Publishing Gradle version catalog to maven local

Question

I am trying to publish a gradle version catalog to mavenLocal repository in order to share versions between multiple projects.

TLDR; project on github publishing of version catalog does not work.

I was doing as described in the official docs.

In my ./gradle folder i have a *.toml file which describes my version catalog.

Importing it successfully works via

// settings.gradle.kts

rootProject.name = "gradle-version-catalogs"

enableFeaturePreview("VERSION_CATALOGS")

dependencyResolutionManagement {
    versionCatalogs {
        create("quarkus") {
            from(files("gradle/quarkus.versions.toml"))
        }
    }
}

The build script looks like this:

// build.gradle.kts

group = "de.lj"
version = "1.0-SNAPSHOT"

plugins {
    `version-catalog`
    `maven-publish`
}

publishing {
    publications {
        create<MavenPublication>("quarkus") {
            println("Version Catalogs:")
            versionCatalogs.catalogNames.forEach { println(it) }
            from(components["versionCatalog"])
        }
    }
}

Running the gradle publish task results in an artifact de.lj.gradle.version-catalogs:1.0-SNAPSHOT being published to my mavenLocal repository. But there is no de.lj.quarkus which I would like to create.

I am using gradle version 7.3.3 with plugins version-catalog, maven-publish. I pushed my project to github.

Any help is greatly appreciated!

Answer 1

Solution: The block

// settings.gradle.kts

versionCatalogs {
    ...
}

is only needed for projects, that IMPORT the published version catalog. It's not needed in the project defining the version catalog. Instead build the version catalog from the *.toml file:

// build.gradle.kts 

catalog {
    versionCatalog {
        from(files("./gradle/quarkus.versions.toml"))
    }
}

In order to have a version catalog published to mavenLocal with the Coordinates ${my.groupId}:${my.artifactId}:${my.version} set

// settings.gradle.kts 

rootProject.name = "${my.groupId}"

// build.gradle.kts

group = "${my.groupId}"
version = "${my.version}"

Other projects can now reference the versionCatalog with

// settings.gradle.kts

rootProject.name = "version-catalog-import"

enableFeaturePreview("VERSION_CATALOGS")

dependencyResolutionManagement {
    repositories {
        mavenLocal()
    }

    versionCatalogs { 
        create("${my.reference}").from("${my.groupId}:${my.artifactId}:${my.version}")
    }
}

// build.gradles.kts

plugins {
    `kotlin-dsl`
    `version-catalog`
}

dependencies {
    implementation(${my.reference})
}