How can I make a custom task that does 2 things?

Help/Discuss
1

I want to make a plugin with a custom task that does the same as this, but allows users to configure the inputs and outputs (an outline of code which works in build.gradle):

task(prepareResolve, type: Copy) {
    dependsOn = [bootRepackage]
    from jar.archivePath
    into 'build/tmp'
}

task(resolve, type: Exec) {
    dependsOn = [prepareResolve]
    workingDir 'build/tmp'
    commandLine Jvm.current().javaExecutable
    args ..., "-jar", jar.archiveName
}

but I only want one task (there’s only one thing for the user to do, which is “resolve”, so there’s no point having additional tasks).

I can’t figure out how to nest the Copy and Exec into a single custom task. I can add a custom task to a plugin and see it running, but I can’t work out how to instantiate and execute the nested bits.

2

You could use Project.copy and Project.exec. But in general splitting things up is a good idea, because when something fails, Gradle can resume at the last successful task instead of doing everything again.

It’s quite normal to have tasks that are just implementation details.

3

Sorry you lost me. I’m doing this in Java, so maybe Project.copy is a Groovy DSL? I don’t see it in the API.

4

Does your Java IDE have no auto completion? :slight_smile: Here’s the JavaDoc link.

5

Still lost. I can only pass in a Closure. I don’t think this is helping much.

6

You can pass in an Action, see the JavaDoc I just linked. Make sure you are using a recent Gradle version.