i’m migrating from groovy to kotlin and i have a question about extensions. I would like to create a...

# gradle

[samuel]

i’m migrating from groovy to kotlin and i have a question about extensions. I would like to create an extension in a kotlin file under buildSrc and access that extension from all the gradle scripts in my project. I was under the impression that it was possible since all files under buildSrc are automatically added to the class path but it doesn’t seem to work for me. When i define the extension in the same class as its usage, it works fine
build.gradle.kts

repositories {
    myExtension()
}

fun RepositoryHandler.myExtension(): MavenArtifactRepository =
maven {
    // Some code
}

But if i define the extension in another file, i can’t seem to get it to work as here:
build.gradle.kts

import extensions.myExtension

repositories {
    myExtension()
}

buildSrc/src/main/kotlin/extensions/MyExtensionFile.kt

package extensions
// some imports

fun RepositoryHandler.myExtension(): MavenArtifactRepository =
maven {
    // Some code
}

Specifying the extension in another file yields - Unresolved reference: extensions .Is it possible to have such a setup with reusable extensions accessible from all the gradle files?

[Vampire]

You miss package extensions in your MyExtensionFile.kt, don't you?

[samuel]

i forgot to add it to the snippet above, but it is specified in the actual code

[Vampire]

Works fine here

[Vampire]

Just tried it in a play project

[samuel]

was it able to build? it imports fine for me but fails to build 🤔

[Vampire]

I have added a println("FOO") to the extension and executed the help task

[Vampire]

FOO was printed, build successful

[Vampire]

Can you provide a full reproducer, maybe it is just a tiny bit you are having wrong

[samuel]

hmmm..interesting 🤔 let me try and see if i can reproduce in an empty project, might be a small mistake indeed

[samuel]

created a new Android project and was able to reproduce this, it complains about the same thing Unresolved reference: extensions

[samuel]

here’s a link to the reproducible code https://gitlab.com/samuelprince411/dsltest

[Vampire]

Does it complain about the one in buildSrc/build.gradle.kts? Because that is expected.

[Vampire]

buildSrc/build.gradle.kts defines how to build the stuff in buildSrc/src so you cannot use things from buildSrc/src in the definition of how to build it.

[Vampire]

hen and egg, you know

[samuel]

ahhh! that makes total sense now! usages outside the build.gradle.kts work perfectly fine, thank you for the help 😃

[Vampire]

yw