how to copy all source jars using gradle

Question

We have an old playframework 1.2.x version where we copy all the jars to project/lib so playframework can consume them. We would LOVE to copy all the source jars as well so

Answer 1

this is not that straight forward as expected. The following snippet copies the source jars for all dependencies (runtime + compile) of a java project into a specific folder:

    task copySourceJars(type:Copy){
        def deps = configurations.runtime.incoming.dependencies.collect{ dependency ->
            dependency.artifact { artifact ->
                    artifact.name = dependency.name
                    artifact.type = 'source'
                    artifact.extension = 'jar'
                    artifact.classifier = 'sources'
                }
            dependency
        }
        from(configurations.detachedConfiguration(deps as Dependency[]).resolvedConfiguration.lenientConfiguration.getFiles(Specs.SATISFIES_ALL))
        into('sourceLibs')
    }

The reason we use a lenientConfiguration here is, that we don't want to fail if a source artifact cannot be resolved. There might be a more elegant way, but I havn't looked deeper into that.

hope it helps,

René