How do I force gradle to download dependency sources

Help/Discuss
1

Title says it all. How do I force gradle to download dependency sources

2

If you’re using eclipse or intellij plugins there’s support for doing this. Eg

apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'eclipse'

eclipse {
    classpath {
       downloadSources=true
       downloadJavadoc = true
    }
}
idea {
    module {
        downloadJavadoc = true
        downloadSources = true
    }
}

Or you can use an ArtifactResolutionQuery to do it programmatically

task copyJavadocsAndSources {
    inputs.files configurations.runtime
    outputs.dir "${buildDir}/download"
    doLast {
        def componentIds = configurations.runtime.incoming.resolutionResult.allDependencies.collect { it.selected.id }
        ArtifactResolutionResult result = dependencies.createArtifactResolutionQuery()
            .forComponents(componentIds)
            .withArtifacts(JvmLibrary, SourcesArtifact, JavadocArtifact)
            .execute()
        def sourceArtifacts = []
        result.resolvedComponents.each { ComponentArtifactsResult component ->
            Set<ArtifactResult> sources = component.getArtifacts(SourcesArtifact)
            println "Found ${sources.size()} sources for ${component.id}"
            sources.each { ArtifactResult ar ->
                if (ar instanceof ResolvedArtifactResult) {
                    sourceArtifacts << ar.file
                }
            }
        }

        copy {            
            from sourceArtifacts
            into "${buildDir}/download"
        }
    }
}

See https://stackoverflow.com/questions/39975780/how-can-i-use-gradle-to-download-dependencies-and-their-source-files-and-place-t/39981143#39981143

2 Likes
3

I tried both. It doesn’t work :frowning: . IntelliJ still decompiles it when I try to look at code of library.

4

I can only guess that you didn’t actually run the tasks after adding the snippets.

Eg gradlew eclipse or gradlew copyJavadocsAndSources

5

Did it now. Still the same thing.

6

I just realised you are using intellij. Try gradle cleanIdea idea

7

Task “cleanIdea” not found.

8

Did you

apply plugin: 'idea'
9

Yes. It doesn’t work.

10

Can you tell a bit more about the project. Is it a multi-module build? Where are you applying the idea plugin? Are you only doing it for the root project? or are you applying it for all the java projects?

11

It’s not multi module project. I’m applying it right after plugins have been declared e.g

plugins {
id ‘something’
// you know
}

apply plugin: ‘idea’

1 Like
12

did you find a bypass? I encounter the same problem on an artefact (Central Repository: org/json4s/json4s-jackson_2.13/4.0.7)

13

Bypass to what?
That IntelliJ is showing decompiled class file instead of sources?
That library is written in Scala.
So even if IntelliJ knows and has the source jar, the sources cannot be displayed if you don’t have the Scala plugin installed, as the IDE does not know what a Scala file is.
Install the Scala plugin and the Scala source file will be displayed instead.