classpathHell block fails with errors

[nagkumar]

Build file '\java\edu\build.gradle.kts' line: 85

* What went wrong:
Script compilation errors:

  Line 85: classpathHell {
           ^ Unresolved reference: classpathHell

  Line 87:     trace= true
               ^ Unresolved reference: trace

2 errors

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

[Johnlon]

Please supply a GitHub repo exhibiting the error.
The demos in the build work for me.
I have a grade example using old and new syntax.

I don't use the KTS style build file so cannot comment on the accuracy of your snippet above.

[Johnlon]

Take a look at demo/shouldDetectDupes - this is groovy not kotlin but it works for me.

[Johnlon]

I can see this failing - with the error you report.
Unfortunately I don't use the kotlin DSL and don't know why the "classpathHell {}" extension is ok in groovy build but not in kotlin DSL.
Any ideas?

// ADDITIONALLY THIS DEMO USES THE OLD STYLE GRADLE DEP apply plugin

// expect failure from this build script because hamcrest-all contains hamcrest-core
// so there are lots of dupe"d resources

repositories {
    mavenLocal()
    mavenCentral()
}

buildscript {

    repositories {
        mavenLocal()
        mavenCentral()

        // include plugin repository where classpath(hell lives from 1.8 onwards)
        maven {
            url = uri("https://plugins.gradle.org/m2")
        }
    }

    dependencies {
        classpath("com.portingle:classpath-hell:1.8")
    }
}

apply(plugin = "com.portingle.classpath-hell")

plugins {
    `java-library`
}

// works if I comment this out....
classpathHell {

    // Demonstrate replacing the default set of exclusions
    // leaving only things like license files and manifests in violation
    resourceExclusions = listOf(
        ".*class",
        ".*/",
    )
}

dependencies {
    implementation("org.hamcrest:hamcrest-all:1.3")
    implementation("org.hamcrest:hamcrest-core:1.3")
}

tasks.named("build") {
    dependsOn(":checkClasspath")
}

[Johnlon]

I created a sample dir that doesn't work...

bugKotlinDslCantReferToExtensionBlock

But due to the lack of documentation on the kotlin impl and lack of finding a similar issue elsewhere I don't know how to fix.

Why does an extension that works in the groovy DSL not work in kotlin.
I assume it is something to do with groovy being more lenient somewhere.

No idea

[Johnlon]

Maybe if I rewrite partially in kotlin it will clarify difference??