Using Gradle to build a jar with dependencies with Kotlin-DSL

Question

There is already an answer to the question: how to include all the dependencies in a jar file though it's for Groovy

I'm using gradle with kotlin-dsl and the code is not compatible. I tried to make it work using a few ways including:

tasks.withType<Jar> {
    configurations["compileClasspath"].forEach { file: File ->
        copy {
            from(zipTree(file.absoluteFile))
        }
    }
}

Though this doesn't work. So how to include the dependencies using kotlin-dsl in gradle?

hotkey · Accepted Answer · 2017-09-28T13:55:00.323

8

This will work:

tasks.withType<Jar>() {
    configurations["compileClasspath"].forEach { file: File ->
        from(zipTree(file.absoluteFile))
    }
}

There's no need in copy { ... }, you should call from on the JAR task itself.

Note: Gradle does not allow changing the dependencies after they have been resolved. It means that the block above should be executed only after the dependencies { ... } are configured.

edited Sep 28 '17 at 13:55

answered Sep 11 '17 at 14:14

hotkey

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I always get the error: `Cannot change dependencies of configuration ':compile' after it has been included in dependency resolution.` – guenhter Sep 12 '17 at 05:34
2

Do you add dependencies after your code example (or the improved one). Once you've read the dependencies in a configuration, it is resolved and you can't add dependencies. – Lukas Körfer Sep 12 '17 at 08:14
1

@lu.koerfer this was the problem. I had the `dependency` block after this one. Thx. – guenhter Sep 28 '17 at 13:38
@hotkey: Could you please update your solution and point out, that the dependencies block must before the `tasks.withType...`. I guess this could be useful to others in the future. – guenhter Sep 28 '17 at 13:41
@guenhter Done. – hotkey Sep 28 '17 at 13:55
@hotkey appreciate it! – guenhter Sep 28 '17 at 13:55

seunggabi · Answer 2 · 2022-08-17T14:40:03.623

my case

withType<Jar> {
    enabled = true
    isZip64 = true
    duplicatesStrategy = DuplicatesStrategy.EXCLUDE

    archiveFileName.set("$project.jar")

    from(sourceSets.main.get().output)
    dependsOn(configurations.compileClasspath)
    from({
        configurations.compileClasspath.get().filter {
            it.name.endsWith("jar")
        }.map { zipTree(it) }
    }) {
        exclude("META-INF/*.RSA", "META-INF/*.SF", "META-INF/*.DSA")
    }
}

Using Gradle to build a jar with dependencies with Kotlin-DSL

2 Answers2

my case