle.kts
plugins {
  `kotlin-dsl`
}

dependencies {
  implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
}

[ephemient]

https://github.com/gradle/gradle/issues/18620

[Johann Pardanaud]

works like a charm, thank you @Adam S!

[Vampire]

@Adam S you find that easier than to simply use <pluginid>:<pluginid>.gradle.plugin:<pluginversion>?