Maven-plublish: multiple artifacts with the identical extension and classifier

Bugs
1

Hi everyone,

I’m wondering what’s behind the decision that project can’t publish mutliple artifacts with different artifactId but the same classfier and extension. Is this a bug or feature?

task zip1(type: Zip) {
  from {...}
  baseName = 'zip1'
  classifier = 'c1'
}

task zip2(type: Zip) {
  from {...}
  baseName = 'zip2'
  classifier = 'c1'
}

publishing {
    publications {
        main(MavenPublication) {
            ...
            artifact zip1
            artifact zip2
        }
    }
}

This ends up with

> Failed to publish publication 'main' to repository 'mavenLocal'
   > Invalid publication 'main': multiple artifacts with the identical extension and classifier ('zip', 'c1').

Thanks for any info.

Gradle Version: 3.1
Operating System and JVM version: 1.8.0_92 (Oracle Corporation 25.92-b14), Fedora 24
Is this a regression? No

2

Publishing under different artifactIDs means you want to have multiple publications. Try something like:

publishing {
    publications {
        main( MavenPublication ) {
            artifact zip1
        }
        someOtherName( MavenPublication ) {
            artifact zip2
        }
    }
}
2 Likes
3

I tried that too, but there is another limitation:

> Exception thrown while executing model rule: PublishingPlugin.Rules#publishing(ExtensionContainer) 
   > Publishing is not yet able to resolve a dependency on a project with multiple different publications

That’s why I use the first solution, which works quite well, but only if you don’t have multiple artifacts with identical extension and classifier.

4

Interesting, none of my projects have had a mix of multiple publications with project dependencies, so I guess I’ve been lucky.

Perhaps the workaround in this issue helps?
https://issues.gradle.org/browse/GRADLE-2966