Changing 'resources' sourceSet in Gradle results in empty 'sources' in Bloop JSON

[mdbergmann]

Relates to #992

I'm working on a Apache Wicket project where html, css and other resource files exist as part of the scala source folder.

In Gradle I can expand the resources sourceSet via:

sourceSets {
    main {
        java {
            srcDirs = []
        }
        scala {
            srcDirs = ['src/main/java', 'src/main/scala']
        }
        resources {
            srcDirs += ['src/main/java', 'src/main/scala']
        }
    }
}

This make Gradle copy any resource file into the build output folder.
However, bloopInstall will create a Bloop JSON project that is missing the 'sources' folders:

        "sources": [
        ],
...
        "resources": [
            "/mypath/dev/WicketUI/src/main/java",
            "/mypath/dev/WicketUI/src/main/scala",
            "/mypath/dev/WicketUI/src/main/resources"
        ],

When I remove the 'resources' definition from the sourceSets it does look like this:

        "sources": [
            "/mypath/dev/WicketUI/src/main/java",
            "/mypath/dev/WicketUI/src/main/scala",
        ],
...
        "resources": [
            "/mypath/dev/WicketUI/src/main/resources"
        ],

As an additional issue:

I did copy manually the source folder to 'sources' in the JSON file while maintaining the three resources folders,
the html, css and other non-compilable resources are not copied to the build output folder.

[Arthurm1]

Looks like a bug - the gradle export doesn't cope with resource and source dirs being the same. I'll look into fixing it.

As far as I remember, resources deliberately aren't copied to the build output folder. As Bloop is not intended for archive/deploy there's no reason to copy the resources dir - it's just used directly.

[mdbergmann]

it's just used directly

That's fine as long as it's in the classpath.

Thanks for looking into it.

[mdbergmann]

If you can direct me where to look I can have a try fixing it.

[mdbergmann]

I would guess the issue might be this:

Line 66 (BloopConverter).

    val resources = getResources(sourceSet)
    val sources = getSources(sourceSet).filterNot(resources.contains)

Unfortunately I can't get the project to build with sbt.

[Arthurm1]

Yes that's the place. I should be able to put a fix in this weekend

In terms of getting the project to build - have you looked at this guide?

[mdbergmann]

I didn't look at this guide but kind of assumed something similar.
Started from scratch though with the guide, but still facing this problem with resoilving the dependency:

[error] sbt.librarymanagement.ResolveException: Error downloading com.dwijnand:sbt-compat;sbtVersion=1.0;scalaVersion=2.12:1.0.0
[error]   Not found
[error]   Not found
[error]   not found: https://repo1.maven.org/maven2/com/dwijnand/sbt-compat_2.12_1.0/1.0.0/sbt-compat-1.0.0.pom

I've checked maven central, it seems this dependency is not there. Seems to not be a direct dependency.

[Arthurm1]

Sorry - beyond my ken - I'm not that familiar with the codebase. You could ask on the gitter channel.