How do I publish a second library from another sourceset in gradle? - gradle

Question

I have this tlib sourceset
sourceSets {
val main by getting
val tlib by creating {
compileClasspath += main.output
runtimeClasspath += main.output
}
val test by getting {
compileClasspath += tlib.output
runtimeClasspath += tlib.output
}
}
configurations {
val tlibCompile by getting {
extendsFrom(configurations["implementation"])
}
}
I am imagining something like this, but this is not complete
publishing {
publications {
val tlibSourcesJar by tasks.registering(Jar::class) {
classifier = "sources"
from(sourceSets["tlib"].allSource)
}
register("mavenTLib", MavenPublication::class) {
from(components["tlib"])
artifact(tlibSourcesJar.get())
}
}
}
but I get
Could not create domain object 'mavenTLib' (MavenPublication)
> SoftwareComponentInternal with name 'tlib' not found.
How can I publish my test lib separately from my main lib?

Answer 1

this works to an extent but is probably not the best way to do it
sourceSets {
val main by getting
val tlib by creating {
compileClasspath += main.output
runtimeClasspath += main.output
}
val test by getting {
compileClasspath += tlib.output
runtimeClasspath += tlib.output
}
}
configurations {
val tlibCompile by getting {
extendsFrom(configurations["implementation"])
}
}
publishing {
publications {
val tlibJar by tasks.registering(Jar::class) {
from(sourceSets["tlib"].output)
}
val tlibSourcesJar by tasks.registering(Jar::class) {
archiveClassifier.set("sources")
from(sourceSets["tlib"].allSource)
}
register("mavenTLib", MavenPublication::class) {
artifactId = "phg-entity-tlib"
artifact(tlibJar.get())
artifact(tlibSourcesJar.get())
}
}
}

Answer 2

I have an example here, unfortunately it is written in Groovy, and I am not yet familiar with the Kotlin way of doing it.
Maybe it still helps:
https://github.com/thokari/gradle-workshop/blob/master/examples/09-multiple-artifacts/build.gradle
The most relevant part is probably this:
outputArchives.each { outputArchive ->
String logicalName = outputArchive.camelCase()
// Add archiving tasks.
// These could be anything with type AbstractArchiveTask (e.g. War, Zip).
task("${logicalName}Jar", type: Jar) { from configurations."${logicalName}Compile" }
task("${logicalName}SourceJar", type: Jar) { from sourceSets."${logicalName}".java }
// Configure the publishing extension added by the 'maven-publish' plugin.
// For every combination of publication and repository, a task with name
// publish<publicationName>PublicationTo<repositoryName>Repository is created.
// The task 'publish' is a shortcut, depending on each one of them.
publishing {
publications {
// Create a publication by calling its name and type.
"${logicalName}"(MavenPublication) {
// Override the artifact id, which defaults to the project name.
artifactId = outputArchive.dashSeparated()
// Publish the artifacts created by the archiving tasks.
artifact tasks."${logicalName}Jar"
artifact(tasks."${logicalName}SourceJar") { classifier 'source' }
}
}
}
}
I also never figured out how to make use of this SoftwareComponent concept. I solved this by calling the artifact method on the archiving tasks that I created, instead of using from(component), I would think this could also be done in Kotlin.