I'm writing some tests for a Kotlin Gradle plugin ...

# intellij

[Adam S]

I'm writing some tests for a Kotlin Gradle plugin using Gradle TestKit. I'm writing build.gradle.kts files using multiline strings, and I'd like to use IntelliJ Language Injection so it looks pretty.

I've set @Language("kotlin"), however, IntelliJ doesn't like it and shows an error. Is there a way of telling the language injection to highlight a string as if it were a .gradle.kts file?

fun File.`build gradle kts`(@Language("kotlin") contents: String): File =
    createFile("build.gradle.kts", contents)

[Chris Lee]

kotlin != Gradle Kotlin DSL; without knowledge of the Gradle specifics (APIs / DSL), IntelliJ will only be able to get partway there. From the screenshot it looks like it’s complaining about now knowing what plugins is - rightfully so, cuz that is provided by Gradle. Perhaps there is a Language that is specific to Gradle Kotlin DSL build scripts? (not familiar with this aspect of IntelliJ)

[Adam S]

There's no Gradle, kts, Kotlin Script in the list of options that are shown in the GUI

[Chris Lee]

looks like you’re stuck with Kotlin, or could consider creating a custom language injection.

[Adam S]

I don't think custom language injection exists

I'm going to try defining the Gradle project in a test/resources directory. Then I can use IntelliJ to edit the files, which should be a bit nicer than a string

[Adam S]

Using @Language("kts") gets the result I want 👍