Dokka 1.7.20+ ignores sourceLinks block on android library projects

[Claudemirovsky]

Describe the bug
On dokka v1.7.20 and 1.8.10, the sourceLinks block is ignored on ANDROID library projects, but seems to work as expected on JVM libraries.

Expected behaviour
The source link for methods should appear on generated docs of android library projects.

Screenshots
This screenshot shows the documentation generated by the jvm-lib-working branch of the attached file. Thats the expected behaviour in android-library projects.

This is the actual behaviour, it does not show the [sources] link. This screenshot shows the documentation generated by the android-lib-bug branch of the attached file.

This screenshot was taken while using dokka 1.7.10 on the android-lib-bug branch of the attached file. Note that a "sources" tab appears as expected for this version.

To Reproduce
See dokka-bug.zip
In it there are two branches, jvm-lib-working and android-lib-bug, so you can switch between the functional and the non-functional state.

Step 1: Enter the project directory
Step 2: Switch to android-lib-bug branch
Step 3: Run ./gradlew :lib:dokkaHtml
Step 4: Verify generated docs at lib/build/dokka/html

Dokka configuration
Configuration of dokka used to reproduce the bug

Copy-pasted from the attached project.

tasks.withType<DokkaTask>().configureEach {
    dokkaSourceSets.configureEach {
        offlineMode.set(true)
        sourceLink {
            localDirectory.set(file("src"))
            remoteUrl.set(URL("https://httpbin.org/anything"))
            remoteLineSuffix.set("#L")
        }
    }
}

Installation

• Operating system: GNU/Linux Debian Bookworm
• Build tool: Gradle v7.6
• Dokka version: 1.7.20+

Additional context
As i said, this bug only happens on dokka 1.7.20 and 1.8.10, from 1.7.10 down the sourceLinks block isnt ignored on android library projects.
Although I have no proof, I suspect that this bug is related to this PR.

Are you willing to provide a PR?
Unfortunately for the time being I don't have enough knowledge to fix it.

[IgnatBeresnev]

Although I have no proof, I suspect that this bug is related to #2476.

I don't think this PR is the cause as it only changed the visuals of the source links, it didn't touch the configuration.

And seeing how it's working for non-android projects, I think something configuration-related was broken all of a sudden - maybe our integration with AGP, or maybe there's a bug in KGP or something - it needs to be researched.

[IgnatBeresnev]

There's a similar report in Kotlin Community Slack by @covercash2:

it’s only our Android modules that aren’t linking source docs correctly. it ended up that we do need it to be localDirectory.set(projectDir.resolve("src/main/java"), and in our Kotlin-only module the source code is linked properly. however, all our other modules have Android dependencies and do not link correctly. i’m not certain this is the problem, but it seems to be the only difference i can find