Document how to publish packages to a maven repository

Sorry if this has come up before or if it’s documented somewhere but I couldn’t figure out how to publish a generated content package to a maven repository.

If I understood everything correctly, the following should do that:

configure<PublishingExtension> {
    publications {
        create<MavenPublication>("aemPackage") {
            artifact(project.tasks.named("packageCompose"))
        }
    }
}

However this results in the following error during configuration:

* What went wrong:
Cannot convert the provided notation to an object of type MavenArtifact: task ':packageCompose'.
The following types/formats are supported:
  - Instances of MavenArtifact.
  - Instances of AbstractArchiveTask, for example jar.
  - Instances of PublishArtifact
  - Maps containing a 'source' entry, for example [source: '/path/to/file', extension: 'zip'].
  - Anything that can be converted to a file, as per Project.file()

* 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.

This message confuses me since clearly :packageCompose is a task that inherits from com.cognifide.gradle.aem.common.tasks.ZipTask, which inherits from org.gradle.api.tasks.bundling.Zip, which, in turn, inherits from AbstractArchiveTask, as required.

I’m not sure if this is an issue with the gradle-aem-plugin or the maven-publishing plugin. I suspect this is not a bug but simply a misconfiguration on my part but I think it’s a common-enough use-case that it needs to be documented.

[pun-ky]

just like a said earlier … @sabberworm Gradle fixed this in 6.0.1 https://github.com/gradle/gradle/issues/11054

[pun-ky]

@sabberworm heh, but it was looking promising 😉