maven-publish-helper.gradle

apply plugin: 'maven-publish'

task androidJavadocs(type: Javadoc) {
    source = android.sourceSets.main.java.srcDirs
    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
    android.libraryVariants.all { variant ->
        if (variant.name == 'release') {
            owner.classpath += variant.javaCompileProvider.get().classpath
        }
    }
    exclude '**/R.html', '**/R.*.html', '**/index.html'
}

task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
    archiveClassifier.set('javadoc')
    from androidJavadocs.destinationDir
}

task androidSourcesJar(type: Jar) {
    archiveClassifier.set('sources')
    from android.sourceSets.main.java.srcDirs
}

// Because the components are created only during the afterEvaluate phase, you must
// configure your publications using the afterEvaluate() lifecycle method.
afterEvaluate {
    publishing {
        publications {
            // Creates a Maven publication called "release".
            release(MavenPublication) {
                // Applies the component for the release build variant.
                from components.release

                // Adds javadocs and sources as separate jars.
                artifact androidJavadocsJar
                artifact androidSourcesJar

                // You can customize attributes of the publication here or in module's build.gradle file.
                //groupId = 'com.example'
                //artifactId = 'custom-artifact'
                version = android.defaultConfig.versionName // or just '1.0'
            }
        }
    }
}